curl --request GET \
  --url https://api.telli.com/v2/contacts \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.telli.com/v2/contacts"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.telli.com/v2/contacts', 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.telli.com/v2/contacts",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.telli.com/v2/contacts"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.telli.com/v2/contacts")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.telli.com/v2/contacts")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

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

{
  "type": "ContactCollection",
  "data": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "type": "Contact",
      "externalId": "<string>",
      "externalUrl": "<string>",
      "salutation": "<string>",
      "firstName": "<string>",
      "lastName": "<string>",
      "phoneNumber": "<string>",
      "timezoneIana": "<string>",
      "email": "<string>",
      "createdAt": "2023-11-07T05:31:56Z",
      "updatedAt": "2023-11-07T05:31:56Z",
      "properties": [
        {
          "key": "<string>",
          "dataType": "string",
          "value": "<unknown>",
          "label": "<string>",
          "options": [
            {
              "value": "<string>",
              "label": "<string>",
              "description": "<string>"
            }
          ]
        }
      ]
    }
  ],
  "pageInfo": {
    "hasNextPage": true,
    "nextCursor": "<string>"
  },
  "meta": {
    "limit": 123,
    "count": 123,
    "total": 123
  }
}

{
  "defined": true,
  "code": "INVALID_CURSOR",
  "status": 400,
  "message": "Invalid pagination cursor",
  "data": {
    "cursor": "<string>"
  }
}

{
  "defined": true,
  "code": "UNAUTHORIZED",
  "status": 401,
  "message": "API key is missing or invalid",
  "data": "<unknown>"
}

{
  "defined": true,
  "code": "PAYMENT_REQUIRED",
  "status": 402,
  "message": "API access requires a paid plan",
  "data": "<unknown>"
}