From 70ce94c2098c5268c5273e61f8f29ebff8fe854b Mon Sep 17 00:00:00 2001
From: Slavomir <gagliardetto@users.noreply.github.com>
Date: Thu, 1 Jul 2021 15:24:49 +0200
Subject: [PATCH] Add RPC/getFeeCalculatorForBlockhash

---
 rpc/getFeeCalculatorForBlockhash.go | 31 +++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 rpc/getFeeCalculatorForBlockhash.go

diff --git a/rpc/getFeeCalculatorForBlockhash.go b/rpc/getFeeCalculatorForBlockhash.go
new file mode 100644
index 0000000..06f40cb
--- /dev/null
+++ b/rpc/getFeeCalculatorForBlockhash.go
@@ -0,0 +1,31 @@
+package rpc
+
+import (
+	"context"
+
+	"github.com/dfuse-io/solana-go"
+)
+
+type GetFeeCalculatorForBlockhashResult struct {
+	RPCContext
+	Value FeeCalculatorForBlockhashResult `json:"value"`
+}
+
+type FeeCalculatorForBlockhashResult struct {
+	FeeCalculator FeeCalculator `json:"feeCalculator"`
+}
+
+// GetFeeCalculatorForBlockhash returns the fee calculator
+// associated with the query blockhash, or null if the blockhash has expired.
+func (cl *Client) GetFeeCalculatorForBlockhash(
+	ctx context.Context,
+	hash solana.Hash, // query blockhash as a Base58 encoded string
+	commitment CommitmentType,
+) (out *GetFeeCalculatorForBlockhashResult, err error) {
+	params := []interface{}{hash}
+	if commitment != "" {
+		params = append(params, M{"commitment": commitment})
+	}
+	err = cl.rpcClient.CallFor(&out, "getFeeCalculatorForBlockhash", params)
+	return
+}