curl --request POST \
  --url https://api.craveup.com/api/v1/storefront/locations/{locationId}/carts/{cartId}/checkout-observers \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --header 'If-Match: <if-match>' \
  --header 'X-Cart-Token: <api-key>' \
  --data '{}'

import requests

url = "https://api.craveup.com/api/v1/storefront/locations/{locationId}/carts/{cartId}/checkout-observers"

payload = {}
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "If-Match": "<if-match>",
    "X-Cart-Token": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    'If-Match': '<if-match>',
    'X-Cart-Token': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({})
};

fetch('https://api.craveup.com/api/v1/storefront/locations/{locationId}/carts/{cartId}/checkout-observers', 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.craveup.com/api/v1/storefront/locations/{locationId}/carts/{cartId}/checkout-observers",
  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([
    
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "Idempotency-Key: <idempotency-key>",
    "If-Match: <if-match>",
    "X-Cart-Token: <api-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.craveup.com/api/v1/storefront/locations/{locationId}/carts/{cartId}/checkout-observers"

	payload := strings.NewReader("{}")

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

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	req.Header.Add("If-Match", "<if-match>")
	req.Header.Add("X-Cart-Token", "<api-key>")
	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.craveup.com/api/v1/storefront/locations/{locationId}/carts/{cartId}/checkout-observers")
  .header("Idempotency-Key", "<idempotency-key>")
  .header("If-Match", "<if-match>")
  .header("X-Cart-Token", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.craveup.com/api/v1/storefront/locations/{locationId}/carts/{cartId}/checkout-observers")

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

request = Net::HTTP::Post.new(url)
request["Idempotency-Key"] = '<idempotency-key>'
request["If-Match"] = '<if-match>'
request["X-Cart-Token"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{}"

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

{
  "checkoutUrl": "<string>",
  "expiresAt": "2023-11-07T05:31:56Z",
  "resultAccessToken": "<string>",
  "resultExpiresAt": "2023-11-07T05:31:56Z"
}

{
  "code": "VALIDATION_ERROR",
  "message": "<string>",
  "requestId": "<string>",
  "details": {}
}

{
  "code": "VALIDATION_ERROR",
  "message": "<string>",
  "requestId": "<string>",
  "details": {}
}

{
  "code": "VALIDATION_ERROR",
  "message": "<string>",
  "requestId": "<string>",
  "details": {}
}

{
  "code": "VALIDATION_ERROR",
  "message": "<string>",
  "requestId": "<string>",
  "details": {}
}

