Since 3.10.1 Any AsyncCallbackJsonWebHandler Post Handler is returning 404

[alanaquilina]

Platform

ESP32

IDE / Tooling

Arduino (IDE/CLI)

What happened?

I updated from 3.9.6 to 3.10.1 and this code is now always returning 404

AsyncCallbackJsonWebHandler* loginHandler = new AsyncCallbackJsonWebHandler("/oca-timer/login", handlePostLogin);        
server.addHandler(loginHandler);

The first line in the handler is just a Serial Print but it never shows.

I downgraded to 3.10.0 and it worked.

AsyncTCP is 3.4.10

Stack Trace

n/a

P.S. On another note the please decode it link does not work

Minimal Reproductible Example (MRE)

#include <Arduino.h>
#include <AsyncTCP.h>
#include <WiFi.h>
#include <ESPAsyncWebServer.h>
#include <ArduinoJson.h>

AsyncWebServer server(80);
void connectToWifi (char* ssid, char*password)
{
  WiFi.disconnect(false);
  WiFi.persistent(false);
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);  

  bool ret = false;
  Serial.println("");
  int i = 0;
  while (WiFi.status() != WL_CONNECTED && i < 60) {
    delay(1000);
    Serial.print(".");
    i++;
  }
  Serial.println("");
  char msg[100];
  sprintf (msg, "WiFi connected IP: %d.%d.%d.%d", WiFi.localIP()[0], WiFi.localIP()[1], WiFi.localIP()[2], WiFi.localIP()[3]);
  Serial.println (msg);
}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);    
  connectToWifi("SSID", "PASSWORD");

  AsyncCallbackJsonWebHandler *testHandler =
      new AsyncCallbackJsonWebHandler("/test", handlePostTest);
  server.addHandler(testHandler);
  server.begin();
  
}

void handlePostTest (AsyncWebServerRequest *req, JsonVariant &json)
{  
  Serial.println ("In Test Handler");
  AsyncWebServerResponse *response;
  if (req->method() == HTTP_POST) {
     response = req->beginResponse(200, "application/json", "{\"msg\": \"OK\"}");      
  }
  else
  {
    req->beginResponse(501, "application/json", "{\"msg\": \"Not Implemented\"}");
  }
  req->send(response);  
}

void loop() {
  // put your main code here, to run repeatedly:

}

v 3.10.0

v3.10.1

I confirm that:

• I have read the documentation.
• I have searched for similar discussions.
• I have searched for similar issues.
• I have looked at the examples.
• I have upgraded to the lasted version of ESPAsyncWebServer (and AsyncTCP for ESP32).

[mathieucarbou]

@alanaquilina : I can reproduce and opened a PR to fix the issue that was introduced in a previous pr to fix another bug. This was a typo didn't caught in the review process.

Could you please point your project to the main branch with:

lib_deps = https://github.com/ESP32Async/ESPAsyncWebServer

And test again?

I will wait for your feedback before releasing.

it works on my side.

Thanks for the bug report!

[alanaquilina]

@mathieucarbou Unfortunately this is not working for me. Still the same behaviour. Here are the pio pkg list output and lib_deps section.

[mathieucarbou]

weird, I was able to confirm the bug ad the fix through testing.

Can you try something else ?

by pointing to branch fix/402

lib_deps = https://github.com/ESP32Async/ESPAsyncWebServer#fix/402

[alanaquilina]

Unfortunately still the same :(

[mathieucarbou]

@alanaquilina : I tested with our json examples from main branch and they do work: https://github.com/ESP32Async/ESPAsyncWebServer/pull/412/changes

~/.../Workspace/forks 
❯  curl -v -X POST -H 'Content-Type: application/json' -d '{"name":"You"}' http://192.168.4.1/test
Note: Unnecessary use of -X or --request, POST is already inferred.
*   Trying 192.168.4.1:80...
* Established connection to 192.168.4.1 (192.168.4.1 port 80) from 192.168.4.2 port 57432 
* using HTTP/1.x
> POST /test HTTP/1.1
> Host: 192.168.4.1
> User-Agent: curl/8.18.0
> Accept: */*
> Content-Type: application/json
> Content-Length: 14
> 
* upload completely sent off: 14 bytes
< HTTP/1.1 200 OK
< Connection: close
< Accept-Ranges: none
< Content-Length: 13
< Content-Type: application/json
< 
* shutting down connection #0
{"msg": "OK"}
~/.../Workspace/forks 
❯  curl -v http://192.168.4.1/test
*   Trying 192.168.4.1:80...
* Established connection to 192.168.4.1 (192.168.4.1 port 80) from 192.168.4.2 port 57433 
* using HTTP/1.x
> GET /test HTTP/1.1
> Host: 192.168.4.1
> User-Agent: curl/8.18.0
> Accept: */*
> 
* Request completely sent off
< HTTP/1.1 501 Not Implemented
< Connection: close
< Accept-Ranges: none
< Content-Length: 26
< Content-Type: application/json
< 
* shutting down connection #0
{"msg": "Not Implemented"}
~/.../Workspace/forks 
❯  

your code is wrong though. It should be:

void handlePostTest (AsyncWebServerRequest *req, JsonVariant &json)
{  
  Serial.println ("In Test Handler");
  AsyncWebServerResponse *response;
  if (req->method() == HTTP_POST) {
     response = req->beginResponse(200, "application/json", "{\"msg\": \"OK\"}");      
  }
  else
  {
     response = req->beginResponse(501, "application/json", "{\"msg\": \"Not Implemented\"}");
  }
  req->send(response);  
}