Chilkat Online Tools

Objective-C / ShipEngine Walkthrough / Compare rates for a shipment

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#import <CkoHttp.h>
#import <CkoJsonObject.h>
#import <CkoHttpResponse.h>
#import <CkoStringBuilder.h>
#import <NSString.h>

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

CkoHttp *http = [[CkoHttp alloc] init];
BOOL success;

// Use this online tool to generate code from sample JSON: Generate Code to Create JSON

// The following JSON is sent in the request body.

// {
//   "rate_options": {
//     "carrier_ids": [
//       "{{stamps_com}}",
//       "{{fedex}}",
//       "{{ups}}"
//     ],
//     "service_codes": [
//       "usps_priority_mail",
//       "fedex_ground",
//       "ups_ground"
//     ]
//   },
//   "shipment_id": "{{shipment_id}}"
// }

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json UpdateString: @"rate_options.carrier_ids[0]" value: @"{{stamps_com}}"];
[json UpdateString: @"rate_options.carrier_ids[1]" value: @"{{fedex}}"];
[json UpdateString: @"rate_options.carrier_ids[2]" value: @"{{ups}}"];
[json UpdateString: @"rate_options.service_codes[0]" value: @"usps_priority_mail"];
[json UpdateString: @"rate_options.service_codes[1]" value: @"fedex_ground"];
[json UpdateString: @"rate_options.service_codes[2]" value: @"ups_ground"];
[json UpdateString: @"shipment_id" value: @"{{shipment_id}}"];

[http SetRequestHeader: @"API-Key" value: @"{{API_KEY}}"];
[http SetRequestHeader: @"Content-Type" value: @"application/json"];

CkoHttpResponse *resp = [http PostJson3: @"https://api.shipengine.com/v1/rates" contentType: @"application/json" json: json];
if (http.LastMethodSuccess == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

CkoStringBuilder *sbResponseBody = [[CkoStringBuilder alloc] init];
[resp GetBodySb: sbResponseBody];

CkoJsonObject *jResp = [[CkoJsonObject alloc] init];
[jResp LoadSb: sbResponseBody];
jResp.EmitCompact = NO;

NSLog(@"%@",@"Response Body:");
NSLog(@"%@",[jResp Emit]);

int respStatusCode = [resp.StatusCode intValue];
NSLog(@"%@%d",@"Response Status Code = ",respStatusCode);
if (respStatusCode >= 400) {
    NSLog(@"%@",@"Response Header:");
    NSLog(@"%@",resp.Header);
    NSLog(@"%@",@"Failed.");

    return;
}

// Sample JSON response:
// (Sample code for parsing the JSON response is shown below)

