curl --request POST \
  --url https://api.photon.codes/v1/organizations/{organizationId}/billing/projects/{projectId}/purchase \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "category": "<string>",
  "planCode": "<string>"
}
'

import requests

url = "https://api.photon.codes/v1/organizations/{organizationId}/billing/projects/{projectId}/purchase"

payload = {
    "category": "<string>",
    "planCode": "<string>"
}
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({category: '<string>', planCode: '<string>'})
};

fetch('https://api.photon.codes/v1/organizations/{organizationId}/billing/projects/{projectId}/purchase', 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.photon.codes/v1/organizations/{organizationId}/billing/projects/{projectId}/purchase",
  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([
    'category' => '<string>',
    'planCode' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "Idempotency-Key: <idempotency-key>"
  ],
]);

$response = curl_exec($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.photon.codes/v1/organizations/{organizationId}/billing/projects/{projectId}/purchase"

	payload := strings.NewReader("{\n  \"category\": \"<string>\",\n  \"planCode\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	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.photon.codes/v1/organizations/{organizationId}/billing/projects/{projectId}/purchase")
  .header("Idempotency-Key", "<idempotency-key>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"category\": \"<string>\",\n  \"planCode\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.photon.codes/v1/organizations/{organizationId}/billing/projects/{projectId}/purchase")

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

request = Net::HTTP::Post.new(url)
request["Idempotency-Key"] = '<idempotency-key>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"category\": \"<string>\",\n  \"planCode\": \"<string>\"\n}"

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

{
  "failure": null,
  "kind": "change_plan",
  "operationId": "<string>",
  "resolvedAt": "<string>",
  "result": {
    "effectiveAt": "<string>",
    "type": "version",
    "version": "<string>"
  },
  "status": "succeeded",
  "submittedAt": "<string>"
}

{
  "failure": null,
  "kind": "change_plan",
  "operationId": "<string>",
  "resolvedAt": null,
  "result": null,
  "status": "pending",
  "submittedAt": "<string>"
}

{
  "code": "INVALID_ARGUMENT",
  "status": 400,
  "title": "Invalid Argument",
  "type": "https://photon.codes/docs/problems/invalid-argument"
}

{
  "code": "NOT_AUTHENTICATED",
  "status": 401,
  "title": "Not Authenticated",
  "type": "https://photon.codes/docs/problems/not-authenticated"
}

{
  "code": "FORBIDDEN",
  "status": 403,
  "title": "Forbidden",
  "type": "https://photon.codes/docs/problems/forbidden"
}

{
  "code": "FAILED_PRECONDITION",
  "status": 409,
  "title": "Failed Precondition",
  "type": "https://photon.codes/docs/problems/failed-precondition"
}

{
  "code": "PAYLOAD_TOO_LARGE",
  "status": 413,
  "title": "Payload Too Large",
  "type": "https://photon.codes/docs/problems/payload-too-large"
}

{
  "code": "VALIDATION_FAILED",
  "issues": [
    {
      "code": "invalid_type",
      "location": "json",
      "message": "Expected a string.",
      "path": "/name"
    }
  ],
  "status": 422,
  "title": "Request Validation Failed",
  "type": "https://photon.codes/docs/problems/validation-failed"
}

{
  "code": "INTERNAL_ERROR",
  "status": 500,
  "title": "Internal Server Error",
  "type": "https://photon.codes/docs/problems/internal-error"
}

{
  "code": "UPSTREAM_FAILURE",
  "status": 502,
  "title": "Upstream Service Failure",
  "type": "https://photon.codes/docs/problems/upstream-failure"
}

{
  "code": "IDEMPOTENCY_UNAVAILABLE",
  "status": 503,
  "title": "Idempotency Unavailable",
  "type": "https://photon.codes/docs/problems/idempotency-unavailable"
}

{
  "code": "REQUEST_TIMEOUT",
  "status": 504,
  "title": "Request Timeout",
  "type": "https://photon.codes/docs/problems/request-timeout"
}