WO2021109735A1

WO2021109735A1 - Cross-chain-network-based resource processing method, and device

Info

Publication number: WO2021109735A1
Application number: PCT/CN2020/121949
Authority: WO
Inventors: 莫楠; 贺双洪; 石翔; 李辉忠; 张开翔; 范瑞彬
Original assignee: 深圳前海微众银行股份有限公司
Priority date: 2019-12-05
Filing date: 2020-10-19
Publication date: 2021-06-10
Also published as: CN111163129B; CN111163129A

Abstract

A cross-chain-network-based resource processing method and a device, used to improve the flexibility of cross-chain resource processing. The method comprises: a proxy node receiving a resource scheduling request sent by a user terminal, determining, according to a correspondence relationship between a cross-chain resource identifier carried in the resource scheduling request and a blockchain network, a blockchain network corresponding to an identifier of a resource to be scheduled, and scheduling the resource from the blockchain network corresponding to the resource to obtain a scheduling result. The invention configures the proxy node to manage cross-chain resources in a cross-chain network, such that a user terminal is capable of completing cross-chain resource scheduling in the cross-chain network simply by directly sending a resource scheduling request to the proxy node, thereby simplifying an operation process at user terminals. In addition, the method enables different resources in different blockchain networks to be scheduled in a consistent scheduling manner without making adaption for individual blockchain networks, thereby improving flexibility and enhancing user experience.

Description

Resource processing method and device based on cross-chain network

Cross-references to related applications

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on December 5, 2019, the application number is 201911236666.6, and the application name is "a resource processing method and device based on a cross-chain network", the entire content of which is by reference Incorporated in this application.

Technical field

The present invention relates to the technical field of financial technology (Fintech), in particular to a resource processing method and device based on a cross-chain network.

Background technique

With the development of computer technology, more and more technologies are applied in the financial field. The traditional financial industry is gradually changing to Fintech, and blockchain technology is no exception. However, due to the security and real-time requirements of the financial industry, financial technology also puts forward higher requirements on blockchain technology.

Hash locking technology is a commonly used cross-chain technology. In the hash lock technology, the two parties of the cross-chain transaction first lock the assets in the accounts of both parties on the basis of the smart contract, and then enter the original hash value. If both parties can enter the correct original hash value within a limited time, Then both parties to the cross-chain transaction can complete the processing of cross-chain assets. However, this method also requires that the two parties involved in the cross-chain transaction respectively adapt to the blockchain network that executes the cross-chain transaction. Only through the adaptation can the cross-chain assets in the blockchain network be processed, so this method is executing The resource processing of the cross-chain network is less flexible.

In summary, there is an urgent need for a resource processing method based on a cross-chain network to solve the problem of poor flexibility caused by the need to adapt the blockchain network where the resource is located when calling resources in the cross-chain network. technical problem.

Summary of the invention

The present invention provides a resource processing method and device based on a cross-chain network, which is used to solve the technology of poor flexibility caused by the need to adapt the blockchain network where the resource is located when calling resources in the cross-chain network in the prior art problem.

In the first aspect, the present invention provides a resource processing method based on a cross-chain network. The method is suitable for a proxy node. The method includes: the proxy node first receives a resource call request sent by a user, and then according to the identification and zone of the cross-chain resource The corresponding relationship of the blockchain network determines the blockchain network corresponding to the identifier of the resource to be called, and finally calls the resource to be called from the blockchain network corresponding to the resource to be called to obtain the calling result. Wherein, the resource calling request includes the identification of the resource to be called. In the above design, by setting up proxy nodes to manage the cross-chain resources in the cross-chain network, the user can directly send resource call requests to the proxy node to complete the call to the cross-chain resources in the cross-chain network, which helps simplify Operation process on the user side. Moreover, this method can also use a unified calling method to call different resources in different blockchain networks, without the need to adapt each blockchain network one by one, so that it has better flexibility and helps improve users’ Experience.

In an optional implementation manner, the proxy node may also be encapsulated with a management unit corresponding to each blockchain network one-to-one. In this case, before the proxy node receives the resource call request sent by the client, the proxy node can also receive the deployment request sent by the client. The deployment request includes each cross-chain resource to be deployed and the required deployment of each cross-chain resource The identity of the blockchain network. Further, for any cross-chain resource, the proxy node can determine the management unit corresponding to the cross-chain resource according to the identifier of the blockchain network that the cross-chain resource needs to deploy in the deployment request, and then assign the cross-chain resource Distributed to the management unit corresponding to the cross-chain resource, so that the management unit corresponding to the cross-chain resource deploys the cross-chain resource to the blockchain network managed by the management unit corresponding to the cross-chain resource. Finally, the proxy node can also obtain the deployment result of each cross-chain resource by each management unit, and then generate the correspondence between the identifier of the cross-chain resource and the blockchain network according to the deployment result. In the above implementation, by encapsulating multiple management nodes in the proxy node, and placing the management work of cross-chain resources at the proxy node for execution, the call work of the cross-chain resources in each blockchain network is placed in each block Executed at the management unit corresponding to the chain network, on the one hand, it can decouple the management operation and call operation of cross-chain resources, and improve the flexibility of resource processing. On the other hand, it can also reduce the pressure and performance loss of the agent node.

In an optional implementation manner, the proxy node calls the resource to be called from the blockchain network corresponding to the resource to be called to obtain the calling result, which includes: the proxy node first according to the blockchain network corresponding to the identifier of the resource to be called, Determine the target management unit corresponding to the resource to be called, and obtain the identifiers of all the cross-chain resources in the blockchain network managed by the target management unit. If it is determined that all the cross-chain resources include the resource to be called, then according to the resource to be called The identification generates a call instruction and sends it to the target management unit. Among them, the call instruction is used for the target management unit to call the resource to be called in the blockchain network. In the above implementation, by first determining whether the resource to be called belongs to the cross-chain resource managed by the management unit before executing the call operation, not only can the management unit accurately call the cross-chain resource managed by itself, but also avoid unnecessary call operations. , Improve the efficiency of the call.

