Error 400 Bad Request

Projects Programming
2

My guess is that there is something about your request that is bad.

            client.print("GET /insert.php?data="); //php code for database
            client.print(Data); //data
            client.print(" HTTP/1.1");
            client.print("Host: ");
            client.println(server);
            client.println("Connection: close");
            client.println();

Perhaps it should look more like the BasicHttpClient example from the ESP8266 library:

void loop() {
    // wait for WiFi connection
    if((WiFiMulti.run() == WL_CONNECTED)) {


        HTTPClient http;


        USE_SERIAL.print("[HTTP] begin...\n");
        // configure traged server and url
        //http.begin("https://192.168.1.12/test.html", "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); //HTTPS
        http.begin("http://192.168.1.12/test.html"); //HTTP


        USE_SERIAL.print("[HTTP] GET...\n");
        // start connection and send HTTP header
        int httpCode = http.GET();


        // httpCode will be negative on error
        if(httpCode > 0) {
            // HTTP header has been send and Server response header has been handled
            USE_SERIAL.printf("[HTTP] GET... code: %d\n", httpCode);


            // file found at server
            if(httpCode == HTTP_CODE_OK) {
                String payload = http.getString();
                USE_SERIAL.println(payload);
            }
        } else {
            USE_SERIAL.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
        }


        http.end();
    }


    delay(10000);
}