74 lines
4.2 KiB
Markdown
74 lines
4.2 KiB
Markdown
# Go Micro [](https://opensource.org/licenses/Apache-2.0) [](https://pkg.go.dev/github.com/micro/go-micro?tab=doc) [](https://travis-ci.org/micro/go-micro) [](https://goreportcard.com/report/github.com/micro/go-micro)
|
|
|
|
Go Micro is a framework for distributed systems development.
|
|
|
|
## Overview
|
|
|
|
Go Micro provides the core requirements for distributed systems development including RPC and Event driven communication.
|
|
The **Micro** philosophy is sane defaults with a pluggable architecture. We provide defaults to get you started quickly
|
|
but everything can be easily swapped out.
|
|
|
|
## Features
|
|
|
|
Go Micro abstracts away the details of distributed systems. Here are the main features.
|
|
|
|
- **Authentication** - Auth is built in as a first class citizen. Authentication and authorization enable secure
|
|
zero trust networking by providing every service an identity and certificates. This additionally includes rule
|
|
based access control.
|
|
|
|
- **Dynamic Config** - Load and hot reload dynamic config from anywhere. The config interface provides a way to load application
|
|
level config from any source such as env vars, file, etcd. You can merge the sources and even define fallbacks.
|
|
|
|
- **Data Storage** - A simple data store interface to read, write and delete records. It includes support for memory, file and
|
|
CockroachDB by default. State and persistence becomes a core requirement beyond prototyping and Micro looks to build that into the framework.
|
|
|
|
- **Service Discovery** - Automatic service registration and name resolution. Service discovery is at the core of micro service
|
|
development. When service A needs to speak to service B it needs the location of that service. The default discovery mechanism is
|
|
multicast DNS (mdns), a zeroconf system.
|
|
|
|
- **Load Balancing** - Client side load balancing built on service discovery. Once we have the addresses of any number of instances
|
|
of a service we now need a way to decide which node to route to. We use random hashed load balancing to provide even distribution
|
|
across the services and retry a different node if there's a problem.
|
|
|
|
- **Message Encoding** - Dynamic message encoding based on content-type. The client and server will use codecs along with content-type
|
|
to seamlessly encode and decode Go types for you. Any variety of messages could be encoded and sent from different clients. The client
|
|
and server handle this by default. This includes protobuf and json by default.
|
|
|
|
- **gRPC Transport** - gRPC based request/response with support for bidirectional streaming. We provide an abstraction for synchronous communication. A request made to a service will be automatically resolved, load balanced, dialled and streamed.
|
|
|
|
- **Async Messaging** - PubSub is built in as a first class citizen for asynchronous communication and event driven architectures.
|
|
Event notifications are a core pattern in micro service development. The default messaging system is a HTTP event message broker.
|
|
|
|
- **Synchronization** - Distributed systems are often built in an eventually consistent manner. Support for distributed locking and
|
|
leadership are built in as a Sync interface. When using an eventually consistent database or scheduling use the Sync interface.
|
|
|
|
- **Pluggable Interfaces** - Go Micro makes use of Go interfaces for each distributed system abstraction. Because of this these interfaces
|
|
are pluggable and allows Go Micro to be runtime agnostic. You can plugin any underlying technology. Find plugins in
|
|
[github.com/micro/go-plugins](https://github.com/micro/go-plugins).
|
|
|
|
## Getting Started
|
|
|
|
To make use of Go Micro
|
|
|
|
```golang
|
|
import "github.com/micro/go-micro/v2"
|
|
|
|
// create a new service
|
|
service := micro.NewService(
|
|
micro.Name("helloworld"),
|
|
)
|
|
|
|
// initialise flags
|
|
service.Init()
|
|
|
|
// start the service
|
|
service.Run()
|
|
```
|
|
|
|
See the [docs](https://dev.micro.mu) for detailed information on the architecture, installation and use of go-micro.
|
|
|
|
## License
|
|
|
|
Go Micro is Apache 2.0 licensed.
|
|
|