In an optional implementation manner, the resource call request may also include a call interface, and the call interface may refer to any one or more of the general interfaces of each cross-chain resource. In this case, the proxy node generates the calling instruction according to the identifier of the resource to be called, including: the proxy node generates the calling instruction according to the identifier of the resource to be called and the calling interface. Wherein, the call instruction is used for the target management unit to use the call interface to call the resource to be called in the blockchain network.

In an optional implementation manner, the identifier of the calling resource may be the contract address of the smart contract. In this case, the proxy node generates a call instruction according to the identification of the resource to be called and the call interface, including: the proxy node generates a call instruction according to the contract address and the call interface of the smart contract. Among them, the call instruction is used by the target management unit to generate a contract object according to the contract address of the smart contract, and call the call interface of the contract object to obtain or update the contract data of the smart contract.

In an optional implementation manner, the identifier of the calling resource may be the table name of the data table. In this case, the proxy node generates a call instruction according to the identification of the resource to be called and the call interface, including: the proxy node generates the call instruction according to the table name of the data table and the call interface. Among them, the calling instruction is used for the target management unit to obtain the data table according to the table name of the data table, and to query or modify the data in the data table according to the calling interface. In the above implementation, by setting the same calling interface for various cross-chain resources, users can call each calling resource based on the same input method without adapting to each calling resource, thereby reducing the complexity of calling Improve the efficiency of the call.

In an optional implementation manner, the correspondence between the identifier of the cross-chain resource and the blockchain network may be based on the cross-chain network, the blockchain network included in the cross-chain network, and the cross-chain resource deployed in the blockchain network. The hierarchical relationship is set. In the above implementation, cross-chain resources and blocks are set according to the hierarchical form of each cross-chain network, each cross-chain network in each cross-chain network, and cross-chain resources deployed in the blockchain network. The correspondence of the chain network enables the proxy node to flexibly manage the cross-chain resources in each cross-chain network, which helps the proxy node to quickly determine the blockchain corresponding to the cross-chain resource based on the correspondence when using the correspondence. Network, thereby effectively improving the efficiency of cross-chain resource calls.

In a second aspect, the present invention provides a resource processing device based on a cross-chain network, the device including:

The transceiver module is used to receive the resource call request sent by the user terminal, and the resource call request includes the identifier of the resource to be called;

The determining module is used to determine the blockchain network corresponding to the identifier of the resource to be called based on the correspondence between the identifier of the cross-chain resource and the blockchain network;

The calling module is used to call the resource to be called from the blockchain network corresponding to the resource to be called to obtain the calling result.

In an optional implementation manner, the resource processing device based on the cross-chain network may also be encapsulated with a management unit corresponding to each blockchain network on a one-to-one basis. In this case, the resource processing device based on the cross-chain network may also include a deployment module. Before the transceiver module receives the resource call request sent by the user terminal, the transceiver module may also receive a deployment request sent by the user terminal. The deployment request includes the deployment request. The identity of each deployed cross-chain resource and the blockchain network that each cross-chain resource needs to deploy. Correspondingly, the deployment module can determine the management unit corresponding to the cross-chain resource according to the identifier of the blockchain network that any cross-chain resource needs to deploy in the deployment request, and distribute the cross-chain resource to the corresponding cross-chain resource The management unit, so that the management unit corresponding to the cross-chain resource deploys the cross-chain resource to the blockchain network managed by the management unit corresponding to the cross-chain resource. The transceiver module can also obtain the deployment result of each cross-chain resource by each management unit, and generate the corresponding relationship between the identifier of the cross-chain resource and the blockchain network according to the deployment result.

In an optional implementation manner, the calling module is specifically configured to: first determine the target management unit corresponding to the resource to be called according to the blockchain network corresponding to the identifier of the resource to be called, and then obtain the block managed by the target management unit The identification of all cross-chain resources in the chain network, if it is determined that all the cross-chain resources include the resource to be called, a calling instruction is generated according to the identification of the resource to be called and sent to the target management unit. Among them, the call instruction is used for the target management unit to call the resource to be called in the blockchain network.

In an optional implementation manner, the resource call request may also include a call interface, and the call interface may be any one or more of the general interfaces of each cross-chain resource. In this case, the calling module is specifically used to generate a calling instruction according to the identifier of the resource to be called and the calling interface. Among them, the calling instruction is used by the target management unit to use the calling interface to call the resources to be called in the blockchain network.

In an optional implementation manner, the identifier of the calling resource may be the contract address of the smart contract. In this case, the calling module is specifically used to generate a calling instruction according to the contract address and calling interface of the smart contract. Among them, the call instruction is used by the target management unit to generate a contract object according to the contract address of the smart contract, and call the call interface of the contract object to obtain or update the contract data of the smart contract.

In an optional implementation manner, the identifier of the calling resource may be the table name of the data table. In this case, the calling module is specifically used to generate a calling instruction according to the table name of the data table and the calling interface. Among them, the calling instruction is used for the target management unit to obtain the data table according to the table name of the data table, and to query or modify the data in the data table according to the calling interface.

In an optional implementation manner, the correspondence between the identifier of the cross-chain resource and the blockchain network may be based on the cross-chain network, the blockchain network included in the cross-chain network, and the cross-chain resource deployed in the blockchain network. The hierarchical relationship is set.

In a third aspect, the present invention provides a computing device including at least one processor and at least one memory. The memory may store a computer program. When the computer program is executed by the processor, the processor can execute any of the above-mentioned first aspects. The resource processing method based on the cross-chain network.