// {
//   "rate_response": {
//     "rates": [
//       {
//         "rate_id": "se-12444425",
//         "rate_type": "shipment",
//         "carrier_id": "se-121862",
//         "shipping_amount": {
//           "currency": "usd",
//           "amount": 65.58
//         },
//         "insurance_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "confirmation_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "other_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "zone": null,
//         "package_type": null,
//         "delivery_days": 4,
//         "guaranteed_service": true,
//         "estimated_delivery_date": "2019-09-23T23:00:00Z",
//         "carrier_delivery_days": "Monday 9/23 by 11:00 PM",
//         "ship_date": "2019-09-17T00:00:00Z",
//         "negotiated_rate": false,
//         "service_type": "UPSĀ® Ground",
//         "service_code": "ups_ground",
//         "trackable": true,
//         "carrier_code": "ups",
//         "carrier_nickname": "ShipEngine Test Account - UPS",
//         "carrier_friendly_name": "UPS",
//         "validation_status": "valid",
//         "warning_messages": [
//         ],
//         "error_messages": [
//         ]
//       },
//       {
//         "rate_id": "se-12444426",
//         "rate_type": "shipment",
//         "carrier_id": "se-121861",
//         "shipping_amount": {
//           "currency": "usd",
//           "amount": 98.14
//         },
//         "insurance_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "confirmation_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "other_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "zone": 7,
//         "package_type": "package",
//         "delivery_days": 2,
//         "guaranteed_service": false,
//         "estimated_delivery_date": "2019-09-19T00:00:00Z",
//         "carrier_delivery_days": "2",
//         "ship_date": "2019-09-17T00:00:00Z",
//         "negotiated_rate": false,
//         "service_type": "USPS Priority Mail",
//         "service_code": "usps_priority_mail",
//         "trackable": true,
//         "carrier_code": "stamps_com",
//         "carrier_nickname": "ShipEngine Test Account - Stamps.com",
//         "carrier_friendly_name": "Stamps.com",
//         "validation_status": "valid",
//         "warning_messages": [
//         ],
//         "error_messages": [
//         ]
//       },
//       {
//         "rate_id": "se-12444427",
//         "rate_type": "shipment",
//         "carrier_id": "se-121861",
//         "shipping_amount": {
//           "currency": "usd",
//           "amount": 12.72
//         },
//         "insurance_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "confirmation_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "other_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "zone": 7,
//         "package_type": "medium_flat_rate_box",
//         "delivery_days": 2,
//         "guaranteed_service": false,
//         "estimated_delivery_date": "2019-09-19T00:00:00Z",
//         "carrier_delivery_days": "2",
//         "ship_date": "2019-09-17T00:00:00Z",
//         "negotiated_rate": false,
//         "service_type": "USPS Priority Mail",
//         "service_code": "usps_priority_mail",
//         "trackable": true,
//         "carrier_code": "stamps_com",
//         "carrier_nickname": "ShipEngine Test Account - Stamps.com",
//         "carrier_friendly_name": "Stamps.com",
//         "validation_status": "valid",
//         "warning_messages": [
//         ],
//         "error_messages": [
//         ]
//       },
//       {
//         "rate_id": "se-12444428",
//         "rate_type": "shipment",
//         "carrier_id": "se-121861",
//         "shipping_amount": {
//           "currency": "usd",
//           "amount": 6.98
//         },
//         "insurance_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "confirmation_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "other_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "zone": 7,
//         "package_type": "small_flat_rate_box",
//         "delivery_days": 2,
//         "guaranteed_service": false,
//         "estimated_delivery_date": "2019-09-19T00:00:00Z",
//         "carrier_delivery_days": "2",
//         "ship_date": "2019-09-17T00:00:00Z",
//         "negotiated_rate": false,
//         "service_type": "USPS Priority Mail",
//         "service_code": "usps_priority_mail",
//         "trackable": true,
//         "carrier_code": "stamps_com",
//         "carrier_nickname": "ShipEngine Test Account - Stamps.com",
//         "carrier_friendly_name": "Stamps.com",
//         "validation_status": "valid",
//         "warning_messages": [
//         ],
//         "error_messages": [
//         ]
//       },
//       {
//         "rate_id": "se-12444429",
//         "rate_type": "shipment",
//         "carrier_id": "se-121861",
//         "shipping_amount": {
//           "currency": "usd",
//           "amount": 17.47
//         },
//         "insurance_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "confirmation_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "other_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "zone": 7,
//         "package_type": "large_flat_rate_box",
//         "delivery_days": 2,
//         "guaranteed_service": false,
//         "estimated_delivery_date": "2019-09-19T00:00:00Z",
//         "carrier_delivery_days": "2",
//         "ship_date": "2019-09-17T00:00:00Z",
//         "negotiated_rate": false,
//         "service_type": "USPS Priority Mail",
//         "service_code": "usps_priority_mail",
//         "trackable": true,
//         "carrier_code": "stamps_com",
//         "carrier_nickname": "ShipEngine Test Account - Stamps.com",
//         "carrier_friendly_name": "Stamps.com",
//         "validation_status": "valid",
//         "warning_messages": [
//         ],
//         "error_messages": [
//         ]
//       },
//       {
//         "rate_id": "se-12444430",
//         "rate_type": "shipment",
//         "carrier_id": "se-121861",
//         "shipping_amount": {
//           "currency": "usd",
//           "amount": 6.48
//         },
//         "insurance_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "confirmation_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "other_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "zone": 7,
//         "package_type": "flat_rate_envelope",
//         "delivery_days": 2,
//         "guaranteed_service": false,
//         "estimated_delivery_date": "2019-09-19T00:00:00Z",
//         "carrier_delivery_days": "2",
//         "ship_date": "2019-09-17T00:00:00Z",
//         "negotiated_rate": false,
//         "service_type": "USPS Priority Mail",
//         "service_code": "usps_priority_mail",
//         "trackable": true,
//         "carrier_code": "stamps_com",
//         "carrier_nickname": "ShipEngine Test Account - Stamps.com",
//         "carrier_friendly_name": "Stamps.com",
