ChainWriter: Specify Ignorable Errors for Optional Lookups

integration-tests/relayinterface/lookups_test.go

@@ -150,7 +150,7 @@ func TestAccountLookups(t *testing.T) {
 			IsWritable: chainwriter.MetaBool{Value: true},
 		}}
 		_, err := lookupConfig.AccountLookup.Resolve(testArgs)
-		require.Error(t, err)
+		require.ErrorIs(t, err, chainwriter.ErrLookupNotFoundAtLocation)
 	})
 
 	t.Run("AccountLookup works with MetaBool bitmap lookups", func(t *testing.T) {
@@ -360,8 +360,7 @@ func TestPDALookups(t *testing.T) {
 		}
 
 		_, err := pdaLookup.Resolve(ctx, args, nil, client.MultiClient{})
-		require.Error(t, err)
-		require.Contains(t, err.Error(), "key not found")
+		require.ErrorIs(t, err, chainwriter.ErrGettingSeedAtLocation)
 	})
 
 	t.Run("PDALookup resolves valid PDA with address lookup seeds", func(t *testing.T) {
@@ -569,6 +568,21 @@ func TestLookupTables(t *testing.T) {
 		require.Contains(t, err.Error(), "error fetching account info for table") // Example error message
 	})
 
+	t.Run("Derived lookup table fails with invalid table name", func(t *testing.T) {
+		derivedTableMap := map[string]map[string][]*solana.AccountMeta{
+			"DerivedTable": {},
+		}
+		accountsFromLookupTable := chainwriter.Lookup{
+			AccountsFromLookupTable: &chainwriter.AccountsFromLookupTable{
+				LookupTableName: "InvalidTable",
+				IncludeIndexes:  []int{},
+			},
+		}
+
+		_, err = accountsFromLookupTable.Resolve(ctx, nil, derivedTableMap, multiClient)
+		require.ErrorIs(t, err, chainwriter.ErrLookupTableNotFound)
+	})
+
 	t.Run("Static lookup table fails with invalid address", func(t *testing.T) {
 		invalidTable := chainwriter.GetRandomPubKey(t)
 
@@ -608,8 +622,15 @@ func TestLookupTables(t *testing.T) {
 		derivedTableMap, _, err := cw.ResolveLookupTables(ctx, testArgs, lookupConfig)
 		require.NoError(t, err)
 
-		addresses, ok := derivedTableMap["DerivedTable"][table.String()]
-		require.True(t, ok)
+		accountsFromLookupTable := chainwriter.Lookup{
+			AccountsFromLookupTable: &chainwriter.AccountsFromLookupTable{
+				LookupTableName: "DerivedTable",
+				IncludeIndexes:  []int{},
+			},
+		}
+
+		addresses, err := accountsFromLookupTable.Resolve(ctx, nil, derivedTableMap, multiClient)
+		require.NoError(t, err)
 		for i, address := range addresses {
 			require.Equal(t, pubKeys[i], address.PublicKey)
 		}
@@ -654,8 +675,15 @@ func TestLookupTables(t *testing.T) {
 		derivedTableMap, _, err := cw.ResolveLookupTables(ctx, args, lookupConfig)
 		require.NoError(t, err)
 
-		addresses, ok := derivedTableMap["DerivedTable"][lookupTable.String()]
-		require.True(t, ok)
+		accountsFromLookupTable := chainwriter.Lookup{
+			AccountsFromLookupTable: &chainwriter.AccountsFromLookupTable{
+				LookupTableName: "DerivedTable",
+				IncludeIndexes:  []int{},
+			},
+		}
+
+		addresses, err := accountsFromLookupTable.Resolve(ctx, args, derivedTableMap, multiClient)
+		require.NoError(t, err)
 		for i, address := range addresses {
 			require.Equal(t, lookupKeys[i], address.PublicKey)
 		}