In a fourth aspect, the present invention provides a computer-readable storage medium that stores a computer program executable by a computing device. When the computer program runs on the computing device, the computing device can execute any of the above-mentioned Resource processing method of cross-chain network.

These and other aspects of the present invention will be more concise and understandable in the description of the following embodiments.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative labor.

FIG. 1 is a schematic diagram of a system architecture of a cross-chain network provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of a possible system architecture provided by an embodiment of the present invention;

FIG. 3 is a schematic flowchart of a resource processing method based on a cross-chain network provided by an embodiment of the present invention;

4 is a schematic structural diagram of a resource processing device based on a cross-chain network provided by an embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a computing device provided by an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

FIG. 1 is a schematic diagram of a system architecture of a cross-chain network provided by an embodiment of the present invention. As shown in FIG. 1, at least two (ie, two or more) blockchain networks may be provided in the cross-chain network 10 , Such as blockchain network 101, blockchain network 102, and blockchain network 103. Among them, any two of the at least two blockchain networks can be connected according to the set requirements, and the connection method can be a wired connection or a wireless connection, and the specifics are not limited.

Continuing to refer to FIG. 1, each of the at least two blockchain networks may include one or more nodes. For example, the blockchain network 101 may include

nodes

1011, 1012, 1013, and nodes. 1014, any two nodes among the nodes 1011 to 1014 can be communicatively connected to jointly maintain the blockchain system. Each node in the blockchain network can have multiple functions, such as routing functions, transaction functions, blockchain functions, and consensus functions. For example, a node in a blockchain network can transmit transaction data and other information sent by other nodes to more nodes to realize the communication function between nodes. Alternatively, the nodes in the blockchain network can be used to support users to conduct transactions. Alternatively, the nodes in the blockchain network can also be used to record all transactions in history. Alternatively, nodes in the blockchain network can generate new blocks in the blockchain network by verifying and recording transactions. In practical applications, the routing function is a function that each node in the blockchain network must have, and other functions can be set by those skilled in the art according to actual needs.

It should be noted that a node in the blockchain network can refer to a physical machine (server), or can refer to a process or a series of processes running in the server. For example, the node 1011 may be a process running on the server, or it may refer to the server, which is not specifically limited.

In the embodiment of the present invention, dedicated chain resources and cross-chain resources can be deployed in any blockchain network. The dedicated chain resources are the resources required by the blockchain network to execute internal transactions, and the cross-chain resources are the blockchain network. Resources required to perform external transactions with other blockchain networks. For example, when the blockchain network 101 is a transaction chain network, the blockchain network 102 is a settlement chain network, and the blockchain network 103 is a point chain network, the cross-chain network 10 may constitute a cross-chain payment network. Transaction cross-chain resources are deployed on the transaction chain network, settlement cross-chain resources are deployed on the settlement chain network, and point cross-chain resources are deployed on the loyalty chain network. The transaction chain network can call the settlement cross-chain resource of the settlement chain network for asset settlement when using the transaction cross-chain resource to execute the transaction, and can also call the point chain network to update the points according to the asset settlement result of the settlement chain network and the transaction type of the transaction chain network.

It should be noted that the foregoing is only an exemplary simple description, and the block network and the number of nodes in the block network listed therein are only for the convenience of explaining the solution, and do not constitute a limitation on the solution. In a specific implementation, the number of block networks included in the cross-chain network can be greater than 3, for example, it can be 4 or more. Correspondingly, the number of nodes included in each block network can be greater than 4, for example, it can be 5 or more, which is not limited.

FIG. 2 is a schematic diagram of a possible system architecture provided by an embodiment of the present invention. As shown in FIG. 2, the system architecture may be provided with a proxy node 130 and at least one cross-chain network, such as a cross-chain network 10 and a cross-chain network 11. And cross-chain network 12. Among them, the cross-chain network 10 includes the blockchain network 101, the blockchain network 102, and the blockchain network 103, the cross-chain network 11 includes the blockchain network 111 and the blockchain network 112, and the cross-chain network 12 includes Block chain network 121 and block chain network 122. Each blockchain network in each cross-chain network can be set up in the manner shown in Figure 1.

Continuing to refer to FIG. 2, a user terminal 140 may also be provided in the system architecture. The user terminal 140 may be any terminal device set on the developer's side, such as a notebook computer, an Ipad, a mobile phone, and so on. Developers can participate in the development process of the cross-chain network through the client 140.

In the embodiment of the present invention, the proxy node 130 may be connected to the client 140 and each blockchain network respectively. For example, it may be connected in a limited way, or it may be connected in a wireless way, which is not specifically limited.

Based on the system architecture shown in FIG. 1 and FIG. 2, FIG. 3 is a schematic flowchart of a resource processing method provided by an embodiment of the present invention. The method can be applied to a proxy node, such as the proxy node 130 shown in FIG. 2. As shown in Figure 3, the method includes:

Step 301: The proxy node receives a resource invocation request sent by the client, and the resource invocation request includes an identifier of the resource to be invoked.

In an optional implementation manner, the cross-chain resource may be deployed in each blockchain network of the cross-chain network by the developer during the development phase. Cross-chain resources can refer to any type of resources, such as smart contracts deployed on the blockchain network, or data or assets stored in the database of the blockchain network, or can also be stored in the smart contract. The data in the contract. Among them, the storage form of the data may be a data table or other types, such as stacks, graphs, etc., which are not limited.

In one example, the identification of the resource to be called may be composed of the address of the resource to be called, the identification of the blockchain network where the resource to be called is deployed, and the identification of the cross-chain network where the blockchain network where the resource to be called is deployed is located. For example, if the resource to be called is a smart contract 0X1 deployed on the blockchain network 112, the identifier of the resource to be called may be "cross-chain network 11. Blockchain network 112.0X1".

