download file func

opencv-motion-detect/deployment/version.json

+{
+    "b1.0.0": {
+        "evcloudsvc": {
+            "url": "",
+            "version": "0.1.1",
+            "updateTime": 123
+        },
+        "evdaemon": {
+            "url": "",
+            "version": "0.1.1",
+            "updateTime": 123
+        },
+        "evmgr": {
+            "url": "",
+            "version": "0.1.1",
+            "updateTime": 123
+        },
+        "evpuller": {
+            "url": "",
+            "version": "0.1.1",
+            "updateTime": 123
+        },
+        "evpusher": {
+            "url": "",
+            "version": "0.1.1",
+            "updateTime": 123
+        },
+        "evslicer": {
+            "url": "",
+            "version": "0.1.1",
+            "updateTime": 123
+        },
+        "evmlmotion": {
+            "url": "",
+            "version": "0.1.1",
+            "updateTime": 123
+        }
+    }
+}
+