There's a variety of request methods in http protocol. We'll see something like this, '/index.html' or 'foo/mypage' or some other resource that we would like to So, the resource will typically be a path. The resource is typically specified as a path to a resource on the server. The get is the request method, and the resource is the 'index.html'. What we're typically doing is sending a request that has the get request method, and the resource is usually a webpage such as 'index.html', which is usually the core webpage at a website. Should be applied to a specific resource on the server.įor example, when we go and access a webpage, using our browser, All requests are dictated as a request method that The client is asking the server to take on its behalf. Therefore, every request has a request method which is the action or the verb that Now, one of the key parts of that request is the action that the client is asking the server to
We have our server and our client, and we have a request that's being sent. The HTTP protocol is always organized around a client sending a request to the Response_text = await example_response.Details of the HTTP protocol in order to build and debug effective web services. Usage: async def view(request: HttpRequest):
#Python http client code
However, I think this code is ugly and doesn't address e.g. in Django settings or as a module-level variable. Is there any way to globally instantiate aiohttp.ClientSession in Django so that this instance can be shared across multiple requests? Don't forget that ClientSession must be created in a running eventloop ( Why is creating a ClientSession outside of an event loop dangerous?), so we can't instantiate it e.g. This means that when you make several requests to the same host, theĬlient will reuse the underlying TCP connection, instead of recreating On the other hand, a Client instance uses HTTP connection pooling. Most likely you need a session perĪpplication which performs all requests altogether. connection pooling.ĭon’t create a session per request. This code creates a ClientSession for each incoming request, which is inefficient. Return HttpResponse(response_text, content_type="text/plain") Response_text = await example_response.text() I often see the following code sample, which I think is conceptually wrong (although it works perfectly fine): import aiohttpįrom django.http import HttpRequest, HttpResponseĪsync def view_bad_example1(request: HttpRequest):Īsync with aiohttp.ClientSession() as session:Īsync with session.get("") as example_response:
external HTTP APIs (using, for example, aiohttp). Django supports async views since version 3.1, so it's great for non-blocking calls to e.g.