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README.md

Simple HTTP Endpoint Example

This example demonstrates how to setup a simple python HTTP GET endpoint. When you fetch the endpoint we've set up here you'll see the time returned for the given request type.

Use Cases

  • Wrapping an existing internal or external endpoint/service

Development

The GCF python runtime has a few requirements when defining your solution, in particular both a requirements.txt and your initial handler living in main.py. More details are listed here:

https://cloud.google.com/functions/docs/concepts/python-runtime

Deploy

In order to deploy the you endpoint simply run

serverless deploy -v

The expected result should be similar to:

Serverless: Uploading artifacts...
Serverless: Artifacts successfully uploaded...
Serverless: Updating deployment...
Serverless: Checking deployment update progress...
..............
Serverless: Done...
Service Information
service: python-simple-http-endpoint
project: <project_name>
stage: dev
region: <region>

Deployed functions
currentTime
  https://<region>-<project_name>.cloudfunctions.net/endpoint

Usage

You can now invoke the Cloud Function directly and even see the resulting log via

serverless invoke --function currentTime

The expected result should be similar to:

Serverless: tudkstajertt {
    "statusCode": 200,
    "body": {
        "message": "Received a POST request at 17:44:58.448696"
    }
}

And to check out the logs directly from sls, you can run the following:

serverless logs --function currentTime
...
Serverless: Displaying the 10 most recent log(s):

2018-11-21T17:44:58.450200631Z: Function execution took 7 ms, finished with status code: 200
2018-11-21T17:44:58.443618562Z: Function execution started
2018-11-21T17:43:40.651063187Z: Function execution took 8 ms, finished with status code: 200
2018-11-21T17:43:40.644123421Z: Function execution started
2018-11-21T17:43:35.688702419Z: Function execution took 25 ms, finished with status code: 200
2018-11-21T17:43:35.664212161Z: Function execution started
2018-11-21T17:40:46.166468516Z: Function execution took 6 ms, finished with status code: 200
2018-11-21T17:40:46.161422666Z: Function execution started
2018-11-21T17:33:27.004019351Z: Function execution took 10 ms, finished with status code: 200
2018-11-21T17:33:26.994600775Z: Function execution started

Finally you can send an HTTP request directly to the endpoint using a tool like curl

curl https://<region>-<project_name>.cloudfunctions.net/endpoint