moved err check

1 files changed, 18 insertions, 0 deletions

diff --git a/javascript/javascript_runtime.go b/javascript/javascript_runtime.go
index 84d61d405..a26f0154e 100644
--- a/javascript/javascript_runtime.go
+++ b/javascript/javascript_runtime.go
@@ -121,6 +121,7 @@ func (self *JSRE) initStdFuncs() {
 	eth.Set("startMining", self.startMining)
 	eth.Set("execBlock", self.execBlock)
 	eth.Set("dump", self.dump)
+	eth.Set("export", self.export)
 }
 
 /*
@@ -236,3 +237,20 @@ func (self *JSRE) execBlock(call otto.FunctionCall) otto.Value {
 
 	return otto.TrueValue()
 }
+
+func (self *JSRE) export(call otto.FunctionCall) otto.Value {
+	fn, err := call.Argument(0).ToString()
+	if err != nil {
+		fmt.Println(err)
+		return otto.FalseValue()
+	}
+
+	data := self.ethereum.ChainManager().Export()
+
+	if err := ethutil.WriteFile(fn, data); err != nil {
+		fmt.Println(err)
+		return otto.FalseValue()
+	}
+
+	return otto.TrueValue()
+}