From 089239776b0e3de76f36e5b10ec594ee8ade3b58 Mon Sep 17 00:00:00 2001
From: Mo Lin <molin@wanchain.org>
Date: Thu, 26 Nov 2020 15:39:28 +0800
Subject: [PATCH] add API pos_getEpochBlock

---
 VERSION                     | 2 +-
 internal/web3ext/web3ext.go | 5 +++++
 params/version.go           | 8 ++++----
 pos/posapi/api.go           | 8 ++++++++
 4 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/VERSION b/VERSION
index f84efdbe9..eddb68330 100644
--- a/VERSION
+++ b/VERSION
@@ -1,2 +1,2 @@
-2.1.8
+2.1.9-beta
 
diff --git a/internal/web3ext/web3ext.go b/internal/web3ext/web3ext.go
index 10bea6266..3407bd96d 100644
--- a/internal/web3ext/web3ext.go
+++ b/internal/web3ext/web3ext.go
@@ -331,6 +331,11 @@ web3._extend({
 			call: 'pos_getEpochID',
 			params: 0
 		}),
+		new web3._extend.Method({
+			name: 'getEpochBlock',
+			call: 'pos_getEpochBlock',
+			params: 1
+		}),
 		new web3._extend.Method({
 			name: 'getSlotID',
 			call: 'pos_getSlotID',
diff --git a/params/version.go b/params/version.go
index a9ef7a9ce..62fa29b0e 100644
--- a/params/version.go
+++ b/params/version.go
@@ -21,10 +21,10 @@ import (
 )
 
 const (
-	VersionMajor = 2  // Major version component of the current release
-	VersionMinor = 1  // Minor version component of the current release
-	VersionPatch = 8  // Patch version component of the current release
-	VersionMeta  = "" // Version metadata to append to the version string
+	VersionMajor = 2      // Major version component of the current release
+	VersionMinor = 1      // Minor version component of the current release
+	VersionPatch = 9      // Patch version component of the current release
+	VersionMeta  = "beta" // Version metadata to append to the version string
 )
 
 // Version holds the textual version string.
diff --git a/pos/posapi/api.go b/pos/posapi/api.go
index 5cade6ac7..cd973ba1a 100644
--- a/pos/posapi/api.go
+++ b/pos/posapi/api.go
@@ -701,6 +701,14 @@ func (a PosApi) GetSlotID() uint64 {
 	return sl
 }
 
+func (a PosApi) GetEpochBlock(epochId uint64) (uint64, error) {
+	ep, _ := util.CalEpochSlotID(uint64(time.Now().Unix()))
+	if epochId <= posconfig.FirstEpochId || epochId >= ep {
+		return 0, fmt.Errorf("epochID error")
+	}
+	return util.GetEpochBlock(epochId), nil
+}
+
 func (a PosApi) GetSlotCount() int {
 	return posconfig.SlotCount
 }