CN108989389B - Method for establishing intelligent contract micro-servitization - Google Patents
Method for establishing intelligent contract micro-servitization Download PDFInfo
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
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- H—ELECTRICITY
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Abstract
The invention provides a method for establishing intelligent contract micro-servitization, which comprises the following steps: step one, designing a basic container of intelligent contract micro-service: (1) implementing an execution container of the single contract micro service by using docker; (2) the upper layer uses kubernets to manage the overall contract; designing a communication mode between intelligent contract micro services, and using a method called by a remote procedure or a method based on RESTFUL interface specifications; step three, designing an operation mode of the integral intelligent contract micro-service: 1) the request of the user is acquired by a specific gateway of the micro service and is analyzed; (2) the gateway checks the single contract and the combined contract to be repackaged into a specific contract service message, and sets a service access sequence; (3) the request message completes the service logic of a single contract and updates the data of each container; (4) the final processing result is returned to the gateway and then delivered to the user; (5) requesting the whole processing flow to be stored in the block chain through the block chain interface.
Description
Technical Field
The invention relates to the field of block chains, intelligent contracts and micro-services, in particular to a method for establishing micro-services of an intelligent contract, which is used for improving the usability and expandability of the intelligent contract.
Background
In 1997, the concept of intelligent contracts was proposed by Nick Szabo and published in "Formalizing and securing relationships on Public Networks", which first analyzed the deficiencies of traditional contracts (paper contracts), such as difficult preservation, weak executable ability, etc. The concept and rationale of intelligent contracts is then presented and illustrates the possibilities and advantages of constructing intelligent contracts using new technologies such as computers, the internet, cryptographic protocols, etc. Although intelligent contract theory is almost concurrent with internet technology (World Wide Web), the practice of application has been seriously behind the theory and lacks a clear path to convert this concept into reality. The intelligent contract has no effective means to control the physical assets and ensure the execution of the contract; secondly, a single computer is difficult to ensure that the terms are executed to obtain the trust of the contracting party, the contracting party needs a reliable environment for interpreting and executing codes, the contracting party cannot check the computer with problems in person, cannot directly observe and verify the execution actions of other contracting parties, and only allows a third party to check the execution records of the contracts of the contracting parties. The block chain technology solves the problems, lays a foundation for the application of the intelligent contract, and meanwhile, the intelligent contract also expands the application range of the block chain. The block chain lays a foundation for recording and transferring the completely digitalized assets, and provides a method for directly controlling the assets for computer codes through the completely digitalized assets, so that the intelligent contract has execution force. On the block chain, the control of the assets is to control the corresponding key authority of the assets, but not any real object. The blockchain makes the computing system a trusted system, which is not limited to the functions of a database, but is also a distributed computer that can execute code and record ownership of digital assets, digital asset ownership can be uploaded and stored in the blockchain, and executed according to instructions, and once the blockchain records contract code, the contractual party can determine that the contract will not be changed.
The existing intelligent contract technology based on the block chain is still in a primary stage, and a plurality of problems are not solved yet, including:
(1) under the low execution efficiency of the intelligent contract based on the block chain, one-time execution of the intelligent contract needs full-node consensus, and a plurality of contracts contained in one block need serial execution, so that the time overhead is overlarge and the efficiency is low;
(2) the intelligent contract is used as a safety problem of code execution on a chain of a block chain, and the contract code is lack of a formalized method to carry out modeling verification on the contract code, so that code safety loopholes are easily caused;
(3) the expandability problem of the intelligent contract, the independence of the intelligent contract is extremely high at present, the business logic is basically not open to the outside, the mutual calling between the contracts is extremely small, and the contracts are difficult to be reused after being used. As the contract business logic gradually develops to be complicated, the size of the contract becomes larger and larger, and the logic coupling inside the contract is too large, so that the maintenance and updating of the contract become extremely complicated.
Disclosure of Invention
The invention concept of the invention comes from the rapid development of cloud computing and block chains, BaaS (Block chain as a service) is rapidly developed, and is similar to IaaS, PaaS and SaaS technologies on early clouds, the BaaS technology aims to package the block chains and the block chain technologies into service, provide rapid and convenient block chain deployment and use functions, and facilitate the use of enterprise-level users, and an intelligent contract based on the block chains is transplanted to the BaaS to become a method for realizing business of each enterprise on the BaaS, how to combine the existing technology and the intelligent contract on the cloud, solve the problem of the existing intelligent contract, and become an important research point.
The invention aims to provide a method for establishing intelligent contract micro-servitization, which comprises the following steps:
designing a basic container of intelligent contract micro-service;
designing a communication mode between intelligent contract micro services;
and step three, designing an operation mode of the integral intelligent contract micro-service.
Preferably, the microservice constructs an application as a series of loosely coupled services, each contract microservice is deployed in a single base container, and provides an independent running, developing and verifying environment for each contract template, the microservice of a single contract is executed in the base container, and the microservice of a single contract in the base container has the functions of singleness, combinability, high integration, high expandability and high verifiability, wherein the functions singleness is that the business aimed by the contract microservice is single; the combinability is that simple contract micro-services can be combined with each other in a lightweight communication mode to form a complex contract, and specific business logic is completed; the high integration, namely the contract micro service can expose the service, is accessed through the lightweight communication service, is packaged into an API (application programming interface) to be used by a user, and is inserted into the business logic of the user; the high expandability means that after the contract micro-service is developed, the contract micro-service can be used only by exposing the self-service to other micro-services and users, and the whole service set meets various new requirements by adding new micro-services or updating the existing micro-services; the high verifiability, namely the state machine scale of the single intelligent contract micro-service is simplified, the formal verification process period is reduced, the verification accuracy is improved, and the combined contract meets the standard of combined verification so as to carry out verification.
Preferably, the step one of designing a base container of the intelligent contract micro-service includes:
(1) implementing an execution container of single contract micro-service by using docker, thereby isolating resources among contracts and enabling the contracts to become independent modules;
(2) the upper layer uses kubernets to manage the overall management of the contracts, including the registration of contract services and the management of contract containers.
Preferably, the second step is to design a communication mode of the intelligent contract micro-service, so as to implement extensibility of the contracts and combined use between the contracts, and complete more complex contract logic, and implement communication between the intelligent contract micro-services in two modes, one is a method using Remote procedure call (Remote procedure call), and the other is a method based on RESTFUL ul interface specification.
Preferably, the restul-based interface specification includes an HTTP protocol.
Preferably, the designing of the intelligent contract micro-service operation mode in the third step includes:
(1) the request of the user is acquired by a specific gateway of the micro service, and the gateway carries out corresponding analysis processing;
(2) the gateway checks the legality of the single contract and the combinability of the combined contract, and after the check is completed, the request of the user is repackaged as information into a specific contract service message, and a service access sequence is set;
(3) the request message enters into each container according to the logic required by the user to complete the service logic of the single contract, and updates the data of each container;
(4) the final processing result is returned to the gateway and then delivered to the user;
(5) and the whole processing flow of the user request is stored into the block chain through the block chain interface.
The method has the advantages that the existing cloud technology is combined with the intelligent contract to form a set of method for micro-servicing the intelligent contract, the expandability of the contract can be effectively improved, and the method has important significance for the development and application of the intelligent contract.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a structural view of a base container of an intelligent contractual microservice according to an embodiment of the invention;
FIG. 2 is a flow diagram of the operation of an intelligent contract microservice according to an embodiment of the invention.
Detailed Description
The micro-service technology on the cloud is a variant of a Service Oriented Architecture (SOA) style, and an application program is constructed into a series of loosely-coupled services, so that the expandability of a project is effectively improved. In a microservice architecture, services should be fine-grained and protocols should be lightweight. The benefit of breaking an application into different small services is that it improves modularity, making the application easier to understand, develop, and test. It also evolves in parallel by making small, autonomous groups develop independently, deploying and extending individual services. While this technology also allows architectures of individual services to emerge through constant reconfiguration, microservice-based architectures can enable continuous delivery and deployment. The micro-service architecture in the cloud technology is applied to the intelligent contract, and the intelligent contract on the cloud is developed in a micro-service mode, so that the problem of poor expandability can be effectively solved.
The method for realizing the micro-servitization of the intelligent contract comprises the following steps:
designing a basic container of intelligent contract micro-service;
designing a communication mode between intelligent contract micro services;
and step three, designing an operation mode of the integral intelligent contract micro-service.
The method comprises the following steps of (I) designing an intelligent contract micro-service container:
the micro-service is a variant of a Service Oriented Architecture (SOA) style, and an application program is constructed into a series of loosely coupled services, so that the expandability of a project can be effectively improved. The intelligent contract is essentially a code for realizing business logic and can be well combined with micro-service. A single contract micro-service is executed in a container, and the intelligent contract micro-service in the container has the following characteristics:
the function is single: the method meets the principle of object-oriented, and aims to ensure high reusability, the service aimed by the intelligent contract micro service is single.
Combinability: the services required by the user are usually complex, and the simple contract micro-services can be combined with each other in a lightweight communication mode to form a complex contract to complete specific service logic.
High melting property: the intelligent contract micro service can expose the service, can be accessed through the lightweight communication service, can be packaged into an API (application programming interface) to be conveniently used by a user, and is inserted into the business logic of the intelligent contract micro service.
High expandability: after the intelligent contract micro-service is developed, the intelligent contract micro-service can be used only by exposing the service of the intelligent contract micro-service to other micro-services and users, and the whole service set can meet various new requirements by adding new micro-services or updating the existing micro-services.
High verifiability: the single intelligent contract micro-service has single function, so that the scale of a generated state machine is simplified, the period of the formal verification process is shortened, and the verification accuracy is improved; the combined contract meets the standard of combined verification and can be well verified by the method.
The execution container of the single contract micro-service is realized by using docker, so that resources among contracts can be well isolated, the contracts are made to be independent modules, and the kubernets are used for managing the whole contract management, including the registration of the contract service and the management of the contract container, at the upper layer, as shown in fig. 1.
(II) communication design related to intelligent contract micro service:
the single contracts run in mutually independent containers, and in order to realize the expandability of the contracts, the contracts can be combined for use, so that more complex contract logics are completed. Communication must be established between the various contract containers. There are two main ways to realize communication between microservices currently in the industry, one is a method using Remote Procedure Call (Remote Procedure Call), and the other is a method based on RESTFUL interface specification (such as HTTP, etc.). The two methods have the advantages that RPC has excellent performance, and the RESTFUL interface-based method is simple and convenient in calling and testing. Since the late contracts are frequently combined, the present embodiment uses a more lightweight restul interface method for communication.
And (III) designing the operation mode of the intelligent contract micro-service:
the realization of the intelligent contract micro-service is divided into deployment and operation, each contract micro-service is deployed in a single container, and each contract template is provided with an independent operation, development and verification environment. The intelligent contract microservice workflow is illustrated in fig. 2.
(1) The user request is acquired by the micro-service specific gateway, and the gateway performs corresponding analysis processing.
(2) The gateway checks the legitimacy of the single contract generated by the request and the combinability of the combined contract, and repackages the request information into a specific contract service message after the check is completed, thereby setting a service access sequence.
(3) The request message enters the business logic of each container to complete the single contract according to the logic required by the user, and updates the data of each container.
(4) The final processing result will be returned to the gateway and then delivered to the user.
(5) The whole processing flow of the request is stored in the block chain through the block chain interface.
In the embodiment, the intelligent contracts are micro-serviced to form individual micro-service contracts, so that the complex contracts are logically decoupled, and the reusability and expandability of the contracts are greatly improved. The application scenario of this embodiment is online shopping. The method comprises the steps of writing all shopping process logic on the network into a contract, generally, the contract logic of shopping is that a buyer and a seller sign a shopping contract on the network to finish the shopping, the buyer injects prepayment into the contract, the buyer receives goods after the seller delivers the goods, if the buyer is satisfied with the goods, the contract is triggered to deliver funds in the contract to the seller, if the buyer is not satisfied with the goods, the buyer applies for return of the goods, and the funds in the contract are returned to the buyer. In reality, different shopping logics form different contracts, wherein most of the clause logics of the contracts are similar to the logics in a large part and only a small part is changed. If different contracts are formed for different shopping logics, the contracts are difficult to reuse or expand, and a large amount of contract redundancy occurs. By using the idea of contract micro-service, the general logic is expressed by using the contract micro-service, and the contract micro-service can be called in different shopping logics, so that the contract availability and expandability are greatly improved, and the contract redundancy is reduced.
