curl --request GET \
  --url https://api.attio.com/v2/activities/{activity} \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.attio.com/v2/activities/{activity}"

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

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

print(response.text)

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

fetch('https://api.attio.com/v2/activities/{activity}', 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.attio.com/v2/activities/{activity}",
  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.attio.com/v2/activities/{activity}"

	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.attio.com/v2/activities/{activity}")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.attio.com/v2/activities/{activity}")

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

{
  "data": {
    "id": {
      "workspace_id": "14beef7a-99f7-4534-a87e-70b564330a4c",
      "activity_id": "97052eb9-e65e-443f-a297-f2d9a4a7f795"
    },
    "api_slug": "phone_calls",
    "singular_noun": "Phone call",
    "plural_noun": "Phone calls",
    "extends": [
      {
        "schema_id": "b1d6a29e-6f6f-4a0a-9b0e-59f0a3e3f7a1",
        "schema_slug": "calls"
      }
    ],
    "is_system_activity": true,
    "created_at": "2022-11-21T13:22:49.061281000Z"
  }
}

{
  "status_code": 404,
  "type": "invalid_request_error",
  "code": "not_found",
  "message": "Activity with slug/ID \"phone_calls\" not found."
}