Add envelope.NewAction.

v2alpha/soap/envelope/envelope.go

@@ -55,6 +55,15 @@ type Action struct {
 	Args any `xml:",any"`
 }
 
+// NewAction creates a SOAP action for sending with the given namespace URL,
+// action name, and arguments.
+func NewAction(nsURL, actionName string, args any) *Action {
+	return &Action{
+		XMLName: xml.Name{Space: nsURL, Local: actionName},
+		Args:    args,
+	}
+}
+
 // Write marshals a SOAP envelope to the writer. Errors can be from the writer
 // or XML encoding.
 func Write(w io.Writer, action *Action) error {

v2alpha/soap/envelope/envelope_test.go

@@ -16,13 +16,10 @@ func TestWriteRead(t *testing.T) {
 		Bar string `xml:"bar"`
 	}
 
-	sendAction := &Action{
-		XMLName: xml.Name{Space: "http://example.com/namespace", Local: "MyAction"},
-		Args: &Args{
-			Foo: "foo-1",
-			Bar: "bar-2",
-		},
-	}
+	sendAction := NewAction("http://example.com/namespace", "MyAction", &Args{
+		Foo: "foo-1",
+		Bar: "bar-2",
+	})
 
 	buf := &bytes.Buffer{}
 	err := Write(buf, sendAction)