烧瓶python-POST无法按预期工作
[英]Flask python - POST not working as expected
问题描述
I am learning RESTFUL APIs and I am stuck at a problem which only issues request for GET but fails for POST request. 
我正在学习RESTFUL API，我陷入一个问题，该问题仅发出GET请求，但发出POST请求失败。 The code goes here: 代码在这里：
from flask import Flask, request
app = Flask(__name__)
#Make an app.route() decorator here
@app.route("/puppies", methods = ['GET', 'POST'])
def puppiesFunction():
if request.method == 'GET':
#Call the method to Get all of the puppies
return getAllPuppies()
elif request.method == 'POST':
#Call the method to make a new puppy
return makeANewPuppy()
def getAllPuppies():
return "Getting All the puppies!"
def makeANewPuppy():
return "Creating A New Puppy!"
if __name__ == '__main__':
app.debug = True
app.run(host='0.0.0.0', port=5000)
The GET request works fine but error coming up in POST request. GET请求工作正常，但POST请求中出现错误。 The error is: 错误是：
127.0.0.1 - - [20/May/2016 01:39:34] "POST /puppies/ HTTP/1.1" 404 -
Thanks in advance 提前致谢
2 个解决方案
解决方案1
5 已采纳 2016-05-20 09:19:17
Your POST request has an extra slash at the end of the URL. 您的POST请求的URL末尾会有一个斜杠。 Here are the curl commands: 这是curl命令：
$ curl -X POST 0.0.0.0:5000/puppies
Creating A New Puppy
$ curl -X POST 0.0.0.0:5000/puppies/
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<title>404 Not Found</title>
<h1>Not Found</h1>
<p>The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.</p>
And here are the Flask logs: 这是烧瓶日志：
127.0.0.1 - - [20/May/2016 11:17:12] "POST /puppies HTTP/1.1" 200 -
127.0.0.1 - - [20/May/2016 11:17:20] "POST /puppies/ HTTP/1.1" 404 -
And indeed in your question you used /puppies/ . 实际上，在您的问题中，您使用/puppies/ 。
解决方案2
1 2016-05-20 08:48:20
Your code is working fine, not sure what the problem is. 您的代码运行正常，不确定是什么问题。 i copy pasted your code as follows: 我复制粘贴您的代码，如下所示：
from flask import Flask, render_template, request
app = Flask(__name__)
@app.route("/puppies", methods = ['GET', 'POST'])
def puppiesFunction():
if request.method == 'GET':
#Call the method to Get all of the puppies
return getAllPuppies()
elif request.method == 'POST':
#Call the method to make a new puppy
return makeANewPuppy()
def getAllPuppies():
return "Getting All the puppies!"
def makeANewPuppy():
return "Creating A New Puppy!"
if __name__ == '__main__':
app.run(debug=True)
and the post requests is working as expected. 并且发布请求按预期方式工作。 here is what I did using fiddler: 这是我使用提琴手所做的：
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