Consul Package

This package provides a high level interface for resolving the URI for a service that's registered in consul.

Usage

Here is a basic example that should suffice for most cases:

import (
	"github.com/Wikia/go-commons/consul"
)

resolver := consul.NewDefaultResolver()
address, _ := resolver.ResolveURI("user-preference", "production") // returns "http://10.10.10.10:12345"

The above uses some sane defaults for consul. If you need to use a different config you can create a Health client directly and inject that into NewResolver. Example:

import (
	"github.com/hashicorp/consul/api"
	"github.com/Wikia/go-commons/consul"
)

config := api.DefaultConfig()
client, _ := api.NewClient(config)
health := client.Health()
resolver := consul.NewResolver(health)
address, _ := resolver.ResolveURI("user-preference", "production") // returns "http://10.10.10.10:12345"

If you only need to change the consul address, you can do set the following environment variable and use NewDefaultResolver():

export CONSUL_HTTP_ADDR=consul.service.consul:8500

See the package for more details regarding the configuration.