Chilkat Online Tools

Swift / ShipEngine Walkthrough / Compare rates

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

    let http = CkoHttp()
    var success: Bool

    // 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": {
    //     "ship_from": {
    //       "name": "John Doe",
    //       "company_name": "Example Corp.",
    //       "address_line1": "4009 Marathon Blvd",
    //       "city_locality": "Austin",
    //       "state_province": "TX",
    //       "postal_code": "78756",
    //       "country_code": "US",
    //       "phone": "512-555-5555"
    //     },
    //     "ship_to": {
    //       "name": "Amanda Miller",
    //       "address_line1": "525 S Winchester Blvd",
    //       "city_locality": "San Jose",
    //       "state_province": "CA",
    //       "postal_code": "95128",
    //       "country_code": "US"
    //     },
    //     "packages": [
    //       {
    //         "weight": {
    //           "value": 17,
    //           "unit": "pound"
    //         },
    //         "dimensions": {
    //           "length": 36,
    //           "width": 12,
    //           "height": 24,
    //           "unit": "inch"
    //         }
    //       }
    //     ]
    //   }
    // }

    let json = CkoJsonObject()
    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.ship_from.name", value: "John Doe")
    json.UpdateString("shipment.ship_from.company_name", value: "Example Corp.")
    json.UpdateString("shipment.ship_from.address_line1", value: "4009 Marathon Blvd")
    json.UpdateString("shipment.ship_from.city_locality", value: "Austin")
    json.UpdateString("shipment.ship_from.state_province", value: "TX")
    json.UpdateString("shipment.ship_from.postal_code", value: "78756")
    json.UpdateString("shipment.ship_from.country_code", value: "US")
    json.UpdateString("shipment.ship_from.phone", value: "512-555-5555")
    json.UpdateString("shipment.ship_to.name", value: "Amanda Miller")
    json.UpdateString("shipment.ship_to.address_line1", value: "525 S Winchester Blvd")
    json.UpdateString("shipment.ship_to.city_locality", value: "San Jose")
    json.UpdateString("shipment.ship_to.state_province", value: "CA")
    json.UpdateString("shipment.ship_to.postal_code", value: "95128")
    json.UpdateString("shipment.ship_to.country_code", value: "US")
    json.UpdateInt("shipment.packages[0].weight.value", value: 17)
    json.UpdateString("shipment.packages[0].weight.unit", value: "pound")
    json.UpdateInt("shipment.packages[0].dimensions.length", value: 36)
    json.UpdateInt("shipment.packages[0].dimensions.width", value: 12)
    json.UpdateInt("shipment.packages[0].dimensions.height", value: 24)
    json.UpdateString("shipment.packages[0].dimensions.unit", value: "inch")

    http.SetRequestHeader("API-Key", value: "{{API_KEY}}")
    http.SetRequestHeader("Content-Type", value: "application/json")

    var resp: CkoHttpResponse? = http.PostJson3("https://api.shipengine.com/v1/rates", contentType: "application/json", json: json)
    if http.LastMethodSuccess == false {
        print("\(http.LastErrorText)")
        return
    }

    let sbResponseBody = CkoStringBuilder()
    resp!.GetBodySb(sbResponseBody)

    let jResp = CkoJsonObject()
    jResp.LoadSb(sbResponseBody)
    jResp.EmitCompact = false

    print("Response Body:")
    print("\(jResp.Emit())")

    var respStatusCode: Int = resp!.StatusCode.intValue
    print("Response Status Code = \(respStatusCode)")
    if respStatusCode >= 400 {
        print("Response Header:")
        print("\(resp!.Header)")
        print("Failed.")
        resp = nil
        return
    }

    resp = nil

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

    // {
    //   "rate_response": {
    //     "rates": [
    //       {
    //         "rate_id": "se-12443424",
    //         "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-12443425",
    //         "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-12443426",
    //         "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-12443427",
    //         "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-12443428",
    //         "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-12443429",
    //         "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-12443430",
    //         "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-12443431",
    //         "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-12443432",
    //         "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-1426058",
    //     "shipment_id": "se-4133871",
    //     "created_at": "2019-09-17T18:22:40.010591Z",
    //     "status": "completed",
    //     "errors": [
    //     ]
    //   },
    //   "shipment_id": "se-4133871",
    //   "carrier_id": null,
    //   "service_code": null,
    //   "external_shipment_id": null,
    //   "ship_date": "2019-09-17T00:00:00Z",
    //   "created_at": "2019-09-17T18:22:39.317Z",
    //   "modified_at": "2019-09-17T18:22:39.317Z",
    //   "shipment_status": "pending",
    //   "ship_to": {
    //     "name": "Amanda Miller",
    //     "phone": null,
    //     "company_name": null,
    //     "address_line1": "525 S Winchester Blvd",
    //     "address_line2": null,
    //     "address_line3": null,
    //     "city_locality": "San Jose",
    //     "state_province": "CA",
    //     "postal_code": "95128",
    //     "country_code": "US",
    //     "address_residential_indicator": "unknown"
    //   },
    //   "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

