Parsing JSON from httpclient on Yun?

Projects Programming
1

I am pretty new to the arduino's still and I am having one heck of a time trying to parse simple (at least it seems simple) json strings
I make an HTTP GET from a local machine and I get back a JSON string.

I am using the following code below, and I retrieve the data, but it is not actually getting parsed into any kind of format (I'm sure im missing a formatting piece I just cant figure out what)

First I have the json.py created on the Yun:
/usr/lib/python2.7/bridge/json.py

#!/usr/bin/python

import sys
import json
sys.path.insert(0, '/usr/lib/python2.7/bridge/')

from bridgeclient import BridgeClient as bridgeclient

client = bridgeclient()
values = client.get('json')

jsonreader = json.JsonReader()
parsed = jsonreader.read(values)
client.put('data', parsed[0]['data'])

And my Arduino sketch:

#include <Bridge.h>
#include <HttpClient.h>
#include <aJSON.h>

HttpClient client;
String response;
char data[40];

void setup() {
  pinMode(13, OUTPUT);
  digitalWrite(13, LOW);
  Bridge.begin();
  Serial.begin(9600);
  while(!Serial);
}

void loop() {
  
  client.get("http://192.168.1.92:8085/telemachus/datalink?a=v.altitude&b=o.ApA");
  delay(250);
  
  response="";
  
  while (client.available()) {
    char c = client.read();
    response += c;
    digitalWrite(13,HIGH);
    //Serial.print(c);
  }
  
  Bridge.put("json", response);
  
  Bridge.get("data", data, 40);
  Serial.print(response);
  Serial.println(data);
  Serial.flush();
  

  
  delay(500);
}

What I get out is still the data, but with the json formatting still
From serial console:

{"a":2664.9375697372,"b":4073.58506513701}

My goal is to break these out and print them on individual lines, such as

Line1: 2664 (a value)
Line2: 4073 (b value)

I plan on adding more, such as boolean or more strings, but I figure if I can get this straightened out I might be able to continue on.

Thanks

2

I am pretty new to the arduino's

Are you new to reading, too? Can you not scroll through the list of forums and see that there is one dedicated to the Yun?

  Serial.print(response);
  Serial.println(data);

Anonymous printing is stupid. Imagine how much more you'd know with:

Serial.print("response: [");
Serial.print(response);
Serial.println("]");
Serial.print("data: [");
Serial.print(data);
Serial.println("]");

Which side of the bridge is operating incorrectly?

  Serial.flush();

Block until all pending output has been sent. Why is this necessary?