You can't do it through UPS. They use SOAP/XML for their endpoints with absolutely no client libraries or documentation to support you, but you can use Easypost to connect to UPS today using Go.
apiKey := os.Getenv("<YOUR_TEST/PRODUCTION_API_KEY>") client := easypost.New(apiKey) toAddress, err := client.CreateAddress(...) fromAddress, err := client.CreateAddress(...) parcel, err := client.CreateParcel( &easypost.Parcel( PredefinedPackage: "Parcel", Weight: 28, ), ) shipment, err := client.CreateShipment( &easypost.Shipment( ToAddress: toAddress, FromAddress: fromAddress, Parcel: parcel, ), ) shipment, err = client.BuyShipment(shipment.ID, shipment.Rates, "100.00")
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Casper sped up their European launch thanks to EasyPost's support of over 30+ European carriers.
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