    var rate_id: String?
    var rate_type: String?
    var v_Currency: String?
    var Amount: String?
    var insurance_amountCurrency: String?
    var insurance_amountAmount: Int
    var confirmation_amountCurrency: String?
    var confirmation_amountAmount: Int
    var other_amountCurrency: String?
    var other_amountAmount: Int
    var zone: String?
    var package_type: String?
    var delivery_days: Int
    var guaranteed_service: Bool
    var estimated_delivery_date: String?
    var carrier_delivery_days: String?
    var negotiated_rate: Bool
    var service_type: String?
    var trackable: Bool
    var carrier_code: String?
    var carrier_nickname: String?
    var carrier_friendly_name: String?
    var validation_status: String?
    var j: Int
    var count_j: Int
    var strVal: String?
    var package_code: String?
    var weightValue: Int
    var weightUnit: String?
    var dimensionsUnit: String?
    var Length: Int
    var Width: Int
    var Height: Int
    var insured_valueCurrency: String?
    var insured_valueAmount: Int
    var Reference1: String?
    var Reference2: String?
    var Reference3: String?
    var external_package_id: String?

    var Rate_request_id: String? = jResp.StringOf("rate_response.rate_request_id")
    var Shipment_id: String? = jResp.StringOf("rate_response.shipment_id")
    var Created_at: String? = jResp.StringOf("rate_response.created_at")
    var Status: String? = jResp.StringOf("rate_response.status")
    var shipment_id: String? = jResp.StringOf("shipment_id")
    var carrier_id: String? = jResp.StringOf("carrier_id")
    var service_code: String? = jResp.StringOf("service_code")
    var external_shipment_id: String? = jResp.StringOf("external_shipment_id")
    var ship_date: String? = jResp.StringOf("ship_date")
    var created_at: String? = jResp.StringOf("created_at")
    var modified_at: String? = jResp.StringOf("modified_at")
    var shipment_status: String? = jResp.StringOf("shipment_status")
    var Name: String? = jResp.StringOf("ship_to.name")
    var Phone: String? = jResp.StringOf("ship_to.phone")
    var Company_name: String? = jResp.StringOf("ship_to.company_name")
    var Address_line1: String? = jResp.StringOf("ship_to.address_line1")
    var Address_line2: String? = jResp.StringOf("ship_to.address_line2")
    var Address_line3: String? = jResp.StringOf("ship_to.address_line3")
    var City_locality: String? = jResp.StringOf("ship_to.city_locality")
    var State_province: String? = jResp.StringOf("ship_to.state_province")
    var Postal_code: String? = jResp.StringOf("ship_to.postal_code")
    var Country_code: String? = jResp.StringOf("ship_to.country_code")
    var Address_residential_indicator: String? = jResp.StringOf("ship_to.address_residential_indicator")
    var ship_fromName: String? = jResp.StringOf("ship_from.name")
    var ship_fromPhone: String? = jResp.StringOf("ship_from.phone")
    var ship_fromCompany_name: String? = jResp.StringOf("ship_from.company_name")
    var ship_fromAddress_line1: String? = jResp.StringOf("ship_from.address_line1")
    var ship_fromAddress_line2: String? = jResp.StringOf("ship_from.address_line2")
    var ship_fromAddress_line3: String? = jResp.StringOf("ship_from.address_line3")
    var ship_fromCity_locality: String? = jResp.StringOf("ship_from.city_locality")
    var ship_fromState_province: String? = jResp.StringOf("ship_from.state_province")
    var ship_fromPostal_code: String? = jResp.StringOf("ship_from.postal_code")
    var ship_fromCountry_code: String? = jResp.StringOf("ship_from.country_code")
    var ship_fromAddress_residential_indicator: String? = jResp.StringOf("ship_from.address_residential_indicator")
    var warehouse_id: String? = jResp.StringOf("warehouse_id")
    var return_toName: String? = jResp.StringOf("return_to.name")
    var return_toPhone: String? = jResp.StringOf("return_to.phone")
    var return_toCompany_name: String? = jResp.StringOf("return_to.company_name")