Referring to the system architecture shown in FIG. 2, when it is necessary to call any cross-chain resource in any cross-chain network, the developer can input the identification of the resource to be called on the calling interface of the user terminal 140. In this case, after the client 140 receives the identifier of the resource to be called, it can obtain the Internet Protocol (IP) address of the proxy node 130 and the port number used for the cross-chain service in the proxy node 130, and then based on the The resource call request is generated by calling the identifier of the resource, the IP address of the proxy node 130, and the port number used for the cross-chain service. Wherein, the IP address of the proxy node 130 and the port number used for the cross-chain service can be obtained in advance by the user terminal 140 interacting with the proxy node 130, and can also be updated in real time by the user terminal 140 and the proxy node 130 through interaction.

In an example, the resource invocation request may be a uniform resource locator (URL) address constructed based on the identifier of the resource to be invoked, the IP address of the proxy node, and the port number used for the cross-chain service. For example, if the IP address of the proxy node is ip:127.0.0.1, the port number used for the cross-chain service in the proxy node is 8080, and the identifier of the resource to be called is "cross-chain network 11. Blockchain network 112.0X1", then The resource call request can be "http://127.0.0.1/8080. Cross-chain network 11/Blockchain network 112/0X1".

In step 302, the agent node determines the blockchain network corresponding to the identifier of the resource to be invoked according to the corresponding relationship between the resource identifier and the blockchain network.

In a possible implementation manner, the agent node may also be encapsulated with management units corresponding to each block chain network one-to-one, and the agent node may be indirectly connected to each block chain network through each management unit. For example, continuing to refer to FIG. 2, the proxy node 130 may respectively encapsulate a management unit corresponding to the blockchain network 101, a management unit corresponding to the blockchain network 102, and a management unit corresponding to the blockchain network 103. 3. The management unit 4 corresponding to the blockchain network 111, the management unit 5 corresponding to the blockchain network 112, the management unit 6 corresponding to the blockchain network 121, the management unit 7 corresponding to the blockchain network 122, and the proxy node 130 can The connection to the blockchain network 101 to the blockchain network 103, the blockchain network 111 and the blockchain network 112, and the blockchain network 121 and the blockchain network 122 are realized through the management unit 1 to the management unit 7, respectively.

In this implementation, packaging can have multiple meanings. For example, in one case, the management unit can be a software development kit (SDK) component deployed inside the agent node, or it can be independent of the agent. The equipment outside the node realizes the communication with the agent node through the remote procedure call (Remote Procedure Call, RPC) protocol. Moreover, although the management unit is encapsulated in the agent node, the application program running on the management unit is independent of the application program running on the agent node. The application program running on the management unit is used to manage the nodes and nodes in the connected blockchain network. Resources, and the application program running on the agent node is used to manage the management unit.

In the embodiment of the present invention, the management unit may communicate with each node in the blockchain network corresponding to the management unit. For example, communication can be achieved through wired or wireless connection with each node, or SDK components can be deployed on each node, and communication with each node can be achieved through SDK components on each node, which is not specifically limited.

In an example of this implementation, referring to Figure 2, developers can deploy cross-chain resources in the following ways:

Step a: The developer sends the configuration information of each cross-chain resource to be deployed to the agent node 130 through the client 140.

In the above step a, the configuration information of each cross-chain resource can include the identification of the blockchain network to be deployed by the cross-chain resource, the identification of the cross-chain network where the blockchain network to be deployed is located, and the cross-chain resource . When the types of cross-chain resources are different, the cross-chain resources are also different. For example, if the cross-chain resource is a smart contract, the cross-chain resource may include the implementation logic (or implementation logic and initial data) of the smart contract. For another example, if the cross-chain resource is an asset, the data of the cross-chain resource may include the asset type of each account and the value corresponding to the asset type.

In specific implementation, the proxy node 130 can open the registration interface to each client in advance. If the client 140 has the registration authority, the client 140 can input the configuration information of the cross-chain resource in the registration interface of the proxy node 130, so that the cross-chain resource configuration information can be entered in the registration interface of the proxy node 130. The configuration information of the chain resource is sent to the agent node 130.

Step b: The proxy node 130 determines the management unit corresponding to each cross-chain resource according to the configuration information of each cross-chain resource to be deployed, and distributes each cross-chain resource to be deployed to the corresponding management unit.

In specific implementation, for any cross-chain resource to be deployed, the proxy node 130 may first determine the identity of the blockchain network to be deployed and the cross-chain network where the blockchain network to be deployed is located. The corresponding management unit then distributes the data of the cross-chain resource to the corresponding management unit. For example, as shown in Figure 2, if a certain cross-chain resource is a smart contract, and the blockchain network to be deployed by the smart contract is the blockchain network 112 in the cross-chain system 11, the management unit 5 It is used to manage each node in the blockchain network 112, so the blockchain network corresponding to the smart contract is the management unit 5, and the agent node 130 can send the smart contract to the management unit 5.

Step c: After receiving the cross-chain resource to be deployed, the management unit deploys the cross-chain resource in the blockchain network under its management.

For example, if the management unit 5 receives the smart contract sent by the agent node 130, the management unit 5 can send the smart contract to any node (or all nodes) in the blockchain network 112 through the SDK component deployed on the node , So that each node in the blockchain network 112 deploys the execution contract to the blockchain network 112. If the deployment is successful, any node can send the address of the smart contract deployed in the blockchain network 112 to the management unit 5. If the deployment fails, each node can retry multiple times. If it fails, a response message of deployment failure may be sent to the management unit 5.

In step d, the management unit sends the deployment result of each cross-chain resource to be deployed to the agent node 130.

In the above step d, in the case of successful deployment: if the cross-chain resource is a smart contract, the deployment result of the cross-chain resource can be the address of the smart contract in the blockchain network; if the cross-chain resource is in the data table Data, the deployment result of the cross-chain resource can be the table name of the data table; if the cross-chain resource is an asset, the deployment result of the cross-chain resource can be the asset account name.

