if http get request response contains specific response

Projects Programming
1

Hi

Is there anyone in here there is able to help me out with this little code problem.

In my code I'm sending this get request:

WiFiClient client;

HTTPClient http;

http.begin(client, "http://"SERVER_IP"/do_value/slot_0/ch_0");
http.addHeader("Authorization", "Basic cm9vdDowMDAwMDAwMA==");
//http.addHeader("Content-Type", "application/json");
Serial.println("[HTTP] GET...\n");
Serial.println("2......");
// start connection and send HTTP header and body

int httpCode = http.GET();

String response = http.getString();

Serial.print("StatusCode: ");
Serial.println(httpCode);
Serial.print("Response: ");
Serial.println(response);

if (response == {"Ch":0,"Md":0,"Val":1,"Stat":0,"PsCtn":0,"PsStop":0,"PsIV":0})
{
digitalWrite(module,HIGH);
}

I want to set module HIGH if the val=1

I hope someone is able to help me out.

Best regards Term

2

in the seriel monitor I get this response:

StatusCode: 200
Response: {"Ch":0,"Md":0,"Val":0,"Stat":0,"PsCtn":0,"PsStop":0,"PsIV":0}

3

and it is the if response that doesn't work

if (response == {"Ch":0,"Md":0,"Val":1,"Stat":0,"PsCtn":0,"PsStop":0,"PsIV":0})

4

You need to compare the result to a String or string constant

5

Hi MarkT

Thanks, I have now created:

String restgetstring = String("{"Ch":0,"Md":0,"Val":1,"Stat":0,"PsCtn":0,"PsStop":0,"PsIV":0}");

but now I get this errorcode: restgetstring was not declared in this scope

how do I solve that?

Best regards
Term

6

I found the problem and it is now working with the full string.
Thanks alot :slight_smile: