Add RPC/getRecentPerformanceSamples

rpc/getRecentPerformanceSamples.go

@@ -0,0 +1,26 @@
+package rpc
+
+import (
+	"context"
+
+	bin "github.com/dfuse-io/binary"
+)
+
+type GetRecentPerformanceSamplesResult struct {
+	Slot             bin.Uint64 `json:"slot"`             // Slot in which sample was taken at
+	NumTransactions  bin.Uint64 `json:"numTransactions"`  // Number of transactions in sample
+	NumSlots         bin.Uint64 `json:"numSlots"`         // Number of slots in sample
+	SamplePeriodSecs uint16     `json:"samplePeriodSecs"` // Number of seconds in a sample window
+}
+
+// GetRecentPerformanceSamples returns a list of recent performance samples,
+// in reverse slot order. Performance samples are taken every 60 seconds
+// and include the number of transactions and slots that occur in a given time window.
+func (cl *Client) GetRecentPerformanceSamples(ctx context.Context, limit *int) (out []*GetRecentPerformanceSamplesResult, err error) {
+	params := []interface{}{}
+	if limit != nil {
+		params = append(params, limit)
+	}
+	err = cl.rpcClient.CallFor(&out, "getRecentPerformanceSamples", params)
+	return
+}