Skip to content
Consul client integration for Hapiness framework
Branch: master
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Type Name Latest commit message Commit time
Failed to load latest commit information.
src
test
tools
.gitignore
.istanbul.yml
.nvmrc
.travis.yml
LICENSE.md
Makefile
README.md
package-lock.json
package.json
tsconfig.build.json
tsconfig.json
tslint.json

README.md

Hapiness

Consul Module

Consul module for the Hapiness framework.

To get started with consul, you can begin with having a look at the consul official documentation

Table of contents

Using your module inside Hapiness application

yarn or npm it in your package.json

$ npm install --save @hapiness/core @hapiness/consul rxjs

or

$ yarn add @hapiness/core @hapiness/consul rxjs
"dependencies": {
    "@hapiness/consul": "^1.0.0",
    "@hapiness/core": "^1.5.1",
    "rxjs": "^5.5.7",
    //...
}
//...

Using Consul inside your hapiness application

Import the module

You need to include ConsulModule in the imports section of your module definition.

@HapinessModule(
    {
        version: '1.0.0',
        declarations: [/* your declarations */],
        providers: [/* your providers */],
        exports: [/* your exports */],
        imports: [ConsulModule /* other modules */]
    }
)
export class MyModule { /* ... */ }

Bootstrap the extension

You need to inject the extension in bootstrap using setConfig to instantiate the module.

The config properties allowed for the extensions are defined like this:

export interface HapinessConsulClientOptions {
    scheme?: string;
    host?: string;
    port?: string;
    defaults?: {
        consistent?: boolean;
        dc?: string;
        stale?: boolean;
        token?: string;
        wait?: string;
        wan?: boolean;
        ctx?: NodeJS.EventEmitter;
        timeout?: number;
    };
    ca?: string;
    baseUrl?: string;
}

Then just do like this:

Hapiness
    .bootstrap(
        MyModule,
        [
            ConsulExt.setConfig({
                /* Put your config here */
            })
        ])
    .catch(err => done(err));

Use the exposed service

This library is in fact a wrapper of the famous consul node library but wrap all its functions to returns rxjs Observable

You can see the doc by clicking here

We provide a wrapper called ConsulService exposing a clientgetter that will allow you to access the consul client.

class FooProvider {

    constructor(private _consul: ConsulService) {}

    bar(): Observable<string> {
        // Getting a key from the KV client of consul
    	return this._consul.client.kv.get('hello');
    }


    acquireLock(): void {
        // Create a consul lock
        const lock = this._consul.client.lock({ key: 'test' });

        // Listen to lock events
        lock.on('acquire', () => {
            console.log('lock acquired'));
            lock.release();
        });
        lock.on('release', () => console.log('lock released'));
        lock.on('error', () => console.log('lock error:', err));
        lock.on('end', (err) => console.log('lock released or there was a permanent failure'));

        // Acquire the lock
        lock.acquire();
    }

}

Back to top

Contributing

To set up your development environment:

  1. clone the repo to your workspace,
  2. in the shell cd to the main folder,
  3. hit npm or yarn install,
  4. run npm or yarn run test.
    • It will lint the code and execute all tests.
    • The test coverage report can be viewed from ./coverage/lcov-report/index.html.

Back to top

Maintainers

tadaweb
Julien Fauville Antoine Gomez Sébastien Ritz Nicolas Jessel

Back to top

License

Copyright (c) 2018 Hapiness Licensed under the MIT license.

Back to top

You can’t perform that action at this time.