Parsing JSON

[Profanegardener]

Hey all,

     I'm having a bit of a drama getting values out of some JSON - so wondering if someone could please help. I've got a dummy web service set up on my PC and running the simulator. My JSON response looks like this:

{"Id":10,"Name":"Leo Messi"}

This returns the first value OK:

 let msg = JSON.parse(evt.data.Id);

but this doesn't return the second:

let msg = JSON.parse(evt.data.Name);

Any thoughts? Is my JSON not good, or am I missing something in the parsing?

Cheers,

Tim

[Gondwana]

I think, perhaps, you are trying to do too much in one go. As I understand it, JSON.parse() converts a JSON-formatted string into a javascript object. Then, you can use normal javascript notation to access that object's contents. Try (untested):

let obj = JSON.parse(evt.data);
let msg = obj.Name;

You could probably do this in one expression, but it may be more efficient and clearer not to.

[Profanegardener]

Hi,

    I think it was my mistake. The object itself was already an object and not a JSON string, so I was able to use:

let msg = evt.data.Message;

Instead of having to parse it first. 

Thanks anyway!

Cheers,

Tim

[Durus]

The JSON.parse returns an object so it should be something like 

let obj = JSON.parse(evt.data.Id);
console.log(`id: ${obj.id}`);
console.log(`name: ${obj.name}`);