Merge branch 'master' into toggle_claire

1 files changed, 179 insertions, 0 deletions

diff --git a/src/server/youtubeApi/youtubeApiSample.js b/src/server/youtubeApi/youtubeApiSample.js
new file mode 100644
index 000000000..50b3c7b38
--- /dev/null
+++ b/src/server/youtubeApi/youtubeApiSample.js
@@ -0,0 +1,179 @@
+const fs = require('fs');
+const readline = require('readline');
+const { google } = require('googleapis');
+const OAuth2 = google.auth.OAuth2;
+
+
+// If modifying these scopes, delete your previously saved credentials
+// at ~/.credentials/youtube-nodejs-quickstart.json
+let SCOPES = ['https://www.googleapis.com/auth/youtube.readonly'];
+let TOKEN_DIR = (process.env.HOME || process.env.HOMEPATH ||
+    process.env.USERPROFILE) + '/.credentials/';
+let TOKEN_PATH = TOKEN_DIR + 'youtube-nodejs-quickstart.json';
+
+module.exports.readApiKey = (callback) => {
+    fs.readFile('client_secret.json', function processClientSecrets(err, content) {
+        if (err) {
+            console.log('Error loading client secret file: ' + err);
+            return;
+        }
+        callback(content);
+    });
+}
+
+module.exports.authorizedGetChannel = (apiKey) => {
+    //this didnt get called
+    // Authorize a client with the loaded credentials, then call the YouTube API.
+    authorize(JSON.parse(apiKey), getChannel);
+}
+
+module.exports.authorizedGetVideos = (apiKey, userInput, callBack) => {
+    authorize(JSON.parse(apiKey), getVideos, { userInput: userInput, callBack: callBack });
+}
+
+module.exports.authorizedGetVideoDetails = (apiKey, videoIds, callBack) => {
+    authorize(JSON.parse(apiKey), getVideoDetails, { videoIds: videoIds, callBack: callBack });
+}
+
+
+/**
+ * Create an OAuth2 client with the given credentials, and then execute the
+ * given callback function.
+ *
+ * @param {Object} credentials The authorization client credentials.
+ * @param {function} callback The callback to call with the authorized client.
+ */
+function authorize(credentials, callback, args = {}) {
+    let clientSecret = credentials.installed.client_secret;
+    let clientId = credentials.installed.client_id;
+    let redirectUrl = credentials.installed.redirect_uris[0];
+    let oauth2Client = new OAuth2(clientId, clientSecret, redirectUrl);
+
+    // Check if we have previously stored a token.
+    fs.readFile(TOKEN_PATH, function (err, token) {
+        if (err) {
+            getNewToken(oauth2Client, callback);
+        } else {
+            oauth2Client.credentials = JSON.parse(token);
+            callback(oauth2Client, args);
+        }
+    });
+}
+
+/**
+ * Get and store new token after prompting for user authorization, and then
+ * execute the given callback with the authorized OAuth2 client.
+ *
+ * @param {google.auth.OAuth2} oauth2Client The OAuth2 client to get token for.
+ * @param {getEventsCallback} callback The callback to call with the authorized
+ *     client.
+ */
+function getNewToken(oauth2Client, callback) {
+    var authUrl = oauth2Client.generateAuthUrl({
+        access_type: 'offline',
+        scope: SCOPES
+    });
+    console.log('Authorize this app by visiting this url: ', authUrl);
+    var rl = readline.createInterface({
+        input: process.stdin,
+        output: process.stdout
+    });
+    rl.question('Enter the code from that page here: ', function (code) {
+        rl.close();
+        oauth2Client.getToken(code, function (err, token) {
+            if (err) {
+                console.log('Error while trying to retrieve access token', err);
+                return;
+            }
+            oauth2Client.credentials = token;
+            storeToken(token);
+            callback(oauth2Client);
+        });
+    });
+}
+
+/**
+ * Store token to disk be used in later program executions.
+ *
+ * @param {Object} token The token to store to disk.
+ */
+function storeToken(token) {
+    try {
+        fs.mkdirSync(TOKEN_DIR);
+    } catch (err) {
+        if (err.code != 'EEXIST') {
+            throw err;
+        }
+    }
+    fs.writeFile(TOKEN_PATH, JSON.stringify(token), (err) => {
+        if (err) throw err;
+        console.log('Token stored to ' + TOKEN_PATH);
+    });
+    console.log('Token stored to ' + TOKEN_PATH);
+}
+
+/**
+ * Lists the names and IDs of up to 10 files.
+ *
+ * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
+ */
+function getChannel(auth) {
+    var service = google.youtube('v3');
+    service.channels.list({
+        auth: auth,
+        part: 'snippet,contentDetails,statistics',
+        forUsername: 'GoogleDevelopers'
+    }, function (err, response) {
+        if (err) {
+            console.log('The API returned an error: ' + err);
+            return;
+        }
+        var channels = response.data.items;
+        if (channels.length == 0) {
+            console.log('No channel found.');
+        } else {
+            console.log('This channel\'s ID is %s. Its title is \'%s\', and ' +
+                'it has %s views.',
+                channels[0].id,
+                channels[0].snippet.title,
+                channels[0].statistics.viewCount);
+        }
+    });
+}
+
+function getVideos(auth, args) {
+    let service = google.youtube('v3');
+    service.search.list({
+        auth: auth,
+        part: 'id, snippet',
+        type: 'video',
+        q: args.userInput,
+        maxResults: 10
+    }, function (err, response) {
+        if (err) {
+            console.log('The API returned an error: ' + err);
+            return;
+        }
+        let videos = response.data.items;
+        args.callBack(videos);
+    });
+}
+
+function getVideoDetails(auth, args) {
+    if (args.videoIds === undefined) {
+        return;
+    }
+    let service = google.youtube('v3');
+    service.videos.list({
+        auth: auth,
+        part: 'contentDetails, statistics',
+        id: args.videoIds
+    }, function (err, response) {
+        if (err) {
+            console.log('The API returned an error from details: ' + err);
+            return;
+        }
+        let videoDetails = response.data.items;
+        args.callBack(videoDetails);
+    });
+}
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