Принимайте платежи в USDT и USDC одним запросом к API

curl https://api.lirchain.com/merchant/one-time-payment/create \
  -H "x-api-key: YOUR_API_KEY" \
  -H "content-type: application/json" \
  -d '{
    "network": "polygon",
    "asset": "USDT",
    "amount": 49.5,
    "external_id": "order-1042"
  }'

const API_KEY = "YOUR_API_KEY";

async function createPayment(params) {
    const response = await fetch("https://api.lirchain.com/merchant/one-time-payment/create", {
        method: "POST",
        headers: { "x-api-key": API_KEY, "content-type": "application/json" },
        body: JSON.stringify(params),
    });

    if (!response.ok) {
        throw new Error(`LirChain API ${response.status}: ${await response.text()}`);
    }

    return response.json();
}

const result = await createPayment({
    network: "polygon",
    asset: "USDT",
    amount: 49.5,
    external_id: "order-1042",
});

const API_KEY = "YOUR_API_KEY";

type CreatePaymentParams = {
    network: string;
    asset: string;
    amount?: number;
    receive_amount?: number;
    external_id?: string;
};

type CreatePaymentResult = {
    id: string;
    external_id: string | null;
    network: string;
    address: string;
    asset: string;
    amount: number;
    pay_amount: number;
    receive_amount: string;
    status: string;
    fee: string;
    created_ms: number;
    expire_ms: number;
};

async function createPayment(params: CreatePaymentParams): Promise<CreatePaymentResult> {
    const response = await fetch("https://api.lirchain.com/merchant/one-time-payment/create", {
        method: "POST",
        headers: { "x-api-key": API_KEY, "content-type": "application/json" },
        body: JSON.stringify(params),
    });

    if (!response.ok) {
        throw new Error(`LirChain API ${response.status}: ${await response.text()}`);
    }

    return response.json();
}

const result = await createPayment({
    network: "polygon",
    asset: "USDT",
    amount: 49.5,
    external_id: "order-1042",
});

import requests

API_KEY = "YOUR_API_KEY"


def create_payment(**params):
    response = requests.post(
        "https://api.lirchain.com/merchant/one-time-payment/create",
        headers={"x-api-key": API_KEY},
        json=params,
        timeout=30,
    )
    response.raise_for_status()
    return response.json()


result = create_payment(
    network="polygon",
    asset="USDT",
    amount=49.5,
    external_id="order-1042",
)

<?php

const API_KEY = "YOUR_API_KEY";

function create_payment(array $params): array
{
    $curl = curl_init("https://api.lirchain.com/merchant/one-time-payment/create");

    curl_setopt_array($curl, [
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_POST => true,
        CURLOPT_POSTFIELDS => json_encode($params),
        CURLOPT_HTTPHEADER => ["x-api-key: " . API_KEY, "content-type: application/json"],
    ]);

    $body = curl_exec($curl);
    $status = curl_getinfo($curl, CURLINFO_HTTP_CODE);

    if ($body === false || $status >= 400) {
        throw new Exception("LirChain API $status: $body");
    }

    return json_decode($body, true);
}

$result = create_payment([
    "network" => "polygon",
    "asset" => "USDT",
    "amount" => 49.5,
    "external_id" => "order-1042",
]);

package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io"
	"net/http"
)

const apiKey = "YOUR_API_KEY"

func CreatePayment(params map[string]any) (map[string]any, error) {
	body, err := json.Marshal(params)
	if err != nil {
		return nil, err
	}

	request, err := http.NewRequest("POST", "https://api.lirchain.com/merchant/one-time-payment/create", bytes.NewReader(body))
	if err != nil {
		return nil, err
	}
	request.Header.Set("x-api-key", apiKey)
	request.Header.Set("content-type", "application/json")

	response, err := http.DefaultClient.Do(request)
	if err != nil {
		return nil, err
	}
	defer response.Body.Close()

	data, err := io.ReadAll(response.Body)
	if err != nil {
		return nil, err
	}
	if response.StatusCode >= 400 {
		return nil, fmt.Errorf("LirChain API %d: %s", response.StatusCode, data)
	}

	var result map[string]any
	return result, json.Unmarshal(data, &result)
}

func main() {
	result, err := CreatePayment(map[string]any{
		"network": "polygon",
		"asset": "USDT",
		"amount": 49.5,
		"external_id": "order-1042",
	})
	fmt.Println(result, err)
}

{
  "id": "ccf1c790-9d3d-4cda-98a9-5cd590a102df",
  "external_id": "order-1042",
  "network": "polygon",
  "address": "0x20d5b8802fc43b24cdbc9cdaa59dd6690626ad2c",
  "asset": "USDT",
  "amount": 49.5,
  "pay_amount": 49.5,
  "receive_amount": "49.2525",
  "status": "pending",
  "fee": "0",
  "created_ms": 1791503932667,
  "expire_ms": 1791507532667
}

{
  "type": "one-time-payment",
  "payment": {
    "id": "ccf1c790-9d3d-4cda-98a9-5cd590a102df",
    "external_id": "order-1042",
    "project_id": "3d6b1130-da92-4ddf-bad2-93f898993c39",
    "network": "polygon",
    "address": "0x20d5b8802fc43b24cdbc9cdaa59dd6690626ad2c",
    "asset": "USDT",
    "contract": "0xc2132d05d31c914a87c6611c10748aeb04b58e8f",
    "amount": 49.5,
    "pay_amount": 49.5,
    "receive_amount": "49.2525",
    "received": "49.5",
    "status": "paid",
    "fee": "0.2475",
    "created_ms": 1791503932667,
    "expire_ms": 1791507532667
  }
}