Rp2040 and thingspeak api

[nleehing]

Good day ,

Can anyone tell me how to write the following thingspeak write api html for a RP 2040 connect.

GET https://api.thingspeak.com/update?api_key=########&field1=0

[nleehing]

so far i have this
String url="api_key=";
url += writeapiKey;
url += "&field1=";
url += float(value1);
client.println("POST /data HTTP/1.1");

client.println("Host: " + String(server));

client.println("Content-type: text/html");

client.println("Content-Length: " + String(url.length()));

client.println("Connect: close");

client.println();

client.println(url);