The method combines the existing cloud technology and the intelligent contract to form a set of method for micro-service of the intelligent contract, can effectively improve the expandability of the contract, and has important significance on the development and application of the intelligent contract.
While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It will be understood by those skilled in the art that variations and modifications of the embodiments of the present invention can be made without departing from the scope and spirit of the invention.
Claims (2)
1. A method of establishing intelligent contract micro-servings, comprising:
step one, designing a basic container of intelligent contract micro-service, comprising: the execution container of the single contract micro service is realized by using docker, resources among the contracts are isolated, the contracts are enabled to be independent modules, and the kubernets are used for carrying out overall management on the contracts in the upper layer, wherein the overall management comprises the registration of the contract service and the management of the contract container;
designing a communication mode among intelligent contract micro-services, wherein a single contract runs in mutually independent containers, the contracts can be combined for use, more complex contract logics are completed, communication is established among all the contract containers, and the communication mode adopts an RESTFUL interface method for communication;
designing the operation mode of the whole intelligent contract micro-service, wherein the realization of the intelligent contract micro-service is divided into deployment and operation, each contract micro-service is deployed in a single basic container and is provided for the environment of independent operation, development and verification of each contract template, and the workflow corresponding to the operation mode of the intelligent contract micro-service comprises the following steps:
step 31, the user request is obtained by a specific gateway of the micro service, and the gateway performs corresponding analysis processing;
step 32, the gateway checks the legality of the single contract and the combinability of the combined contract, repackages the request information into a specific contract service message after the check is completed, and sets a service access sequence;
step 33, the request message enters each basic container according to the logic required by the user to complete the service logic of the single contract, and updates the data of each basic container;
step 34, the final processing result is returned to the gateway and then delivered to the user;
step 35, the whole request processing flow is stored into the block chain through the block chain interface;
the intelligent contract micro-service constructs an application program into a series of loosely coupled services, each contract micro-service is deployed in a single basic container, and provides an independent running, developing and verifying environment for each contract template, the micro-service of a single contract is executed in the basic container, and the micro-service of a single contract in the basic container has the advantages of functional singleness, combinability, high integration, high expandability and high verifiability, wherein the functional singleness is that the service aimed by the contract micro-service is singleness; the combinability is that simple contract micro-services can be combined with each other in a lightweight communication mode to form a complex contract, and specific business logic is completed; the high integration, namely the contract micro service can expose the service, is accessed through the lightweight communication service, is packaged into an API (application programming interface) to be used by a user, and is inserted into the business logic of the user; the high expandability means that after the contract micro-service is developed, the contract micro-service can be used only by exposing the self-service to other micro-services and users, and the whole service set meets various new requirements by adding new micro-services or updating the existing micro-services; the high verifiability, namely the state machine scale of the single intelligent contract micro-service is simplified, the formal verification process period is reduced, the verification accuracy is improved, and the combined contract meets the standard of combined verification so as to carry out verification.
2. A method of establishing intelligent contract micro-servings as claimed in claim 1, wherein: the RESTFUL-based interface specification includes the HTTP protocol.
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| CN109829013A (en) * | 2018-12-27 | 2019-05-31 | 上海点融信息科技有限责任公司 | For running the method for intelligent contract in block chain network, storage medium, calculating equipment |
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| CN110058950A (en) * | 2019-04-17 | 2019-07-26 | 上海沄界信息科技有限公司 | Distributed cloud computing method and equipment based on serverless backup framework |
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| CN111221591A (en) * | 2019-12-27 | 2020-06-02 | 中国建设银行股份有限公司 | Method, system and medium for detecting availability of micro-service deployed based on Kubernetes |
| CN112184432A (en) * | 2020-03-16 | 2021-01-05 | 北京天德科技有限公司 | Intelligent contract development method based on legal language |
| CN114157581A (en) * | 2020-09-07 | 2022-03-08 | 北京金山云网络技术有限公司 | Method, apparatus, storage medium, and electronic device for providing blockchain service |
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