In step e, the proxy node 130 sends the deployment result of each management unit to the client 140.

In an example, the proxy node 130 can also generate a correspondence between the cross-chain resource and the blockchain network according to the deployment result of each management unit, and the correspondence can be used to indicate the deployed cross-chain resources and the assigned block. Correspondence of the chain network. Wherein, the corresponding relationship may be stored in the form of a table, or may also be stored in the form of a graph, which is not limited.

For example, taking the system architecture shown in FIG. 2 as an example, Table 1 exemplarily shows a schematic table of the correspondence between cross-chain resources and blockchain networks.

Table 1

As shown in Table 1, the correspondence between cross-chain resources and blockchain networks can include the resource deployment status of each cross-chain network managed by the agent node 130, and the resource deployment status of each cross-chain network can include the cross-chain network. The cross-chain resources deployed on each blockchain network in the chain network and the management unit corresponding to each blockchain network. For example, the cross-chain network 11 includes a blockchain network 111 and a blockchain network 112. The blockchain network 111 corresponds to the management unit 4. The blockchain network 111 is deployed with smart contract 0X3 and data table 2, and the blockchain network 112 Corresponding to the management unit 5, a data table 3 is deployed on the blockchain network 112.

In the embodiment of the present invention, cross-chain resources and blocks are set according to the hierarchical form of each cross-chain network managed by the agent node, each blockchain network in each cross-chain network, and cross-chain resources deployed in the blockchain network. The correspondence relationship of the chain network not only enables the agent node to flexibly manage the cross-chain resources in each cross-chain network, but also helps the agent node to quickly determine the blockchain network corresponding to the cross-chain resource based on the corresponding relationship, so as to improve the cross-chain resources. The efficiency of chain resource calls.

In an optional implementation manner, after receiving the resource call request, the proxy node 130 may first parse the resource call request to obtain the identifier of the resource to be called, and then query the resource identifier and block according to the identifier of the resource to be called. The corresponding relationship of the chain network to determine the blockchain network corresponding to the identifier of the resource to be called.

Step 303: The proxy node calls the resource to be called from the blockchain system corresponding to the resource to be called, and obtains the calling result.

In the embodiment of the present invention, the proxy node can also be directly connected to each node in each cross-chain network under management. In this way, after determining the blockchain network corresponding to the identifier of the resource to be called, the proxy node can directly The call request corresponding to the resource is sent to any node of the blockchain network, so that each node in the blockchain network calls the resource to be called to perform the call operation. However, in this way, the agent node not only needs to manage the cross-chain resources of each cross-chain network, but also needs to perform the call operation of the cross-chain resources, so the agent node is under greater pressure and the performance loss is more serious.

In order to solve the above problems, in a possible implementation manner, the proxy node is indirectly connected to the nodes in each cross-chain network through each management unit, and each management unit manages a blockchain network. In this way, after the identification of the resource to be invoked is obtained from the invocation request, the proxy node can first query Table 1 according to the identification of the cross-chain network in the identification of the resource to be invoked to obtain each blockchain network in the cross-chain network And the management unit corresponding to each blockchain network, and then according to the identifier of the blockchain network in the identifier of the resource to be called, the management unit corresponding to the blockchain network in the identifier of the resource to be called is determined, and the management unit As the management unit corresponding to the resource to be called, the call request of the resource to be called is sent to the management unit corresponding to the resource to be called.

For example, if the resource call request is "http://127.0.0.1/8080. Cross-chain network 11/Blockchain network 111/0X3", the proxy node can start from "http://127.0.0.1/8080 .Cross-chain network 11/blockchain network 111/0X3" restores the identity of the resource to be called "cross-chain network 11. Blockchain network 111.0X3", and then according to the cross-chain network in the identity of the resource to be called The identification "cross-chain network 11" is pulled from Table 1 to all management units under cross-chain network 11, namely management unit 4 and management unit 5. Management unit 4 is used to manage blockchain network 111, and management unit 5 is used to Manage the blockchain network 112. In this way, the proxy node can determine the management unit that manages the blockchain network 111 from all the management units under the cross-chain network 11 according to the identifier of the blockchain network "blockchain network 111" in the identifier of the resource to be called, namely The management unit 4 may further generate a call instruction according to the identification of the cross-chain resource smart contract 0X3 to be called, and send the call instruction to the management unit 4.

In the above implementation, by placing the management work of cross-chain resources at the proxy node for execution, the call work of cross-chain resources in each blockchain network is placed at the management unit corresponding to each blockchain network for execution, not only can The decoupling of cross-chain resource management and cross-chain resource invocation work improves the flexibility of resource processing, and can also reduce the pressure and performance loss of agent nodes.

In a possible implementation manner, the resource call request may also include a call interface, and the call interface may be one or more of the general interfaces of various cross-chain resources. In this case, after determining the management unit corresponding to the cross-chain resource to be called, the proxy node may also generate a call instruction according to the identification and call interface of the cross-chain resource to be called, and send the call instruction to the corresponding management unit. Among them, the general interface of various cross-chain resources can be set based on the resource access requirements of various cross-chain resources, or can be set by those skilled in the art based on experience, and the details are not limited.

Exemplarily, cross-chain resources can have the following general interfaces:

The getData() interface is used to obtain the data or assets in the data table or database deployed in the blockchain network;

The setData() interface is used to update the data or assets in the data table or database deployed in the blockchain network. The update operation is to add, delete or modify;

The call() interface is used to call the logic of the smart contract deployed in the blockchain network to obtain the data in the smart contract;

sendTransaction() interface: used to call the logic of the smart contract deployed in the blockchain network to operate on the data in the smart contract;

The registerEventHandler() interface is used to register a buried event on the blockchain network. When a buried event on the blockchain network is triggered, this interface can actively push the information that the buried event is triggered to the set address.

