curl --request POST \
  --url https://api.aisa.one/apis/v1/alpha-vantage/fx-daily \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "to_symbol": "USD",
  "from_symbol": "EUR"
}
'

import requests

url = "https://api.aisa.one/apis/v1/alpha-vantage/fx-daily"

payload = {
    "to_symbol": "USD",
    "from_symbol": "EUR"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({to_symbol: 'USD', from_symbol: 'EUR'})
};

fetch('https://api.aisa.one/apis/v1/alpha-vantage/fx-daily', 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.aisa.one/apis/v1/alpha-vantage/fx-daily",
  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([
    'to_symbol' => 'USD',
    'from_symbol' => 'EUR'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "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.aisa.one/apis/v1/alpha-vantage/fx-daily"

	payload := strings.NewReader("{\n  \"to_symbol\": \"USD\",\n  \"from_symbol\": \"EUR\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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.aisa.one/apis/v1/alpha-vantage/fx-daily")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"to_symbol\": \"USD\",\n  \"from_symbol\": \"EUR\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.aisa.one/apis/v1/alpha-vantage/fx-daily")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"to_symbol\": \"USD\",\n  \"from_symbol\": \"EUR\"\n}"

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

{
  "Meta Data": {
    "3. To Symbol": "<string>",
    "6. Time Zone": "<string>",
    "1. Information": "<string>",
    "2. From Symbol": "<string>",
    "4. Output Size": "<string>",
    "5. Last Refreshed": "<string>"
  },
  "Time Series FX (Daily)": {}
}