响应
使用sanic.response
模块中的函数来创建响应。
Plain Text
from sanic import response
@app.route('/text')
def handle_request(request):
return response.text('Hello world!')
HTML
from sanic import response
@app.route('/html')
def handle_request(request):
return response.html('<p>Hello world!</p>')
JSON
from sanic import response
@app.route('/json')
def handle_request(request):
return response.json({'message': 'Hello world!'})
File
from sanic import response
@app.route('/file')
async def handle_request(request):
return await response.file('/srv/www/whatever.png')
Streaming
from sanic import response
@app.route("/streaming")
async def index(request):
async def streaming_fn(response):
await response.write('foo')
await response.write('bar')
return response.stream(streaming_fn, content_type='text/plain')
See Streaming for more information.
File Streaming
对于大型文件,请结合上述文件和流媒体
from sanic import response
@app.route('/big_file.png')
async def handle_request(request):
return await response.file_stream('/srv/www/whatever.png')
Redirect
from sanic import response
@app.route('/redirect')
def handle_request(request):
return response.redirect('/json')
Raw
无需编码body即可响应
from sanic import response
@app.route('/raw')
def handle_request(request):
return response.raw(b'raw data')
Empty
在 RFC 2616中定义用于响应由定义的空消息
from sanic import response@app.route('/empty')async def handle_request(request): return response.empty()
更改headers or status
要修改标题或状态代码,请将headers,status
参数传递给这些函数
from sanic import response@app.route('/json')def handle_request(request): return response.json( {'message': 'Hello world!'}, headers={'X-Served-By': 'sanic'}, status=200 )