{
  "code": "CART_CONFLICT",
  "message": "<string>",
  "requestId": "<string>",
  "details": {
    "expectedRevision": 4503599627370495,
    "currentRevision": 4503599627370495,
    "currentEtag": "<string>",
    "cart": {
      "dietaryPreferences": {
        "preferences": [
          "vegetarian"
        ],
        "avoidAllergenIds": [
          "milk"
        ]
      },
      "foodSummary": {
        "unavailableLineIds": [
          "<string>"
        ],
        "totals": {
          "caloriesKcal": 1,
          "proteinGrams": 1,
          "carbohydrateGrams": 1,
          "fatGrams": 1,
          "fiberGrams": 1,
          "sugarGrams": 1,
          "saturatedFatGrams": 1,
          "sodiumMilligrams": 1
        },
        "completeness": "complete",
        "missing": [
          {
            "entityId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "nutrient": "caloriesKcal",
            "cartItemId": "<string>"
          }
        ],
        "warnings": [
          {
            "code": "DIETARY_CONFLICT",
            "entityId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "preferenceId": "vegetarian",
            "selectionPath": [
              "3c90c3cc-0d44-4b50-8888-8dd25736052a"
            ],
            "cartItemId": "<string>"
          }
        ]
      },
      "id": "<string>",
      "locationId": "<string>",
      "merchantId": "<string>",
      "status": "OPEN",
      "revision": 4503599627370495,
      "updatedAt": "2023-11-07T05:31:56Z",
      "expiresAt": "2023-11-07T05:31:56Z",
      "authorityContext": {
        "version": 2,
        "organizationId": "<string>",
        "locationId": "<string>",
        "profile": "crave_commerce",
        "cartId": "<string>",
        "cartRevision": 4503599627370495,
        "menuReleases": [
          {
            "menuId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "locationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "channel": "online",
            "menuReleaseId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "targetRevision": 4503599627370495,
            "contentHash": "<string>"
          }
        ],
        "commercePolicyRevision": 4503599627370495,
        "providerBindingRevision": 4503599627370495,
        "authority": {
          "operationalCatalog": "crave",
          "quote": "crave",
          "benefits": "crave_lip",
          "orderRouting": "crave",
          "fulfillment": "crave"
        }
      },
      "quoteFingerprint": "<string>",
      "quoteExpiresAt": "2023-11-07T05:31:56Z",
      "catalogRevalidation": {
        "required": true,
        "outcome": "ready",
        "reasonCodes": [
          "ITEM_SOLD_OUT"
        ],
        "changeSet": {
          "version": 2,
          "previous": {
            "cartRevision": 4503599627370495,
            "menuReleases": [
              {
                "menuId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
                "locationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
                "channel": "online",
                "menuReleaseId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
                "targetRevision": 4503599627370495,
                "contentHash": "<string>"
              }
            ],
            "commercePolicyRevision": 4503599627370495,
            "providerBindingRevision": 4503599627370495
          },
          "current": {
            "cartRevision": 4503599627370495,
            "menuReleases": [
              {
                "menuId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
                "locationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
                "channel": "online",
                "menuReleaseId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
                "targetRevision": 4503599627370495,
                "contentHash": "<string>"
              }
            ],
            "commercePolicyRevision": 4503599627370495,
            "providerBindingRevision": 4503599627370495
          },
          "reasonCodes": [
            "ITEM_SOLD_OUT"
          ],
          "changes": [
            {
              "reason": "ITEM_SOLD_OUT",
              "cartItemId": "<string>",
              "canonicalEntityId": "<string>",
              "path": "<string>",
              "before": "<string>",
              "after": "<string>",
              "permittedActions": [
                "ACCEPT_CHANGES"
              ]
            }
          ],
          "blocking": true,
          "reconfirmationRequired": true,
          "invalidatedEvidence": {
            "quote": true,
            "benefits": true,
            "paymentAuthorization": true
          }
        },
        "releaseEvidence": {
          "fingerprint": "<string>",
          "menuReleases": [
            {
              "menuId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
              "locationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
              "channel": "online",
              "menuReleaseId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
              "targetRevision": 4503599627370495,
              "contentHash": "<string>"
            }
          ],
          "evaluatedAt": "2023-11-07T05:31:56Z",
          "freshUntil": "2023-11-07T05:31:56Z"
        },
        "checkedAt": "2023-11-07T05:31:56Z",
        "acknowledgedAt": "2023-11-07T05:31:56Z"
      },
      "adjustmentEvidence": {
        "source": "public_promo",
        "referenceId": "<string>",
        "sourceRevision": 4503599627370495,
        "reservationRevision": 4503599627370495
      },
      "loyaltyAdjustment": {
        "allocations": [
          {
            "lineId": "<string>",
            "amountMinor": 4503599627370495,
            "quantity": 4503599627370495
          }
        ],
        "appliedCartRevision": 4503599627370495,
        "amountMinor": 4503599627370495,
        "currency": "usd",
        "effectType": "order_discount",
        "quotedCartRevision": 4503599627370495,
        "rewardId": "<string>",
        "source": "loyalty_reward"
      },
      "restaurantDisplayName": "<string>",
      "fulfilmentMethod": "takeout",
      "fulfillmentIdentifier": "<string>",
      "pickupType": "ASAP",
      "orderDate": "<string>",
      "orderTime": "<string>",
      "currency": "usd",
      "subTotal": "<string>",
      "subTotalFormatted": "<string>",
      "discountTotal": "<string>",
      "discountTotalFormatted": "<string>",
      "waiterTipTotal": "<string>",
      "waiterTipTotalFormatted": "<string>",
      "taxTotal": "<string>",
      "taxTotalFormatted": "<string>",
      "taxAndFeeTotal": "<string>",
      "taxAndFeeTotalFormatted": "<string>",
      "serviceFeeTotal": "<string>",
      "serviceFeeTotalFormatted": "<string>",
      "fulfillmentMethodFeeTotal": "<string>",
      "fulfillmentMethodFeeTotalFormatted": "<string>",
      "orderTotal": "<string>",
      "orderTotalFormatted": "<string>",
      "orderTotalWithServiceFee": "<string>",