In this example, the call() interface is only used to obtain the data in the smart contract, but does not execute the transaction. Therefore, the call() interface will not update the data in the smart contract, and accordingly will not update the data in the blockchain network. data. The sendTransaction() interface is used to perform operations using the data in the smart contract, so the sendTransaction() interface will update the data in the smart contract, and the data in the blockchain network will be updated accordingly.

In the embodiment of the present invention, the getData() interface and the setData() interface are usually used to operate on the data table, and the call() interface and the sendTransaction() interface are usually used to operate on the smart contract.

For example, if the cross-chain resource is a smart contract 0X3 (that is, the identifier of the cross-chain resource is the address of the smart contract 0X03), then after the smart contract 0X3 is deployed to the blockchain network 111, the blockchain network 111 will be in the smart contract The address of the contract 0X3 stores the above 5 call interfaces of the smart contract 0X3 and the contract data of the smart contract 0X3. In this way, if the management unit 4 receives the call instruction of "smart contract 0X3, call() interface", the management unit 4 can first create a smart contract 0X3 contract object based on the address of the smart contract 0X3, and then call the smart contract 0X3 contract object The call() interface is used to obtain the contract data in the smart contract 0X3, that is, the contract data stored at the address of the smart contract 0X3, and get the call result.

For another example, if the cross-chain resource is a data table Table (that is, the identifier of the cross-chain resource is the table name Table of the data table), after the data table Table is deployed to the blockchain network, the blockchain network will The address of the table stores the above five calling interfaces of the data table and the data of the data table. In this way, if the management unit receives the call instruction of "data table Table, setData() interface", the management unit can first open the data table Table according to the table name of the data table Table, and create the contract of the first contract during the opening process Object, and then call the setData() interface of the contract object of the first contract to update the data in the data table Table, and get the call result. In this case, the first contract may be a contract pre-deployed in the blockchain network, and the first contract is used to operate on the data in the data table.

It should be noted that the foregoing is only an exemplary description, and does not constitute a limitation to the solution. It is understandable that the calling operation in the embodiment of the present invention may be a calling operation in a single blockchain network, or may be an interactive calling operation in multiple blockchain networks, and is not limited.

In the embodiment of the present invention, by setting the same calling interface for various calling resources, the user can call each calling resource based on the same input mode without adapting to each calling resource, thereby reducing the complexity of development , Improve the efficiency of development.

In an example, the following interface can also be set in the management unit:

The getResource() interface is used to obtain all the resources managed by the management unit;

The getBlockHeader() interface is used to obtain the block header information of the blockchain network managed by the management unit.

In specific implementation, after receiving the call instruction, the management unit can first use the getResource() interface to pull all the resources managed by the management unit, and determine whether all the resources managed include the resources to be called in the call instruction. If it contains, it can send a call failure response message to the proxy node 130, and if it contains, it can perform the call operation.

In the above example, by judging whether the resource to be called belongs to the cross-chain resource managed by itself before executing the call operation, not only can the management unit accurately call the cross-chain resource managed by itself, but also avoid unnecessary call operations and improve The efficiency of the call.

In the embodiment of the present invention, after the management unit receives the call result sent by the blockchain network, the management unit may also send the call result of the resource to be called back to the client via the proxy node. In this way, after the developer obtains the call result through the user terminal, he can perform follow-up operations based on the call result, such as determining whether each cross-chain resource deployed on the cross-chain network is accurate, whether the cross-chain network is online, and so on.

In the above-mentioned embodiment of the present invention, the proxy node first receives the resource call request sent by the user terminal, and then determines the corresponding relationship between the identifier of the cross-chain resource carried in the resource call request and the blockchain network. The blockchain network then calls the resource to be called from the blockchain network corresponding to the resource to be called to obtain the calling result. In this embodiment, a proxy node is set to manage the cross-chain resources in the cross-chain network, so that the user can directly send a resource call request to the proxy node to complete the call to the cross-chain resources in the cross-chain network, which is helpful Simplify the operation process on the user side. Moreover, this method can use a unified calling method to call different resources in different blockchain networks, without the need to adapt each blockchain network one by one, so that the flexibility is better and the user experience is better.

In view of the foregoing method flow, an embodiment of the present invention also provides a resource processing device based on a cross-chain network, and the specific content of the device can be implemented with reference to the foregoing method.

Fig. 4 is a resource processing device based on a cross-chain network provided by an embodiment of the present invention, and the device includes:

The transceiver module 401 is configured to receive a resource call request sent by a user terminal, where the resource call request includes an identifier of the resource to be called;

The determining module 402 is configured to determine the blockchain network corresponding to the identifier of the resource to be called according to the corresponding relationship between the identifier of the cross-chain resource and the blockchain network;

The calling module 403 is used to call the resource to be called from the blockchain network corresponding to the resource to be called to obtain the calling result.

Optionally, a management unit corresponding to each blockchain network is packaged in the device. The device may also include a deployment module 404. Before the transceiver module 401 receives a resource invocation request sent by the client, the transceiver module 401 is further configured to receive a deployment request sent by the client. The deployment request includes The identity of each deployed cross-chain resource and the blockchain network that each cross-chain resource needs to be deployed. The deployment module 404 is configured to, for any cross-chain resource, determine the management unit corresponding to the cross-chain resource according to the identifier of the blockchain network that the cross-chain resource needs to be deployed in the deployment request, and then The cross-chain resource is distributed to the management unit corresponding to the cross-chain resource, so that the management unit deploys the cross-chain resource to the blockchain network managed by the management unit; and obtains the management unit The deployment result of each cross-chain resource is described, and the corresponding relationship between the identifier of the cross-chain resource and the blockchain network is generated according to the deployment result.

