在 Node.js 中運用大數據產生 Google 簡報檔案

git clone https://github.com/googleworkspace/slides-api.git 

npm install 

node . 

-- Start generating slides. -- TODO: Get Client Secrets TODO: Authorize TODO: Get Data from BigQuery TODO: Create Slides TODO: Open Slides -- Finished generating slides. -- 

const fs = require('fs');  /**  * Loads client secrets from a local file.  * @return {Promise} A promise to return the secrets.  */ module.exports.getClientSecrets = () => {   return new Promise((resolve, reject) => {     fs.readFile('client_secret.json', (err, content) => {       if (err) return reject('Error loading client secret file: ' + err);       console.log('loaded secrets...');       resolve(JSON.parse(content));     });   }); } 

const fs = require('fs'); const readline = require('readline'); const openurl = require('openurl'); const googleAuth = require('google-auth-library'); const TOKEN_DIR = (process.env.HOME || process.env.HOMEPATH ||       process.env.USERPROFILE) + '/.credentials/'; const TOKEN_PATH = TOKEN_DIR + 'slides.googleapis.com-nodejs-quickstart.json';  // If modifying these scopes, delete your previously saved credentials // at ~/.credentials/slides.googleapis.com-nodejs-quickstart.json const SCOPES = [   'https://www.googleapis.com/auth/presentations', // needed to create slides   'https://www.googleapis.com/auth/drive', // read and write files   'https://www.googleapis.com/auth/bigquery.readonly' // needed for bigquery ];  /**  * Loads client secrets from a local file.  * @return {Promise} A promise to return the secrets.  */ module.exports.getClientSecrets = () => {   return new Promise((resolve, reject) => {     fs.readFile('client_secret.json', (err, content) => {       if (err) return reject('Error loading client secret file: ' + err);       console.log('loaded secrets...');       resolve(JSON.parse(content));     });   }); }  /**  * Create an OAuth2 client promise with the given credentials.  * @param {Object} credentials The authorization client credentials.  * @param {function} callback The callback for the authorized client.  * @return {Promise} A promise to return the OAuth client.  */ module.exports.authorize = (credentials) => {   return new Promise((resolve, reject) => {     console.log('authorizing...');     const clientSecret = credentials.installed.client_secret;     const clientId = credentials.installed.client_id;     const redirectUrl = credentials.installed.redirect_uris[0];     const auth = new googleAuth();     const oauth2Client = new auth.OAuth2(clientId, clientSecret, redirectUrl);      // Check if we have previously stored a token.     fs.readFile(TOKEN_PATH, (err, token) => {       if (err) {         getNewToken(oauth2Client).then(() => {           resolve(oauth2Client);         });       } else {         oauth2Client.credentials = JSON.parse(token);         resolve(oauth2Client);       }     });   }); }  /**  * Get and store new token after prompting for user authorization, and then  * fulfills the promise. Modifies the `oauth2Client` object.  * @param {google.auth.OAuth2} oauth2Client The OAuth2 client to get token for.  * @return {Promise} A promise to modify the oauth2Client credentials.  */ function getNewToken(oauth2Client) {   console.log('getting new auth token...');   openurl.open(oauth2Client.generateAuthUrl({     access_type: 'offline',     scope: SCOPES   }));    console.log(''); // \n   return new Promise((resolve, reject) => {     const rl = readline.createInterface({       input: process.stdin,       output: process.stdout     });     rl.question('Enter the code from that page here: ', (code) => {       rl.close();       oauth2Client.getToken(code, (err, token) => {         if (err) return reject(err);         oauth2Client.credentials = token;         let storeTokenErr = storeToken(token);         if (storeTokenErr) return reject(storeTokenErr);         resolve();       });     });   }); }  /**  * Store token to disk be used in later program executions.  * @param {Object} token The token to store to disk.  * @return {Error?} Returns an error or undefined if there is no error.  */ function storeToken(token) {   try {     fs.mkdirSync(TOKEN_DIR);     fs.writeFileSync(TOKEN_PATH, JSON.stringify(token));   } catch (err) {     if (err.code != 'EEXIST') return err;   }   console.log('Token stored to ' + TOKEN_PATH); } 

WITH AllLicenses AS (   SELECT * FROM `bigquery-public-data.github_repos.licenses` ) SELECT   license,   COUNT(*) AS count,   ROUND((COUNT(*) / (SELECT COUNT(*) FROM AllLicenses)) * 100, 2) AS percent FROM `bigquery-public-data.github_repos.licenses` GROUP BY license ORDER BY count DESC LIMIT 10 

