Can't get local simulated events unmarshalled correctly after following the latest docs

[ferparra]

Hi everyone,

I've been trying to mock a pub/sub event on my local dev according to the docs at https://github.com/GoogleCloudPlatform/functions-framework-nodejs/tree/master/docs#local-testing-of-cloud-events. Nothing special, I'm just trying to manipulate the data object passed as a parameter to the function (which I assume should be unmarshalled, given that I'm starting the server with --signature-type=event).

Function code:
exports.helloPubSub = (data, context) => console.log(data);

Mock Json:

{
  "message": {
    "attributes": {
      "key": "value"
    },
    "data": "SGVsbG8gQ2xvdWQgUHViL1N1YiEgSGVyZSBpcyBteSBtZXNzYWdlIQ==",
    "messageId": "136969346945"
  },
  "subscription": "projects/myproject/subscriptions/mysubscription"
}

Output

{
  '{  "message": {    "attributes": {      "key": "value"    },    "data": "SGVsbG8gQ2xvdWQgUHViL1N1YiEgSGVyZSBpcyBteSBtZXNzYWdlIQ': '=",    "messageId": "136969346945"  },  "subscription": "projects/myproject/subscriptions/mysubscription"}'

All of the above is pretty standard. However, I can't get to parse the resulting object in any meaningful way.

Would you be able to shed some light on this issue?

[grant]

Hi @ferparra,
Can you try this guide and report any errors (if any) that you face?
https://github.com/GoogleCloudPlatform/functions-framework-nodejs/blob/master/docs/events.md

[ferparra]

Hi @grant. The example of the above is based on following that exact guide you just shared.

There are no errors. Just either undefined, when trying to console.log any of the keys, or the object type described as the output, which appears to split the data string value by =.

[ericnorris]

I added -H "Content-Type: application/json" to the curl invocation and that seemed to cause data to be properly decoded:

{ message:
   { attributes: { key: 'value' },
     data: 'SGVsbG8gQ2xvdWQgUHViL1N1YiEgSGVyZSBpcyBteSBtZXNzYWdlIQ==',
     messageId: '136969346945' },
  subscription: 'projects/myproject/subscriptions/mysubscription' }

[grant]

As @ericnorris stated (thanks!), you need to provide the application/json content type header to the request to properly send the request.

I've updated the guide to make the testing instructions clear.