JSONDecodeError on Python Pub/Sub Script

Question

Here is my Full Code. This script is triggered by a pub/sub in cloud functions, and parses out the message from the pub/sub by key, and value. for testing I have a sample string as the message in the code.

import base64
import os
import json
#import subprocess
#import shlex

    def hello_pubsub(event, context):
        """Triggered from a message on a Cloud Pub/Sub topic.
        Args:
             event (dict): Event payload.
             context (google.cloud.functions.Context): Metadata for the event.
        """
        pubsub_message ='{"name": instance1, "zone": us-west1-c, "project": projectname}'
        pubsub_json = json.loads(pubsub_message)
        for key,value in pubsub_json.items():
              print (key,value)



    hello_pubsub('event', 'context')

However, when I run this, I get this error

raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 10 (char 9)

Using debugger in VSCode, the error gets trigger by the json.loads line.

I have tried using different versions of json.loads and Im not sure why I get this error, when I use json.dumps I get a sting/integers error. Any Ideas?

Your JSON is not properly quoted.

Klaus D.
– Klaus D.

2019-10-31 20:44:58 +00:00
Commented Oct 31, 2019 at 20:44 — Klaus D.
– Klaus D., Commented Oct 31, 2019 at 20:44

Daniel Roseman · Accepted Answer · 2019-10-31 20:46:51Z

2

This is indeed not valid JSON. The strings need to be quoted:

pubsub_message ='{"name": "instance1", "zone": "us-west1-c", "project": "projectname"}'

I can't really understand what this is trying to test though.

answered Oct 31, 2019 at 20:46

Daniel Roseman

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2 Comments

Zavalagrah Over a year ago

I need to parse out name, zone, and project into 3 separate variables, so this is a test to see wether it can be parsed.

Zavalagrah Over a year ago

Also this answer worked. Thank you! sorry if it was a stupid question as I am new

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