如何在Flask中将文本写入响应

Question

I have a endpoint in my application which when hit I want to send a response to the client. I am doing it like this in flask.

from flask import Response
def heartbeat():
response = Response()
response.headers['Last-Modified'] = datetime.now()
response.headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, post-check=0, pre-check=0, max-age=0'
response.headers['Expires'] = '-1'
return response(heartbeat)

This is throwing a error that call takes three arguments. What am I missing here ?

Answer 1

from flask import Response, Flask

app = Flask(__name__)

@app.route("/")
def heartbeat():
    response = Response()
    response.headers['Last-Modified'] = datetime.now()
    response.headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, post-check=0, pre-check=0, max-age=0'
    response.headers['Expires'] = '-1'
    return response

then access "localhost:5000/" it will be ok.