pkg/solana/chainwriter/chain_writer.go

@@ -155,7 +155,7 @@ func GetAddresses(ctx context.Context, args any, accounts []Lookup, derivedTable
 	var addresses []*solana.AccountMeta
 	for _, accountConfig := range accounts {
 		meta, err := accountConfig.Resolve(ctx, args, derivedTableMap, client)
-		if accountConfig.Optional && err != nil {
+		if accountConfig.Optional && err != nil && isIgnorableError(err) {
 			// skip optional accounts if they are not found
 			continue
 		}
@@ -167,6 +167,13 @@ func GetAddresses(ctx context.Context, args any, accounts []Lookup, derivedTable
 	return addresses, nil
 }
 
+// These errors are ignorable if the lookup is optional.
+func isIgnorableError(err error) bool {
+	return errors.Is(err, ErrLookupNotFoundAtLocation) ||
+		errors.Is(err, ErrLookupTableNotFound) ||
+		errors.Is(err, ErrGettingSeedAtLocation)
+}
+
 // FilterLookupTableAddresses takes a list of accounts and two lookup table maps
 // (one for derived tables, one for static tables) and filters out any addresses that are
 // not used by the accounts. It returns a map of only those lookup table
@@ -460,7 +467,7 @@ func (s *SolanaChainWriterService) ResolveLookupTables(ctx context.Context, args
 		// Load the lookup table - note: This could be multiple tables if the lookup is a PDALookups that resolves to more
 		// than one address
 		lookupTableMap, err := s.loadTable(ctx, args, derivedLookup)
-		if derivedLookup.Optional && err != nil {
+		if derivedLookup.Optional && err != nil && isIgnorableError(err) {
 			continue
 		}
 		if err != nil {

pkg/solana/chainwriter/lookups.go

@@ -13,6 +13,12 @@ import (
 	"github.com/smartcontractkit/chainlink-solana/pkg/solana/codec"
 )
 
+var (
+	ErrLookupNotFoundAtLocation = fmt.Errorf("error getting account from lookup")
+	ErrLookupTableNotFound      = fmt.Errorf("lookup table not found")
+	ErrGettingSeedAtLocation    = fmt.Errorf("error getting address seed for location")
+)
+
 type Lookup struct {
 	Optional                bool
 	AccountConstant         *AccountConstant         `json:"accountConstant,omitempty"`
@@ -146,7 +152,7 @@ func (ac AccountConstant) Resolve() ([]*solana.AccountMeta, error) {
 func (al AccountLookup) Resolve(args any) ([]*solana.AccountMeta, error) {
 	derivedValues, err := GetValuesAtLocation(args, al.Location)
 	if err != nil {
-		return nil, fmt.Errorf("error getting account from lookup: %w", err)
+		return nil, fmt.Errorf("%w: %v", ErrLookupNotFoundAtLocation, err)
 	}
 
 	var metas []*solana.AccountMeta
@@ -206,7 +212,7 @@ func (alt AccountsFromLookupTable) Resolve(derivedTableMap map[string]map[string
 	// Fetch the inner map for the specified lookup table name
 	innerMap, ok := derivedTableMap[alt.LookupTableName]
 	if !ok {
-		return nil, fmt.Errorf("lookup table not found: %s", alt.LookupTableName)
+		return nil, fmt.Errorf("%w: %s", ErrLookupTableNotFound, alt.LookupTableName)
 	}
 
 	var result []*solana.AccountMeta
@@ -332,7 +338,7 @@ func getSeedBytesCombinations(
 				// Get value from a location (This doesn't have to be an address, it can be any value)
 				bytes, err := GetValuesAtLocation(args, lookupSeed.Location)
 				if err != nil {
-					return nil, fmt.Errorf("error getting address seed for location %q: %w", lookupSeed.Location, err)
+					return nil, fmt.Errorf("%w %q: %w", ErrGettingSeedAtLocation, lookupSeed.Location, err)
 				}
 				// append each byte array to the expansions
 				for _, b := range bytes {