[英]Is it possible to make POST request in Flask?
There is a need to make POST request from server side in Flask.需要在 Flask 中从服务器端发出 POST 请求。
Let's imagine that we have:假设我们有:
@app.route("/test", methods=["POST"])
def test():
test = request.form["test"]
return "TEST: %s" % test
@app.route("/index")
def index():
# Is there something_like_this method in Flask to perform the POST request?
return something_like_this("/test", { "test" : "My Test Data" })
I haven't found anything specific in Flask documentation.我在 Flask 文档中没有找到任何具体的内容。 Some say
urllib2.urlopen
is the issue but I failed to combine Flask and urlopen
.有人说
urllib2.urlopen
是问题,但我没有将 Flask 和urlopen
结合起来。 Is it really possible?真的有可能吗?
For the record, here's general code to make a POST request from Python:作为记录,以下是从 Python 发出 POST 请求的通用代码:
#make a POST request
import requests
dictToSend = {'question':'what is the answer?'}
res = requests.post('http://localhost:5000/tests/endpoint', json=dictToSend)
print 'response from server:',res.text
dictFromServer = res.json()
Notice that we are passing in a Python dict using the json=
option.请注意,我们使用
json=
选项传入 Python 字典。 This conveniently tells the requests library to do two things:这很方便地告诉请求库做两件事:
And here's a Flask application that will receive and respond to that POST request:这是一个 Flask 应用程序,它将接收并响应该 POST 请求:
#handle a POST request
from flask import Flask, render_template, request, url_for, jsonify
app = Flask(__name__)
@app.route('/tests/endpoint', methods=['POST'])
def my_test_endpoint():
input_json = request.get_json(force=True)
# force=True, above, is necessary if another developer
# forgot to set the MIME type to 'application/json'
print 'data from client:', input_json
dictToReturn = {'answer':42}
return jsonify(dictToReturn)
if __name__ == '__main__':
app.run(debug=True)
Yes, to make a POST request you can use urllib
, see the documentation .是的,要发出 POST 请求,您可以使用
urllib
,请参阅文档。
I would however recommend to use the requests module instead.但是,我建议改用requests模块。
EDIT :编辑:
I suggest you refactor your code to extract the common functionality:我建议您重构代码以提取通用功能:
@app.route("/test", methods=["POST"])
def test():
return _test(request.form["test"])
@app.route("/index")
def index():
return _test("My Test Data")
def _test(argument):
return "TEST: %s" % argument
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