sanic之websocket路由

在某些时候，需要建立websocket路由，来建立长链接，来实时传输数据，就比如一些聊天应用，就有实时音视频，需要实时传出状态

在sanic框架中支持两种websocket路由方式，有一种是再app中建立，另一种实在蓝图中，但是没有提供类的路由写法，都是通过函数的写法

１．app

from sanic import Sanic
app = Sanic(__name__)

@app.websocket('/feed')
async def feed(request, ws):
    try:
        while True:
            data = 'hello!'
            print('Sending: ' + data)
            await ws.send(data)
            data = await ws.recv()
            print('Received: ' + data)
    except Exception as e:
        print(e)

＃app.add_websocket_route(feed, "/feed")
if __name__ == '__main__':
    app.run(host='0.0.0.0', port=8009)　

2.blueprint

接口：ws://ip号:8001/api/student/v2/feed

StudentVideoCallBP = Blueprint(__name__, url_prefix='/api/student/v2/')

@StudentVideoCallBP.websocket('/feed')
async def feed(ws):
    try:
        while True:
            data = 'hello!'
            print('Sending: ' + data)
            await ws.send(data)
            data = await ws.recv()
            print('Received: ' + data)
    except Exception as e:
        print(e)


# StudentVideoCallBP.add_websocket_route(feed, "/feed")

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