CODEWITHSUNDEEP
google-cloud-platformgoogle-cloud-functions
Jacob
Jacob

Reputation: 91

How to test a Cloud Function in Google Cloud Platform (GCP)?

I have been trying to find the answer to this but am unable to find it anywhere. On the Cloud Functions section in the Google Cloud Platform console there is a section title 'Testing' but I have no idea what one is supposed to put here to test the function, i.e. syntax.

I have attached an image for clarity: I have attached an image for clarity

Any help would be much appreciated.

Upvotes: 7

Views: 16111

Answers (5)

Shyam
Shyam

Reputation: 317

HTTPS Callable functions must be called using the POST method, the Content-Type must be application/json or application/json; charset=utf-8, and the body must contain a field called data for the data to be passed to the method.

Example body:

{
    "data": {
        "aString": "some random string",
        "anInt": 57,
        "aFloat": 1.23
    }
}

If you are calling a function by creating your own http request, you may find it more flexible to use a regular HTTPS function instead.

Click Here for more information

Upvotes: 8

Daniel De León
Daniel De León

Reputation: 13679

Simple Tests for Cloud Pub/Sub:

{"data":"This is data"}

Base64 'Hello World !' message :

{"data":"SGVsbG8gV29ybGQgIQ=="}

Upvotes: 1

questionto42
questionto42

Reputation: 9610

Example with the Cloud Function default Hello_World that is inserted automatically whenever you create a new Cloud Function:

def hello_world(request):
    """Responds to any HTTP request.
    Args:
        request (flask.Request): HTTP request object.
    Returns:
        The response text or any set of values that can be turned into a
        Response object using
        `make_response <http://flask.pocoo.org/docs/1.0/api/#flask.Flask.make_response>`.
    """
    request_json = request.get_json()
    if request.args and 'message' in request.args:
        return request.args.get('message')
    elif request_json and 'message' in request_json:
        return request_json['message']
    else:
        return f'Hello World!'

enter image description here

Must be tested with a json as the input args:

{
    "message": "Hello Sun!"
}

Out in the Testing Tab:

Hello Sun!

enter image description here

In the Testing tab editor: since we give the function the args in form of a json as we would elsewise write them like in python3 -m main.py MY_ARG, and since "message" is a key of that json, it is found by the elif and returns the value of the dictionary key as the message, instead of "Hello World". If we run the script without json args, else: is reached in the code, and output is "Hello World!":

enter image description here

Upvotes: 2

Anvesh
Anvesh

Reputation: 149

There are multiple ways you could test you cloud function.

1) Use a google emulator locally if you want to test your code before deployment. https://cloud.google.com/functions/docs/emulator. This would give you a similar localhost HTTP endpoint that you can send request to for testing your function.

2) Using GUI on deployed function: The triggering event is the json object that the function expects in the request body. For example:

    {
      "key": "value"
    }

Based on your function code dependency for the request it should trigger the function.

Upvotes: 0

Jofre
Jofre

Reputation: 3898

This looks to be the same as gcloud functions call, with the JSON required being the same as the --data provided in the CLI.

You can check the docs for examples using the CLI, and the CLI documentation itself for further details.

Upvotes: 0

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