Send Email Template from GMail via Nodejs

Blog Link: http://blog.kashishgupta.in/2017/07/19/send-dynamic-email-template-using-nodejs/

Install dependency

• npm install

How to get secret key ?

• Open link https://console.developers.google.com/flows/enableapi?apiid=gmail
• Use this wizard to create or select a project in the Google Developers Console and automatically turn on the API.
• Click Continue, then Go to credentials.
• At the top of the page, select the OAuth consent screen tab. Select an Email address, enter a Product name if not already set, and click the Save button.
• Select the Credentials tab, click the Create credentials button and select OAuth client ID.
• Select the application type Other, enter the any name "gmail-node-app", and click the Create button.
• Click OK to dismiss the resulting dialog.
• Click the file_download (Download JSON) button to the right of the client ID.
• Move this file to config directory in your working directory and use it with any name like clientSecret.json.

How to generate token ?

• node generateUrl.js - Execute the command, It will show you URL. Copy that url and pasts on your browser after that it will ask for GMail password and return one key like 4/hfWgzJAjK9t15ekSnPdiKGMtmKxwgOwlVUT4k-bM3FE
• Replace that key present in file generateToken.js with new key which looks like 4/hfWgzJAjK9t15ekSnPdiKGMtmKxwgOwlVUT4k-bM3FE
• node generateToken.js - Execute the command. If everything goes well you will see the token.json file in config folder.

Execute the application

• Update emailObject and userData present in app.js file.
• Update the template present in templates/welcome.html.hbs file.
• node app.js - Execute to see the result.