Sending multiple POST requests from an ESP8266

[vicob]

Hi everyone !
My project is to turn screens and lights on according to the RFID detection of a specific card.
Even though the POC works I have issues sending multiple POST requests. For the record, I'm only using an ESP8266. On the code you can see I'm trying to send 3 POST requests but every time I run the code, it focuses only on the first one. Thus, only one light turns on even if I put delays between each. Moreover, if I print the response of the 2nd and 3rd requests, the serial monitor shows that both requests have been sent but for some reason none of those last two requests are being treated. If anyone knows why and how to workaround the problem so that every lights turn on at the same time ?
Thank You !!! =)

Code Below

#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <WiFiClient.h>
#include <SPI.h>
#include <MFRC522.h>

#define SS_PIN D8
#define RST_PIN D0

int ledPinV = 5;
int ledPinR = 4;

byte CodeVerif=0; 
byte Code_Acces[4]={0x**, 0x**, 0x**, 0x**}; 

MFRC522 rfid(SS_PIN, RST_PIN); // Instance of the class

// Init array that will store new NUID 
byte nuidPICC[4];

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

const char* serverName = "http://192.168.0.15:7012/light";

unsigned long lastTime = 0;

void setup() {
  
  // Init RS232
  Serial.begin(115200);
  
  // Init SPI bus
  SPI.begin(); 

  // Init MFRC522 
  rfid.PCD_Init(); 

  // Init Led
  pinMode(ledPinV, OUTPUT);
  pinMode(ledPinR, OUTPUT);
  
  WiFi.begin(ssid, password);
  Serial.println("Connecting");
  
  while(WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  
  Serial.println("");
  Serial.print("Connected to WiFi network with IP Address: ");
  Serial.println(WiFi.localIP());
  Serial.println("Timer set to 5 seconds (timerDelay variable), it will take 5 seconds before publishing the first reading.");
}

void loop() {
  
  // Initializing the loop if no key is to be found
  if ( !rfid.PICC_IsNewCardPresent()){
    digitalWrite(ledPinR, LOW);
    digitalWrite(ledPinV, LOW);
    //Serial.print("0");
    delay(100);
    if(WiFi.status()== WL_CONNECTED){
        WiFiClient client;
        HTTPClient http;
        
    // Your Domain name with URL path or IP address with path
        http.begin(client, serverName);

    // Specify content-type header
        http.addHeader("Content-Type", "application/json");

    // Data to send with HTTP POST - Lights off
        String httpRequestDataLum1 = ("{\"nomLum\":\"imb\",\"intensite\":\"0\"}");
        String httpRequestDataLum2 = ("{\"nomLum\":\"scabine\",\"intensite\":\"0\"}");
        String httpRequestDataLum3 = ("{\"nomLum\":\"simb\",\"intensite\":\"0\"}");

    // Send HTTP POST request
        int httpResponseCodeLum1 = http.POST(httpRequestDataLum1);
        int httpResponseCodeLum2 = http.POST(httpRequestDataLum2);
        int httpResponseCodeLum3 = http.POST(httpRequestDataLum3);

        // Free resources
        http.end();
      }
      else {
        Serial.println("WiFi Disconnected");
      }
      lastTime = millis();
  }
  else{
  // Verifying the presence of a key 
    if ( !rfid.PICC_ReadCardSerial())
      return;
  // Registering the ID of the key (4 octets) 
    for (byte i = 0; i < 4; i++){
      nuidPICC[i] = rfid.uid.uidByte[i];
    }
    delay(100);
  // Key verification 
    CodeVerif= GetAccesState(Code_Acces,nuidPICC); 
    if (CodeVerif!=1){
      digitalWrite(ledPinR, HIGH);
      digitalWrite(ledPinV, LOW);
      //Serial.print("0");
      //Check WiFi connection status
      if(WiFi.status()== WL_CONNECTED){
        WiFiClient client;
        HTTPClient http;
        
    // Your Domain name with URL path or IP address with path
        http.begin(client, serverName);
  
    // Specify content-type header
        http.addHeader("Content-Type", "application/json");

    // Data to send with HTTP POST  - Lights off still 
        String httpRequestDataLum1 = ("{\"nomLum\":\"imb\",\"intensite\":\"0\"}");
        String httpRequestDataLum2 = ("{\"nomLum\":\"scabine\",\"intensite\":\"0\"}");
        String httpRequestDataLum3 = ("{\"nomLum\":\"simb\",\"intensite\":\"0\"}");

    // Send HTTP POST request
        int httpResponseCodeLum1 = http.POST(httpRequestDataLum1);
        int httpResponseCodeLum2 = http.POST(httpRequestDataLum2);
        int httpResponseCodeLum3 = http.POST(httpRequestDataLum3);
          
        // Free resources
        http.end();
      }
      else {
        Serial.println("WiFi Disconnected");
      }
      lastTime = millis();
    }
    else{
      digitalWrite(ledPinR, LOW);
      digitalWrite(ledPinV, HIGH);
      //Serial.print("1");
      //Check WiFi connection status
      if(WiFi.status()== WL_CONNECTED){
        WiFiClient client;
        HTTPClient http;

    // Your Domain name with URL path or IP address with path
        http.begin(client, serverName);
  
    // Specify content-type header
        http.addHeader("Content-Type", "application/json");

    // Data to send with HTTP POST  - Lights on
        String httpRequestDataLum1 = ("{\"nomLum\":\"imb\",\"intensite\":\"30\"}");
        String httpRequestDataLum2 = ("{\"nomLum\":\"entree1\",\"intensite\":\"10\"}");
        String httpRequestDataLum3 = ("{\"nomLum\":\"simb\",\"intensite\":\"10\"}");

    // Send HTTP POST request
        int httpResponseCodeLum1 = http.POST(httpRequestDataLum1);
        delay(1000);
        int httpResponseCodeLum2 = http.POST(httpRequestDataLum2);
        delay(1000);
        int httpResponseCodeLum3 = http.POST(httpRequestDataLum3);
        delay(1000);

    // Free resources
        http.end();
      }
      else {
        Serial.println("WiFi Disconnected");
      }
      lastTime = millis();
    }
  }
  // Verifying the presence of a new key 
    if ( !rfid.PICC_ReadCardSerial())
      return;
}

byte GetAccesState(byte *CodeAcces,byte *NewCode) 
{
  byte StateAcces=0; 
  if ((CodeAcces[0]==NewCode[0])&&(CodeAcces[1]==NewCode[1])&&
  (CodeAcces[2]==NewCode[2])&& (CodeAcces[3]==NewCode[3]))
    return StateAcces=1; 
  else
    return StateAcces=0; 

  Serial.print(StateAcces);
}