package json import ( "reflect" "github.com/status-im/status-go/api/multiformat" "github.com/status-im/status-go/protocol/identity/emojihash" ) type PublicKeyData struct { CompressedKey string `json:"compressedKey"` EmojiHash []string `json:"emojiHash"` } func getPubKeyData(publicKey string) (*PublicKeyData, error) { compressedKey, err := multiformat.SerializeLegacyKey(publicKey) if err != nil { return nil, err } emojiHash, err := emojihash.GenerateFor(publicKey) if err != nil { return nil, err } return &PublicKeyData{compressedKey, emojiHash}, nil } func ExtendStructWithPubKeyData(publicKey string, item any) (any, error) { pkd, err := getPubKeyData(publicKey) if err != nil { return nil, err } // Create a struct with 2 embedded substruct fields in order to circumvent // "embedded field type cannot be a (pointer to a) type parameter" // compiler error that arises if we were to use a generic function instead typ := reflect.StructOf([]reflect.StructField{ { Name: "Item", Anonymous: true, Type: reflect.TypeOf(item), }, { Name: "Pkd", Anonymous: true, Type: reflect.TypeOf(pkd), }, }) v := reflect.New(typ).Elem() v.Field(0).Set(reflect.ValueOf(item)) v.Field(1).Set(reflect.ValueOf(pkd)) s := v.Addr().Interface() return s, nil }