sanic | web app development | Build fast | Web Framework library
kandi X-RAY | sanic Summary
kandi X-RAY | sanic Summary
Accelerate your web app development | Build fast. Run fast.
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Top functions reviewed by kandi - BETA
- Start a WSGI application .
- Create a route .
- Register an app .
- Handle a request .
- Initialize the server .
- Returns an HTTPResponse .
- Parse HTTP header .
- Load a module from a file .
- Respond to this request .
- Close the connection .
sanic Key Features
sanic Examples and Code Snippets
Lines of Code : 2License : Permissive (MIT)
CopyIt clearly inspired Uvicorn and Starlette, that are currently faster than Sanic in open benchmarks.
That's why **FastAPI** is based on Starlette, as it is the fastest framework available (tested by third-party benchmarks).
Sanic makes use of ``uvloop`` and ``ujson`` to help with performance. If you do not want to use those packages, simply add an environmental variable ``SANIC_NO_UVLOOP=true`` or ``SANIC_NO_UJSON=true`` at install time.
$ export SANIC_NO_UVLOOP=true
$ from sanic import Sanic
from sanic.response import json
app = Sanic("my-hello-world-app")
@app.route('/')
async def test(request):
return json({'hello': 'world'})
if __name__ == '__main__':
app.run()
[2018-12-30 11:37:41 +0200] [13564] [INFO] import os
from sanic import Sanic, response
from sanic.exceptions import ServerError
from sanic.log import logger as log
app = Sanic("Example")
@app.route("/")
async def test_async(request):
return response.json({"test": True})
@app.route( from sanic import Sanic, response, text
from sanic.handlers import ErrorHandler
from sanic.server.async_server import AsyncioServer
HTTP_PORT = 9999
HTTPS_PORT = 8888
http = Sanic("http")
http.config.SERVER_NAME = f"localhost:{HTTP_PORT}"
https = import logging
from contextvars import ContextVar
from sanic import Sanic, response
log = logging.getLogger(__name__)
class RequestIdFilter(logging.Filter):
def filter(self, record):
try:
record.request_id = app.ctx.requ Community Discussions
Trending Discussions on sanic
QUESTION
The sanic python http server provides a context object for global state. A nice newer feature of python is type checking, which can detect misspelled attributes. Is there a way of telling a type system like mypy what attributes, and their types you want to add to context object?
...ANSWER
Answered 2022-Feb-02 at 06:05Because the object is a SimpleNamespace, there is no OOTB way to handle this. But, you have a few alternatives.
First, you can use Sanic Extensions to inject an object that is typed.
QUESTION
I am trying to load machine learning model output with Sanic. I have loaded the output in the main method(defined globally). It works fine when I set sanic worker as 1 but not not working with multiple sanic workers when defined globally. My code waits for indefinite time for model to generate desired result.
Its works when I load model output inside the function (e.g. here in the method modelrun) even if sanic workers >= 1
It works when I load model output globally(outside the function) but only if sanic workers = 1
...It doesnot work when I load model output globally(outside the function) if sanic workers > 1
ANSWER
Answered 2022-Jan-10 at 08:44Upgrade Sanic Version to 21.12.1
When you have multiple workers, Sanic will start a main process that manages several subprocesses. These subprocesses will be the application server workers.
Check out the cycle here. https://sanicframework.org/en/guide/basics/listeners.html
After loading the pickle, it seems to be solved by adding it to the context property.
ex.
QUESTION
Assuming I have this listener defined in my Sanic app:
...ANSWER
Answered 2022-Jan-03 at 11:20I am going to make a few assumptions here, so I may need to amend this answer if there are some clarifications.
Before starting, it should be noted that the decorator itself will not start your web server. That will run in one of two scenarios:
- You are running
app.run()somewhere in the global scope - You are using the Sanic
TestClient, which specifically operates by running your application's web server
Now, from what I can understand, you are trying to run db_setup in a test manually by calling it as a function, but you do not want it to attach as a listener to the application in your tests.
You can get access to all of your application instance's listeners in the app.listeners property. Therefore one solution would be something like this:
QUESTION
I'm trying to run a server from the sanic getting started example, here is my code in server.py:
ANSWER
Answered 2021-Dec-31 at 11:45I'm not sure why you can't just run sanic --dev server.app. I get the same error as you.
However, running python -m sanic --dev server.app does appear to work:
QUESTION
On the frontend, I'm sending a DELETE request with a JSON Payload. This works fine and the data is correctly send, but in the backend - using Sanic Framework - the request's body is empty.
...ANSWER
Answered 2021-Dec-20 at 10:28By default, Sanic will not consume the body of a DELETE. There are two alternatives:
Option #1 - Tell Sanic to consume the body
QUESTION
I'm developing an API (using Sanic) which is a gateway to IB, using ib_insync This API exposes endpoints to place a new order and getting live positions, but also is in charge to update order statuses in a DB using the events of ib_insync.
My question is - is it possible to have the API connect only once to IB when it goes up, and re-using the same connection for all requests?
I'm currently connecting to IB using connectAsync on every request. And while this is working - the API will not receive events if not currently handling a request.
This is one endpoint code, for reference
...ANSWER
Answered 2021-Dec-15 at 16:52I'm not familiar with this particular connection, but yes it should be possible. Presumably the with statement is opening and closing the connection.
Instead, open and close it with a listener.
QUESTION
I have not worked much with async python, but currently i have a project with Sanic framework. There is websocket endpoint, which receives data from client, sends message to client, that task have been started, then runs long sync task (there is no options to make it async) and finally sends message to client that task is done. There is some example code:
...ANSWER
Answered 2021-Dec-07 at 10:51If you call a synchronous function from a coroutine the entire loop and all tasks running inside it will be waiting for that single synchronous function to complete.
If you need to have a long running synchronous function, and await asyncronously for the result there are a few ways, most people use a background thread of some kind.
Here is an example of socket.gethostbyaddr() (a sometimes very slow to finish synchronous function) being used asyncronously.
QUESTION
Using Sanic, you can handle websockets connections using @app.websocket('/socket.io/') but the protocol used in Socket.io is specific.
Python has Python-Socketio as a module to handle Socket.Io specific communications, but they recommend to use the code like this :
...ANSWER
Answered 2021-Oct-18 at 09:16The Socket.IO protocol is very complex, it will take you a decent amount of time to implement it all manually in the websocket route. Also note that Socket.IO uses the same route for HTTP and WebSocket, something that I understand it is not possible to do (easily, at least) with Sanic.
The python-socketio package integrates with many frameworks, including Sanic to implement all the details of the Socket.IO protocol.
QUESTION
I have python application which I am deploying through. Container is creating properly and it is up and running. But server is getting stop and throwing error.
Dockerfile
...ANSWER
Answered 2021-Sep-17 at 15:41Binding to '0.0.0.0' (all NICs) seemed to solve the issue after hardcoding that to the app.start function.
Before used to bind to ipv6 localhost address (::1)
QUESTION
I have created a Rasa Chatbot that asks user information and store it in the postgres database. Locally it works. I have been trying to do that in the docker but it is not working. I'm new to docker. could anyone help me. Thanks in advance
Docker-compose.yml
...ANSWER
Answered 2021-Aug-05 at 10:15Think of containers in the stack as of different physical or virtual machines. Your database is on one host and the chatbot is on another. Naturally the chatbot cannot find /var/run/postgresql/.s.PGSQL.5432 locally because it's in another container (as if on another computer), so you need to use network connection to reach it:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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No vulnerabilities reported
Install sanic
You can use sanic like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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