Steps

1. Run npm install
2. Run npm run start
3. Fill in the values for MY_EMAIL, SOME_OTHER_EMAIL, HELLO_SIGN_API_KEY in the index.js file.
4. Do a POST request to http://localhost:3000/sign in Postman. Use form-data option in Postman. Set key as templates and upload the example.pdf file from the root of this folder.
5. Send request
6. View webhook payload by clicking this link if need be.