Wokwi - Online ESP32, STM32, Arduino Simulator

#include <WiFi.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>
#include <WebServer.h>


const char* ssid = "Wokwi-GUEST";
const char* password = "";

WebServer server(80);
String firstName = "";

void fetchData() {
  HTTPClient http;
  http.begin("https://dummyjson.com/users/1");
  int httpCode = http.GET();

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

    DynamicJsonDocument doc(2048);
    deserializeJson(doc, payload);

    firstName = doc["firstName"].as<String>();
  }
  http.end();
}

void handleRoot() {
  String html = "<html><body><h1>Nama Depan: " + firstName + "</h1></body></html>";
  server.send(200, "text/html", html);
}

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

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

  Serial.println("\nWiFi connected!");
  Serial.println(WiFi.localIP());

  fetchData(); // ambil data API

  server.on("/", handleRoot); // tampilkan di halaman /
  server.begin();
  Serial.println("HTTP server started");
}

void loop() {
  server.handleClient(); // handle request browser
}