Optionally, the calling module 403 is specifically configured to: determine the target management unit corresponding to the resource to be called according to the blockchain network corresponding to the identifier of the resource to be called, and obtain the area managed by the target management unit. The identification of all cross-chain resources in the blockchain network is based on the identification of all the cross-chain resources in the blockchain network managed by the target management unit, if it is determined that all the cross-chain resources include the resource to be called, A call instruction is generated according to the identifier of the resource to be called and sent to the target management unit; the call instruction is used by the target management unit to call the resource to be called in the blockchain network.

Optionally, the resource call request further includes a call interface, and the call interface is any one or more of the general interfaces of each cross-chain resource. In this case, the invoking module 403 is specifically configured to: generate the invoking instruction according to the identifier of the resource to be invoked and the invoking interface, and the invoking instruction is used by the target management unit to use the invoking interface to pair The resource to be called in the blockchain network is called.

Optionally, the identifier of the calling resource is the contract address of the smart contract. In this case, the invoking module 403 is specifically configured to generate the invoking instruction according to the contract address of the smart contract and the invoking interface, and the invoking instruction is used by the target management unit according to the smart contract. The contract address generates a contract object, and calls the calling interface of the contract object to obtain or update the contract data of the smart contract.

Optionally, the identifier of the calling resource is the table name of the data table. In this case, the invoking module 403 is specifically configured to generate the invoking instruction according to the table name of the data table and the invoking interface, and the invoking instruction is used by the target management unit according to the table of the data table. Obtain the data table by name, and query or modify the data in the data table according to the calling interface.

Optionally, the corresponding relationship between the identifier of the cross-chain resource and the blockchain network is set according to the hierarchical relationship of the cross-chain network, the blockchain network included in the cross-chain network, and the cross-chain resources deployed in the blockchain network.

It can be seen from the above content that in the above-mentioned embodiment of the present invention, the proxy node first receives the resource call request sent by the client, and then determines the correspondence between the cross-chain resource identifier carried in the resource call request and the blockchain network. The blockchain network corresponding to the identifier of the resource to be called calls the resource to be called from the blockchain network corresponding to the resource to be called, and the calling result is obtained. In this embodiment, by setting a proxy node to manage the cross-chain resources in the cross-chain network, the user can directly send a resource call request to the proxy node to complete the call to the cross-chain resources in the cross-chain network, which is helpful To simplify the operation process of the user side. Moreover, this method can also use a unified calling method to call different resources of different blockchain networks, without the need to adapt each blockchain network one by one, so that the flexibility is better and the user experience is better.

Based on the same inventive concept, an embodiment of the present invention also provides a computing device. As shown in FIG. 5, the computing device may include at least one processor 501 and a memory 502 connected to the at least one processor. In the embodiment of the present invention, The specific connection medium between the processor 501 and the memory 502 is not limited. In FIG. 5, the processor 501 and the memory 502 are connected through a bus as an example. The bus can be divided into address bus, data bus, control bus and so on.

In the embodiment of the present invention, the memory 502 stores instructions that can be executed by at least one processor 501. By executing the instructions stored in the memory 502, the at least one processor 501 can execute the aforementioned resource processing method based on a cross-chain network. A step of.

Among them, the processor 501 is the control center of the computing device, which can use various interfaces and lines to connect various parts of the computing device, and realize data by running or executing instructions stored in the memory 502 and calling data stored in the memory 502. deal with. Optionally, the processor 501 may include one or more processing units, and the processor 501 may integrate an application processor and a modem processor. The application processor mainly processes the operating system, user interface, and application programs. The adjustment processor mainly handles issuing instructions. It can be understood that the foregoing modem processor may not be integrated into the processor 501. In some embodiments, the processor 501 and the memory 502 may be implemented on the same chip, and in some embodiments, they may also be implemented on separate chips.

The processor 501 may be a general-purpose processor, such as a central processing unit (CPU), a digital signal processor, an application specific integrated circuit (ASIC), a field programmable gate array or other programmable logic devices, discrete gates or transistors Logic devices and discrete hardware components can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiment of resource processing based on a cross-chain network can be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

The memory 502, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules. The memory 502 may include at least one type of storage medium, such as flash memory, hard disk, multimedia card, card-type memory, random access memory (Random Access Memory, RAM), static random access memory (Static Random Access Memory, SRAM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), magnetic memory, disk , CD, etc. The memory 502 is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto. The memory 502 in the embodiment of the present invention may also be a circuit or any other device capable of realizing a storage function for storing program instructions and/or data.

Based on the same inventive concept, embodiments of the present invention also provide a computer-readable storage medium that stores a computer program executable by a computing device, and when the program runs on the computing device, the computing device executes The resource processing method based on the cross-chain network as described in any of the above-mentioned Figure 3.

Those skilled in the art should understand that the embodiments of the present invention can be provided as a method or a computer program product. Therefore, the present invention may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

The present invention is described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

A resource processing method based on a cross-chain network, characterized in that the method includes:

The proxy node receives a resource call request sent by the user terminal, where the resource call request includes an identifier of the resource to be called;

The proxy node determines the blockchain network corresponding to the identifier of the resource to be invoked according to the correspondence between the identifier of the cross-chain resource and the blockchain network;

The proxy node calls the resource to be called from the blockchain network corresponding to the resource to be called, and obtains the calling result.
The method according to claim 1, wherein the agent node is encapsulated with a management unit corresponding to each blockchain network one-to-one;

Before the proxy node receives the resource call request sent by the user terminal, the method further includes:

The proxy node receives the deployment request sent by the client; the deployment request includes each cross-chain resource to be deployed and the identifier of the blockchain network to be deployed for each cross-chain resource;

For any cross-chain resource, the proxy node determines the management unit corresponding to the cross-chain resource according to the identifier of the blockchain network that the cross-chain resource needs to deploy in the deployment request, and transfers the cross-chain resource Distribute the resources to the management unit corresponding to the cross-chain resource, so that the management unit deploys the cross-chain resource to the blockchain network managed by the management unit;

