Need Help with Collections

[JonathanHo16]

Hi I was wondering if someone could tell me what I am doing wrong here, the compiler tells me "missing type in composite literal" however, I don't know what do to fix it. I'm still kind of new to Go, gRPC, and protocol buffers. Code Snippet Below
practiceArray := []*proto.Value{ {Inner: &proto.Value_Int{Int: int64(data.M_suspensionPosition[0])}}, {Inner: &proto.Value_Int{Int: int64(data.M_suspensionPosition[1])}}, {Inner: &proto.Value_Int{Int: int64(data.M_suspensionPosition[2])}}, {Inner: &proto.Value_Int{Int: int64(data.M_suspensionPosition[3])}}, } var testCollection = &proto.Value_Collection{Collection: {Elements: practiceArray}} print(testCollection)

[mpenick]

Fix code to make it viewable:

practiceArray := []*proto.Value{
        {Inner: &proto.Value_Int{Int: int64(data.M_suspensionPosition[0])}},
        {Inner: &proto.Value_Int{Int: int64(data.M_suspensionPosition[1])}},
        {Inner: &proto.Value_Int{Int: int64(data.M_suspensionPosition[2])}},
        {Inner: &proto.Value_Int{Int: int64(data.M_suspensionPosition[3])}},
    }
    var testCollection = &proto.Value_Collection{Collection: {Elements: practiceArray}}
    print(testCollection)

[mpenick]

This is the fix:

&proto.Value_Collection{Collection: {Elements: practiceArray}} -->
&proto.Value_Collection{Collection: &proto.Collection{Elements: practiceArray}}

Full code (w/ fix):

	practiceArray := []*proto.Value{
		{Inner: &proto.Value_Int{Int: int64(data.M_suspensionPosition[0])}},
		{Inner: &proto.Value_Int{Int: int64(data.M_suspensionPosition[1])}},
		{Inner: &proto.Value_Int{Int: int64(data.M_suspensionPosition[2])}},
		{Inner: &proto.Value_Int{Int: int64(data.M_suspensionPosition[3])}},
	}
	testCollection := &proto.Value_Collection{Collection: &proto.Collection{Elements: practiceArray}} 
	print(testCollection)

[mpenick]

The protobuf type can be quite verbose and can be a bit difficult to use. This project is working toward making the Go gRPC API easier to use: https://github.com/datastax-ext/astra-go-sdk. It's still early days, but maybe give it a try!