Crash on request.get_body() about growler HOT 4 CLOSED

Ohh, yeah looks like get_body() was a failed experiment - bridging a non-coroutine to a coroutine.

The Problem:

In short, to speed up processing the request, the HTTP headers are read and then the middleware is processed immediately. The res.body attribute is a Future, allowing the backend to cache the (potentially large) file while the webapp is running, until the body is requested. This was the purpose of get_body(), to get the value of the future without having your function be a coroutine.
The problem is, there is no way to do that. I was trying to start a new loop, obviously it didn't like that.

The Solution:

Coroutines are supported as Growler middleware, and you're using python3.5 so it's super easy!

Make post_test asynchronous by doing something like:

@app.post('/data')
async def post_test(req, res):
    print(await req.body)
    res.send_text("OK!\n")

That should work for you (also add the res.send_text so the curl command doesn't print the 404 error).

from growler.

For python 3.4 compatibility, this works:

@app.post('/data')
@asyncio.coroutine
def post_test(req, res):
    data = yield from req.body
    print(data)
    res.send_text("OK")

I'm thrilled you think Growler can help you with your project, but please note that it is still a baby project and is missing a lot of functionality. I'd really appreciate any other questions or bugs you find.

from growler.

Thank you for the answer. I see that it`s baby project. I need just a few things, but with a lot of middlewares. Tbh flask middlewares are awful, while yours are look like node or golang one. Thank you one more time.

from growler.

I'm running into a similar problem, but instead of crashing I'm just waiting forever for the body to load. This happens when I post all different types of files to my POST endpoint and of various of sizes. It works quickly for smaller files but when I send pdfs and pngs that are only 320K it hangs.

from growler.