From 0c0742e7544f789f286992e16106f51a95acf1c0 Mon Sep 17 00:00:00 2001
From: tom <69969590+simlecode@users.noreply.github.com>
Date: Mon, 27 Jun 2022 18:15:20 +0800
Subject: [PATCH] fix: impl api BeaconGetEntry (#4989)

---
 app/submodule/chain/beacon.go          | 27 ++++++++++++++++++++++++++
 app/submodule/chain/chain_submodule.go |  1 +
 2 files changed, 28 insertions(+)
 create mode 100644 app/submodule/chain/beacon.go

diff --git a/app/submodule/chain/beacon.go b/app/submodule/chain/beacon.go
new file mode 100644
index 0000000000..36883c3fb2
--- /dev/null
+++ b/app/submodule/chain/beacon.go
@@ -0,0 +1,27 @@
+package chain
+
+import (
+	"context"
+
+	"github.com/filecoin-project/go-state-types/abi"
+	v1api "github.com/filecoin-project/venus/venus-shared/api/chain/v1"
+	"github.com/filecoin-project/venus/venus-shared/types"
+)
+
+var _ v1api.IBeacon = &beaconAPI{}
+
+type beaconAPI struct {
+	chain *ChainSubmodule
+}
+
+//NewBeaconAPI create a new beacon api
+func NewBeaconAPI(chain *ChainSubmodule) v1api.IBeacon {
+	return &beaconAPI{chain: chain}
+}
+
+// BeaconGetEntry returns the beacon entry for the given filecoin epoch. If
+// the entry has not yet been produced, the call will block until the entry
+// becomes available
+func (beaconAPI *beaconAPI) BeaconGetEntry(ctx context.Context, epoch abi.ChainEpoch) (*types.BeaconEntry, error) {
+	return beaconAPI.chain.API().StateGetBeaconEntry(ctx, epoch)
+}
diff --git a/app/submodule/chain/chain_submodule.go b/app/submodule/chain/chain_submodule.go
index 7c39ceded5..56ac43287d 100644
--- a/app/submodule/chain/chain_submodule.go
+++ b/app/submodule/chain/chain_submodule.go
@@ -113,6 +113,7 @@ func (chain *ChainSubmodule) API() v1api.IChain {
 		IActor:      NewActorAPI(chain),
 		IChainInfo:  NewChainInfoAPI(chain),
 		IMinerState: NewMinerStateAPI(chain),
+		IBeacon:     NewBeaconAPI(chain),
 	}
 }