//         "validation_status": "has_warnings",
//         "warning_messages": [
//           "Heads up! You've included custom dimensions for a package type with a standardized size. For more accurate rates, consider removing the dimensions for this shipment."
//         ],
//         "error_messages": [
//         ]
//       },
//       {
//         "rate_id": "se-12444431",
//         "rate_type": "shipment",
//         "carrier_id": "se-121861",
//         "shipping_amount": {
//           "currency": "usd",
//           "amount": 7.03
//         },
//         "insurance_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "confirmation_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "other_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "zone": 7,
//         "package_type": "flat_rate_padded_envelope",
//         "delivery_days": 2,
//         "guaranteed_service": false,
//         "estimated_delivery_date": "2019-09-19T00:00:00Z",
//         "carrier_delivery_days": "2",
//         "ship_date": "2019-09-17T00:00:00Z",
//         "negotiated_rate": false,
//         "service_type": "USPS Priority Mail",
//         "service_code": "usps_priority_mail",
//         "trackable": true,
//         "carrier_code": "stamps_com",
//         "carrier_nickname": "ShipEngine Test Account - Stamps.com",
//         "carrier_friendly_name": "Stamps.com",
//         "validation_status": "valid",
//         "warning_messages": [
//         ],
//         "error_messages": [
//         ]
//       },
//       {
//         "rate_id": "se-12444432",
//         "rate_type": "shipment",
//         "carrier_id": "se-121861",
//         "shipping_amount": {
//           "currency": "usd",
//           "amount": 6.78
//         },
//         "insurance_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "confirmation_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "other_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "zone": 7,
//         "package_type": "flat_rate_legal_envelope",
//         "delivery_days": 2,
//         "guaranteed_service": false,
//         "estimated_delivery_date": "2019-09-19T00:00:00Z",
//         "carrier_delivery_days": "2",
//         "ship_date": "2019-09-17T00:00:00Z",
//         "negotiated_rate": false,
//         "service_type": "USPS Priority Mail",
//         "service_code": "usps_priority_mail",
//         "trackable": true,
//         "carrier_code": "stamps_com",
//         "carrier_nickname": "ShipEngine Test Account - Stamps.com",
//         "carrier_friendly_name": "Stamps.com",
//         "validation_status": "valid",
//         "warning_messages": [
//         ],
//         "error_messages": [
//         ]
//       },
//       {
//         "rate_id": "se-12444433",
//         "rate_type": "shipment",
//         "carrier_id": "se-121863",
//         "shipping_amount": {
//           "currency": "usd",
//           "amount": 58.37
//         },
//         "insurance_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "confirmation_amount": {
//           "currency": "usd",
//           "amount": 0
//         },
//         "other_amount": {
//           "currency": "usd",
//           "amount": 4.09
//         },
//         "zone": null,
//         "package_type": null,
//         "delivery_days": 3,
//         "guaranteed_service": false,
//         "estimated_delivery_date": "2019-09-20T00:00:00Z",
//         "carrier_delivery_days": "3",
//         "ship_date": "2019-09-17T00:00:00Z",
//         "negotiated_rate": false,
//         "service_type": "FedEx GroundĀ®",
//         "service_code": "fedex_ground",
//         "trackable": true,
//         "carrier_code": "fedex",
//         "carrier_nickname": "ShipEngine Test Account - FedEx",
//         "carrier_friendly_name": "FedEx",
//         "validation_status": "valid",
//         "warning_messages": [
//         ],
//         "error_messages": [
//         ]
//       }
//     ],
//     "invalid_rates": [
//     ],
//     "rate_request_id": "se-1426242",
//     "shipment_id": "se-4134271",
//     "created_at": "2019-09-17T18:33:10.7692662Z",
//     "status": "completed",
//     "errors": [
//     ]
//   },
//   "shipment_id": "se-4134271",
//   "carrier_id": null,
//   "service_code": null,
//   "external_shipment_id": null,
//   "ship_date": "2019-09-17T00:00:00Z",
//   "created_at": "2019-09-17T18:31:35.03Z",
//   "modified_at": "2019-09-17T18:31:35.03Z",
//   "shipment_status": "pending",
//   "ship_to": {
//     "name": "Amanda Miller",
//     "phone": null,
//     "company_name": null,
//     "address_line1": "525 S WINCHESTER BLVD",
//     "address_line2": "",
//     "address_line3": null,
//     "city_locality": "SAN JOSE",
//     "state_province": "CA",
//     "postal_code": "95128-2537",
//     "country_code": "US",
//     "address_residential_indicator": "no"
//   },
//   "ship_from": {
//     "name": "John Doe",
//     "phone": "512-555-5555",
//     "company_name": null,
//     "address_line1": "4009 Marathon Blvd",
//     "address_line2": null,
//     "address_line3": null,
//     "city_locality": "Austin",
//     "state_province": "TX",
//     "postal_code": "78756",
//     "country_code": "US",
//     "address_residential_indicator": "unknown"
//   },
//   "warehouse_id": null,
//   "return_to": {
//     "name": "John Doe",
//     "phone": "512-555-5555",
//     "company_name": null,
//     "address_line1": "4009 Marathon Blvd",
//     "address_line2": null,
//     "address_line3": null,
//     "city_locality": "Austin",
//     "state_province": "TX",
//     "postal_code": "78756",
//     "country_code": "US",
//     "address_residential_indicator": "unknown"
//   },
//   "confirmation": "none",
//   "customs": null,
//   "external_order_id": null,
//   "order_source_code": null,
//   "advanced_options": {
//     "bill_to_account": null,
//     "bill_to_country_code": null,
//     "bill_to_party": null,
//     "bill_to_postal_code": null,
//     "contains_alcohol": false,
//     "delivered_duty_paid": false,
//     "non_machinable": false,
//     "saturday_delivery": false,
//     "dry_ice": false,
//     "dry_ice_weight": null,
//     "freight_class": null,
//     "custom_field1": null,
//     "custom_field2": null,
//     "custom_field3": null
//   },
//   "insurance_provider": "none",
//   "tags": [
//   ],
//   "packages": [
//     {
//       "package_code": "package",
//       "weight": {
//         "value": 17,
//         "unit": "pound"
//       },
//       "dimensions": {
//         "unit": "inch",
//         "length": 36,
//         "width": 12,
//         "height": 24
//       },
//       "insured_value": {
//         "currency": "usd",
//         "amount": 0
//       },
//       "label_messages": {
//         "reference1": null,
//         "reference2": null,
//         "reference3": null
//       },
//       "external_package_id": null
//     }
//   ],
//   "total_weight": {
//     "value": 17,
//     "unit": "pound"
//   },
//   "items": [
//   ]
// }

