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simple_server.ino
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simple_server.ino
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//
// A simple server implementation showing how to:
// * serve static messages
// * read GET and POST parameters
// * handle missing pages / 404s
//
#include <Arduino.h>
#ifdef ESP32
#include <WiFi.h>
#include <AsyncTCP.h>
#elif defined(ESP8266)
#include <ESP8266WiFi.h>
#include <ESPAsyncTCP.h>
#endif
#include <ESPAsyncWebServer.h>
AsyncWebServer server(80);
const char* ssid = "YOUR_SSID";
const char* password = "YOUR_PASSWORD";
const char* PARAM_MESSAGE = "message";
void notFound(AsyncWebServerRequest *request) {
request->send(404, "text/plain", "Not found");
}
void setup() {
Serial.begin(115200);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
if (WiFi.waitForConnectResult() != WL_CONNECTED) {
Serial.printf("WiFi Failed!\n");
return;
}
Serial.print("IP Address: ");
Serial.println(WiFi.localIP());
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(200, "text/plain", "Hello, world");
});
// Send a GET request to <IP>/get?message=<message>
server.on("/get", HTTP_GET, [] (AsyncWebServerRequest *request) {
String message;
if (request->hasParam(PARAM_MESSAGE)) {
message = request->getParam(PARAM_MESSAGE)->value();
} else {
message = "No message sent";
}
request->send(200, "text/plain", "Hello, GET: " + message);
});
// Send a POST request to <IP>/post with a form field message set to <message>
server.on("/post", HTTP_POST, [](AsyncWebServerRequest *request){
String message;
if (request->hasParam(PARAM_MESSAGE, true)) {
message = request->getParam(PARAM_MESSAGE, true)->value();
} else {
message = "No message sent";
}
request->send(200, "text/plain", "Hello, POST: " + message);
});
server.onNotFound(notFound);
server.begin();
}
void loop() {
}