curl --request PATCH \
  --url https://api.example.com/knowledge/content/{content_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data 'name=<string>' \
  --data 'description=<string>' \
  --data 'metadata=<string>' \
  --data 'reader_id=<string>'

import requests

url = "https://api.example.com/knowledge/content/{content_id}"

payload = {
    "name": "<string>",
    "description": "<string>",
    "metadata": "<string>",
    "reader_id": "<string>"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/x-www-form-urlencoded"
}

response = requests.patch(url, data=payload, headers=headers)

print(response.text)

const options = {
  method: 'PATCH',
  headers: {
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/x-www-form-urlencoded'
  },
  body: new URLSearchParams({
    name: '<string>',
    description: '<string>',
    metadata: '<string>',
    reader_id: '<string>'
  })
};

fetch('https://api.example.com/knowledge/content/{content_id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.example.com/knowledge/content/{content_id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => "name=%3Cstring%3E&description=%3Cstring%3E&metadata=%3Cstring%3E&reader_id=%3Cstring%3E",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/x-www-form-urlencoded"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.example.com/knowledge/content/{content_id}"

	payload := strings.NewReader("name=%3Cstring%3E&description=%3Cstring%3E&metadata=%3Cstring%3E&reader_id=%3Cstring%3E")

	req, _ := http.NewRequest("PATCH", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.patch("https://api.example.com/knowledge/content/{content_id}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/x-www-form-urlencoded")
  .body("name=%3Cstring%3E&description=%3Cstring%3E&metadata=%3Cstring%3E&reader_id=%3Cstring%3E")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/knowledge/content/{content_id}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Patch.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/x-www-form-urlencoded'
request.body = "name=%3Cstring%3E&description=%3Cstring%3E&metadata=%3Cstring%3E&reader_id=%3Cstring%3E"

response = http.request(request)
puts response.read_body

{
  "id": "3c2fc685-d451-4d47-b0c0-b9a544c672b7",
  "name": "example.pdf",
  "description": "",
  "type": "application/pdf",
  "size": "251261",
  "metadata": {},
  "access_count": null,
  "status": "completed",
  "status_message": "",
  "created_at": "2025-09-08T15:22:53Z",
  "updated_at": "2025-09-08T15:22:54Z",
  "linked_to": null
}

{
  "detail": "Bad request",
  "error_code": "BAD_REQUEST"
}

{
  "detail": "Unauthenticated access",
  "error_code": "UNAUTHENTICATED"
}

{
  "detail": "Insufficient permissions"
}

{
  "detail": "Not found",
  "error_code": "NOT_FOUND"
}

{
  "detail": "Validation error",
  "error_code": "VALIDATION_ERROR"
}

{
  "detail": "Internal server error",
  "error_code": "INTERNAL_SERVER_ERROR"
}