// Sample code for parsing the JSON response...
// Use this online tool to generate parsing code from sample JSON: Generate JSON Parsing Code

NSString *rate_id = 0;
NSString *rate_type = 0;
NSString *v_Currency = 0;
NSString *Amount = 0;
NSString *insurance_amountCurrency = 0;
int insurance_amountAmount;
NSString *confirmation_amountCurrency = 0;
int confirmation_amountAmount;
NSString *other_amountCurrency = 0;
int other_amountAmount;
NSString *zone = 0;
NSString *package_type = 0;
int delivery_days;
BOOL guaranteed_service;
NSString *estimated_delivery_date = 0;
NSString *carrier_delivery_days = 0;
BOOL negotiated_rate;
NSString *service_type = 0;
BOOL trackable;
NSString *carrier_code = 0;
NSString *carrier_nickname = 0;
NSString *carrier_friendly_name = 0;
NSString *validation_status = 0;
int j;
int count_j;
NSString *strVal = 0;
NSString *package_code = 0;
int weightValue;
NSString *weightUnit = 0;
NSString *dimensionsUnit = 0;
int Length;
int Width;
int Height;
NSString *insured_valueCurrency = 0;
int insured_valueAmount;
NSString *Reference1 = 0;
NSString *Reference2 = 0;
NSString *Reference3 = 0;
NSString *external_package_id = 0;

