A Self-Evolved Microservice Framework in Go

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This is a major upgrade version of jfeng45/servicetmpl.

The followings are a series of articles to explain the different areas of the application design:

• Go Microservice with Clean Architecture-A Major Upgrade
• A Self-Evolved Microservice Framework in Go
• A Non-Intrusive Transaction Management Lib in Go — How to Use It
• A Non-Intrusive Transaction Management Lib in Go — How it Works?

Getting Started

Installation and Setting Up

Don't need to finish all steps in this section up-front to get the code up running. The simplest way is to get the code from github and run it and come back to install the part when there is a real need. However, it will encounter an error when accesses the database. So, I'd recommend you install at least one database ( MySQL is better), then most of the code will work.

Download Code

go get github.com/jfeng45/servicetmpl1

Set Up MySQL

There are two database implementations, MySQL and CouchDB, but most functions are implemented in MySQL. You'd better install at least one of them.

Install MySQL
run SQL script in script folder to create database and table

Install CouchDB

The code works fine without it. CouchDB is created to show the feature of switching database by changing configuration.

Installation on Windows

Installation on Linux

Installation on Mac

CouchDB Example

Set up CouchDB

Access "Fauxton" through browser: http://localhost:5984/_utils/# (login with: admin/admin).
Create new database "service_config" in "Fauxton".
Add the following document to the database ( "_id" and "_rev" are generated by database, no need to change it):
{
  "_id": "80a9134c7dfa53f67f6be214e1000fa7",
  "_rev": "4-f45fb8bdd454a71e6ae88bdeea8a0b4c",
  "uid": 10,
  "username": "Tony",
  "department": "IT",
  "created": "2018-02-17T15:04:05-03:00"
}

Install Cache Service (Another Microservice)

Without it, calling another Microservice piece won't work, the rest of application works fine. Please follow instructions in reservegrpc to set up the service.

Start Application

Start MySQL Server

cd [MySQLroot]/bin
mysqld

Start CouchDB Server

It should already have been started

Start Cache Service

Please follow instructions in reservegrpc to start the server.

Run main

Run as a local application

In "main()" function of "main.go", there are two functions "testMySql()" and "testCouchDB()". "testMySql()" reads configurations from "configs/appConifgDev.yaml" and accesses MySQL. "testCouchDB()" reads from "configs/appConifgProd.yaml" and access CouchDB. There are multiple functions in "testMySql()", you can focus on testing one each time by commenting out others.

cd [rootOfProject]/cmd
go run main.go

Run as a gRPC Microservice application

Start gRPC Server

cd [rootOfProject]/cmd/grpcserver
go run grpcServerMain.go

Start gRPC Client

cd [rootOfProject]/cmd/grpcclient
go run grpcClientMain.go

License

MIT License