Resumes (#12)

* google download

* Shit works b

* deprecate var

* added stuff

package.json

@@ -15,6 +15,7 @@
     "hydrate": "node ./src/utils/hydrate.js"
   },
   "dependencies": {
+    "axios": "^0.18.0",
     "backpack-core": "^0.8.1",
     "body-parser": "^1.18.3",
     "cors": "^2.8.4",
@@ -29,6 +30,7 @@
     "nodemailer": "^4.7.0",
     "nodemailer-express-handlebars": "^3.0.0",
     "nodemailer-mailgun-transport": "^1.4.0",
+    "url-parse": "^1.4.4",
     "winston": "^3.1.0",
     "winston-daily-rotate-file": "^3.5.1"
   }

src/controllers/cabinet.js

@@ -2,6 +2,8 @@ import Applicant from "../models/applicant";
 
 import httpResponse from "../utils/httpResponses";
 
+import googleService from "../services/google/drive";
+
 const confirmed = async (req, res) => {
   try {
     const confirmed = await Applicant.find({ confirmation: true }).exec();
@@ -42,4 +44,16 @@ const males = async (req, res) => {
   }
 };
 
-export default { confirmed, unconfirmed, females, males };
+const download = async (req, res) => {
+  try {
+    const { id } = req.query;
+
+    const file_path = await googleService.download(id);
+
+    res.download(file_path);
+  } catch (e) {
+    httpResponse.failureResponse(res, e);
+  }
+};
+
+export default { confirmed, unconfirmed, females, males, download };

src/routes/index.js

@@ -59,6 +59,7 @@ apiRouter.get(
   tokenAuthMiddleware.validateToken,
   cabinet.unconfirmed
 );
+apiRouter.get("/cabinet/download", cabinet.download);
 
 /* ------ Prereg signup Route ------ */
 // Deprecating this route, this alert is no longer needed

src/services/google/drive.js

@@ -1,5 +1,9 @@
 import { google } from "googleapis";
 import { Duplex } from "stream";
+import path from "path";
+import fs from "fs";
+import { WriteStream } from "tty";
+import axios from "axios";
 
 const {
   GOOGLE_CLIENT_EMAIL,
@@ -27,6 +31,33 @@ const asyncUpload = (drive, payload) =>
     });
   });
 
+const asyncDownload = fileId =>
+  new Promise((resolve, reject) => {
+    const file_path = path.resolve(`tmp/${fileId}.pdf`);
+    const dest = fs.createWriteStream(file_path);
+
+    const drive = google.drive("v3");
+
+    drive.files.get(
+      { auth, fileId: fileId, alt: "media", mimeType: "application/pdf" },
+      {
+        responseType: "stream"
+      },
+      (err, response) => {
+        if (err) throw err;
+
+        response.data
+          .on("error", err => {
+            throw err;
+          })
+          .on("end", () => {
+            resolve(file_path);
+          })
+          .pipe(dest);
+      }
+    );
+  });
+
 const bufferToStream = buffer => {
   let stream = new Duplex();
   stream.push(buffer);
@@ -54,4 +85,17 @@ const upload = async (file, filename, folder) => {
   }
 };
 
-export default { upload };
+const download = async fileId => {
+  try {
+    await auth.authorize();
+
+    const dest = await asyncDownload(fileId);
+
+    return dest;
+  } catch (e) {
+    console.log(e);
+    throw e;
+  }
+};
+
+export default { upload, download };