The proxy node obtains the deployment result of each cross-chain resource by each management unit, and generates a correspondence between the identifier of the cross-chain resource and the blockchain network according to the deployment result.
The method according to claim 2, wherein the proxy node calls the resource to be called from a blockchain network corresponding to the resource to be called to obtain the calling result, comprising:

The proxy node determines the target management unit corresponding to the resource to be called according to the blockchain network corresponding to the identifier of the resource to be called;

Acquiring, by the proxy node, the identifiers of all cross-chain resources in the blockchain network managed by the target management unit;

According to the identifiers of all cross-chain resources in the blockchain network managed by the target management unit, the proxy node determines that the resources to be called are included in all the cross-chain resources, then according to the identification of the resources to be called The identification generates a call instruction and sends it to the target management unit; the call instruction is used by the target management unit to call the resource to be called in the blockchain network.
The method according to claim 3, wherein the resource call request further includes a call interface, and the call interface is any one or more of the general interfaces of each cross-chain resource;

The proxy node generates a call instruction according to the identifier of the resource to be called, including:

The proxy node generates the call instruction according to the identifier of the resource to be called and the call interface, and the call instruction is used by the target management unit to use the call interface to make the call to the block chain network. Resources are called.
The method according to claim 4, wherein the identifier of the calling resource is a contract address of a smart contract;

The proxy node generating the calling instruction according to the identifier of the resource to be called and the calling interface includes:

The proxy node generates the call instruction according to the contract address of the smart contract and the call interface, and the call instruction is used by the target management unit to generate a contract object according to the contract address of the smart contract, and call the contract The calling interface of the object obtains or updates the contract data of the smart contract.
The method according to claim 4, wherein the identifier of the calling resource is a table name of a data table;

The proxy node generating the calling instruction according to the identifier of the resource to be called and the calling interface includes:

The proxy node generates the call instruction according to the table name of the data table and the call interface, and the call instruction is used by the target management unit to obtain the data table according to the table name of the data table, and according to the name of the data table. The calling interface is used to query or modify the data in the data table.
The method according to any one of claims 1 to 6, wherein the correspondence between the identifier of the cross-chain resource and the blockchain network is in accordance with the cross-chain network, the blockchain network included in the cross-chain network, and the zone Set the hierarchical relationship of the cross-chain resources deployed in the blockchain network.
A resource processing device based on a cross-chain network, characterized in that the device includes:

The transceiver module is configured to receive a resource call request sent by the user terminal, where the resource call request includes the identifier of the resource to be called;

The determining module is used to determine the blockchain network corresponding to the identifier of the resource to be invoked according to the corresponding relationship between the identifier of the cross-chain resource and the blockchain network;

The calling module is used to call the resource to be called from the blockchain network corresponding to the resource to be called to obtain the calling result.
The device according to claim 8, wherein the device is encapsulated with a management unit corresponding to each blockchain network in a one-to-one manner;

The device also includes a deployment module;

Before the transceiver module receives the resource call request sent by the client, it is also used to receive the deployment request sent by the client; the deployment request includes each cross-chain resource to be deployed and the deployment required for each cross-chain resource The identity of the blockchain network;

The deployment module is configured to determine the management unit corresponding to the cross-chain resource according to the identifier of the blockchain network to be deployed by the cross-chain resource in the deployment request for any cross-chain resource, and The cross-chain resource is distributed to the management unit corresponding to the cross-chain resource, so that the management unit deploys the cross-chain resource to the blockchain network managed by the management unit; and obtains all the management units The deployment result of each cross-chain resource is described, and the corresponding relationship between the identifier of the cross-chain resource and the blockchain network is generated according to the deployment result.
The device according to claim 9, wherein the calling module is specifically configured to:

Determine the target management unit corresponding to the resource to be called according to the blockchain network corresponding to the identifier of the resource to be called;

Acquiring the identifiers of all cross-chain resources in the blockchain network managed by the target management unit;

According to the identifiers of all cross-chain resources in the blockchain network managed by the target management unit, if it is determined that all the cross-chain resources include the resource to be called, a call instruction is generated according to the identifier of the resource to be called , And sent to the target management unit; the call instruction is used by the target management unit to call the resource to be called in the blockchain network.
The device according to claim 10, wherein the resource calling request further comprises a calling interface, and the calling interface is any one or more of the general interfaces of each cross-chain resource;

The calling module is specifically used for:

The call instruction is generated according to the identifier of the resource to be called and the call interface, and the call instruction is used by the target management unit to call the resource to be called in the blockchain network using the call interface.
The device according to claim 11, wherein the identifier of the calling resource is a contract address of a smart contract;

The calling module is specifically used for:

The call instruction is generated according to the contract address of the smart contract and the call interface, and the call instruction is used by the target management unit to generate a contract object according to the contract address of the smart contract, and call the contract object Call the interface to obtain or update the contract data of the smart contract.
The device according to claim 11, wherein the identifier of the calling resource is a table name of a data table;

The calling module is specifically used for:

The call instruction is generated according to the table name of the data table and the call interface, and the call instruction is used for the target management unit to obtain the data table according to the table name of the data table, and query according to the call interface Or modify the data in the data table.
The device according to any one of claims 8 to 13, wherein the correspondence between the identifier of the cross-chain resource and the blockchain network is in accordance with the cross-chain network, the blockchain network included in the cross-chain network, and the zone. Set the hierarchical relationship of the cross-chain resources deployed in the blockchain network.
A computing device, comprising at least one processor and at least one memory, wherein the memory stores a computer program, and when the program is executed by the processor, the processor executes claim 1 ~7 The method of any one of claims.
A computer-readable storage medium, characterized in that it stores a computer program executable by a computing device, and when the program runs on the computing device, the computing device executes any one of claims 1-7 Require the described method.