ESP32 Forum

Hi,
Http post file (multi part) is not implemented.

HttpServer class does not support file post.

Have any one implement its own.

class MyMultiPart is commented out in https://github.com/nkolban/ESP32_Explorer


Thanks,
Naeem

Sending large file cause stack overflow. I guess HttpServer does not handle multi-part.

D (1451808) HttpServerTask: HttpServer that was listening on port 80 has received a new client connection; sockFd=4098
D (1451819) HttpParser: >> parse: socket: fd: 4098
D (1451825) HttpParser: >> parseRequestLine: "POST /upload_file HTTP/1.1" [26]
D (1451831) HttpParser: << parseRequestLine: method: POST, url: /upload_file, version: HTTP/1.1
Guru Meditation Error: Core 0 panic'ed (Unhandled debug exception)
Debug exception reason: Stack canary watchpoint triggered (HttpServerTask)

Backtrace: 0x4000c350:0x3ffcf300 0x401436ab:0x3ffcf310 0x4013d2f9:0x3ffcf330 0x4013db3d:0x3ffcf3b0 0x4013dbae:0x3ffcf3e0 0x4010c753:0x3ffcf400 0x4010f9fe:0x3ffcf430 0x4010d82a:0x3ffd4080 0x40109e2a:0x3ffd4310 0x4010c2a0:0x3ffd4420
0x401436ab: pbuf_copy_partial at C:/Work/LibDev/esp32/esp-idf/components/lwip/core/pbuf.c:1247

0x4013d2f9: lwip_recvfrom at C:/Work/LibDev/esp32/esp-idf/components/lwip/api/sockets.c:1814

0x4013db3d: lwip_recvfrom_r at C:/Work/LibDev/esp32/esp-idf/components/lwip/api/sockets.c:1814

0x4013dbae: lwip_recv_r at C:/Work/LibDev/esp32/esp-idf/components/lwip/api/sockets.c:1814

0x4010c753: Socket::receive(unsigned char*, unsigned int, bool) at C:/Work/LibDev/esp32/esp-idf/components/cpp_utils/Socket.cpp:245

0x4010f9fe: HttpParser::parse(std::shared_ptr) at C:/Work/LibDev/esp32/esp-idf/components/cpp_utils/HttpParser.cpp:219

0x4010d82a: HttpRequest::HttpRequest(std::shared_ptr) at C:/Work/LibDev/esp32/esp-idf/components/cpp_utils/HttpRequest.cpp:98

0x40109e2a: HttpServerTask::run(void*) at C:/Work/LibDev/esp32/esp-idf/components/cpp_utils/HttpServer.cpp:323

0x4010c2a0: Task::runTask(void*) at C:/Work/LibDev/esp32/esp-idf/components/cpp_utils/Task.cpp:59

Can any one answer this thread. I am struggling handling upload file.

Any free open source to parse multipart/form http post request and extract file content.

WebServer c++ class which is based on mongoose handle multi-part http request. it works.

I need same functionality in HttpServer class. Can any one suggest where i can get buffer with file content with multiple request.
and pass to my Multi-part parser.

Wireshark is not helping. it does not shows upload file content chunk by chunk for unsecured http.

Any progress ?
I am also interesting about it.

I am using Mongoose web server. It is working good.

Thank you for your comment.

Did you just copy mongoose.c and mongoose.h files to your build tree ?
Did you have uploaded your code somewhere ?

I try to upload jpag data from M5camera to my Node-RED server.
I could post partial base64 data to sever, but the base64 data is too big,
I need multipart upload.....

I am using Kolban c++ class.

https://github.com/nkolban/esp32-snippe ... Server.cpp which encapsulate mongoose.

I tweak few things. by and large. It is same as above.
Multipart upload works for me.

Try first above class. It not working I can share my modified version of WebServer.cpp and WebServer.ch


Thanks,
Naeem

Thank you for the link.

I will add mongoose codes to my project.

Here's my M5Camera code without POST. (article written in Japanese)

https://qiita.com/dinosauria123/items/c ... 23dc916609

Thank you again for your helps !

I found two API http_response_begin_multipart(), http_response_end_multipart() in esp32-http-server.

https://github.com/igrr/esp32-http-server/

This may help implement http multipart.