0.0.5 • Public • Published


npm install --save hapiest-cloudfront-url

Basic usage

I highly recommend you use this with node-config if possible though it's not a requirement.

With node-config

Include a config section that adheres to the following (assuming JSON format):

    "myCloudfrontDistribution": {
      "cloudfrontDomainName": "somedomain.cloudfront.net",
      "enabled": "true",
      "origins": [{
        "host": "mybucket.s3.amazonaws.com",
        "path": "/public"
        "host": "www.mysite.com",
        "path": "my/crazy/path"
        "host": "localhost",
        "port": 3000,
        "path": "localstorage/bucket/public"

You then simply use the createFromNodeConfig function provided:

const NodeConfig = require('config');
const CfUrlServiceFactory = require('hapiest-cloudfront-url');
const cfUrlService = CfUrlServiceFactory.createFromNodeConfig(NodeConfig, 'myCloudfrontDistribution');

Without node-config

const CfUrlServiceFactory = require('hapiest-cloudfront-url');
const cfUrlService = CfUrlServiceFactory.create({
    cloudfrontDomainName: 'somedomain.cloudfront.net',
    enabled: true,
    origins: [{
        host: 'mybucket.s3.amazonaws.com',
        path: '/public'
        host: 'www.mysite.com',
        path: 'my/crazy/path'
        host: 'localhost',
        port: 3000,
        path: 'localstorage/bucket/public'

Converting an origin URL to Cloudfront URL

When the originUrl provided the convertUrl function matches one of the URLs associated with the distribution, the return value is a URL relative to the Cloudfront domain.

const originUrl = 'http://mybucket.s3.amazonaws.com/public/images/image.jpg';
const cfUrl = cfUrlService.convertUrl(originUrl);
// http://somedomain.cloudfront.net/images/image.jpg

const originUrl2 = 'https://www.mysite.com/my/crazy/path/something.txt';
const cfUrl2 = cfUrlService.convertUrl(originUrl2);
// https://somedomain.cloudfront.net/something.txt

const originUrl3 = 'http://localhost:3000/localstorage/bucket/public/images/thumb.jpg'
const cfUrl3 = cfUrlService.convertUrl(originUrl3);
// http://somedomain.cloudfront.net/images/thumb.jpg

If the provided URL does not match an origin, the provided URL is simply returned:

const originalUrl = 'http://www.someothersite.com/does/not/match/an/origin.jpg';
const cfUrl = cfUrlService.convertUrl(originUrl);
// 'http://www.someothersite.com/does/not/match/an/origin.jpg'

When enabled=false, convertUrl always returns the original URL though you can override that behavior by passing in a second parameter of true.

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  • jonathanfulton
  • njgerner