Send HTTP Request Fails ?

Hi All
Please I need Help
I try to send HTTP Request but it fails
HTTP Code returns -1
Although the URL worked successfully on Postman and the Wifi successfully connected

Here is my code

#include <OneWire.h>
#include <DallasTemperature.h>
#include <ESP8266WiFi.h>
#include <WiFiManager.h>
#include <ESP8266HTTPClient.h>
#include <Wire.h>

IPAddress staticIP750_100(192,168,1,16);
IPAddress gateway750_100(192,168,1,1);
IPAddress subnet750_100(255,255,255,0);

HTTPClient http;

#define ONE_WIRE_BUS 2 // DS18B20 on NodeMCU pin D4

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature DS18B20(&oneWire);

float temp_0;
const char* host = "http://mysite2020.info";

void setup()
{

Serial.begin(115200);
WiFiManager wifimanger ;

DS18B20.begin();

Wire.begin(D2, D1)

readTemp();

WiFi.mode(WIFI_STA);

wifimanger.autoConnect("Inlet Device","12345");

while ((!(WiFi.status() == WL_CONNECTED))){
delay(300);
Serial.println("...");

}

Serial.println("WiFi connected");

WiFi.config(staticIP750_100, gateway750_100, subnet750_100);
WiFi.hostname("Inlet Device") ;

delay(3000);
Serial.println("Welcome To Device No : 1");

Serial.println("IP address: ");
Serial.println(WiFi.localIP());

Serial.println("Your Gateway is : ");

Serial.println((WiFi.gatewayIP().toString().c_str()));

Serial.println("Your Hostname is : ");

Serial.println((WiFi.hostname()));

delay(3000);

Serial.println("Welcome to my Project!");

delay(3000);

}
void loop() {

Serial.println(host); // Use WiFiClient class to create TCP connections
WiFiClient client;
const int httpPort = 80;
if (!client.connect(host, httpPort))
{
Serial.println("connection failed");
return;
}
Serial.print("Requesting URL: ");

sendtemp ();
}

void sendtemp ()
{

temp_0=23.26;
String url = "http://mysite2020.info/Api/insert_mssqlserver.php?Reading=" + String(temp_0);

Serial.println(url);
http.begin(url);
http.addHeader("Content-Type", "application/x-www-form-urlencoded");
auto httpCode = http.GET();
Serial.println(httpCode); //Print HTTP return code
String payload = http.getString();
Serial.println(payload); //Print request response payload
http.end(); //Close connection Serial.println();
Serial.println("closing connection");

delay(500);

}

The hostname mysite2020.info doesn't exist, so the device cannot connect to it.

any help ??

Eng_Ranya:
any help ??

see reply #1

KASSIMSAMJI:
see reply #1

it is an example , but my host worked successfully on POSTMAN

????

it is an example , but my host worked successfully on POSTMAN

You post a non-working example and we should know what else you did wrong?

Something in your code isn't identical to the test you did in your POSTMAN. As we have no clue about either request (the code is different and we have never seen your POSTMAN data) it's up to you to find the error as we are not able to do it.

One hint: A GET request usually doesn't have a Content-type header as there is no content.

BTW: you should edit your post and replace the quote tags by code tags.