diff --git a/pybtc/connector/block_loader.py b/pybtc/connector/block_loader.py
index e91e044..5ad74a0 100644
--- a/pybtc/connector/block_loader.py
+++ b/pybtc/connector/block_loader.py
@@ -9,6 +9,7 @@ import signal
 import sys
 import aiojsonrpc
 import traceback
+from pybtc.connector.utils import decode_block_tx
 import pickle
 
 class BlockLoader:
@@ -73,6 +74,7 @@ class BlockLoader:
                     self.log.error("Loading task  error %s " % err)
             else:
                 await  asyncio.sleep(1)
+        [p.terminate() for p in self.worker_tasks]
 
 
 
@@ -149,7 +151,7 @@ class BlockLoader:
                 continue
 
             if msg_type == b'result':
-                msg
+                self.log.critical(str(len(msg)))
                 continue
 
 
@@ -171,7 +173,6 @@ class Worker:
         self.rpc_timeout = rpc_timeout
         self.rpc_batch_limit = rpc_batch_limit
         self.name = name
-
         in_writer.close()
         out_reader.close()
         policy = asyncio.get_event_loop_policy()
@@ -186,6 +187,30 @@ class Worker:
         self.loop.create_task(self.message_loop())
         self.loop.run_forever()
 
+    async def load_blocks(self, height):
+        batch = list()
+        h_list = list()
+        while True:
+            batch.append(["getblockhash", height])
+            h_list.append(height)
+            if len(batch) >= self.rpc_batch_limit:
+                height += 1
+                break
+            height += 1
+        result = await self.rpc.batch(batch)
+        h = list()
+        batch = list()
+        for lh, r in zip(h_list, result):
+            if r["result"] is not None:
+                batch.append(["getblock", r["result"], 0])
+                h.append(lh)
+        result = await self.rpc.batch(batch)
+        blocks = dict()
+        for x, y in zip(h, result):
+            if y["result"] is not None:
+                blocks[x] = decode_block_tx(y["result"])
+        self.pipe_sent_msg(b'result', pickle.dumps(blocks))
+
     async def message_loop(self):
         try:
             self.rpc = aiojsonrpc.rpc(self.rpc_url, self.loop, timeout=self.rpc_timeout)
@@ -196,7 +221,7 @@ class Worker:
                     return
 
                 if msg_type == b'get':
-                    self.log.critical(str(bytes_to_int(msg)))
+                    self.loop.create_task(self.load_blocks(bytes_to_int(msg)))
                     continue
         except:
             self.log.critical("exc")
@@ -234,12 +259,12 @@ class Worker:
             except:
                 return b'pipe_read_error', b''
 
-    def pipe_sent_msg(self, writer, msg_type, msg):
+    def pipe_sent_msg(self, msg_type, msg):
         msg_type = msg_type[:20].ljust(20)
         msg = msg_type + msg
         msg = b''.join((b'ME', len(msg).to_bytes(4, byteorder='little'), msg))
-        writer.write(msg)
-        writer.flush()
+        self.out_writer.write(msg)
+        self.out_writer.flush()