curl --request POST \
  --url https://api.prod.finverse.net/mandates/link \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "link_customizations": {
    "countries": [
      "HKG",
      "SGP"
    ],
    "institution_id": "hsbc-hk",
    "institution_status": "alpha beta supported",
    "language": "en",
    "link_mode": "real",
    "products_supported": [
      "ACCOUNTS",
      "TRANSACTIONS",
      "MANDATE"
    ],
    "redirect_uri": "<string>",
    "ui_mode": "redirect",
    "user_type": [
      "PERSONAL"
    ]
  },
  "mandate_id": "<string>"
}
'

import requests

url = "https://api.prod.finverse.net/mandates/link"

payload = {
    "link_customizations": {
        "countries": ["HKG", "SGP"],
        "institution_id": "hsbc-hk",
        "institution_status": "alpha beta supported",
        "language": "en",
        "link_mode": "real",
        "products_supported": ["ACCOUNTS", "TRANSACTIONS", "MANDATE"],
        "redirect_uri": "<string>",
        "ui_mode": "redirect",
        "user_type": ["PERSONAL"]
    },
    "mandate_id": "<string>"
}
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({
    link_customizations: {
      countries: ['HKG', 'SGP'],
      institution_id: 'hsbc-hk',
      institution_status: 'alpha beta supported',
      language: 'en',
      link_mode: 'real',
      products_supported: ['ACCOUNTS', 'TRANSACTIONS', 'MANDATE'],
      redirect_uri: '<string>',
      ui_mode: 'redirect',
      user_type: ['PERSONAL']
    },
    mandate_id: '<string>'
  })
};

fetch('https://api.prod.finverse.net/mandates/link', 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.prod.finverse.net/mandates/link",
  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([
    'link_customizations' => [
        'countries' => [
                'HKG',
                'SGP'
        ],
        'institution_id' => 'hsbc-hk',
        'institution_status' => 'alpha beta supported',
        'language' => 'en',
        'link_mode' => 'real',
        'products_supported' => [
                'ACCOUNTS',
                'TRANSACTIONS',
                'MANDATE'
        ],
        'redirect_uri' => '<string>',
        'ui_mode' => 'redirect',
        'user_type' => [
                'PERSONAL'
        ]
    ],
    'mandate_id' => '<string>'
  ]),
  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.prod.finverse.net/mandates/link"

	payload := strings.NewReader("{\n  \"link_customizations\": {\n    \"countries\": [\n      \"HKG\",\n      \"SGP\"\n    ],\n    \"institution_id\": \"hsbc-hk\",\n    \"institution_status\": \"alpha beta supported\",\n    \"language\": \"en\",\n    \"link_mode\": \"real\",\n    \"products_supported\": [\n      \"ACCOUNTS\",\n      \"TRANSACTIONS\",\n      \"MANDATE\"\n    ],\n    \"redirect_uri\": \"<string>\",\n    \"ui_mode\": \"redirect\",\n    \"user_type\": [\n      \"PERSONAL\"\n    ]\n  },\n  \"mandate_id\": \"<string>\"\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.prod.finverse.net/mandates/link")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"link_customizations\": {\n    \"countries\": [\n      \"HKG\",\n      \"SGP\"\n    ],\n    \"institution_id\": \"hsbc-hk\",\n    \"institution_status\": \"alpha beta supported\",\n    \"language\": \"en\",\n    \"link_mode\": \"real\",\n    \"products_supported\": [\n      \"ACCOUNTS\",\n      \"TRANSACTIONS\",\n      \"MANDATE\"\n    ],\n    \"redirect_uri\": \"<string>\",\n    \"ui_mode\": \"redirect\",\n    \"user_type\": [\n      \"PERSONAL\"\n    ]\n  },\n  \"mandate_id\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.prod.finverse.net/mandates/link")

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  \"link_customizations\": {\n    \"countries\": [\n      \"HKG\",\n      \"SGP\"\n    ],\n    \"institution_id\": \"hsbc-hk\",\n    \"institution_status\": \"alpha beta supported\",\n    \"language\": \"en\",\n    \"link_mode\": \"real\",\n    \"products_supported\": [\n      \"ACCOUNTS\",\n      \"TRANSACTIONS\",\n      \"MANDATE\"\n    ],\n    \"redirect_uri\": \"<string>\",\n    \"ui_mode\": \"redirect\",\n    \"user_type\": [\n      \"PERSONAL\"\n    ]\n  },\n  \"mandate_id\": \"<string>\"\n}"

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