Tools to make ASGI Applications
Project description
asgi-tools – Tools to make ASGI Applications
Features:
Request – Parse ASGI scope, get url, headers, cookies, read a request’s data/json/form-data
Response – Send HTTP (text, html, json, stream, file, http errors) responses
RequestMiddleware – Parse a scope and insert the parsed request into the scope
ResponseMiddleware – Parse responses and convert them into ASGI messages
RouterMiddleware – Route HTTP requests
LifespanMiddleware – Process a lifespan cycle
StaticFilesMiddleware – Serve static files from URL prefixes
AppMiddleware – A combined (request, response, router, lifespan) middleware to quikly create ASGI apps
Requirements
python >= 3.7
Installation
asgi-tools should be installed using pip:
pip install asgi-tools
Usage
asgi_tools.Request, asgi_tools.Response
Parse HTTP Request data from a scope and return it as JSON response:
import json
from asgi_tools import Request, Response
async def app(scope, receive, send):
if scope['type'] != 'http':
return
# Parse scope
request = Request(scope, receive, send)
request_data = {
# Get full URL
"url": str(request.url),
"charset": request.charset,
# Get headers
"headers": {**request.headers},
# Get query params
"query": dict(request.query),
# Get cookies
"cookies": dict(request.cookies),
}
# Create a response (ResponseHTML, ResponseText, ResponseJSON, ResponseStream, ResponseFile, ResponseRedirect also available)
response = Response(json.dumps(request_data), content_type="application/json")
# Send ASGI messages
return await response(scope, receive, send)Response/Request Middlewares
Automatically convert a scope into a asgi_tools.Request
from asgi_tools import RequestMiddleware, ResponseHTML
async def app(request, receive, send):
# We will get a parsed request here
data = await request.json()
response = ResponseHTML(data['name'])
return await response(request, receive, send)
app = RequestMiddleware(app)Automatically parse an result from asgi apps and convert it into a asgi_tools.Response
from asgi_tools import ResponseMiddleware
async def app(request, receive, send):
return "Hello World!"
app = ResponseMiddleware(app)Router Middleware
Route HTTP requests
from http_router import Router
from asgi_tools import RouterMiddleware, RequestMiddleware, ResponseMiddleware
router = Router()
@router.route('/page1')
async def page1(request, receive, send):
return 'page1'
@router.route('/page2')
async def page2(request, receive, send):
return 'page2'
# TODOBug tracker
If you have any suggestions, bug reports or annoyances please report them to the issue tracker at https://github.com/klen/asgi-tools/issues
Contributing
Development of the project happens at: https://github.com/klen/asgi-tools
License
Licensed under a MIT license.
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