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#include <stdio.h>
#include <ESP8266WebServer.h>
#include <ArduinoJson.h>

#define HTTP_REST_PORT 80
#define WIFI_RETRY_DELAY 500
#define MAX_WIFI_INIT_RETRY 50

const char* wifi_ssid = "wifi_ssid_name";
const char* wifi_passwd = "wifi_password";

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/**
    Function To Initialize WiFi
*/
int init_wifi() {
  int retries = 0;
  Serial.println("Connecting to WiFi ...");

  WiFi.mode(WIFI_STA);
  WiFi.begin(wifi_ssid, wifi_passwd);
  // check the status of WiFi connection to be WL_CONNECTED

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/**
    Function Of Rest API - /tempdata
    This function will execute when a HTTP GET is called
*/
void get_temp_data() {
  Serial.println("HTTP GET called");

  // Create JSON object to send data
  StaticJsonBuffer<200> jsonBuffer;
  JsonObject& jsonObj = jsonBuffer.createObject();

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/**
    config REST API function
*/
void config_rest_server_routing() {
  http_rest_server.on("/", HTTP_GET, []() {
    http_rest_server.send(200, "text/html",  "Welcome to REST Web Server");
  });

  // Add your REST APIs & the functions to be run when call those APIs
  // http://192.168.1.7/tempdata

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void setup(void) {
  Serial.begin(115200);
  Serial.println("MCU Program Started...");
  if (init_wifi() == WL_CONNECTED) {
    Serial.println("WIFI Connetted");
    Serial.print(wifi_ssid);
    Serial.print("--- IP: ");
    Serial.println(WiFi.localIP());
  }
  else {

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void loop(void) {
  http_rest_server.handleClient();
}

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// Update these with values suitable for your network.
const char* ssid = "........";
const char* password = "........";
const char* mqtt_server = "192.168.1.6"; // server link

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void setup_wifi() {
  delay(10);
  // We start by connecting to a WiFi network
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {

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void callback(char* topic, byte* payload, unsigned int length) {
  Serial.print("Message arrived [");
  Serial.print(topic);
  Serial.print("] ");
  for (int i = 0; i < length; i++) {
    Serial.print((char)payload[i]);
  }
  Serial.println();

  // Do something with node MCU

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void reconnect() {
  // Loop until we’ re reconnected
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    // Create a random client ID
    String clientId = "ESP8266Client-";
    clientId += String(random(0xffff), HEX);
    // Attempt to connect
    if (client.connect(clientId.c_str())) {
      Serial.println("connected");