curl --request PUT \
  --url https://api.example.com/api/expenses/{id} \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: application/json' \
  --header 'organization-id: <organization-id>' \
  --data '
{
  "referenceNo": "INV-123456",
  "paymentDate": "2021-01-01",
  "paymentAccountId": 1,
  "description": "This is a description",
  "exchangeRate": 1,
  "currencyCode": "USD",
  "publish": true,
  "payeeId": 1,
  "branchId": 1,
  "categories": [
    {
      "index": 1,
      "expenseAccountId": 1,
      "amount": 100,
      "description": "This is a description",
      "landedCost": true,
      "projectId": 1
    }
  ],
  "attachments": [
    {
      "key": "123456"
    }
  ]
}
'

import requests

url = "https://api.example.com/api/expenses/{id}"

payload = {
    "referenceNo": "INV-123456",
    "paymentDate": "2021-01-01",
    "paymentAccountId": 1,
    "description": "This is a description",
    "exchangeRate": 1,
    "currencyCode": "USD",
    "publish": True,
    "payeeId": 1,
    "branchId": 1,
    "categories": [
        {
            "index": 1,
            "expenseAccountId": 1,
            "amount": 100,
            "description": "This is a description",
            "landedCost": True,
            "projectId": 1
        }
    ],
    "attachments": [{ "key": "123456" }]
}
headers = {
    "Authorization": "<authorization>",
    "organization-id": "<organization-id>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PUT',
  headers: {
    Authorization: '<authorization>',
    'organization-id': '<organization-id>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    referenceNo: 'INV-123456',
    paymentDate: '2021-01-01',
    paymentAccountId: 1,
    description: 'This is a description',
    exchangeRate: 1,
    currencyCode: 'USD',
    publish: true,
    payeeId: 1,
    branchId: 1,
    categories: [
      {
        index: 1,
        expenseAccountId: 1,
        amount: 100,
        description: 'This is a description',
        landedCost: true,
        projectId: 1
      }
    ],
    attachments: [{key: '123456'}]
  })
};

fetch('https://api.example.com/api/expenses/{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/api/expenses/{id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'referenceNo' => 'INV-123456',
    'paymentDate' => '2021-01-01',
    'paymentAccountId' => 1,
    'description' => 'This is a description',
    'exchangeRate' => 1,
    'currencyCode' => 'USD',
    'publish' => true,
    'payeeId' => 1,
    'branchId' => 1,
    'categories' => [
        [
                'index' => 1,
                'expenseAccountId' => 1,
                'amount' => 100,
                'description' => 'This is a description',
                'landedCost' => true,
                'projectId' => 1
        ]
    ],
    'attachments' => [
        [
                'key' => '123456'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <authorization>",
    "Content-Type: application/json",
    "organization-id: <organization-id>"
  ],
]);

$response = curl_exec($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/api/expenses/{id}"

	payload := strings.NewReader("{\n  \"referenceNo\": \"INV-123456\",\n  \"paymentDate\": \"2021-01-01\",\n  \"paymentAccountId\": 1,\n  \"description\": \"This is a description\",\n  \"exchangeRate\": 1,\n  \"currencyCode\": \"USD\",\n  \"publish\": true,\n  \"payeeId\": 1,\n  \"branchId\": 1,\n  \"categories\": [\n    {\n      \"index\": 1,\n      \"expenseAccountId\": 1,\n      \"amount\": 100,\n      \"description\": \"This is a description\",\n      \"landedCost\": true,\n      \"projectId\": 1\n    }\n  ],\n  \"attachments\": [\n    {\n      \"key\": \"123456\"\n    }\n  ]\n}")

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

	req.Header.Add("Authorization", "<authorization>")
	req.Header.Add("organization-id", "<organization-id>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.put("https://api.example.com/api/expenses/{id}")
  .header("Authorization", "<authorization>")
  .header("organization-id", "<organization-id>")
  .header("Content-Type", "application/json")
  .body("{\n  \"referenceNo\": \"INV-123456\",\n  \"paymentDate\": \"2021-01-01\",\n  \"paymentAccountId\": 1,\n  \"description\": \"This is a description\",\n  \"exchangeRate\": 1,\n  \"currencyCode\": \"USD\",\n  \"publish\": true,\n  \"payeeId\": 1,\n  \"branchId\": 1,\n  \"categories\": [\n    {\n      \"index\": 1,\n      \"expenseAccountId\": 1,\n      \"amount\": 100,\n      \"description\": \"This is a description\",\n      \"landedCost\": true,\n      \"projectId\": 1\n    }\n  ],\n  \"attachments\": [\n    {\n      \"key\": \"123456\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/api/expenses/{id}")

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

request = Net::HTTP::Put.new(url)
request["Authorization"] = '<authorization>'
request["organization-id"] = '<organization-id>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"referenceNo\": \"INV-123456\",\n  \"paymentDate\": \"2021-01-01\",\n  \"paymentAccountId\": 1,\n  \"description\": \"This is a description\",\n  \"exchangeRate\": 1,\n  \"currencyCode\": \"USD\",\n  \"publish\": true,\n  \"payeeId\": 1,\n  \"branchId\": 1,\n  \"categories\": [\n    {\n      \"index\": 1,\n      \"expenseAccountId\": 1,\n      \"amount\": 100,\n      \"description\": \"This is a description\",\n      \"landedCost\": true,\n      \"projectId\": 1\n    }\n  ],\n  \"attachments\": [\n    {\n      \"key\": \"123456\"\n    }\n  ]\n}"

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