Rewrite to fix fetch issues

index.js

@@ -1,40 +1,41 @@
 const fetch = require('node-fetch');
-const encode = require('./lib/encode.js');
+const encode = require('./encode.js');
 
-exports.authorizationCodeUri = (appCredentials) => {
+exports.formAuthorizationUri = (config) => {
     return new Promise ((fulfill, reject) => {
-        if (appCredentials.client.id === undefined) {
-            reject('Not enough information to build authorization URL.');
-        }
-        if (appCredentials.responseType !== undefined) {
-            fulfill(`${appCredentials.uri.authorization}?client_id=${encodeURI(appCredentials.client.id)}&response_type=${encodeURI(appCredentials.responseType)}&redirect_uri=${encodeURI(appCredentials.uri.redirect)}&scope=${appCredentials.scope}`);
-        } else if (appCredentials.responseType === undefined) {
-            fulfill(`${appCredentials.uri.authorization}?client_id=${encodeURI(appCredentials.client.id)}&redirect_uri=${encodeURI(appCredentials.uri.redirect)}&scope=${appCredentials.scope}`);
+        if (config.client.id === undefined || config.client.secret === undefined || config.uri.authorization === undefined || config.uri.redirect === undefined || config.scope === undefined) {
+            reject('Not enough information to form authorization URL');
+        } else {
+            if (config.responseType !== undefined) {
+                fulfill(`${config.uri.authorization}?client_id=${encodeURI(config.client.id)}&response_type=${encodeURI(config.responseType)}&scope=${encodeURI(config.scope)}&redirect_uri=${encodeURIComponent(config.uri.redirect)}`);
+            } else if (config.responseType === undefined) {
+                fulfill(`${config.uri.authorization}?client_id=${encodeURI(config.client.id)}&scope=${encodeURI(config.scope)}&redirect_uri=${encodeURIComponent(config.uri.redirect)}`);
+            }
         }
     });
 }
 
-exports.getAccessToken = (app) => {
+exports.getAccessToken = (config) => {
     return new Promise ((fulfill, reject) => {
-        let encodedClientCredentials = encode.base64Encode(`${app.client.id}:${app.client.secret}`);
+        let encodedClientCredentials = encode.base64(`${config.client.id}:${config.client.secret}`);
 
-        fetch(app.uri.authorization, {
+        fetch(config.uri.token, {
             method: 'POST',
-            header: {
+            headers: {
                 'Authorization': `Basic ${encodedClientCredentials}`,
-                'Content-Type': 'application/x-ww-form-urlencoded'
+                'Content-Type': 'application/x-www-form-urlencoded'
             },
-            body: `client_id=${app.client.id}&grant_type=authorization_code&redirect_uri-&${encodeURI(app.uri.redirect)}&code=${app.code}`
-        }).then((token) => {
-            let accessToken = token.json();
-
-            if (accessToken.error !== undefined) {
-                reject(accessToken);
-            } else {
-                fulfill(accessToken);
-            }
+            body: `code=${encodeURI(config.code)}&grant_type=authorization_code&redirect_uri=${encodeURI(config.uri.redirect)}`
         }).catch((error) => {
-            reject(error);
+            let tokenError = error.json();
+            reject(tokenError);
+        }).then((response) => {
+            return response.json().catch((parseError) => {
+                console.log(`Error parsing token: ${parseError}`);
+                reject(parseError);
+            });
+        }).then((accessToken) => {
+            fulfill(accessToken);
         });
     });
 }