NSString *Rate_request_id = [jResp StringOf: @"rate_response.rate_request_id"];
NSString *Shipment_id = [jResp StringOf: @"rate_response.shipment_id"];
NSString *Created_at = [jResp StringOf: @"rate_response.created_at"];
NSString *Status = [jResp StringOf: @"rate_response.status"];
NSString *shipment_id = [jResp StringOf: @"shipment_id"];
NSString *carrier_id = [jResp StringOf: @"carrier_id"];
NSString *service_code = [jResp StringOf: @"service_code"];
NSString *external_shipment_id = [jResp StringOf: @"external_shipment_id"];
NSString *ship_date = [jResp StringOf: @"ship_date"];
NSString *created_at = [jResp StringOf: @"created_at"];
NSString *modified_at = [jResp StringOf: @"modified_at"];
NSString *shipment_status = [jResp StringOf: @"shipment_status"];
NSString *Name = [jResp StringOf: @"ship_to.name"];
NSString *Phone = [jResp StringOf: @"ship_to.phone"];
NSString *Company_name = [jResp StringOf: @"ship_to.company_name"];
NSString *Address_line1 = [jResp StringOf: @"ship_to.address_line1"];
NSString *Address_line2 = [jResp StringOf: @"ship_to.address_line2"];
NSString *Address_line3 = [jResp StringOf: @"ship_to.address_line3"];
NSString *City_locality = [jResp StringOf: @"ship_to.city_locality"];
NSString *State_province = [jResp StringOf: @"ship_to.state_province"];
NSString *Postal_code = [jResp StringOf: @"ship_to.postal_code"];
NSString *Country_code = [jResp StringOf: @"ship_to.country_code"];
NSString *Address_residential_indicator = [jResp StringOf: @"ship_to.address_residential_indicator"];
NSString *ship_fromName = [jResp StringOf: @"ship_from.name"];
NSString *ship_fromPhone = [jResp StringOf: @"ship_from.phone"];
NSString *ship_fromCompany_name = [jResp StringOf: @"ship_from.company_name"];
NSString *ship_fromAddress_line1 = [jResp StringOf: @"ship_from.address_line1"];
NSString *ship_fromAddress_line2 = [jResp StringOf: @"ship_from.address_line2"];
NSString *ship_fromAddress_line3 = [jResp StringOf: @"ship_from.address_line3"];
NSString *ship_fromCity_locality = [jResp StringOf: @"ship_from.city_locality"];
NSString *ship_fromState_province = [jResp StringOf: @"ship_from.state_province"];
NSString *ship_fromPostal_code = [jResp StringOf: @"ship_from.postal_code"];
NSString *ship_fromCountry_code = [jResp StringOf: @"ship_from.country_code"];
NSString *ship_fromAddress_residential_indicator = [jResp StringOf: @"ship_from.address_residential_indicator"];
NSString *warehouse_id = [jResp StringOf: @"warehouse_id"];
NSString *return_toName = [jResp StringOf: @"return_to.name"];
NSString *return_toPhone = [jResp StringOf: @"return_to.phone"];
NSString *return_toCompany_name = [jResp StringOf: @"return_to.company_name"];
NSString *return_toAddress_line1 = [jResp StringOf: @"return_to.address_line1"];
NSString *return_toAddress_line2 = [jResp StringOf: @"return_to.address_line2"];
NSString *return_toAddress_line3 = [jResp StringOf: @"return_to.address_line3"];
NSString *return_toCity_locality = [jResp StringOf: @"return_to.city_locality"];
NSString *return_toState_province = [jResp StringOf: @"return_to.state_province"];
NSString *return_toPostal_code = [jResp StringOf: @"return_to.postal_code"];
NSString *return_toCountry_code = [jResp StringOf: @"return_to.country_code"];
NSString *return_toAddress_residential_indicator = [jResp StringOf: @"return_to.address_residential_indicator"];
NSString *confirmation = [jResp StringOf: @"confirmation"];
NSString *customs = [jResp StringOf: @"customs"];
NSString *external_order_id = [jResp StringOf: @"external_order_id"];
NSString *order_source_code = [jResp StringOf: @"order_source_code"];
NSString *Bill_to_account = [jResp StringOf: @"advanced_options.bill_to_account"];
NSString *Bill_to_country_code = [jResp StringOf: @"advanced_options.bill_to_country_code"];
NSString *Bill_to_party = [jResp StringOf: @"advanced_options.bill_to_party"];
NSString *Bill_to_postal_code = [jResp StringOf: @"advanced_options.bill_to_postal_code"];
BOOL Contains_alcohol = [jResp BoolOf: @"advanced_options.contains_alcohol"];
BOOL Delivered_duty_paid = [jResp BoolOf: @"advanced_options.delivered_duty_paid"];
BOOL Non_machinable = [jResp BoolOf: @"advanced_options.non_machinable"];
BOOL Saturday_delivery = [jResp BoolOf: @"advanced_options.saturday_delivery"];
BOOL Dry_ice = [jResp BoolOf: @"advanced_options.dry_ice"];
NSString *Dry_ice_weight = [jResp StringOf: @"advanced_options.dry_ice_weight"];
NSString *Freight_class = [jResp StringOf: @"advanced_options.freight_class"];
NSString *Custom_field1 = [jResp StringOf: @"advanced_options.custom_field1"];
NSString *Custom_field2 = [jResp StringOf: @"advanced_options.custom_field2"];
NSString *Custom_field3 = [jResp StringOf: @"advanced_options.custom_field3"];
NSString *insurance_provider = [jResp StringOf: @"insurance_provider"];
int Value = [[jResp IntOf: @"total_weight.value"] intValue];
NSString *Unit = [jResp StringOf: @"total_weight.unit"];
int i = 0;
int count_i = [[jResp SizeOfArray: @"rate_response.rates"] intValue];
while (i < count_i) {
    jResp.I = [NSNumber numberWithInt: i];
    rate_id = [jResp StringOf: @"rate_response.rates[i].rate_id"];
    rate_type = [jResp StringOf: @"rate_response.rates[i].rate_type"];
    carrier_id = [jResp StringOf: @"rate_response.rates[i].carrier_id"];
    v_Currency = [jResp StringOf: @"rate_response.rates[i].shipping_amount.currency"];
    Amount = [jResp StringOf: @"rate_response.rates[i].shipping_amount.amount"];
    insurance_amountCurrency = [jResp StringOf: @"rate_response.rates[i].insurance_amount.currency"];
    insurance_amountAmount = [[jResp IntOf: @"rate_response.rates[i].insurance_amount.amount"] intValue];
    confirmation_amountCurrency = [jResp StringOf: @"rate_response.rates[i].confirmation_amount.currency"];
    confirmation_amountAmount = [[jResp IntOf: @"rate_response.rates[i].confirmation_amount.amount"] intValue];
    other_amountCurrency = [jResp StringOf: @"rate_response.rates[i].other_amount.currency"];
    other_amountAmount = [[jResp IntOf: @"rate_response.rates[i].other_amount.amount"] intValue];
    zone = [jResp StringOf: @"rate_response.rates[i].zone"];
    package_type = [jResp StringOf: @"rate_response.rates[i].package_type"];
    delivery_days = [[jResp IntOf: @"rate_response.rates[i].delivery_days"] intValue];
    guaranteed_service = [jResp BoolOf: @"rate_response.rates[i].guaranteed_service"];
    estimated_delivery_date = [jResp StringOf: @"rate_response.rates[i].estimated_delivery_date"];
    carrier_delivery_days = [jResp StringOf: @"rate_response.rates[i].carrier_delivery_days"];
    ship_date = [jResp StringOf: @"rate_response.rates[i].ship_date"];
    negotiated_rate = [jResp BoolOf: @"rate_response.rates[i].negotiated_rate"];
    service_type = [jResp StringOf: @"rate_response.rates[i].service_type"];
    service_code = [jResp StringOf: @"rate_response.rates[i].service_code"];
    trackable = [jResp BoolOf: @"rate_response.rates[i].trackable"];
    carrier_code = [jResp StringOf: @"rate_response.rates[i].carrier_code"];
    carrier_nickname = [jResp StringOf: @"rate_response.rates[i].carrier_nickname"];
    carrier_friendly_name = [jResp StringOf: @"rate_response.rates[i].carrier_friendly_name"];
    validation_status = [jResp StringOf: @"rate_response.rates[i].validation_status"];
    j = 0;
    count_j = [[jResp SizeOfArray: @"rate_response.rates[i].warning_messages"] intValue];
    while (j < count_j) {
        jResp.J = [NSNumber numberWithInt: j];
        strVal = [jResp StringOf: @"rate_response.rates[i].warning_messages[j]"];
        j = j + 1;
    }

