curl --request POST \
  --url https://core.nozle.app/api/v1/features/evaluate_expression \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "expression": "round((ended_at - started_at) * units)",
  "event": {
    "code": "storage",
    "properties": {},
    "timestamp": "1651240791"
  }
}
'

import requests

url = "https://core.nozle.app/api/v1/features/evaluate_expression"

payload = {
    "expression": "round((ended_at - started_at) * units)",
    "event": {
        "code": "storage",
        "properties": {},
        "timestamp": "1651240791"
    }
}
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({
    expression: 'round((ended_at - started_at) * units)',
    event: {code: 'storage', properties: {}, timestamp: '1651240791'}
  })
};

fetch('https://core.nozle.app/api/v1/features/evaluate_expression', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

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

func main() {

	url := "https://core.nozle.app/api/v1/features/evaluate_expression"

	payload := strings.NewReader("{\n  \"expression\": \"round((ended_at - started_at) * units)\",\n  \"event\": {\n    \"code\": \"storage\",\n    \"properties\": {},\n    \"timestamp\": \"1651240791\"\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))

}

require 'uri'
require 'net/http'

url = URI("https://core.nozle.app/api/v1/features/evaluate_expression")

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  \"expression\": \"round((ended_at - started_at) * units)\",\n  \"event\": {\n    \"code\": \"storage\",\n    \"properties\": {},\n    \"timestamp\": \"1651240791\"\n  }\n}"

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

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://core.nozle.app/api/v1/features/evaluate_expression",
  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([
    'expression' => 'round((ended_at - started_at) * units)',
    'event' => [
        'code' => 'storage',
        'properties' => [
                
        ],
        'timestamp' => '1651240791'
    ]
  ]),
  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;
}

HttpResponse<String> response = Unirest.post("https://core.nozle.app/api/v1/features/evaluate_expression")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"expression\": \"round((ended_at - started_at) * units)\",\n  \"event\": {\n    \"code\": \"storage\",\n    \"properties\": {},\n    \"timestamp\": \"1651240791\"\n  }\n}")
  .asString();

{
  "expression_result": {
    "value": "<string>"
  }
}

{
  "status": 400,
  "error": "Bad request"
}

{
  "status": 401,
  "error": "Unauthorized"
}

{
  "status": 422,
  "error": "Unprocessable entity",
  "code": "validation_errors",
  "error_details": {}
}