This sample demonstrates how to use [Mailjet](https://www.mailgun.com) on [Google App Engine Standard](https://cloud.google.com/appengine/docs/).

Before you can run or deploy the sample, you will need to do the following:

1. [Create a Mailjet Account](http://www.mailjet.com/google).

2. Configure your Mailjet settings in the environment variables section in ``app.yaml``.

runtime: python27

threadsafe: yes

api_version: 1

handlers:

- url: .*

script: main.app

env_variables:

MAILJET_API_KEY: your-mailjet-api-key

MAILJET_API_SECRET: your-mailjet-api-secret

MAILJET_SENDER: your-mailjet-sender-address

from google.appengine.ext import vendor

vendor.add('lib')

import logging

import os

from flask import Flask, render_template, request

import mailjet_rest

import requests_toolbelt.adapters.appengine

requests_toolbelt.adapters.appengine.monkeypatch()

MAILJET_API_KEY = os.environ['MAILJET_API_KEY']

MAILJET_API_SECRET = os.environ['MAILJET_API_SECRET']

MAILJET_SENDER = os.environ['MAILJET_SENDER']

app = Flask(__name__)

def send_message(to):

client = mailjet_rest.Client(

auth=(MAILJET_API_KEY, MAILJET_API_SECRET))

data = {

'FromEmail': MAILJET_SENDER,

'FromName': 'App Engine Flex Mailjet Sample',

'Subject': 'Example email.',

'Text-part': 'This is an example email.',

'Html-part': 'This is an <i>example</i> email.',

'Recipients': [{'Email': to}]

}

result = client.send.create(data=data)

return result.json()

def index():

return render_template('index.html')

def send_email():

to = request.form.get('to')

result = send_message(to)

return 'Email sent, response: <pre>{}</pre>'.format(result)

def server_error(e):

logging.exception('An error ocurred during a request.')

return """

""".format(e), 500

import re

import pytest

import responses

def app(monkeypatch):

monkeypatch.setenv('MAILJET_API_KEY', 'apikey')

monkeypatch.setenv('MAILJET_API_SECRET', 'apisecret')

monkeypatch.setenv('MAILJET_SENDER', 'sender')

import main

main.app.testing = True

return main.app.test_client()

def test_index(app):

r = app.get('/')

assert r.status_code == 200

def test_send_email(app):

responses.add(

responses.POST,

re.compile(r'.*'),

body='{"test": "message"}',

content_type='application/json')

r = app.post('/send/email', data={'to': 'user@example.com'})

assert r.status_code == 200

assert 'test' in r.data.decode('utf-8')

assert len(responses.calls) == 1

request_body = responses.calls[0].request.body

assert 'user@example.com' in request_body

{#

# Copyright 2016 Google Inc. All Rights Reserved.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#}

<title>Mailjet on Google App Engine</title>

<form method="post" action="/send/email">

<input type="text" name="to" placeholder="Enter recipient email">

<input type="submit" name="submit" value="Send email">

This sample demonstrates how to use [Mailjet](https://www.mailgun.com) on [Google App Engine Flexible](https://cloud.google.com/appengine/docs/flexible/).

Before you can run or deploy the sample, you will need to do the following:

1. [Create a Mailjet Account](http://www.mailjet.com/google).

2. Configure your Mailjet settings in the environment variables section in ``app.yaml``.

Refer to the [top-level README](../README.md) for instructions on running and deploying.

You can run the application locally and send emails from your local machine. You

will need to set environment variables before starting your application:

$ export MAILGUN_API_KEY=[your-mailgun-api-key]

$ export MAILGUN_API_SECRET=[your-mailgun-secret]

$ export MAILGUN_SENDER=[your-sender-address]

$ python main.py

runtime: python

vm: true

entrypoint: gunicorn -b :$PORT main:app

runtime_config:

python_version: 3

env_variables:

MAILJET_API_KEY: your-mailjet-api-key

MAILJET_API_SECRET: your-mailjet-api-secret

MAILJET_SENDER: your-mailjet-sender-address

import logging

import os

from flask import Flask, render_template, request

import mailjet_rest

MAILJET_API_KEY = os.environ['MAILJET_API_KEY']

MAILJET_API_SECRET = os.environ['MAILJET_API_SECRET']

MAILJET_SENDER = os.environ['MAILJET_SENDER']

app = Flask(__name__)

def send_message(to):

client = mailjet_rest.Client(

auth=(MAILJET_API_KEY, MAILJET_API_SECRET))

data = {

'FromEmail': MAILJET_SENDER,

'FromName': 'App Engine Flex Mailjet Sample',

'Subject': 'Example email.',

'Text-part': 'This is an example email.',

'Html-part': 'This is an <i>example</i> email.',

'Recipients': [{'Email': to}]

}

result = client.send.create(data=data)

return result.json()

def index():

return render_template('index.html')

def send_email():

to = request.form.get('to')

result = send_message(to)

return 'Email sent, response: <pre>{}</pre>'.format(result)

def server_error(e):

logging.exception('An error ocurred during a request.')

return """

""".format(e), 500

if __name__ == '__main__':

# This is used when running locally. Gunicorn is used to run the

# application on Google App Engine. See entrypoint in app.yaml.

app.run(host='127.0.0.1', port=8080, debug=True)

import re

import pytest

import responses

def app(monkeypatch):

monkeypatch.setenv('MAILJET_API_KEY', 'apikey')

monkeypatch.setenv('MAILJET_API_SECRET', 'apisecret')

monkeypatch.setenv('MAILJET_SENDER', 'sender')

import main

main.app.testing = True

return main.app.test_client()

def test_index(app):

r = app.get('/')

assert r.status_code == 200

def test_send_email(app):

responses.add(

responses.POST,

re.compile(r'.*'),

body='{"test": "message"}',

content_type='application/json')

r = app.post('/send/email', data={'to': 'user@example.com'})

assert r.status_code == 200

assert 'test' in r.data.decode('utf-8')

assert len(responses.calls) == 1

request_body = responses.calls[0].request.body

assert 'user@example.com' in request_body

requests[security]==2.9.1