Cleaned up example

pkg/solana/chainwriter/ccip_example_config.go

@@ -5,11 +5,21 @@ import (
 	"fmt"
 	"reflect"
 
+	ag_binary "github.com/gagliardetto/binary"
 	"github.com/gagliardetto/solana-go"
 )
 
 const registryAddress = "4Nn9dsYBcSTzRbK9hg9kzCUdrCSkMZq1UR6Vw1Tkaf6A"
 
+// Should match type here: https://github.com/smartcontractkit/chainlink-ccip/blob/6bb9583526ce7c281005d66ffdf4a5300fc8ddc9/chains/solana/gobindings/ccip_router/accounts.go#L707-L713
+type TokenAdminRegistry struct {
+	Version              uint8
+	Administrator        solana.PublicKey
+	PendingAdministrator solana.PublicKey
+	LookupTable          solana.PublicKey
+	WritableIndexes      [2]ag_binary.Uint128
+}
+
 func TestConfig() {
 	// Fake constant addresses for the purpose of this example.
 	routerProgramAddress := "4Nn9dsYBcSTzRbK9hg9kzCUdrCSkMZq1UR6Vw1Tkaf6B"
@@ -55,6 +65,7 @@ func TestConfig() {
 						IsSigner:   false,
 						IsWritable: false,
 						InternalField: InternalField{
+							Type:     reflect.TypeOf(TokenAdminRegistry{}),
 							Location: "LookupTable",
 						},
 					},
@@ -403,15 +414,11 @@ func CCIPArgsTransform(ctx context.Context, cw *SolanaChainWriterService, args a
 				Accounts: PDALookups{
 					Name: "RegistryTokenState",
 					PublicKey: AccountConstant{
-						Address:    registryAddress,
-						IsSigner:   false,
-						IsWritable: false,
+						Address: registryAddress,
 					},
 					Seeds: []Seed{
 						{Dynamic: AccountLookup{Location: "Message.TokenAmounts.DestTokenAddress"}},
 					},
-					IsSigner:   false,
-					IsWritable: false,
 					InternalField: InternalField{
 						Type:     reflect.TypeOf(DataAccount{}),
 						Location: "LookupTable",

pkg/solana/chainwriter/helpers.go

@@ -52,7 +52,7 @@ func GetValuesAtLocation(args any, location string) ([][]byte, error) {
 			binary.LittleEndian.PutUint64(buf, num)
 			vals = append(vals, buf)
 		} else {
-			return nil, fmt.Errorf("invalid value format at path: %s", location)
+			return nil, fmt.Errorf("invalid value format at path: %s, type: %s", location, reflect.TypeOf(value).String())
 		}
 	}