curl --request PATCH \
  --url https://b.anny.co/api/v1/items/{item_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '
{
  "data": {
    "id": "<string>",
    "type": "items",
    "attributes": {
      "name": "<string>",
      "quantity": 123,
      "unit_price": 123,
      "total": 123,
      "tax_rate": 123,
      "tax_amount": 123,
      "currency": "<string>"
    },
    "links": {
      "self": "<string>"
    },
    "relationships": {
      "invoice": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "itemable": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      }
    }
  }
}
'

import requests

url = "https://b.anny.co/api/v1/items/{item_id}"

payload = { "data": {
        "id": "<string>",
        "type": "items",
        "attributes": {
            "name": "<string>",
            "quantity": 123,
            "unit_price": 123,
            "total": 123,
            "tax_rate": 123,
            "tax_amount": 123,
            "currency": "<string>"
        },
        "links": { "self": "<string>" },
        "relationships": {
            "invoice": {
                "data": {
                    "type": "<string>",
                    "id": "<string>"
                },
                "links": { "self": "<string>" }
            },
            "itemable": {
                "data": {
                    "type": "<string>",
                    "id": "<string>"
                },
                "links": { "self": "<string>" }
            }
        }
    } }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/vnd.api+json"
}

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

print(response.text)

const options = {
  method: 'PATCH',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/vnd.api+json'},
  body: JSON.stringify({
    data: {
      id: '<string>',
      type: 'items',
      attributes: {
        name: '<string>',
        quantity: 123,
        unit_price: 123,
        total: 123,
        tax_rate: 123,
        tax_amount: 123,
        currency: '<string>'
      },
      links: {self: '<string>'},
      relationships: {
        invoice: {data: {type: '<string>', id: '<string>'}, links: {self: '<string>'}},
        itemable: {data: {type: '<string>', id: '<string>'}, links: {self: '<string>'}}
      }
    }
  })
};

fetch('https://b.anny.co/api/v1/items/{item_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://b.anny.co/api/v1/items/{item_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 => json_encode([
    'data' => [
        'id' => '<string>',
        'type' => 'items',
        'attributes' => [
                'name' => '<string>',
                'quantity' => 123,
                'unit_price' => 123,
                'total' => 123,
                'tax_rate' => 123,
                'tax_amount' => 123,
                'currency' => '<string>'
        ],
        'links' => [
                'self' => '<string>'
        ],
        'relationships' => [
                'invoice' => [
                                'data' => [
                                                                'type' => '<string>',
                                                                'id' => '<string>'
                                ],
                                'links' => [
                                                                'self' => '<string>'
                                ]
                ],
                'itemable' => [
                                'data' => [
                                                                'type' => '<string>',
                                                                'id' => '<string>'
                                ],
                                'links' => [
                                                                'self' => '<string>'
                                ]
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/vnd.api+json"
  ],
]);

$response = curl_exec($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://b.anny.co/api/v1/items/{item_id}"

	payload := strings.NewReader("{\n  \"data\": {\n    \"id\": \"<string>\",\n    \"type\": \"items\",\n    \"attributes\": {\n      \"name\": \"<string>\",\n      \"quantity\": 123,\n      \"unit_price\": 123,\n      \"total\": 123,\n      \"tax_rate\": 123,\n      \"tax_amount\": 123,\n      \"currency\": \"<string>\"\n    },\n    \"links\": {\n      \"self\": \"<string>\"\n    },\n    \"relationships\": {\n      \"invoice\": {\n        \"data\": {\n          \"type\": \"<string>\",\n          \"id\": \"<string>\"\n        },\n        \"links\": {\n          \"self\": \"<string>\"\n        }\n      },\n      \"itemable\": {\n        \"data\": {\n          \"type\": \"<string>\",\n          \"id\": \"<string>\"\n        },\n        \"links\": {\n          \"self\": \"<string>\"\n        }\n      }\n    }\n  }\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/vnd.api+json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.patch("https://b.anny.co/api/v1/items/{item_id}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/vnd.api+json")
  .body("{\n  \"data\": {\n    \"id\": \"<string>\",\n    \"type\": \"items\",\n    \"attributes\": {\n      \"name\": \"<string>\",\n      \"quantity\": 123,\n      \"unit_price\": 123,\n      \"total\": 123,\n      \"tax_rate\": 123,\n      \"tax_amount\": 123,\n      \"currency\": \"<string>\"\n    },\n    \"links\": {\n      \"self\": \"<string>\"\n    },\n    \"relationships\": {\n      \"invoice\": {\n        \"data\": {\n          \"type\": \"<string>\",\n          \"id\": \"<string>\"\n        },\n        \"links\": {\n          \"self\": \"<string>\"\n        }\n      },\n      \"itemable\": {\n        \"data\": {\n          \"type\": \"<string>\",\n          \"id\": \"<string>\"\n        },\n        \"links\": {\n          \"self\": \"<string>\"\n        }\n      }\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://b.anny.co/api/v1/items/{item_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/vnd.api+json'
request.body = "{\n  \"data\": {\n    \"id\": \"<string>\",\n    \"type\": \"items\",\n    \"attributes\": {\n      \"name\": \"<string>\",\n      \"quantity\": 123,\n      \"unit_price\": 123,\n      \"total\": 123,\n      \"tax_rate\": 123,\n      \"tax_amount\": 123,\n      \"currency\": \"<string>\"\n    },\n    \"links\": {\n      \"self\": \"<string>\"\n    },\n    \"relationships\": {\n      \"invoice\": {\n        \"data\": {\n          \"type\": \"<string>\",\n          \"id\": \"<string>\"\n        },\n        \"links\": {\n          \"self\": \"<string>\"\n        }\n      },\n      \"itemable\": {\n        \"data\": {\n          \"type\": \"<string>\",\n          \"id\": \"<string>\"\n        },\n        \"links\": {\n          \"self\": \"<string>\"\n        }\n      }\n    }\n  }\n}"

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

{
  "data": {
    "id": "<string>",
    "type": "items",
    "attributes": {
      "name": "<string>",
      "quantity": 123,
      "unit_price": 123,
      "total": 123,
      "tax_rate": 123,
      "tax_amount": 123,
      "currency": "<string>"
    },
    "links": {
      "self": "<string>"
    },
    "relationships": {
      "invoice": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      },
      "itemable": {
        "data": {
          "type": "<string>",
          "id": "<string>"
        },
        "links": {
          "self": "<string>"
        }
      }
    }
  }
}