Magento 2 - Create order using REST API

gistfile1.txt

Get a single product  
    curl -g -X GET "$base_url/index.php/rest/V1/products/24-MB05/" \
    -H "Authorization: Bearer $token" 
Create cart
    curl -g -X POST "$base_url/index.php/rest/V1/guest-carts/" \
    -H "Authorization: Bearer $token" 
Get Cart
    curl -g -X GET "$base_url/index.php/rest/V1/guest-carts/56241bf6bc084cd7589426c8754fc9c5" \
    -H "Authorization: Bearer $token" 
Add Product To Cart
    curl -g -X POST "$base_url/index.php/rest/V1/guest-carts/56241bf6bc084cd7589426c8754fc9c5/items" \
  -H "Authorization: Bearer $token" \
  -H "Content-Type:application/json" \
  -d '{ "cartItem": { "quote_id": "56241bf6bc084cd7589426c8754fc9c5", "sku": "24-MB05", "qty": 1 } }'
  
 Add shipping information
   curl -g -X POST "$base_url/index.php/rest/V1/guest-carts/56241bf6bc084cd7589426c8754fc9c5/shipping-information" \
    -H "Authorization: Bearer $token" \
    -H "Content-Type:application/json" \
     -d '
{
    "addressInformation": {
        "shippingAddress": {
            "region": "MH",
            "region_id": 0,
            "country_id": "IN",
            "street": [
                "Chakala,Kalyan (e)"
            ],
            "company": "abc",
            "telephone": "1111111",
            "postcode": "12223",
            "city": "Mumbai",
            "firstname": "Sameer",
            "lastname": "Sawant",
            "email": "paul@qooar.com",
            "prefix": "address_",
            "region_code": "MH",
            "sameAsBilling": 1
        },
        "billingAddress": {
            "region": "MH",
            "region_id": 0,
            "country_id": "IN",
            "street": [
                "Chakala,Kalyan (e)"
            ],
            "company": "abc",
            "telephone": "1111111",
            "postcode": "12223",
            "city": "Mumbai",
            "firstname": "Sameer",
            "lastname": "Sawant",
            "email": "paul@qooar.com",
            "prefix": "address_",
            "region_code": "MH"
        },
        "shipping_method_code": "flatrate",
        "shipping_carrier_code": "flatrate"
    }
}
 '
Get Payment Method
  curl -g -X GET "$base_url/index.php/rest/V1/guest-carts/56241bf6bc084cd7589426c8754fc9c5/payment-information" \
    -H "Authorization: Bearer $token" 
Place Order    
  curl -g -X PUT "$base_url/index.php/rest/V1/guest-carts/56241bf6bc084cd7589426c8754fc9c5/order" \
    -H "Authorization: Bearer $token" \
    -H "Content-Type:application/json" \
         -d '
    {
        "method": {
            "method": "checkmo"
        }
    }