Reading data from Home Assistant and displaying them on a ST7735 display

//
// Can ESP32 read data from Home Assistant? Reading "Inverter Active Power" from Home Assistant connected to Huawei SUN2000-5KTL-L1 inverter
//
//  https://youtu.be/p7ZOHrjYuNU
//

#include <Adafruit_GFX.h>
#include <Adafruit_ST7735.h>
#include <SPI.h>
#include <ArduinoJson.h>
#include <WiFi.h>
#include <HTTPClient.h>

const char* ssid = "YOUR WIFI SSID";
const char* password = "YOUR WIFI PASSWORD";
const char* haApiUrl = "http://YOUR HOME ASSISTANT SERVER IP:8123/api/states/XXXXXXXXX_SENSOR_NAME_XXXXXXX";
// EXAMPLE:
// const char* haApiUrl = "http://192.168.0.103:8123/api/states/sensor.power_meter_active_power";

const char* haApiToken = "YOUR HOME ASSISTANT TOKEN";

#define TFT_CS    5
#define TFT_RST   4
#define TFT_DC    2

Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST);

void setup() {
  Serial.begin(115200);
  WiFi.begin(ssid, password);

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

  Serial.println("Connected to WiFi");

  //tft.initR(INITR_GREENTAB);
  //tft.initR(INITR_REDTAB);
  tft.initR(INITR_BLACKTAB);
  tft.setRotation(1);
  tft.fillScreen(ST7735_BLACK);
}

void loop() {
  HTTPClient http;
  http.begin(haApiUrl);
  http.addHeader("Authorization", "Bearer " + String(haApiToken));

  int httpCode = http.GET();

  if (httpCode > 0) {
    String payload = http.getString();

    DynamicJsonDocument doc(1024);
    deserializeJson(doc, payload);

    float currentProduction = doc["state"].as<float>();

    int intProduction = int(currentProduction);
    Serial.print("Current Production: ");

    int lungimeText;
    int16_t x, y;
    uint16_t w, h;

    //tft.setTextColor(ST7735_WHITE);
    if (intProduction >= 0)
       {
          //tft.setTextColor(ST7735_GREEN);
          tft.setTextColor(0x07E0);
       } else {
                 //tft.setTextColor(ST7735_RED);
                 tft.setTextColor(0xF800);
              }
    tft.setTextSize(5);
    tft.getTextBounds(String(intProduction), 0, 0, &x, &y, &w, &h);
    lungimeText = w + (intProduction < 0 ? 6 : 0);
    int inaltimeText = h;
    tft.setCursor(tft.width() - lungimeText, tft.height() - inaltimeText);
    tft.fillScreen(ST7735_BLACK);
    tft.print(intProduction);

    Serial.println(intProduction);
    delay(5000);
  } else {
    Serial.println("Error in HTTP request");
    delay(1000);
  }

  http.end();

}

int numarDigits(int numar)
    {
      int cifre = 1;
      while (numar /= 10)
           {
             cifre++;
           }
  return cifre;
    }