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stargate / stargate-grpc-go-client

A golang gRPC client for https://stargate.io
Apache License 2.0
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Need Help with Collections #32

Open JonathanHo16 opened 2 years ago

JonathanHo16 commented 2 years ago

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 commented 2 years ago

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 commented 2 years ago

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 commented 2 years ago

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!