curl --request POST \
  --url https://api.example.com/v1/transactions/{entity_id} \
  --header 'Content-Type: application/json' \
  --data '
{
  "item_id": "<string>",
  "transaction_timestamp": "2023-11-07T05:31:56Z",
  "quantity": 123,
  "selling_price": 123,
  "sku": "<string>",
  "region": "<string>",
  "sales_value": 123,
  "gross_profit": 123,
  "stock_after_sale": 123,
  "regular_price": 123,
  "promo_type": "<string>",
  "zone_price": 123,
  "external_transaction_id": "<string>",
  "unit_cost": 123,
  "discount_rate": 123,
  "currency": "<string>",
  "tax_rate": 123,
  "transaction_type": "<string>",
  "store_id": "<string>"
}
'

import requests

url = "https://api.example.com/v1/transactions/{entity_id}"

payload = {
    "item_id": "<string>",
    "transaction_timestamp": "2023-11-07T05:31:56Z",
    "quantity": 123,
    "selling_price": 123,
    "sku": "<string>",
    "region": "<string>",
    "sales_value": 123,
    "gross_profit": 123,
    "stock_after_sale": 123,
    "regular_price": 123,
    "promo_type": "<string>",
    "zone_price": 123,
    "external_transaction_id": "<string>",
    "unit_cost": 123,
    "discount_rate": 123,
    "currency": "<string>",
    "tax_rate": 123,
    "transaction_type": "<string>",
    "store_id": "<string>"
}
headers = {"Content-Type": "application/json"}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    item_id: '<string>',
    transaction_timestamp: '2023-11-07T05:31:56Z',
    quantity: 123,
    selling_price: 123,
    sku: '<string>',
    region: '<string>',
    sales_value: 123,
    gross_profit: 123,
    stock_after_sale: 123,
    regular_price: 123,
    promo_type: '<string>',
    zone_price: 123,
    external_transaction_id: '<string>',
    unit_cost: 123,
    discount_rate: 123,
    currency: '<string>',
    tax_rate: 123,
    transaction_type: '<string>',
    store_id: '<string>'
  })
};

fetch('https://api.example.com/v1/transactions/{entity_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/v1/transactions/{entity_id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'item_id' => '<string>',
    'transaction_timestamp' => '2023-11-07T05:31:56Z',
    'quantity' => 123,
    'selling_price' => 123,
    'sku' => '<string>',
    'region' => '<string>',
    'sales_value' => 123,
    'gross_profit' => 123,
    'stock_after_sale' => 123,
    'regular_price' => 123,
    'promo_type' => '<string>',
    'zone_price' => 123,
    'external_transaction_id' => '<string>',
    'unit_cost' => 123,
    'discount_rate' => 123,
    'currency' => '<string>',
    'tax_rate' => 123,
    'transaction_type' => '<string>',
    'store_id' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/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://api.example.com/v1/transactions/{entity_id}"

	payload := strings.NewReader("{\n  \"item_id\": \"<string>\",\n  \"transaction_timestamp\": \"2023-11-07T05:31:56Z\",\n  \"quantity\": 123,\n  \"selling_price\": 123,\n  \"sku\": \"<string>\",\n  \"region\": \"<string>\",\n  \"sales_value\": 123,\n  \"gross_profit\": 123,\n  \"stock_after_sale\": 123,\n  \"regular_price\": 123,\n  \"promo_type\": \"<string>\",\n  \"zone_price\": 123,\n  \"external_transaction_id\": \"<string>\",\n  \"unit_cost\": 123,\n  \"discount_rate\": 123,\n  \"currency\": \"<string>\",\n  \"tax_rate\": 123,\n  \"transaction_type\": \"<string>\",\n  \"store_id\": \"<string>\"\n}")

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

	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.post("https://api.example.com/v1/transactions/{entity_id}")
  .header("Content-Type", "application/json")
  .body("{\n  \"item_id\": \"<string>\",\n  \"transaction_timestamp\": \"2023-11-07T05:31:56Z\",\n  \"quantity\": 123,\n  \"selling_price\": 123,\n  \"sku\": \"<string>\",\n  \"region\": \"<string>\",\n  \"sales_value\": 123,\n  \"gross_profit\": 123,\n  \"stock_after_sale\": 123,\n  \"regular_price\": 123,\n  \"promo_type\": \"<string>\",\n  \"zone_price\": 123,\n  \"external_transaction_id\": \"<string>\",\n  \"unit_cost\": 123,\n  \"discount_rate\": 123,\n  \"currency\": \"<string>\",\n  \"tax_rate\": 123,\n  \"transaction_type\": \"<string>\",\n  \"store_id\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/v1/transactions/{entity_id}")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"item_id\": \"<string>\",\n  \"transaction_timestamp\": \"2023-11-07T05:31:56Z\",\n  \"quantity\": 123,\n  \"selling_price\": 123,\n  \"sku\": \"<string>\",\n  \"region\": \"<string>\",\n  \"sales_value\": 123,\n  \"gross_profit\": 123,\n  \"stock_after_sale\": 123,\n  \"regular_price\": 123,\n  \"promo_type\": \"<string>\",\n  \"zone_price\": 123,\n  \"external_transaction_id\": \"<string>\",\n  \"unit_cost\": 123,\n  \"discount_rate\": 123,\n  \"currency\": \"<string>\",\n  \"tax_rate\": 123,\n  \"transaction_type\": \"<string>\",\n  \"store_id\": \"<string>\"\n}"

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

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "item_id": "<string>",
  "sku": "<string>",
  "region": "<string>",
  "sales_value": "<string>",
  "gross_profit": "<string>",
  "stock_after_sale": "<string>",
  "regular_price": "<string>",
  "promo_type": "<string>",
  "zone_price": "<string>",
  "external_transaction_id": "<string>",
  "unit_cost": "<string>",
  "discount_rate": "<string>",
  "currency": "<string>",
  "tax_rate": "<string>",
  "transaction_type": "<string>",
  "store_id": "<string>",
  "transaction_timestamp": "2023-11-07T05:31:56Z",
  "quantity": "<string>",
  "selling_price": "<string>"
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>",
      "input": "<unknown>",
      "ctx": {}
    }
  ]
}