    var return_toAddress_line1: String? = jResp.StringOf("return_to.address_line1")
    var return_toAddress_line2: String? = jResp.StringOf("return_to.address_line2")
    var return_toAddress_line3: String? = jResp.StringOf("return_to.address_line3")
    var return_toCity_locality: String? = jResp.StringOf("return_to.city_locality")
    var return_toState_province: String? = jResp.StringOf("return_to.state_province")
    var return_toPostal_code: String? = jResp.StringOf("return_to.postal_code")
    var return_toCountry_code: String? = jResp.StringOf("return_to.country_code")
    var return_toAddress_residential_indicator: String? = jResp.StringOf("return_to.address_residential_indicator")
    var confirmation: String? = jResp.StringOf("confirmation")
    var customs: String? = jResp.StringOf("customs")
    var external_order_id: String? = jResp.StringOf("external_order_id")
    var order_source_code: String? = jResp.StringOf("order_source_code")
    var Bill_to_account: String? = jResp.StringOf("advanced_options.bill_to_account")
    var Bill_to_country_code: String? = jResp.StringOf("advanced_options.bill_to_country_code")
    var Bill_to_party: String? = jResp.StringOf("advanced_options.bill_to_party")
    var Bill_to_postal_code: String? = jResp.StringOf("advanced_options.bill_to_postal_code")
    var Contains_alcohol: Bool = jResp.BoolOf("advanced_options.contains_alcohol")
    var Delivered_duty_paid: Bool = jResp.BoolOf("advanced_options.delivered_duty_paid")
    var Non_machinable: Bool = jResp.BoolOf("advanced_options.non_machinable")
    var Saturday_delivery: Bool = jResp.BoolOf("advanced_options.saturday_delivery")
    var Dry_ice: Bool = jResp.BoolOf("advanced_options.dry_ice")
    var Dry_ice_weight: String? = jResp.StringOf("advanced_options.dry_ice_weight")
    var Freight_class: String? = jResp.StringOf("advanced_options.freight_class")
    var Custom_field1: String? = jResp.StringOf("advanced_options.custom_field1")
    var Custom_field2: String? = jResp.StringOf("advanced_options.custom_field2")
    var Custom_field3: String? = jResp.StringOf("advanced_options.custom_field3")
    var insurance_provider: String? = jResp.StringOf("insurance_provider")
    var Value: Int = jResp.IntOf("total_weight.value").intValue
    var Unit: String? = jResp.StringOf("total_weight.unit")
    var i: Int = 0
    var count_i: Int = jResp.SizeOfArray("rate_response.rates").intValue
    while i < count_i {
        jResp.I = 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 = 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 = j
            j = j + 1
        }

        i = i + 1
    }

    i = 0
    count_i = jResp.SizeOfArray("rate_response.invalid_rates").intValue
    while i < count_i {
        jResp.I = i
        i = i + 1
    }

    i = 0
    count_i = jResp.SizeOfArray("rate_response.errors").intValue
    while i < count_i {
        jResp.I = i
        i = i + 1
    }

    i = 0
    count_i = jResp.SizeOfArray("tags").intValue
    while i < count_i {
        jResp.I = i
        i = i + 1
    }

    i = 0
    count_i = jResp.SizeOfArray("packages").intValue
    while i < count_i {
        jResp.I = 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 = 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": {
		"ship_from": {
			"name": "John Doe",
			"company_name": "Example Corp.",
			"address_line1": "4009 Marathon Blvd",
			"city_locality": "Austin",
			"state_province": "TX",
			"postal_code": "78756",
			"country_code": "US",
			"phone": "512-555-5555"
		},
		"ship_to": {
			"name": "Amanda Miller",
			"address_line1": "525 S Winchester Blvd",
			"city_locality": "San Jose",
			"state_province": "CA",
			"postal_code": "95128",
			"country_code": "US"
		},
		"packages": [
			{
				"weight": {
					"value": 17,
					"unit": "pound"
				},
				"dimensions": {
					"length": 36,
					"width": 12,
					"height": 24,
					"unit": "inch"
				}
			}
		]
	}
}'
https://api.shipengine.com/v1/rates

