Rfid with nodemcu and post via jyson

The truth is, I have a code that I send information to, but I can't integrate RFID into it.
I can send information with this code below. The line of information I am sending is this char json[] = "{"Rfid_ID":"E54CEB2361","Door_ID":"6"}" here E54CEB2361 part will change as the card reads. With this code, I get 200 response from the link when I send the correct id. If I send a wrong id, I get 400. Likewise, only RFID will read and the value read will go to E54CEB2361 and the code will be sent. Please I need help urgently.

#include <ArduinoJson.h>
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>

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

void setup() {
Serial.begin(115200);

//TESTING JSON CREATION
Serial.println("Starting JSON");
StaticJsonBuffer<69> jsonBuffer;
char json[x] = "{"Rfid_ID":"E54CEB2361","Door_ID":"6"}";
JsonObject& root = jsonBuffer.parseObject(json);
if(!root.success()) {
Serial.println("parseObject() failed");
} else {
Serial.println("JSON OK");
}

WiFi.begin(ssid, password);

while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.print("Connecting... ");
}

//TESTING POST
//headers={'content-type': 'application/json', 'auth-key': 'My_authentication_key'}
String sms_service_URL = "http://project1165.herokuapp.com/authos/getautho";

Serial.println("TESTING POST");
//Declare an object of class HTTPClient
WiFiClient client;
HTTPClient http;

if (WiFi.status() == WL_CONNECTED) {
//Specify request destination
http.begin(client,sms_service_URL);
http.addHeader("Content-Type", "application/json");
http.addHeader("auth-key", "My_authentication_key");

String data;
root.printTo(data);
//Send the request
int httpCode = http.POST(data);

//Check the returning code
if (httpCode > 0) { 
  //Get the request response payload
  String payload = http.getString();
  //Print the response payload
  Serial.println(payload);
}
//Close connection
http.end();
Serial.println(httpCode);

}
}

void loop() {

}

If this is urgent, please take the time to read the posts at the top of the forum about how to properly post your code using code tags. It helps people help you.

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