starred/WiFiManager

Fork 0

mirror of https://github.com/tzapu/WiFiManager.git synced 2026-04-27 00:55:52 +03:00

[GH-ISSUE #582] webserver availability once esp8266 joined the wifinetwork #485

New issue

Closed

opened 2026-02-28 01:25:31 +03:00 by kerem · 3 comments

kerem commented

2026-02-28 01:25:31 +03:00

Owner

Originally created by @sorriso93 on GitHub (Apr 5, 2018).
Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/582

Hello
an example how to use the web server after the WIFiManager configuration to add a simple on/off switch relay?

Just as example, I tried to call server.begin and this code after configuration but the webserver on the ESP8266 doesn't replay to request. Without WifiManager the code is ok and the webserver replay to requests. Where should I put this loop code?

WiFiClient client = server.available();
if (!client) {
return;
}

// Wait until the client sends some data
Serial.println("new client");
while(!client.available()){
delay(1);
}

// Read the first line of the request
String request = client.readStringUntil('\r');
Serial.println(request);
client.flush();

//Match the request, checking to see what the currect state is
int value = LOW;
//if (request.indexOf("/relay=ON") != -1) {
if (request.indexOf("/on") != -1) {
digitalWrite(relayPin, HIGH);
value = HIGH;
}
//if (request.indexOf("/relay=OFF") != -1){
if (request.indexOf("/off") != -1){
digitalWrite(relayPin, LOW);
value = LOW;
}
// Return the response, build the html page
//
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println(""); // do not forget this one
client.println("");
client.println("<html>");

client.print("Relay is now: ");

if(value == HIGH) {
client.print("Engaged (ON)");
} else {
client.print("Disengaged (OFF)");
}
client.println("

");
client.println("<a href="/on">Click here to engage (Turn ON) the relay.

");
client.println("<a href="/off">Click here to disengage (Turn OFF) the relay.
");
client.println("</html>");

delay(1);
Serial.println("Client disconnected");
Serial.println("");

----------------------------- Remove above -----------------------------

Basic Infos

Hardware

WiFimanager Branch/Release: Development

Esp8266/Esp32: WEMOS D1

Hardware: WEMOS D1

Core Version: 2.4.0, staging

Description

Problem description

Settings in IDE

Module: NodeMcu, Wemos D1

Additional libraries:

Sketch


#include <Arduino.h>

void setup() {

}

void loop() {

}

Debug Messages

messages here

Originally created by @sorriso93 on GitHub (Apr 5, 2018). Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/582 Hello an example how to use the web server after the WIFiManager configuration to add a simple on/off switch relay? Just as example, I tried to call server.begin and this code after configuration but the webserver on the ESP8266 doesn't replay to request. Without WifiManager the code is ok and the webserver replay to requests. Where should I put this loop code? WiFiClient client = server.available(); if (!client) { return; } // Wait until the client sends some data Serial.println("new client"); while(!client.available()){ delay(1); } // Read the first line of the request String request = client.readStringUntil('\r'); Serial.println(request); client.flush(); //Match the request, checking to see what the currect state is int value = LOW; //if (request.indexOf("/relay=ON") != -1) { if (request.indexOf("/on") != -1) { digitalWrite(relayPin, HIGH); value = HIGH; } //if (request.indexOf("/relay=OFF") != -1){ if (request.indexOf("/off") != -1){ digitalWrite(relayPin, LOW); value = LOW; } // Return the response, build the html page // client.println("HTTP/1.1 200 OK"); client.println("Content-Type: text/html"); client.println(""); // do not forget this one client.println("<!DOCTYPE HTML>"); client.println("<html>"); client.print("Relay is now: "); if(value == HIGH) { client.print("Engaged (ON)"); } else { client.print("Disengaged (OFF)"); } client.println(" "); client.println("<a href=\"/on\">Click here to engage (Turn ON) the relay.</a> "); client.println("<a href=\"/off\">Click here to disengage (Turn OFF) the relay.</a> "); client.println("</html>"); delay(1); Serial.println("Client disconnected"); Serial.println(""); ----------------------------- Remove above ----------------------------- ### Basic Infos #### Hardware WiFimanager Branch/Release: Development Esp8266/Esp32: WEMOS D1 Hardware: WEMOS D1 Core Version: 2.4.0, staging ### Description Problem description ### Settings in IDE Module: NodeMcu, Wemos D1 Additional libraries: ### Sketch ```cpp #include <Arduino.h> void setup() { } void loop() { } ``` ### Debug Messages ``` messages here ```

kerem closed this issue

2026-02-28 01:25:32 +03:00

kerem commented

2026-02-28 01:25:32 +03:00

Author

Owner

@tablatronix commented on GitHub (Apr 5, 2018):

#461
There has been several discussions on how best to do this, it seems that simply making the webserver public should work

development has options to keep webserver alive, or ondemand start it whenever you want

@tablatronix commented on GitHub (Apr 5, 2018): #461 There has been several discussions on how best to do this, it seems that simply making the webserver public should work development has options to keep webserver alive, or ondemand start it whenever you want

kerem commented

2026-02-28 01:25:32 +03:00

Author

Owner

@sorriso93 commented on GitHub (Apr 5, 2018):

Hi, checked all discussion and tried some code, for example add_endpoint but with no success (I get compilation error

'class WiFiManager' has no member named 'sendResponse'

in the last row of the callback...

void callback(WiFiManager *wifiManager) {
//do the work
digitalWrite(LED, !digitalRead(LED));

//make the json response
DynamicJsonBuffer jsonBuffer;
JsonObject& json = jsonBuffer.createObject();
json["pin_state"] = digitalRead(LED);
char buffer[json.measureLength() + 1];
json.printTo(buffer, sizeof(buffer));

//send the response back
wifiManager->sendResponse(200, "application/json", buffer);
}

@sorriso93 commented on GitHub (Apr 5, 2018): Hi, checked all discussion and tried some code, for example add_endpoint but with no success (I get compilation error 'class WiFiManager' has no member named 'sendResponse' in the last row of the callback... void callback(WiFiManager *wifiManager) { //do the work digitalWrite(LED, !digitalRead(LED)); //make the json response DynamicJsonBuffer jsonBuffer; JsonObject& json = jsonBuffer.createObject(); json["pin_state"] = digitalRead(LED); char buffer[json.measureLength() + 1]; json.printTo(buffer, sizeof(buffer)); //send the response back wifiManager->sendResponse(200, "application/json", buffer); }

kerem commented

2026-02-28 01:25:32 +03:00

Author

Owner

@tablatronix commented on GitHub (Apr 5, 2018):

you would move the webserver pointer to public in the library

and use that,

wifiManager->sendResponse is totally wrong

it should be something like
wm->WebServer->sendRepsonse

@tablatronix commented on GitHub (Apr 5, 2018): you would move the webserver pointer to public in the library and use that, `wifiManager->sendResponse` is totally wrong it should be something like `wm->WebServer->sendRepsonse`