Upload Turtle files by Post method in Python

Question

I am trying to send a turtle file via a Python script using REST api to the local repository but the System is returning the following error

MALFORMED DATA: Illegal subject value: "-"^^http://www.w3.org/2001/XMLSchema#integer [line 1]

400

The used code is as follows:

import requests

url = 'http://localhost:7200/repositories/metaphactory1/statements'
with open("graph-29.ttl", "rb") as ttl_file:
    file_dict = {"graph-29.ttl" : ttl_file}
    headers = {
        "Content-type": "application/x-turtle;charset=UTF-8",
    }

    r = requests.post(url, files=file_dict, headers=headers)
    print(r.text)

    print(r.status_code)

The same file when tried with a Curl command is working fine:

 curl -X POST -H "Content-Type: application/x-turtle" -T graph-29.ttl 'http://localhost:7200/repositories/metaphactory1/statements'

Any idea regarding this issue is welcome

Show us graph-29.ttl, From the error it seems you have something like "-"^^xsd:integer. Also, the official content type is text/turtle — Vladimir Alexiev
– Vladimir Alexiev, Commented Feb 12, 2021 at 11:45

Fabien Mainville · Accepted Answer · 2021-02-18 19:23:50Z

0

I think your problem come from the way you pass your file to the post request. You should try using the data parameter of the post request. For example:

import requests

url = 'http://localhost:7200/repositories/metaphactory1/statements'
file_path = '/path/to/your/file/graph-29.ttl'
graph_name = 'http://graph-29'
headers = {
  'Content-type': 'application/x-turtle',
}

params = {'graph': graph_name} #optional
response = requests.post(url, headers=headers, params=params, data=open(file_path,'r', encoding='utf-8').read())

answered Feb 18, 2021 at 19:23

Fabien Mainville

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