【メモ】LambdaからgoogleDriveAPIを操作する

{
  "type": "service_account",
  "project_id": "exxxxxxxxxxxxxxxxxxxx",
  "private_key_id": "axxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
  "private_key": "-----BEGIN PRIVATE KEY-----\nxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\n-----END PRIVATE KEY-----\n",
  "client_email": "id-xxx@xxxxxxxxxxxxxxx.iam.gserviceaccount.com",
  "client_id": "xxxxxxxxxxxxxxxxxx",
  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
  "token_uri": "https://oauth2.googleapis.com/token",
  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
  "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/xxxxxxxxxxxxxxxxxxxxx5.iam.gserviceaccount.co

cd desktop
mkdir sample
cd sample
touch index.js
touch privatekey.json
npm init -y

//googleAPIをいじるためのモジュール
npm install googleapis

const{google}=require("googleapis");constprivatekey=require("./privatekey.json");exports.handler=async(event)=>{constres=awaitPromise.resolve().then(function(){returnnewPromise(function(resolve,reject){//JWT auth clientの設定constjwtClient=newgoogle.auth.JWT(privatekey.client_email,null,privatekey.private_key,["https://www.googleapis.com/auth/drive"]);//authenticate requestjwtClient.authorize(function(err,tokens){if(err){reject(err);}else{//認証成功resolve(jwtClient);}});});}).then(function(jwtClient){returnnewPromise(asyncfunction(resolve,reject){constdrive=google.drive({version:"v3",auth:jwtClient});drive.files.list({pageSize:10,fields:"nextPageToken, files(id, name)",},(err,res)=>{if(err)reject(err);constfiles=res.data.files;if(files.length){resolve(files);}else{resolve("No files found.");}});});});console.log(res)};