Postman Collection Item JSON

{
  "name": "Compare rates",
  "event": [
    {
      "listen": "test",
      "script": {
        "exec": [
          "let response = pm.response.json();",
          "",
          "if (response.rate_response.rates.length > 0) {",
          "    pm.collectionVariables.set(\"shipment_id\", response.shipment_id);",
          "    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\": {\n\t\t\"ship_from\": {\n\t\t\t\"name\": \"John Doe\",\n\t\t\t\"company_name\": \"Example Corp.\",\n\t\t\t\"address_line1\": \"4009 Marathon Blvd\",\n\t\t\t\"city_locality\": \"Austin\",\n\t\t\t\"state_province\": \"TX\",\n\t\t\t\"postal_code\": \"78756\",\n\t\t\t\"country_code\": \"US\",\n\t\t\t\"phone\": \"512-555-5555\"\n\t\t},\n\t\t\"ship_to\": {\n\t\t\t\"name\": \"Amanda Miller\",\n\t\t\t\"address_line1\": \"525 S Winchester Blvd\",\n\t\t\t\"city_locality\": \"San Jose\",\n\t\t\t\"state_province\": \"CA\",\n\t\t\t\"postal_code\": \"95128\",\n\t\t\t\"country_code\": \"US\"\n\t\t},\n\t\t\"packages\": [\n\t\t\t{\n\t\t\t\t\"weight\": {\n\t\t\t\t\t\"value\": 17,\n\t\t\t\t\t\"unit\": \"pound\"\n\t\t\t\t},\n\t\t\t\t\"dimensions\": {\n\t\t\t\t\t\"length\": 36,\n\t\t\t\t\t\"width\": 12,\n\t\t\t\t\t\"height\": 24,\n\t\t\t\t\t\"unit\": \"inch\"\n\t\t\t\t}\n\t\t\t}\n\t\t]\n\t}\n}"
    },
    "url": {
      "raw": "https://api.shipengine.com/v1/rates",
      "protocol": "https",
      "host": [
        "api",
        "shipengine",
        "com"
      ],
      "path": [
        "v1",
        "rates"
      ]
    },
    "description": "To compare rates across multiple carriers, provide the shipment details and the list of carriers that you want rates for."
  },
  "response": [
    {
      "name": "Compare rates",
      "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\": {\n\t\t\"ship_from\": {\n\t\t\t\"name\": \"John Doe\",\n\t\t\t\"address_line1\": \"4009 Marathon Blvd\",\n\t\t\t\"city_locality\": \"Austin\",\n\t\t\t\"state_province\": \"TX\",\n\t\t\t\"postal_code\": \"78756\",\n\t\t\t\"country_code\": \"US\",\n\t\t\t\"phone\": \"512-555-5555\"\n\t\t},\n\t\t\"ship_to\": {\n\t\t\t\"name\": \"Amanda Miller\",\n\t\t\t\"address_line1\": \"525 S Winchester Blvd\",\n\t\t\t\"city_locality\": \"San Jose\",\n\t\t\t\"state_province\": \"CA\",\n\t\t\t\"postal_code\": \"95128\",\n\t\t\t\"country_code\": \"US\"\n\t\t},\n\t\t\"packages\": [\n\t\t\t{\n\t\t\t\t\"weight\": {\n\t\t\t\t\t\"value\": 17,\n\t\t\t\t\t\"unit\": \"pound\"\n\t\t\t\t},\n\t\t\t\t\"dimensions\": {\n\t\t\t\t\t\"length\": 36,\n\t\t\t\t\t\"width\": 12,\n\t\t\t\t\t\"height\": 24,\n\t\t\t\t\t\"unit\": \"inch\"\n\t\t\t\t}\n\t\t\t}\n\t\t]\n\t}\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 18:22:39 GMT"
        },
        {
          "key": "Content-Type",
          "value": "application/json; charset=utf-8"
        },
        {
          "key": "Content-Length",
          "value": "13902"
        },
        {
          "key": "Connection",
          "value": "keep-alive"
        },
        {
          "key": "Access-Control-Allow-Origin",
          "value": "https://www.shipengine.com"
        },
        {
          "key": "Vary",
          "value": "Origin"
        },
        {
          "key": "x-shipengine-requestid",
          "value": "45382f31-26c3-4d15-9673-4bcde0ccd77d"
        }
      ],
      "cookie": [
      ],
      "body": "{\n    \"rate_response\": {\n        \"rates\": [\n            {\n                \"rate_id\": \"se-12443424\",\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-12443425\",\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-12443426\",\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-12443427\",\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-12443428\",\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 - 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    }
  ]
}