Fixed post request in example

Post-Consume-Script-Examples.md

@@ -8,24 +8,26 @@ A more advanced post consume script which uses Python and the API to assign some
 
 #!/usr/bin/env python3
 
+import os
+import json
+
 # TODO: The user can use anything in the standard library, installed for paperless
 # or use the custom startup scripts to install additional libraries via pip
 import requests
-import os
 
 
 def _set_auth_tokens(paperless_url: str, timeout: float, session: requests.Session):
     # TODO: You fill these in or otherwise provide them
     credentials = {"username": "test", "password": "test"}
 
-    response = sess.get(paperless_url, timeout=timeout)
+    response = session.get(paperless_url, timeout=timeout)
     response.raise_for_status()
 
     csrf_token = response.cookies["csrftoken"]
 
-    response = sess.post(
+    response = session.post(
         paperless_url + "/api/token/",
-        data=credentials,
+        data=json.dumps(credentials),
         headers={"X-CSRFToken": csrf_token},
         timeout=timeout,
     )
@@ -73,7 +75,7 @@ if __name__ == "__main__":
         # Update the document
         resp = sess.patch(
             paperless_url + f"/api/documents/{doc_pk}/",
-            data={"correspondent": new_correspondent, "document_type": new_doc_type},
+            data=json.dumps({"correspondent": new_correspondent, "document_type": new_doc_type}),
             timeout=timeout,
         )
         resp.raise_for_status()