如何将ESP8266设备安全地连接到web前端？

#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <ESP8266HTTPClient.h>

ESP8266WiFiMulti wifiMulti;
HTTPClient http;

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

void setup() {
  Serial.begin(115200);
  wifiMulti.addAP(ssid, password);
  
  while (wifiMulti.run() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  
  Serial.println("Connected to the WiFi network");
}

void loop() {
  if (WiFi.status() == WL_CONNECTED) {
    http.begin("https://yourserver.com/api");
    http.addHeader("Content-Type", "application/json");
    
    String data = "{\"key\":\"value\"}";
    int httpResponseCode = http.POST(data);
    
    if (httpResponseCode > 0) {
      String response = http.getString();
      Serial.println(httpResponseCode);
      Serial.println(response);
    } else {
      Serial.print("Error on sending POST: ");
      Serial.println(httpResponseCode);
    }
    
    http.end();
  } else {
    Serial.println("Error in WiFi connection");
  }
  
  delay(5000);
}