curl --request POST \
  --url https://api.smile.io/v1/activities \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "activity": {
    "customer_id": 304169228,
    "token": "activity_f57a9b5a8d0ac5",
    "distinct_id": "212993",
    "created_on_origin_at": "2024-04-04T15:10:42.030Z"
  }
}
'

package main

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

func main() {

	url := "https://api.smile.io/v1/activities"

	payload := strings.NewReader("{\n  \"activity\": {\n    \"customer_id\": 304169228,\n    \"token\": \"activity_f57a9b5a8d0ac5\",\n    \"distinct_id\": \"212993\",\n    \"created_on_origin_at\": \"2024-04-04T15:10:42.030Z\"\n  }\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.smile.io/v1/activities")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"activity\": {\n    \"customer_id\": 304169228,\n    \"token\": \"activity_f57a9b5a8d0ac5\",\n    \"distinct_id\": \"212993\",\n    \"created_on_origin_at\": \"2024-04-04T15:10:42.030Z\"\n  }\n}")
  .asString();

const url = 'https://api.smile.io/v1/activities';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    activity: {
      customer_id: 304169228,
      token: 'activity_f57a9b5a8d0ac5',
      distinct_id: '212993',
      created_on_origin_at: '2024-04-04T15:10:42.030Z'
    }
  })
};

fetch(url, options)
  .then(res => res.json())
  .then(json => console.log(json))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.smile.io/v1/activities",
  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([
    'activity' => [
        'customer_id' => 304169228,
        'token' => 'activity_f57a9b5a8d0ac5',
        'distinct_id' => '212993',
        'created_on_origin_at' => '2024-04-04T15:10:42.030Z'
    ]
  ]),
  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;
}

$headers=@{}
$headers.Add("Authorization", "Bearer <token>")
$headers.Add("Content-Type", "application/json")
$response = Invoke-WebRequest -Uri 'https://api.smile.io/v1/activities' -Method POST -Headers $headers -ContentType 'application/json' -Body '{
  "activity": {
    "customer_id": 304169228,
    "token": "activity_f57a9b5a8d0ac5",
    "distinct_id": "212993",
    "created_on_origin_at": "2024-04-04T15:10:42.030Z"
  }
}'

import requests

url = "https://api.smile.io/v1/activities"

payload = { "activity": {
        "customer_id": 304169228,
        "token": "activity_f57a9b5a8d0ac5",
        "distinct_id": "212993",
        "created_on_origin_at": "2024-04-04T15:10:42.030Z"
    } }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

require 'uri'
require 'net/http'

url = URI("https://api.smile.io/v1/activities")

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  \"activity\": {\n    \"customer_id\": 304169228,\n    \"token\": \"activity_f57a9b5a8d0ac5\",\n    \"distinct_id\": \"212993\",\n    \"created_on_origin_at\": \"2024-04-04T15:10:42.030Z\"\n  }\n}"

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

{
  "activity": {
    "id": 503256787,
    "customer_id": 304169228,
    "token": "activity_f57a9b5a8d0ac5",
    "distinct_id": "212993",
    "created_on_origin_at": "2024-04-04T15:10:42.030Z",
    "created_at": "2024-05-15T08:35:08.920Z",
    "updated_at": "2024-05-15T08:35:08.920Z"
  }
}