Parsing Json Data structure

Using Arduino Programming Questions
#1

Hey all oi want to parse this json datas but i can’t because of the structure , so i tried this :

...
 if (httpCode == HTTP_CODE_OK || httpCode == HTTP_CODE_MOVED_PERMANENTLY) {
          String payload = https.getString();
          Serial.println(payload);


          StaticJsonBuffer<300> jsonBuffer;
      
        JsonObject& root = jsonBuffer.parseObject(payload);
      const char* code = root["code"];
  
  const char* id = root["datas"][0];
  const char* days = root["datas"][1];
   const char* temp = root["datas"][2];
    const char* hum = root["datas"][3];

  Serial.println(code);
  Serial.println(id);
  Serial.println(days);
  Serial.println(temp);
  Serial.println(hum);

and when i print it :

1

Thank you all !

#2

Do you really feel you provided all the information to help us help you?

Assuming you enter the if - your first print is the payload si it feels it’s not a JSON format...

But that’s just a wild guess - my cristal ball is not working today

#3

Sorry i forgot to past the json , yes the payload contains a json .

so this is the json data :

{
"success": true,
"code": "1",
"datas": [
{
"id": 1,
"days": 14,
"temp": 20,
"hum": 80
}
]
}

#4

Update :

I found this example :

          DynamicJsonBuffer jsonBuffer;
      
        JsonObject& root = jsonBuffer.parseObject(payload);

        JsonArray& datas = root["datas"];
        
      const char* code = root["code"];

  for (auto& datas : datas) {
   float id = datas["id"];
   float days = datas["days"];
   float temp = datas["temp"];
   float hum = datas["hum"];
   
        }

and :

error: use of 'datas' before deduction of 'auto'

for (auto& datas : datas) {

^

exit status 1
use of 'datas' before deduction of 'auto'

#5

This website generates ArduinoJson code based on the JSON string you provide.

#6

Thank you gbafamily !

#7