# 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.

# [START app]

import logging

import os

from flask import Flask, render_template, request

# [START config]

import mailjet_rest

import requests_toolbelt.adapters.appengine

# Use the App Engine requests adapter to allow the requests library to be

# used on App Engine.

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']

# [END config]

app = Flask(__name__)

# [START send_message]

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()

# [END send_message]

@app.route('/')

def index():

return render_template('index.html')

@app.route('/send/email', methods=['POST'])

def send_email():

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

result = send_message(to)

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

@app.errorhandler(500)

def server_error(e):

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

return """

An internal error occurred: <pre>{}</pre>

See logs for full stacktrace.

""".format(e), 500

# [END app]