curl --request POST \
  --url https://api.hi-doctor.ai/v1/users/checkout/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "items": [
    {
      "treatment_id": "wegovy",
      "dosage": "0.5 mg"
    }
  ],
  "plan": "subscription"
}
'

import requests

url = "https://api.hi-doctor.ai/v1/users/checkout/"

payload = {
    "items": [
        {
            "treatment_id": "wegovy",
            "dosage": "0.5 mg"
        }
    ],
    "plan": "subscription"
}
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({items: [{treatment_id: 'wegovy', dosage: '0.5 mg'}], plan: 'subscription'})
};

fetch('https://api.hi-doctor.ai/v1/users/checkout/', 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.hi-doctor.ai/v1/users/checkout/",
  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([
    'items' => [
        [
                'treatment_id' => 'wegovy',
                'dosage' => '0.5 mg'
        ]
    ],
    'plan' => 'subscription'
  ]),
  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;
}

package main

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

func main() {

	url := "https://api.hi-doctor.ai/v1/users/checkout/"

	payload := strings.NewReader("{\n  \"items\": [\n    {\n      \"treatment_id\": \"wegovy\",\n      \"dosage\": \"0.5 mg\"\n    }\n  ],\n  \"plan\": \"subscription\"\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.hi-doctor.ai/v1/users/checkout/")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"items\": [\n    {\n      \"treatment_id\": \"wegovy\",\n      \"dosage\": \"0.5 mg\"\n    }\n  ],\n  \"plan\": \"subscription\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.hi-doctor.ai/v1/users/checkout/")

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  \"items\": [\n    {\n      \"treatment_id\": \"wegovy\",\n      \"dosage\": \"0.5 mg\"\n    }\n  ],\n  \"plan\": \"subscription\"\n}"

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

{
  "items": [
    {
      "treatment_id": "<string>",
      "dosage": "<string>",
      "quantity": 1
    }
  ],
  "plan": "one_off",
  "language": "EN",
  "return_path": "<string>",
  "session_id": "<string>",
  "meta_snapshot": {
    "consent": {
      "marketing": true
    },
    "fbp": "<string>",
    "fbc": "<string>"
  },
  "oai_snapshot": {
    "consent": {
      "marketing": true
    },
    "obref": "<string>",
    "oppref": "<string>",
    "checkout_event_id": "<string>"
  }
}

{
  "items": [
    {
      "dosage": [
        "This field is required."
      ]
    }
  ]
}

{
  "detail": "Given token not valid for any token type",
  "code": "token_not_valid",
  "messages": [
    {
      "token_class": "AccessToken",
      "token_type": "access",
      "message": "Token is invalid"
    }
  ]
}

{
  "code": "already_subscribed"
}