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Asim Aslam
2017-10-26 12:16:17 +01:00
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@@ -33,61 +33,36 @@ The [**examples**](https://github.com/micro/examples) directory contains example
Watch the [Golang UK Conf 2016](https://www.youtube.com/watch?v=xspaDovwk34) video for a high level overview. Watch the [Golang UK Conf 2016](https://www.youtube.com/watch?v=xspaDovwk34) video for a high level overview.
## Getting Started ## Getting started
This is a quick getting started guide with the greeter service example. - [Service Discovery](#service-discovery)
- [Writing a Service](#writing-a-service)
- [Writing a Function](#writing-a-function)
- [Plugins](#plugins)
- [Wrappers](#wrappers)
### Prereq: Service Discovery ## Service Discovery
Service discovery is required to resolve services to their addresses. Service discovery is used to resolve service names to addresses.
The default discovery plugin is consul. Discovery is however pluggable so you can use ### Consul
etcd, kubernetes, zookeeper, etc. Plugins are in [micro/go-plugins](https://github.com/micro/go-plugins).
Consul is used as the default service discovery system. Discovery is however pluggable so you can use etcd, kubernetes, zookeeper, etc.
Plugins are in the [micro/go-plugins](https://github.com/micro/go-plugins) repo.
[Install Consul](https://www.consul.io/intro/getting-started/install.html)
### Multicast DNS ### Multicast DNS
[Multicast DNS](https://en.wikipedia.org/wiki/Multicast_DNS) is a built in service discovery plugin for a zero dependency configuration. [Multicast DNS](https://en.wikipedia.org/wiki/Multicast_DNS) is a built in service discovery plugin for a zero dependency configuration.
Pass `--registry=mdns` to any command or the enviroment variable MICRO_REGISTRY=mdns Pass `--registry=mdns` to any command or the enviroment variable MICRO_REGISTRY=mdns
``` ```
go run main.go --registry=mdns go run main.go --registry=mdns
``` ```
### Consul
Here's a quick start for the default service discovery system consul.
On Mac OS
```
brew install consul
consul agent -dev
```
[Further installation instructions](https://www.consul.io/intro/getting-started/install.html)
### Run Service
```
go get github.com/micro/examples/service && service
```
Output
```
2016/03/14 10:59:14 Listening on [::]:50137
2016/03/14 10:59:14 Broker Listening on [::]:50138
2016/03/14 10:59:14 Registering node: greeter-ca62b017-e9d3-11e5-9bbb-68a86d0d36b6
```
### Call Service
```
service --run_client
```
Output
```
Hello John
```
## Writing a service ## Writing a service
This is a simple greeter RPC service example This is a simple greeter RPC service example