Parsing JSON using SparkJson Lib

Troubleshooting
1

Hi,
I am using a HttpClient to get schedule to know when turn on/off a relay. With the HttpClient, I get a JSON from a webserver. The JSON is simple but can be dynamic data. Actually, I have 2 relays with different start times and days enable.

Easily, I can get the value of the “updated” and “relays” “no” using root[“updated”].asString() or root[“relays”][0][“no”].asString()

What I try, is to loop in all “relays”, know if a relay is enabled for a day (from 1 to 7) and loop in the “time” node to know at what time is starting and for how long. Ex: start @09:03 for 10 minutes.

I read a couple of threads and I was able to start the code but my knowledge need help. Someone can help me or give some in to continue ?

I use “SparkJson.h” lib

Here is the JSON

{
  "updated": "2018-05-20 00:08:19",
  "relays": [
    {
      "days": {
        "1": "1",
        "2": "1",
        "3": "1",
        "4": "1",
        "5": "1",
        "6": "1",
        "7": "1"
      },
      "time": {
        "06:05": "1",
        "00:17": "30",
        "09:03": "10"
      },
      "no": "1"
    },
    {
      "days": {
        "1": "0",
        "2": "0",
        "3": "1",
        "4": "0",
        "5": "0",
        "6": "1",
        "7": "0"
      },
      "time": {
        "12:30": "2",
        "00:46": "1",
        "00:17": "30",
        "09:03": "5"
      },
      "no": "2"
    }
  ]
}
2

You could try this

3

Thanks @ScruffR I was able to iterate using your link.