    j = 0;
    count_j = [[jResp SizeOfArray: @"rate_response.rates[i].error_messages"] intValue];
    while (j < count_j) {
        jResp.J = [NSNumber numberWithInt: j];
        j = j + 1;
    }

    i = i + 1;
}

i = 0;
count_i = [[jResp SizeOfArray: @"rate_response.invalid_rates"] intValue];
while (i < count_i) {
    jResp.I = [NSNumber numberWithInt: i];
    i = i + 1;
}

i = 0;
count_i = [[jResp SizeOfArray: @"rate_response.errors"] intValue];
while (i < count_i) {
    jResp.I = [NSNumber numberWithInt: i];
    i = i + 1;
}

i = 0;
count_i = [[jResp SizeOfArray: @"tags"] intValue];
while (i < count_i) {
    jResp.I = [NSNumber numberWithInt: i];
    i = i + 1;
}

i = 0;
count_i = [[jResp SizeOfArray: @"packages"] intValue];
while (i < count_i) {
    jResp.I = [NSNumber numberWithInt: i];
    package_code = [jResp StringOf: @"packages[i].package_code"];
    weightValue = [[jResp IntOf: @"packages[i].weight.value"] intValue];
    weightUnit = [jResp StringOf: @"packages[i].weight.unit"];
    dimensionsUnit = [jResp StringOf: @"packages[i].dimensions.unit"];
    Length = [[jResp IntOf: @"packages[i].dimensions.length"] intValue];
    Width = [[jResp IntOf: @"packages[i].dimensions.width"] intValue];
    Height = [[jResp IntOf: @"packages[i].dimensions.height"] intValue];
    insured_valueCurrency = [jResp StringOf: @"packages[i].insured_value.currency"];
    insured_valueAmount = [[jResp IntOf: @"packages[i].insured_value.amount"] intValue];
    Reference1 = [jResp StringOf: @"packages[i].label_messages.reference1"];
    Reference2 = [jResp StringOf: @"packages[i].label_messages.reference2"];
    Reference3 = [jResp StringOf: @"packages[i].label_messages.reference3"];
    external_package_id = [jResp StringOf: @"packages[i].external_package_id"];
    i = i + 1;
}

i = 0;
count_i = [[jResp SizeOfArray: @"items"] intValue];
while (i < count_i) {
    jResp.I = [NSNumber numberWithInt: i];
    i = i + 1;
}

Curl Command

curl -X POST
	-H "API-Key: {{API_KEY}}"
	-H "Content-Type: application/json"
	-d '{
	"rate_options": {
		"carrier_ids": [
			"{{stamps_com}}",
			"{{fedex}}",
			"{{ups}}"
		],
		"service_codes": [
			"usps_priority_mail",
			"fedex_ground",
			"ups_ground"
		]
	},
	"shipment_id": "{{shipment_id}}"
}'
https://api.shipengine.com/v1/rates

