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consul-client

v5.0.0

Published

Client code for service discovery and invocation

Downloads

15

Readme

consul-client Build Status

Client code for service discovery and invocation

Example

'use strict';

var consulClient = require('consul-client');

var consulHost = 'my.consul.com'; // e.g 172.x.x.x:8500
var consulRequest = consulClient(consulHost);

var config = {
  serviceName: 'users',
  version: '1.0.0',
  endpoint: 'users/login',
  method: 'POST',
  body: {
    username: 'will',
    password: 'p@ssword'
  }
};

// Discovers an instance of the users service
// and POSTs body to it's /users/login route.
consulRequest(config)
  .then(console.log) // log successes
  .catch(console.log); // catch and log all errors

Upgrade Path 3.0.0 to 4.0.0

The 3.0.0 version of consul-client depended on a module called got-promise which returned promises backed by the expanded bluebird API for promises. The got-promise module is deprecated because got supports promises by default now. Version 4.0.0 of consul-client depends directly on got, but because got uses pinkie-promise as a Promise polyfill instead of bluebird, any code which used version 3.0.0 of consul-client and took advantage of bluebird features will break. To fix this issue you can either not use any of the cool features of bluebird or you can explicitly wrap all of your calls to consul-client manually with Bluebird.resolve.

import Bluebird from 'bluebird';
import consulClient from 'consul-client';

function consulRequestBluebirdDecorator(consulRequest) {
  return function(config) {
    return Bluebird.resolve(consulRequest(config));
  }
}

const consulHost = 'my.consul.com'; // e.g 172.x.x.x:8500
const consulRequest = consulRequestBluebirdDecorator(consulClient(consulHost));

// Discovers an instance of the users service
// and POSTs body to it's /users/login route.
consulRequest(config)
    .map(console.log) // USE BLUEBIRD!!! map and log successes
    .catch(console.log); // catch and log all errors

For convenience this wrapper is provided for you, just change all of your require('consul-client') to require('consul-client/bluebird').