curl --request POST \
  --url https://api.fiet.finance/v1/swap \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "chainId": 1,
  "tokenIn": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
  "tokenOut": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
  "tradeType": "EXACT_IN",
  "amount": "1000000",
  "slippageBps": 50
}
'

import requests

url = "https://api.fiet.finance/v1/swap"

payload = {
    "chainId": 1,
    "tokenIn": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
    "tokenOut": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
    "tradeType": "EXACT_IN",
    "amount": "1000000",
    "slippageBps": 50
}
headers = {
    "Authorization": "Basic <encoded-value>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Basic <encoded-value>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    chainId: 1,
    tokenIn: '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48',
    tokenOut: '0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2',
    tradeType: 'EXACT_IN',
    amount: '1000000',
    slippageBps: 50
  })
};

fetch('https://api.fiet.finance/v1/swap', 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.fiet.finance/v1/swap",
  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([
    'chainId' => 1,
    'tokenIn' => '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48',
    'tokenOut' => '0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2',
    'tradeType' => 'EXACT_IN',
    'amount' => '1000000',
    'slippageBps' => 50
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Basic <encoded-value>",
    "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.fiet.finance/v1/swap"

	payload := strings.NewReader("{\n  \"chainId\": 1,\n  \"tokenIn\": \"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48\",\n  \"tokenOut\": \"0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2\",\n  \"tradeType\": \"EXACT_IN\",\n  \"amount\": \"1000000\",\n  \"slippageBps\": 50\n}")

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

	req.Header.Add("Authorization", "Basic <encoded-value>")
	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.fiet.finance/v1/swap")
  .header("Authorization", "Basic <encoded-value>")
  .header("Content-Type", "application/json")
  .body("{\n  \"chainId\": 1,\n  \"tokenIn\": \"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48\",\n  \"tokenOut\": \"0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2\",\n  \"tradeType\": \"EXACT_IN\",\n  \"amount\": \"1000000\",\n  \"slippageBps\": 50\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.fiet.finance/v1/swap")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Basic <encoded-value>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"chainId\": 1,\n  \"tokenIn\": \"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48\",\n  \"tokenOut\": \"0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2\",\n  \"tradeType\": \"EXACT_IN\",\n  \"amount\": \"1000000\",\n  \"slippageBps\": 50\n}"

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

{
  "quote": {
    "asOf": {
      "timestamp": "2023-11-07T05:31:56Z",
      "blockNumber": 123
    },
    "expiresAt": "2023-11-07T05:31:56Z",
    "chainId": 123,
    "tokenIn": "<string>",
    "tokenOut": "<string>",
    "amountIn": "<string>",
    "amountOut": "<string>",
    "fees": {},
    "route": {}
  },
  "instructions": [
    {
      "kind": "EVM_CALL",
      "chainId": 123,
      "to": "<string>",
      "data": "<string>",
      "value": "<string>",
      "constraints": {
        "notAfter": "2023-11-07T05:31:56Z",
        "maxSlippageBps": 2500
      }
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 123,
  "detail": "<string>"
}