"blob" is missing from aio.ajax's format

[goffi-contrib]

Hello,

It is not currently (as of Brython 3.8.9) possible to request a Blob response format when using aio.ajax method. This is a problem when we want to fetch a file, and binary is not a good alternative, specially if we want to upload the fetched field using an other ajax request (which is my use case).

I would like to be able to do something like that, and that doesn't seem possible with current aio module:

r = await aio.get(some_url, format="blob")
blob = r.data
# some processing…
await aio.ajax("PUT", some_other_url, data=blob)

aio module is nice to avoid callbacks hell that we would have with blocking browser.ajax

Thanks!

note: maybe I've missed something with the binary format, but it seems that we can't use it to send binary data, as aio.ajax expects a str or a dict according to doc.

[PierreQuentel]

I have fixed the issue by allowing to send bytes in the argument data of POST or PUT requests.

[goffi-contrib]

@PierreQuentel Hello, thanks for that. I guess that works too, but what if we get a blob, is there a way to convert a JS blob to Brython bytes? Does using bytes has an impact on performances (memory or CPU)? Thanks!