const google = require('googleapis'); const read = require('read-file'); const BigQuery = require('@google-cloud/bigquery'); const bigquery = BigQuery({   credentials: require('./service_account_secret.json') });  // See codelab for other queries. const query = ` WITH AllLicenses AS (   SELECT * FROM \`bigquery-public-data.github_repos.licenses\` ) SELECT   license,   COUNT(*) AS count,   ROUND((COUNT(*) / (SELECT COUNT(*) FROM AllLicenses)) * 100, 2) AS percent FROM \`bigquery-public-data.github_repos.licenses\` GROUP BY license ORDER BY count DESC LIMIT 10 `;  /**  * Get the license data from BigQuery and our license data.  * @return {Promise} A promise to return an object of licenses keyed by name.  */ module.exports.getLicenseData = (auth) => {   console.log('querying BigQuery...');   return bigquery.query({     query,     useLegacySql: false,     useQueryCache: true,   }).then(bqData => Promise.all(bqData[0].map(getLicenseText)))     .then(licenseData => new Promise((resolve, reject) => {       resolve([auth, licenseData]);     }))     .catch((err) => console.error('BigQuery error:', err)); }  /**  * Gets a promise to get the license text about a license  * @param {object} licenseDatum An object with the license's  *   `license`, `count`, and `percent`  * @return {Promise} A promise to return license data with license text.  */ function getLicenseText(licenseDatum) {   const licenseName = licenseDatum.license;   return new Promise((resolve, reject) => {     read(`licenses/${licenseName}.txt`, 'utf8', (err, buffer) => {       if (err) return reject(err);       resolve({         licenseName,         count: licenseDatum.count,         percent: licenseDatum.percent,         license: buffer.substring(0, 1200) // first 1200 characters       });     });   }); } 

const google = require('googleapis'); const slides = google.slides('v1'); const drive = google.drive('v3'); const openurl = require('openurl'); const commaNumber = require('comma-number');  const SLIDE_TITLE_TEXT = 'Open Source Licenses Analysis';  /**  * Get a single slide json request  * @param {object} licenseData data about the license  * @param {object} index the slide index  * @return {object} The json for the Slides API  * @example licenseData: {  *            "licenseName": "mit",  *            "percent": "12.5",  *            "count": "1667029"  *            license:"<body>"  *          }  * @example index: 3  */ function createSlideJSON(licenseData, index) {   // Then update the slides.   const ID_TITLE_SLIDE = 'id_title_slide';   const ID_TITLE_SLIDE_TITLE = 'id_title_slide_title';   const ID_TITLE_SLIDE_BODY = 'id_title_slide_body';    return [{     // Creates a "TITLE_AND_BODY" slide with objectId references     createSlide: {       objectId: `${ID_TITLE_SLIDE}_${index}`,       slideLayoutReference: {         predefinedLayout: 'TITLE_AND_BODY'       },       placeholderIdMappings: [{         layoutPlaceholder: {           type: 'TITLE'         },         objectId: `${ID_TITLE_SLIDE_TITLE}_${index}`       }, {         layoutPlaceholder: {           type: 'BODY'         },         objectId: `${ID_TITLE_SLIDE_BODY}_${index}`       }]     }   }, {     // Inserts the license name, percent, and count in the title     insertText: {       objectId: `${ID_TITLE_SLIDE_TITLE}_${index}`,       text: `#${index + 1} ${licenseData.licenseName}  — ~${licenseData.percent}% (${commaNumber(licenseData.count)} repos)`     }   }, {     // Inserts the license in the text body paragraph     insertText: {       objectId: `${ID_TITLE_SLIDE_BODY}_${index}`,       text: licenseData.license     }   }, {     // Formats the slide paragraph's font     updateParagraphStyle: {       objectId: `${ID_TITLE_SLIDE_BODY}_${index}`,       fields: '*',       style: {         lineSpacing: 10,         spaceAbove: {magnitude: 0, unit: 'PT'},         spaceBelow: {magnitude: 0, unit: 'PT'},       }     }   }, {     // Formats the slide text style     updateTextStyle: {       objectId: `${ID_TITLE_SLIDE_BODY}_${index}`,       style: {         bold: true,         italic: true,         fontSize: {           magnitude: 10,           unit: 'PT'         }       },       fields: '*',     }   }]; }  /**  * Creates slides for our presentation.  * @param {authAndGHData} An array with our Auth object and the GitHub data.  * @return {Promise} A promise to return a new presentation.  * @see https://developers.google.com/apis-explorer/#p/slides/v1/  */ module.exports.createSlides = (authAndGHData) => new Promise((resolve, reject) => {   console.log('creating slides...');   const [auth, ghData] = authAndGHData;    // First copy the template slide from drive.   drive.files.copy({     auth: auth,     fileId: '1toV2zL0PrXJOfFJU-NYDKbPx9W0C4I-I8iT85TS0fik',     fields: 'id,name,webViewLink',     resource: {       name: SLIDE_TITLE_TEXT     }   }, (err, presentation) => {     if (err) return reject(err);      const allSlides = ghData.map((data, index) => createSlideJSON(data, index));     slideRequests = [].concat.apply([], allSlides); // flatten the slide requests     slideRequests.push({       replaceAllText: {         replaceText: SLIDE_TITLE_TEXT,         containsText: { text: '{{TITLE}}' }       }     })      // Execute the requests     slides.presentations.batchUpdate({       auth: auth,       presentationId: presentation.id,       resource: {         requests: slideRequests       }     }, (err, res) => {       if (err) {         reject(err);       } else {         resolve(presentation);       }     });   }); }); 

/**  * Opens a presentation in a browser.  * @param {String} presentation The presentation object.  */ module.exports.openSlidesInBrowser = (presentation) => {   console.log('Presentation URL:', presentation.webViewLink);   openurl.open(presentation.webViewLink); }