curl --request GET \
  --url https://api.withflex.com/v1/checkout/sessions \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.withflex.com/v1/checkout/sessions"

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

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

print(response.text)

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

fetch('https://api.withflex.com/v1/checkout/sessions', 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.withflex.com/v1/checkout/sessions",
  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.withflex.com/v1/checkout/sessions"

	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.withflex.com/v1/checkout/sessions")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.withflex.com/v1/checkout/sessions")

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

{
  "checkout_sessions": [
    {
      "allow_promotion_codes": false,
      "amount_total": 2500,
      "amount_subtotal": 2500,
      "amount_received": 2500,
      "amount_refunded": 2500,
      "amount_disputed": 2500,
      "cancel_url": "https://example.com",
      "captures": [
        "fcap_01J9XR8M3K7VZ8N2YB4WJ6T0RA"
      ],
      "disputes": [
        "fdp_01J9XR8M3K7VZ8N2YB4WJ6T0RA"
      ],
      "capture_method": "automatic",
      "checkout_session_id": "fcs_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
      "client_reference_id": "example_value",
      "created_at": 2500,
      "customer": "fcus_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
      "defaults": {
        "customer_id": "fcus_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
        "email": "john.doe@example.com",
        "first_name": "John",
        "last_name": "Doe",
        "phone": "+14155550142"
      },
      "expires_at": 2500,
      "invoice": "fin_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
      "hsa_fsa_eligible": false,
      "letter_of_medical_necessity_required": false,
      "metadata": {
        "order_id": "8842",
        "channel": "shopify"
      },
      "mode": "payment",
      "origin": "shopify",
      "payment_intent": "fpi_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
      "payment_intents": [
        "fpi_01J9XR8M3K7VZ8N2YB4WJ6T0RA"
      ],
      "redirect_url": "https://example.com",
      "refunds": [
        "fre_01J9XR8M3K7VZ8N2YB4WJ6T0RA"
      ],
      "setup_intent": "fseti_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
      "shipping_options": {
        "shipping_rate_id": "fshr_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
        "shipping_amount": 2500,
        "display_name": "Example"
      },
      "shipping_address_collection": false,
      "shipping_details": {
        "shipping_address_id": "fsh_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
        "line1": "123 Main St",
        "line2": "Suite 100",
        "city": "San Francisco",
        "state": "CA",
        "postal_code": "94107",
        "country": "US"
      },
      "split_cart": "fsplit_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
      "status": "open",
      "success_url": "https://example.com",
      "fees": [
        {
          "fee_id": "ffee_1234567890",
          "amount": 2500,
          "name": "Example",
          "description": "Premium SPF 50 mineral sunscreen",
          "fee_type": "lmn_consultation",
          "applied": true,
          "waived_reason": "existing_letter"
        }
      ],
      "custom_text": {
        "after_submit": {
          "message": "Premium SPF 50 mineral sunscreen"
        },
        "shipping_address": {
          "message": "Premium SPF 50 mineral sunscreen"
        },
        "submit": {
          "message": "Premium SPF 50 mineral sunscreen"
        },
        "terms_of_service_acceptance": {
          "message": "Premium SPF 50 mineral sunscreen"
        },
        "terms_of_service_checkbox_required": true,
        "payment": {
          "message": "Premium SPF 50 mineral sunscreen"
        }
      },
      "subscription": "fsub_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
      "subscription_data": {
        "cancel_at": "2026-06-15T14:30:00Z",
        "trial_end": "string",
        "cancel_at_period_end": false,
        "trial_period_days": 0,
        "trial_settings": {
          "end_behavior": {
            "missing_payment_method": "cancel"
          }
        }
      },
      "tax_rate": {
        "amount": 2500
      },
      "tax_calculation_mode": "exclusive",
      "test_mode": false,
      "total_details": {
        "amount_discount": 2500,
        "amount_tax": 2500,
        "amount_shipping": 2500,
        "amount_iias": 2500,
        "amount_vision": 2500,
        "amount_prescription": 2500,
        "amount_service": 2500,
        "amount_fee": 2500,
        "breakdown": {
          "discounts": [
            {
              "discount": {
                "discount_id": "fdi_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
                "checkout_session": "fcs_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
                "customer": "fcus_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
                "subscription": "fsub_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
                "invoice": "fin_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
                "source": {
                  "coupon": "fcoup_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
                  "type": "coupon"
                },
                "promo_code": "fpromo_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
                "test_mode": false,
                "end": "string",
                "start": "string"
              }
            }
          ]
        }
      },
      "visit_type": "cbtSleep",
      "setup_future_use": "on_session",
      "payment_method_options": {
        "card": {
          "request_three_d_secure": "automatic"
        }
      },
      "next_action": {
        "type": "collect_letter_of_medical_necessity",
        "collect_letter_of_medical_necessity": {
          "url": "https://example.com"
        },
        "payment_failed": {
          "message": "Premium SPF 50 mineral sunscreen",
          "url": "https://example.com",
          "decline_code": "string",
          "error_code": "string"
        },
        "provide_second_payment_method": {
          "message": "Premium SPF 50 mineral sunscreen",
          "url": "https://example.com",
          "eligible_amount": 0,
          "ineligible_amount": 0
        },
        "provide_alternative_payment_method": {
          "message": "Premium SPF 50 mineral sunscreen",
          "url": "https://example.com"
        }
      },
      "partner": "facct_01J9XR8M3K7VZ8N2YB4WJ6T0RA",
      "platform_fees": {
        "letter_fee": {
          "amount": 2500,
          "type": "string",
          "status": "pending"
        }
      }
    }
  ]
}

{
  "code": "string",
  "detail": "string"
}

{
  "code": "string",
  "detail": "string"
}

{
  "code": "string",
  "detail": "string"
}

{
  "code": "string",
  "detail": "string"
}

{
  "detail": [
    {
      "loc": [
        "string"
      ],
      "msg": "string",
      "type": "string"
    }
  ]
}

{
  "code": "string",
  "detail": "string"
}