Issue With Getting A Json Object To Work In Nodejs

I am trying to get a JSON object and so to make sure I had it I wrote the code like this: var payload = JSON.parse( JSON.stringify(Buffer.from(pubsubMessage.data, 'base64').toStrin

Solution 1:

The issue was sort of confusing. Hardcoded in the code the 2 below versions would give me the same result and work fine.

payload= { timestamp: "1533564208", device_id: "2nd_test", temperature: "20.0" } 

and

payload='{"timestamp":"1533564208","device_id":"2nd_test","temperature":"20.0"}'

But when using the PubSub Gcloud and the Buffer function, I had to make sure to pass in

payload='{"timestamp":"1533564208","device_id":"2nd_test","temperature":"20.0"}' 

and not

payload= { timestamp: "1533564208", device_id: "2nd_test", temperature: "20.0" } 

otherwise it would not consider it as valid JSON.

Solution 2:

This happened because you "stringified" twice your data, with .toString() and with JSON.stringify

// since I dont have your data, I will use this as examplevar example = { a : 'a', b : 'b' };
var payload = JSON.parse(JSON.stringify(example.toString()));

// will log [object Object]console.log(payload);
// will log stringconsole.log(typeof payload);

So, when you desserialize using JSON.parse, it still remains as string. You only need to serialize once:

var example = { a : 'a', b : 'b' };
var payload = JSON.parse(JSON.stringify(example));

// will log the object correctlyconsole.log(payload);
// will log objectconsole.log(typeof payload);

Solution 3:

Why do you do this ?

var payload2 = JSON.parse(
  Buffer.from(pubsubMessage.data, 'base64').toString()
);

You could just print the result of Buffer.from(pubsubMessage.data, 'base64').toString()