      "orderTotalWithServiceFeeFormatted": "<string>",
      "orderTotalWithServiceFeeAmount": 4503599627370495,
      "enterpriseFeeTotal": "<string>",
      "enterpriseFeeTotalFormatted": "<string>",
      "subTotalWithoutDiscount": "<string>",
      "subTotalWithoutDiscountFormatted": "<string>",
      "statementDescriptor": "<string>",
      "totalQuantity": 4503599627370495,
      "items": [
        {
          "food": {
            "state": "configured",
            "result": {
              "source": {
                "menuId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
                "locationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
                "channel": "online",
                "kind": "released",
                "menuReleaseId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
              },
              "contributions": [
                {
                  "entityId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
                  "selectionPath": [
                    "3c90c3cc-0d44-4b50-8888-8dd25736052a"
                  ],
                  "fraction": {
                    "numerator": 1,
                    "denominator": 1
                  },
                  "provenance": {
                    "kind": "entered"
                  },
                  "nutrients": {
                    "caloriesKcal": 1,
                    "proteinGrams": 1,
                    "carbohydrateGrams": 1,
                    "fatGrams": 1,
                    "fiberGrams": 1,
                    "sugarGrams": 1,
                    "saturatedFatGrams": 1,
                    "sodiumMilligrams": 1
                  }
                }
              ],
              "serving": {
                "label": "<string>",
                "grams": 1
              },
              "quantity": {
                "unit": "serving",
                "count": 5000
              },
              "trayYield": {
                "servingsPerTray": 1
              },
              "perServing": {
                "caloriesKcal": 1,
                "proteinGrams": 1,
                "carbohydrateGrams": 1,
                "fatGrams": 1,
                "fiberGrams": 1,
                "sugarGrams": 1,
                "saturatedFatGrams": 1,
                "sodiumMilligrams": 1
              },
              "perTray": {
                "caloriesKcal": 1,
                "proteinGrams": 1,
                "carbohydrateGrams": 1,
                "fatGrams": 1,
                "fiberGrams": 1,
                "sugarGrams": 1,
                "saturatedFatGrams": 1,
                "sodiumMilligrams": 1
              },
              "lineTotal": {
                "caloriesKcal": 1,
                "proteinGrams": 1,
                "carbohydrateGrams": 1,
                "fatGrams": 1,
                "fiberGrams": 1,
                "sugarGrams": 1,
                "saturatedFatGrams": 1,
                "sodiumMilligrams": 1
              },
              "completeness": "complete",
              "missing": [
                {
                  "entityId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
                  "nutrient": "caloriesKcal"
                }
              ],
              "warnings": [
                {
                  "code": "DIETARY_CONFLICT",
                  "entityId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
                  "preferenceId": "vegetarian",
                  "selectionPath": [
                    "3c90c3cc-0d44-4b50-8888-8dd25736052a"
                  ]
                }
              ]
            }
          },
          "id": "<string>",
          "productId": "<string>",
          "name": "<string>",
          "description": "<string>",
          "imageUrl": "<string>",
          "price": "<string>",
          "priceFormatted": "<string>",
          "quantity": 4503599627370495,
          "total": "<string>",
          "totalFormatted": "<string>",
          "discount": "<string>",
          "discountFormatted": "<string>",
          "categoryId": "<string>",
          "itemUnavailableAction": "remove_item",
          "selections": [
            {
              "id": "<string>",
              "name": "<string>",
              "rule": {
                "min": 4503599627370495,
                "max": 4503599627370495
              },
              "items": [
                {
                  "id": "<string>",
                  "name": "<string>",
                  "price": "<string>",
                  "priceFormatted": "<string>",
                  "quantity": 50,
                  "children": "<array>"
                }
              ]
            }
          ],
          "specialInstructions": "<string>",
          "product": {
            "id": "<string>",
            "name": "<string>",
            "price": "<string>"
          }
        }
      ],
      "fees": {
        "enterpriseFeeRate": "<string>",
        "enterpriseFeeFix": "<string>",
        "serviceFeeRate": "<string>",
        "serviceFeeFix": "<string>",
        "taxRate": "<string>",
        "tipRate": "<string>",
        "fulfillmentMethodFeeFix": "<string>",
        "fulfillmentMethodFeeRate": "<string>"
      },
      "catering": null,
      "lockedAt": "2023-11-07T05:31:56Z",
      "metadata": {},
      "courierTipTotal": "<string>",
      "courierTipTotalFormatted": "<string>",
      "discountCode": "<string>",
      "deliveryInfo": {
        "addressString": "<string>",
        "addressData": {
          "street": "<string>",
          "city": "<string>",
          "state": "<string>",
          "zipCode": "<string>",
          "country": "United States",
          "lat": 0,
          "lng": 0,
          "streetOptional": ""
        }
      },
      "deliveryQuote": {
        "provider": "DOORDASH_DRIVE",
        "externalDeliveryId": "<string>",
        "quoteFingerprint": "<string>",
        "feeMinor": 4503599627370495,
        "taxMinor": 4503599627370495,
        "courierTipMinor": 4503599627370495,
        "currency": "<string>",
        "quotedAt": "2023-11-07T05:31:56Z",
        "expiresAt": "2023-11-07T05:31:56Z",
        "pickupEstimatedAt": "2023-11-07T05:31:56Z",
        "dropoffEstimatedAt": "2023-11-07T05:31:56Z",
        "status": "<string>",
        "trackingUrl": "<string>",
        "supportReference": "<string>"
      },
      "tableServiceInfo": {
        "tableNumber": "<string>"
      },
      "roomServiceInfo": {
        "lastName": "<string>",
        "roomNumber": "<string>"
      }
    }
  }
}

{
  "code": "VALIDATION_ERROR",
  "message": "<string>",
  "requestId": "<string>",
  "details": {}
}

{
  "code": "VALIDATION_ERROR",
  "message": "<string>",
  "requestId": "<string>",
  "details": {}
}

{
  "code": "VALIDATION_ERROR",
  "message": "<string>",
  "requestId": "<string>",
  "details": {}
}

{
  "code": "VALIDATION_ERROR",
  "message": "<string>",
  "requestId": "<string>",
  "details": {}
}