An e-mail sending API for static sites using SendGrid and Python on Heroku. It now requires setting a safety token inorder to avoid unauthorised usage and spam messages.

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Step 1: Install the heroku CLI: installation instructions

Step 2: Create a heroku account and login in using the following command:

$ heroku login
heroku: Enter your login credentials
Email: xzy@abc.com
Password: ********

Step 3: Clone this repo

git clone https://github.com/sdabhi23/SendGrid-Mailer.git
cd SendGrid-Mailer

Step 4: Create a new heroku app

$ heroku create
Creating app... done, ⬢ morning-depths-68125
https://morning-depths-68125.herokuapp.com/ | https://git.heroku.com/morning-depths-68125.git

• Get a free account from https://signup.sendgrid.com/

• Setup an API key (Instructions)

• Add the API key as a config var to your app using the following command:

$ heroku config:set SENDGRID_KEY=<your api key>
Adding config vars and restarting myapp... done
SENDGRID_KEY: <your api key>

• Add your email address as a config var to your app using the following command:

$ heroku config:set EMAIL=<your email id>
Adding config vars and restarting myapp... done
EMAIL: <your email id>

• Add your website’s url as a config var to your app using the following command:

$ heroku config:set ALLOWED_ORIGINS=<your website url>
Adding config vars and restarting myapp... done
ALLOWED_ORIGINS: <your website url>

• Add your safety token as a config var to your app using the following command:

$ heroku config:set ORIGIN_TOKEN=<your safety token>
Adding config vars and restarting myapp... done
ORIGIN_TOKEN: <your safety token>

Alternatively you can use any other method described at https://devcenter.heroku.com/articles/config-vars#managing-config-vars for setting up config variables

• Push all the changes to your app using $ git push heroku master and your API will be up and running at /contact in a matter of minutes!

• Using fetch in JavaScript

var url = 'https://<app name>.herokuapp.com/contact';
// For example: https://morning-depths-68125.herokuapp.com/
var formData = new FormData();
formData.append("name", "Tester");
formData.append("email", "tester@sdabhi23.io");
formData.append("subject", "Testing");
formData.append("message", "This is a test mail");

fetch(url, {
      method: "POST",
      body: formData,
      headers: {
        'x-origin-token': process.env.REACT_APP_ORIGIN_TOKEN
      }
    })
      .then((res) => {
        if (res.ok) {
          return res.json();
        } else {
          throw new Error("Something went wrong");
        }
      })
      .catch(error => console.error('Error:', error))
      .then(response => console.log('Success:', response));

MIT License

Copyright (c) 2018 Shrey Dabhi

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the “Software”), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.