Add Go snippets

snippets/go/lnurl_withdraw.go

@@ -0,0 +1,35 @@
+package example
+
+import (
+	"log"
+
+	"github.com/breez/breez-sdk-go/breez_sdk"
+)
+
+func LnurlWithdraw() {
+	// ANCHOR: lnurl-withdraw
+	// Endpoint can also be of the form:
+	// lnurlw://domain.com/lnurl-withdraw?key=val
+	lnurlWithdrawUrl := "lnurl1dp68gurn8ghj7mr0vdskc6r0wd6z7mrww4exctthd96xserjv9mn7um9wdekjmmw843xxwpexdnxzen9vgunsvfexq6rvdecx93rgdmyxcuxverrvcursenpxvukzv3c8qunsdecx33nzwpnvg6ryc3hv93nzvecxgcxgwp3h33lxk"
+
+	if input, err := breez_sdk.ParseInput(lnurlWithdrawUrl); err != nil {
+		switch inputType := input.(type) {
+		case breez_sdk.InputTypeLnUrlWithdraw:
+			amountMsat := inputType.Data.MinWithdrawable
+			description := "comment"
+			if result, err := sdk.WithdrawLnurl(breez_sdk.LnUrlWithdrawRequest{
+				Data:        inputType.Data,
+				AmountMsat:  amountMsat,
+				Description: &description,
+			}); err != nil {
+				switch result.(type) {
+				case breez_sdk.LnUrlCallbackStatusOk:
+					log.Printf("Successfully withdrawn")
+				default:
+					log.Printf("Failed to withdraw")
+				}
+			}
+		}
+	}
+	// ANCHOR_END: lnurl-withdraw
+}