RPC client: abft API wrapper

ftmclient/abft_api.go

@@ -0,0 +1,24 @@
+package ftmclient
+
+import (
+	"context"
+	"math/big"
+
+	"github.com/ethereum/go-ethereum"
+	"github.com/ethereum/go-ethereum/common/hexutil"
+
+	"github.com/Fantom-foundation/go-opera/inter"
+)
+
+// GetValidators returns Lachesis event by hash or short ID.
+func (ec *Client) GetValidators(ctx context.Context, epoch *big.Int) (inter.ValidatorProfiles, error) {
+	var raw map[hexutil.Uint64]interface{}
+	err := ec.c.CallContext(ctx, &raw, "abft_getValidators", toBlockNumArg(epoch))
+	if err != nil {
+		return nil, err
+	} else if len(raw) == 0 {
+		return nil, ethereum.NotFound
+	}
+
+	return inter.RPCUnmarshalValidators(raw)
+}