Need Help for GPS Shield Arduino UNO and ESP8266 Module

Hello,

I'm looking for some help to solve my problem, I would like sending GPS Data over ESP8266 Module to Dweet.io

The ESP with Arduino Code :

#include <ESP8266WiFi.h>
#include <SoftwareSerial.h>
#include <SPI.h>
#include <TinyGPS.h>

static const int RXPin = 2, TXPin = 3;

TinyGPS gps;

SoftwareSerial ss(RXPin, TXPin);

const char* ssid     = "MyNET";
const char* password = "TCRT877441";

const char* host = "dweet.io";

  bool newData = false;
  unsigned long chars;
  unsigned short sentences, failed;

float flat, flon;
void setup() {
  ss.begin(9600);
  Serial.begin(9600);
  delay(10);

  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

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

void loop() {

  Serial.print("connecting to ");
  Serial.println(host);

  WiFiClient client;
  const int httpPort = 80;
  if (!client.connect(host, httpPort)) {
    Serial.println("connection failed");
    return;
  }


  String url = "/dweet/for/RPI";
  url += "?Lat=";
  url += String(flat, 6);
  url += "&Long=";
  url += String(flon, 6);

  Serial.print("Requesting URL: ");
  Serial.println(url);

  client.print(String("GET ") + url + " HTTP/1.1\r\n" +
               "Host: " + host + "\r\n" +
               "Connection: close\r\n\r\n");
      
  unsigned long timeout = millis();
  while (client.available() == 0) {
    if (millis() - timeout > 5000) {
      Serial.println(">>> Client Timeout !");
      client.stop();
      return;
    }
  }

  while (client.available()) {
    String line = client.readStringUntil('\r');
    Serial.print(line);
  }

  Serial.println();
  Serial.println("closing connection");
  
  delay(5000);
}

And the GPS Call

  for (unsigned long start = millis(); millis() - start < 1000;)
  {
    
    while (ss.available())
    { 
      if (gps.encode(ss.read())) 
       {
          gps.f_get_position(&flat, &flon);
          Serial.print("LAT=");
          Serial.println(flat,6);
          Serial.print("LON=");
          Serial.println(flon,6);

       }
    }
   }

How I can integrate correctly the GPS Call with the principal code because all the time it return 0 and there's something wrong I don't found it to make the good call for Lat and Long,

Thanks for helping