Function setup

examples/Asio/ClientValidation/ClientValidationReal.h:203–267

}

void setup() {
    Serial.begin(115200);
    Serial.println("\nHTTP Client Validation Suite (Loopback Mode)");
    Serial.println("Starting self-contained server + client test\n");

    FastLED.addLeds<WS2812, DATA_PIN, GRB>(leds, NUM_LEDS);
    FastLED.setBrightness(64);

    // Register HTTP server routes that mimic httpbin.org

    // ROUTE 1: GET /json - Sample JSON slideshow data
    server.get("/json", [](const fl::http_request& req) {
        // Return JSON as raw string with proper Content-Type header
        const char* json_response = R"({
  "slideshow": {
    "author": "FastLED Community",
    "title": "FastLED Tutorial",
    "slides": [
      {"title": "Introduction to FastLED", "type": "tutorial"},
      {"title": "LED Basics", "type": "lesson"},
      {"title": "HTTP Fetch API", "type": "demo"}
    ]
  }
})";
        fl::http_response response;
        response.status(200)
                .header("Content-Type", "application/json")
                .body(json_response);
        return response;
    });

    // ROUTE 2: GET /get - Echo request information
    server.get("/get", [](const fl::http_request& req) {
        const char* json_response = R"({
  "origin": "127.0.0.1",
  "url": "http://localhost:8081/get"
})";
        fl::http_response response;
        response.status(200)
                .header("Content-Type", "application/json")
                .body(json_response);
        return response;
    });

    // ROUTE 3: GET /ping - Health check
    server.get("/ping", [](const fl::http_request& req) {
        return fl::http_response::ok("pong\n");
    });

    // Start server (automatically integrates with FastLED async system)
    if (server.start(SERVER_PORT)) {
        Serial.print("Server started on http://localhost:");
        Serial.println(SERVER_PORT);
        state = SERVER_STARTING;
    } else {
        Serial.println("ERROR: Failed to start server");
        Serial.print("Error: ");
        Serial.println(server.last_error().c_str());