How to Properly Unmarshal JSON into a Protobuf Struct Field of Type google.protobuf.Value?

Unmarshalling Protobuf Struct Fields from JSON

When trying to unmarshal a JSON string into a protobuf struct field of type google.protobuf.Value, the resulting field may become nil. This can occur when using the "encoding/json" library for data conversion.

Solution:

To correctly unmarshal JSON into a google.protobuf.Value field, it is recommended to use the google.golang.org/protobuf/encoding/protojson package. The correct code for unmarshalling would be:

req := &proto.JobCreateRequest{}
err := protojson.Unmarshal(bytes, req)

This package provides a specialized decoder for converting JSON into protobuf structs. It correctly handles the conversion of google.protobuf.Value fields, ensuring that they are properly unmarshalled.

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