Tech-ecke - Arduino Code

#include <Updater.h>

String html = R"***(
<!DOCTYPE html>
<html>
<body><h1>ESP8266 OTA</h1>
<form method='POST' action='/update' enctype='multipart/form-data'>
<input type='file' name='firmware'><input type='submit' value='Update'>
</form>
</body>
</html>
)***";

void OTAUpload() {
HTTPUpload& upload = webServer.upload();
if (upload.status == UPLOAD_FILE_START) {
    size_t maxSpace = ESP.getFreeSketchSpace() & 0xFFFFF000;
    Update.begin(maxSpace);
} else if (upload.status == UPLOAD_FILE_WRITE) {
    Update.write(upload.buf, upload.currentSize);
} else if (
    upload.status == UPLOAD_FILE_END) { Update.end(true);
}
}

void OTAUpdate() {
if (Update.hasError()) {
    webServer.send(200, "text/plain", "Update FAILED");
} else {
    webServer.send(200, "text/plain", "Update OK, rebooting...");
}
delay(500);
ESP.restart();
}

...

// irgendwo im void setup()
webServer.on("/ota", HTTP_GET, []() { webServer.send(200, "text/html", html); });
webServer.on("/update", HTTP_POST, OTAUpdate, OTAUpload); // Upload starten