greiman/SdFat

Wrapper to fs::FS to use SDfat in ESPAsyncWebserver

Opened this issue · 6 comments

JoergTiedemann commented

Is there any wrapper to use Sdfat with a ESPAsyncWebserver to convert sdfat to to fs::FS because of ESPAsyncWebserver needs in AsyncWebServerRequest::send a FS object
or how can I do that ?

greiman commented

I don' know of any use of SdFat with ESPAsyncWebserver.

I avoid using ESP32/ESP8266 because SdFat often conflicts with the ESP file system.

JoergTiedemann commented

I found a wrapper, will post it next weekend
Investors to use the lib on Esp32 because of firebase library by @mobizt requires it because of your library has adjustable speed for spi interface

VeloSteve commented

Any chance you can post that wrapper? SD.h is unreliable for me (on Arduino Nano ESP32), but SdFat is stable, so I need to use SdFat.

JoergTiedemann commented

Hi gimme a chance this weekend
I will try to search the wrapper and post it, if you didn't got any post from me remember me latest this Sunday

JoergTiedemann commented

sd_fat32_fs_wrapper.zip
In the attachment you will find the wrapper
just include the file

I use it als following

SdFat sd_fat_fs;
fs::FS sdfilesys = fs::FS(fs::FSImplPtr(new SdFat32FSImpl(sd_fat_fs)));

If you want to use it with ESP Async Webserver in a response at server.on...
i.g. to respond a picture from an sd card
String picturefilene ="picture.jpg";
request->send(sdfilesys,picturefilename, "image/jpg", false);
hope this helps

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VeloSteve commented

Thank you! I missed your post for a few days and came up with the workaround of replacing send(SD, filename . . . ) calls with sendChunked and my own simple function which gets data from the file using SdFat. Your wrapper is probably nicer, so I'll try it out.