<reponame>odedfos/python-docs-samples<gh_stars>1-10
# Copyright 2020 Google, LLC.
#
# 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 run_events_pubsub_server_setup]
import base64
import os

from flask import Flask, request


required_fields = ['Ce-Id', 'Ce-Source', 'Ce-Type', 'Ce-Specversion']

app = Flask(__name__)
# [END run_events_pubsub_server_setup]


# [START run_events_pubsub_handler]
@app.route('/', methods=['POST'])
def index():
    for field in required_fields:
        if field not in request.headers:
            errmsg = f'Bad Request: missing required header {field}'
            print(errmsg)
            return errmsg, 400

    envelope = request.get_json()
    if not envelope:
        msg = 'no Pub/Sub message received'
        print(f'error: {msg}')
        return f'Bad Request: {msg}', 400

    if not isinstance(envelope, dict) or 'message' not in envelope:
        msg = 'invalid Pub/Sub message format'
        print(f'error: {msg}')
        return f'Bad Request: {msg}', 400

    pubsub_message = envelope['message']

    name = 'World'
    if isinstance(pubsub_message, dict) and 'data' in pubsub_message:
        name = base64.b64decode(pubsub_message['data']).decode('utf-8').strip()

    ce_id = request.headers.get('Ce-Id')
    resp = f'Hello, {name}! ID: {ce_id}'
    print(resp)
    return (resp, 200)
# [END run_events_pubsub_handler]


# [START run_events_pubsub_server]
if __name__ == "__main__":
    app.run(debug=True, host='0.0.0.0', port=int(os.environ.get('PORT', 8080)))
# [END run_events_pubsub_server]

# Copyright 2020 Google, LLC.
#
# 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 run_events_pubsub_server_setup]
import base64
import os

from flask import Flask, request


required_fields = ['Ce-Id', 'Ce-Source', 'Ce-Type', 'Ce-Specversion']

app = Flask(__name__)
# [END run_events_pubsub_server_setup]


# [START run_events_pubsub_handler]
@app.route('/', methods=['POST'])
def index():
    for field in required_fields:
        if field not in request.headers:
            errmsg = f'Bad Request: missing required header {field}'
            print(errmsg)
            return errmsg, 400

    envelope = request.get_json()
    if not envelope:
        msg = 'no Pub/Sub message received'
        print(f'error: {msg}')
        return f'Bad Request: {msg}', 400

    if not isinstance(envelope, dict) or 'message' not in envelope:
        msg = 'invalid Pub/Sub message format'
        print(f'error: {msg}')
        return f'Bad Request: {msg}', 400

    pubsub_message = envelope['message']

    name = 'World'
    if isinstance(pubsub_message, dict) and 'data' in pubsub_message:
        name = base64.b64decode(pubsub_message['data']).decode('utf-8').strip()

    ce_id = request.headers.get('Ce-Id')
    resp = f'Hello, {name}! ID: {ce_id}'
    print(resp)
    return (resp, 200)
# [END run_events_pubsub_handler]


# [START run_events_pubsub_server]
if __name__ == "__main__":
    app.run(debug=True, host='0.0.0.0', port=int(os.environ.get('PORT', 8080)))
# [END run_events_pubsub_server]
# Copyright 2020 Google, LLC. # # 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 run_events_pubsub_server_setup] # [END run_events_pubsub_server_setup] # [START run_events_pubsub_handler] # [END run_events_pubsub_handler] # [START run_events_pubsub_server] # [END run_events_pubsub_server]