Extract heroku api function into its own file 🐿 v2.10.3

lib/heroku-api.js

@@ -0,0 +1,24 @@
+function herokuApi ({ endpoint, authToken }) {
+	return fetch(
+		`https://api.heroku.com${endpoint}`,
+		{
+			headers: {
+				Accept: 'Accept: application/vnd.heroku+json; version=3',
+				'Content-Type': 'application/json',
+				Authorization: `Bearer ${authToken}`
+			}
+		}
+	).then(response => {
+		const { ok, status, statusText } = response;
+		if (!ok) {
+			let err = new Error(`BadResponse: ${status} ${statusText}`);
+			err.name = 'BAD_RESPONSE';
+			err.status = status;
+			throw err;
+		}
+
+		return response.json();
+	});
+}
+
+module.exports = herokuApi;

lib/pipelines.js

@@ -2,50 +2,41 @@
 const herokuAuthToken = require('./heroku-auth-token');
 const co = require('co');
 const shellpromise = require('shellpromise');
+const api = require('./heroku-api');
 const spawn = require('child_process').spawn;
 
-function api (url, token){
-	return fetch(
-		'https://api.heroku.com' + url,
-		{
-			headers: {
-				'Accept': 'Accept: application/vnd.heroku+json; version=3',
-				'Content-Type': 'application/json',
-				'Authorization': 'Bearer ' + token
-			}
-		}
-	).then(response => {
-		if(!response.ok){
-			let err = new Error(`BadResponse: ${response.status} ${response.statusText}`);
-			err.name = 'BAD_RESPONSE';
-			err.status = response.status;
-			throw err;
-		}
-
-		return response.json();
-	});
-}
-
 async function info (pipelineName){
-	const token = await herokuAuthToken();
-	const pipeline = await api(`/pipelines/${pipelineName}`, token);
+	const authToken = await herokuAuthToken();
+	const pipeline = await api({
+		endpoint: `/pipelines/${pipelineName}`,
+		authToken
+	});
 
 	return pipeline;
 }
 
 function getApps (pipelineName){
 	return co(function* (){
-		let token = yield herokuAuthToken();
-		let pipelines = yield api('/pipelines', token);
+		let authToken = yield herokuAuthToken();
+		let pipelines = yield api({
+			endpoint: '/pipelines',
+			authToken
+		});
 		let pipeline = pipelines.find(p => p.name === pipelineName);
 		if(!pipeline){
 			throw new Error('Could not find pipeline ' + pipeline);
 		}
 
-		let couplings = yield api('/pipelines/' + pipeline.id + '/pipeline-couplings', token);
+		let couplings = yield api({
+			endpoint: `/pipelines/${pipeline.id}/pipeline-couplings`,
+			authToken
+		});
 		let result = { staging:null, production:{ us:null,eu:null }, all:[] };
 		for(let coupling of couplings){
-			let app = yield api('/apps/' + coupling.app.id, token);
+			let app = yield api({
+				endpoint: `/apps/${coupling.app.id}`,
+				authToken
+			});
 			result.all.push(app.name);
 			if(coupling.stage === 'staging'){
 				result.staging = app.name;