Flask Api to parse xml post requests returning errors
I am writing a python-flask api to parse and manipulate xml using xml to dict. Below is my initial code:
from flask import Flask, jsonify, abort, make_response, request,
render_template
import sys, sqlite3, requests, datetime, time, re, json, optparse
import xmltodict
import helpers
import platform
app = Flask(__name__)
start = int(round(time.time()))
print("api running")
@app.route("/", methods=['GET', 'POST'])
def parse_xml():
content_dict = xmltodict.parse(request.data)
return content_dict
if __name__ == '__main__':
print("Starting python app")
app.run(host='0.0.0.0', port=8080, debug=False)
The following curl request: curl -H "Authorization: Bearer Token" -X POST -d '<xml><From>Jack</From><Body>Hello, it worked!</Body></xml>' url
Returns the errors:
2018-04-18T13:33:38.831293275Z [2018-04-18 13:33:38,830] ERROR in app: Exception on / [POST] 2018-04-18T13:33:38.831324305Z Traceback (most recent call last): 2018-04-18T13:33:38.831331225Z File "/usr/lib/python2.7/site-packages/flask/app.py", line 1982, in wsgi_app 2018-04-18T13:33:38.831336961Z response = self.full_dispatch_request() 2018-04-18T13:33:38.83134283Z File "/usr/lib/python2.7/site-packages/flask/app.py", line 1614, in full_dispatch_request 2018-04-18T13:33:38.831352063Z rv = self.handle_user_exception(e) 2018-04-18T13:33:38.831357531Z File "/usr/lib/python2.7/site-packages/flask/app.py", line 1517, in handle_user_exception 2018-04-18T13:33:38.83136302Z
reraise(exc_type, exc_value, tb) 2018-04-18T13:33:38.831367481Z File "/usr/lib/python2.7/site-packages/flask/app.py", line 1612, in full_dispatch_request 2018-04-18T13:33:38.831372038Z rv = self.dispatch_request() 2018-04-18T13:33:38.831377673Z File "/usr/lib/python2.7/site-packages/flask/app.py", line 1598, in dispatch_request 2018-04-18T13:33:38.831385927Z return self.view_functionsrule.endpoint 2018-04-18T13:33:38.831391913Z File "/src/simpleapp.py", line 14, in parse_xml 2018-04-18T13:33:38.831396571Z content_dict = xmltodict.parse(request.data) 2018-04-18T13:33:38.831401027Z File "/usr/lib/python2.7/site-packages/xmltodict.py", line 330, in parse 2018-04-18T13:33:38.831407166Z parser.Parse(xml_input, True) 2018-04-18T13:33:38.831412259Z ExpatError: no element found: line 1, column 0 2018-04-18T13:33:38.831705887Z 100.96.2.171 - - [18/Apr/2018 13:33:38] "POST / HTTP/1.1" 500 -
Any help would be appreciated, thank you.
Answer
You have to change you're curl request to be key=value pairs for easy handling.
Curl:
curl -H "Authorization: Bearer Token" -X POST -d 'SomeKey=<xml><From>Jack</From><Body>Hello, it worked!</Body></xml>' http://127.0.0.1:5000
Python:
from flask import Flask, jsonify, request
import xmltodict
app = Flask(__name__)
@app.route("/", methods=['GET', 'POST'])
def parse_xml():
xml_data = request.form['SomeKey']
content_dict = xmltodict.parse(xml_data)
return jsonify(content_dict)
Response:
{
"xml": {
"Body": "Hello, it worked!",
"From": "Jack"
}
}