Postman Collection Item JSON

{
  "name": "Compare rates for a shipment",
  "event": [
    {
      "listen": "test",
      "script": {
        "exec": [
          "let response = pm.response.json();",
          "",
          "if (response.rate_response.rates.length > 0) {",
          "    pm.collectionVariables.set(\"rate_id\", response.rate_response.rates[0].rate_id);",
          "}"
        ],
        "type": "text/javascript"
      }
    }
  ],
  "request": {
    "method": "POST",
    "header": [
      {
        "key": "Content-Type",
        "name": "Content-Type",
        "type": "text",
        "value": "application/json"
      }
    ],
    "body": {
      "mode": "raw",
      "raw": "{\n\t\"rate_options\": {\n\t\t\"carrier_ids\": [\n\t\t\t\"{{stamps_com}}\",\n\t\t\t\"{{fedex}}\",\n\t\t\t\"{{ups}}\"\n\t\t],\n\t\t\"service_codes\": [\n\t\t\t\"usps_priority_mail\",\n\t\t\t\"fedex_ground\",\n\t\t\t\"ups_ground\"\n\t\t]\n\t},\n\t\"shipment_id\": \"{{shipment_id}}\"\n}"
    },
    "url": {
      "raw": "https://api.shipengine.com/v1/rates",
      "protocol": "https",
      "host": [
        "api",
        "shipengine",
        "com"
      ],
      "path": [
        "v1",
        "rates"
      ]
    },
    "description": "If you've already created a shipment in ShipEngine, then you can easily compare rates using the `shipment_id`."
  },
  "response": [
    {
      "name": "Compare rates for a shipment",
      "originalRequest": {
        "method": "POST",
        "header": [
          {
            "key": "Content-Type",
            "name": "Content-Type",
            "type": "text",
            "value": "application/json"
          }
        ],
        "body": {
          "mode": "raw",
          "raw": "{\n\t\"rate_options\": {\n\t\t\"carrier_ids\": [\n\t\t\t\"{{stamps_com}}\",\n\t\t\t\"{{fedex}}\",\n\t\t\t\"{{ups}}\"\n\t\t],\n\t\t\"service_codes\": [\n\t\t\t\"usps_priority_mail\",\n\t\t\t\"fedex_ground\",\n\t\t\t\"ups_ground\"\n\t\t]\n\t},\n\t\"shipment_id\": \"{{shipment_id}}\"\n}",
          "options": {
            "raw": {
              "language": "json"
            }
          }
        },
        "url": {
          "raw": "https://api.shipengine.com/v1/rates",
          "protocol": "https",
          "host": [
            "api",
            "shipengine",
            "com"
          ],
          "path": [
            "v1",
            "rates"
          ]
        }
      },
      "status": "OK",
      "code": 200,
      "_postman_previewlanguage": "json",
      "header": [
        {
          "key": "Date",
          "value": "Tue, 17 Sep 2019 18:33:10 GMT"
        },
        {
          "key": "Content-Type",
          "value": "application/json; charset=utf-8"
        },
        {
          "key": "Content-Length",
          "value": "13899"
        },
        {
          "key": "Connection",
          "value": "keep-alive"
        },
        {
          "key": "Access-Control-Allow-Origin",
          "value": "https://www.shipengine.com"
        },
        {
          "key": "Vary",
          "value": "Origin"
        },
        {
          "key": "x-shipengine-requestid",
          "value": "5824483d-bb0d-4dfd-bb6c-86f657a87119"
        }
      ],
      "cookie": [
      ],
      "body": "{\n    \"rate_response\": {\n        \"rates\": [\n            {\n                \"rate_id\": \"se-12444425\",\n                \"rate_type\": \"shipment\",\n                \"carrier_id\": \"se-121862\",\n                \"shipping_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 65.58\n                },\n                \"insurance_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"confirmation_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"other_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"zone\": null,\n                \"package_type\": null,\n                \"delivery_days\": 4,\n                \"guaranteed_service\": true,\n                \"estimated_delivery_date\": \"2019-09-23T23:00:00Z\",\n                \"carrier_delivery_days\": \"Monday 9/23 by 11:00 PM\",\n                \"ship_date\": \"2019-09-17T00:00:00Z\",\n                \"negotiated_rate\": false,\n                \"service_type\": \"UPS® Ground\",\n                \"service_code\": \"ups_ground\",\n                \"trackable\": true,\n                \"carrier_code\": \"ups\",\n                \"carrier_nickname\": \"ShipEngine Test Account - UPS\",\n                \"carrier_friendly_name\": \"UPS\",\n                \"validation_status\": \"valid\",\n                \"warning_messages\": [],\n                \"error_messages\": []\n            },\n            {\n                \"rate_id\": \"se-12444426\",\n                \"rate_type\": \"shipment\",\n                \"carrier_id\": \"se-121861\",\n                \"shipping_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 98.14\n                },\n                \"insurance_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"confirmation_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"other_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"zone\": 7,\n                \"package_type\": \"package\",\n                \"delivery_days\": 2,\n                \"guaranteed_service\": false,\n                \"estimated_delivery_date\": \"2019-09-19T00:00:00Z\",\n                \"carrier_delivery_days\": \"2\",\n                \"ship_date\": \"2019-09-17T00:00:00Z\",\n                \"negotiated_rate\": false,\n                \"service_type\": \"USPS Priority Mail\",\n                \"service_code\": \"usps_priority_mail\",\n                \"trackable\": true,\n                \"carrier_code\": \"stamps_com\",\n                \"carrier_nickname\": \"ShipEngine Test Account - Stamps.com\",\n                \"carrier_friendly_name\": \"Stamps.com\",\n                \"validation_status\": \"valid\",\n                \"warning_messages\": [],\n                \"error_messages\": []\n            },\n            {\n                \"rate_id\": \"se-12444427\",\n                \"rate_type\": \"shipment\",\n                \"carrier_id\": \"se-121861\",\n                \"shipping_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 12.72\n                },\n                \"insurance_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"confirmation_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"other_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"zone\": 7,\n                \"package_type\": \"medium_flat_rate_box\",\n                \"delivery_days\": 2,\n                \"guaranteed_service\": false,\n                \"estimated_delivery_date\": \"2019-09-19T00:00:00Z\",\n                \"carrier_delivery_days\": \"2\",\n                \"ship_date\": \"2019-09-17T00:00:00Z\",\n                \"negotiated_rate\": false,\n                \"service_type\": \"USPS Priority Mail\",\n                \"service_code\": \"usps_priority_mail\",\n                \"trackable\": true,\n                \"carrier_code\": \"stamps_com\",\n                \"carrier_nickname\": \"ShipEngine Test Account - Stamps.com\",\n                \"carrier_friendly_name\": \"Stamps.com\",\n                \"validation_status\": \"valid\",\n                \"warning_messages\": [],\n                \"error_messages\": []\n            },\n            {\n                \"rate_id\": \"se-12444428\",\n                \"rate_type\": \"shipment\",\n                \"carrier_id\": \"se-121861\",\n                \"shipping_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 6.98\n                },\n                \"insurance_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"confirmation_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"other_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"zone\": 7,\n                \"package_type\": \"small_flat_rate_box\",\n                \"delivery_days\": 2,\n                \"guaranteed_service\": false,\n                \"estimated_delivery_date\": \"2019-09-19T00:00:00Z\",\n                \"carrier_delivery_days\": \"2\",\n                \"ship_date\": \"2019-09-17T00:00:00Z\",\n                \"negotiated_rate\": false,\n                \"service_type\": \"USPS Priority Mail\",\n                \"service_code\": \"usps_priority_mail\",\n                \"trackable\": true,\n                \"carrier_code\": \"stamps_com\",\n                \"carrier_nickname\": \"ShipEngine Test Account - Stamps.com\",\n                \"carrier_friendly_name\": \"Stamps.com\",\n                \"validation_status\": \"valid\",\n                \"warning_messages\": [],\n                \"error_messages\": []\n            },\n            {\n                \"rate_id\": \"se-12444429\",\n                \"rate_type\": \"shipment\",\n                \"carrier_id\": \"se-121861\",\n                \"shipping_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 17.47\n                },\n                \"insurance_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"confirmation_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"other_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"zone\": 7,\n                \"package_type\": \"large_flat_rate_box\",\n                \"delivery_days\": 2,\n                \"guaranteed_service\": false,\n                \"estimated_delivery_date\": \"2019-09-19T00:00:00Z\",\n                \"carrier_delivery_days\": \"2\",\n                \"ship_date\": \"2019-09-17T00:00:00Z\",\n                \"negotiated_rate\": false,\n                \"service_type\": \"USPS Priority Mail\",\n                \"service_code\": \"usps_priority_mail\",\n                \"trackable\": true,\n                \"carrier_code\": \"stamps_com\",\n                \"carrier_nickname\": \"ShipEngine Test Account - Stamps.com\",\n                \"carrier_friendly_name\": \"Stamps.com\",\n                \"validation_status\": \"valid\",\n                \"warning_messages\": [],\n                \"error_messages\": []\n            },\n            {\n                \"rate_id\": \"se-12444430\",\n                \"rate_type\": \"shipment\",\n                \"carrier_id\": \"se-121861\",\n                \"shipping_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 6.48\n                },\n                \"insurance_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"confirmation_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"other_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"zone\": 7,\n                \"package_type\": \"flat_rate_envelope\",\n                \"delivery_days\": 2,\n                \"guaranteed_service\": false,\n                \"estimated_delivery_date\": \"2019-09-19T00:00:00Z\",\n                \"carrier_delivery_days\": \"2\",\n                \"ship_date\": \"2019-09-17T00:00:00Z\",\n                \"negotiated_rate\": false,\n                \"service_type\": \"USPS Priority Mail\",\n                \"service_code\": \"usps_priority_mail\",\n                \"trackable\": true,\n                \"carrier_code\": \"stamps_com\",\n                \"carrier_nickname\": \"ShipEngine Test Account - Stamps.com\",\n                \"carrier_friendly_name\": \"Stamps.com\",\n                \"validation_status\": \"has_warnings\",\n                \"warning_messages\": [\n                    \"Heads up! You've included custom dimensions for a package type with a standardized size. For more accurate rates, consider removing the dimensions for this shipment.\"\n                ],\n                \"error_messages\": []\n            },\n            {\n                \"rate_id\": \"se-12444431\",\n                \"rate_type\": \"shipment\",\n                \"carrier_id\": \"se-121861\",\n                \"shipping_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 7.03\n                },\n                \"insurance_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"confirmation_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"other_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"zone\": 7,\n                \"package_type\": \"flat_rate_padded_envelope\",\n                \"delivery_days\": 2,\n                \"guaranteed_service\": false,\n                \"estimated_delivery_date\": \"2019-09-19T00:00:00Z\",\n                \"carrier_delivery_days\": \"2\",\n                \"ship_date\": \"2019-09-17T00:00:00Z\",\n                \"negotiated_rate\": false,\n                \"service_type\": \"USPS Priority Mail\",\n                \"service_code\": \"usps_priority_mail\",\n                \"trackable\": true,\n                \"carrier_code\": \"stamps_com\",\n                \"carrier_nickname\": \"ShipEngine Test Account - Stamps.com\",\n                \"carrier_friendly_name\": \"Stamps.com\",\n                \"validation_status\": \"valid\",\n                \"warning_messages\": [],\n                \"error_messages\": []\n            },\n            {\n                \"rate_id\": \"se-12444432\",\n                \"rate_type\": \"shipment\",\n                \"carrier_id\": \"se-121861\",\n                \"shipping_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 6.78\n                },\n                \"insurance_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"confirmation_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"other_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"zone\": 7,\n                \"package_type\": \"flat_rate_legal_envelope\",\n                \"delivery_days\": 2,\n                \"guaranteed_service\": false,\n                \"estimated_delivery_date\": \"2019-09-19T00:00:00Z\",\n                \"carrier_delivery_days\": \"2\",\n                \"ship_date\": \"2019-09-17T00:00:00Z\",\n                \"negotiated_rate\": false,\n                \"service_type\": \"USPS Priority Mail\",\n                \"service_code\": \"usps_priority_mail\",\n                \"trackable\": true,\n                \"carrier_code\": \"stamps_com\",\n                \"carrier_nickname\": \"ShipEngine Test Account - Stamps.com\",\n                \"carrier_friendly_name\": \"Stamps.com\",\n                \"validation_status\": \"valid\",\n                \"warning_messages\": [],\n                \"error_messages\": []\n            },\n            {\n                \"rate_id\": \"se-12444433\",\n                \"rate_type\": \"shipment\",\n                \"carrier_id\": \"se-121863\",\n                \"shipping_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 58.37\n                },\n                \"insurance_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"confirmation_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 0\n                },\n                \"other_amount\": {\n                    \"currency\": \"usd\",\n                    \"amount\": 4.09\n                },\n                \"zone\": null,\n                \"package_type\": null,\n                \"delivery_days\": 3,\n                \"guaranteed_service\": false,\n                \"estimated_delivery_date\": \"2019-09-20T00:00:00Z\",\n                \"carrier_delivery_days\": \"3\",\n                \"ship_date\": \"2019-09-17T00:00:00Z\",\n                \"negotiated_rate\": false,\n                \"service_type\": \"FedEx Ground®\",\n                \"service_code\": \"fedex_ground\",\n                \"trackable\": true,\n                \"carrier_code\": \"fedex\",\n                \"carrier_nickname\": \"ShipEngine Test Account - FedEx\",\n                \"carrier_friendly_name\": \"FedEx\",\n                \"validation_status\": \"valid\",\n                \"warning_messages\": [],\n                \"error_messages\": []\n            }\n        ],\n        \"invalid_rates\": [],\n        \"rate_request_id\": \"se-1426242\",\n        \"shipment_id\": \"se-4134271\",\n        \"created_at\": \"2019-09-17T18:33:10.7692662Z\",\n        \"status\": \"completed\",\n        \"errors\": []\n    },\n    \"shipment_id\": \"se-4134271\",\n    \"carrier_id\": null,\n    \"service_code\": null,\n    \"external_shipment_id\": null,\n    \"ship_date\": \"2019-09-17T00:00:00Z\",\n    \"created_at\": \"2019-09-17T18:31:35.03Z\",\n    \"modified_at\": \"2019-09-17T18:31:35.03Z\",\n    \"shipment_status\": \"pending\",\n    \"ship_to\": {\n        \"name\": \"Amanda Miller\",\n        \"phone\": null,\n        \"company_name\": null,\n        \"address_line1\": \"525 S WINCHESTER BLVD\",\n        \"address_line2\": \"\",\n        \"address_line3\": null,\n        \"city_locality\": \"SAN JOSE\",\n        \"state_province\": \"CA\",\n        \"postal_code\": \"95128-2537\",\n        \"country_code\": \"US\",\n        \"address_residential_indicator\": \"no\"\n    },\n    \"ship_from\": {\n        \"name\": \"John Doe\",\n        \"phone\": \"512-555-5555\",\n        \"company_name\": null,\n        \"address_line1\": \"4009 Marathon Blvd\",\n        \"address_line2\": null,\n        \"address_line3\": null,\n        \"city_locality\": \"Austin\",\n        \"state_province\": \"TX\",\n        \"postal_code\": \"78756\",\n        \"country_code\": \"US\",\n        \"address_residential_indicator\": \"unknown\"\n    },\n    \"warehouse_id\": null,\n    \"return_to\": {\n        \"name\": \"John Doe\",\n        \"phone\": \"512-555-5555\",\n        \"company_name\": null,\n        \"address_line1\": \"4009 Marathon Blvd\",\n        \"address_line2\": null,\n        \"address_line3\": null,\n        \"city_locality\": \"Austin\",\n        \"state_province\": \"TX\",\n        \"postal_code\": \"78756\",\n        \"country_code\": \"US\",\n        \"address_residential_indicator\": \"unknown\"\n    },\n    \"confirmation\": \"none\",\n    \"customs\": null,\n    \"external_order_id\": null,\n    \"order_source_code\": null,\n    \"advanced_options\": {\n        \"bill_to_account\": null,\n        \"bill_to_country_code\": null,\n        \"bill_to_party\": null,\n        \"bill_to_postal_code\": null,\n        \"contains_alcohol\": false,\n        \"delivered_duty_paid\": false,\n        \"non_machinable\": false,\n        \"saturday_delivery\": false,\n        \"dry_ice\": false,\n        \"dry_ice_weight\": null,\n        \"freight_class\": null,\n        \"custom_field1\": null,\n        \"custom_field2\": null,\n        \"custom_field3\": null\n    },\n    \"insurance_provider\": \"none\",\n    \"tags\": [],\n    \"packages\": [\n        {\n            \"package_code\": \"package\",\n            \"weight\": {\n                \"value\": 17,\n                \"unit\": \"pound\"\n            },\n            \"dimensions\": {\n                \"unit\": \"inch\",\n                \"length\": 36,\n                \"width\": 12,\n                \"height\": 24\n            },\n            \"insured_value\": {\n                \"currency\": \"usd\",\n                \"amount\": 0\n            },\n            \"label_messages\": {\n                \"reference1\": null,\n                \"reference2\": null,\n                \"reference3\": null\n            },\n            \"external_package_id\": null\n        }\n    ],\n    \"total_weight\": {\n        \"value\": 17,\n        \"unit\": \"pound\"\n    },\n    \"items\": []\n}"
    }
  ]
}