add rest api for network and monitoring
diff --git a/src/emuvim/api/rest/network.py b/src/emuvim/api/rest/network.py
new file mode 100755
index 0000000..4a0214f
--- /dev/null
+++ b/src/emuvim/api/rest/network.py
@@ -0,0 +1,60 @@
+import logging
+from flask_restful import Resource
+from flask import request
+import json
+
+logging.basicConfig(level=logging.INFO)
+
+net = None
+
+
+class NetworkAction(Resource):
+    """
+    Add or remove chains between VNFs. These chain links are implemented as flow entries in the networks' SDN switches.
+    :param vnf_src_name: VNF name of the source of the link
+    :param vnf_dst_name: VNF name of the destination of the link
+    :param vnf_src_interface: VNF interface name of the source of the link
+    :param vnf_dst_interface: VNF interface name of the destination of the link
+    :param weight: weight of the link (can be useful for routing calculations)
+    :param match: OpenFlow match format of the flow entry
+    :param bidirectional: boolean value if the link needs to be implemented from src to dst and back
+    :param cookie: cookie value, identifier of the flow entry to be installed.
+    :return: message string indicating if the chain action is succesful or not
+    """
+
+    global net
+
+    def put(self, vnf_src_name, vnf_dst_name):
+        logging.debug("REST CALL: network chain add")
+        command = 'add-flow'
+        return self._NetworkAction(vnf_src_name, vnf_dst_name, command=command)
+
+    def delete(self, vnf_src_name, vnf_dst_name):
+        logging.debug("REST CALL: network chain remove")
+        command = 'del-flows'
+        return self._NetworkAction(vnf_src_name, vnf_dst_name, command=command)
+
+    def _NetworkAction(self, vnf_src_name, vnf_dst_name, command=None):
+        # call DCNetwork method, not really datacenter specific API for now...
+        # no check if vnfs are really connected to this datacenter...
+        try:
+            vnf_src_interface = json.loads(request.json).get("vnf_src_interface")
+            vnf_dst_interface = json.loads(request.json).get("vnf_dst_interface")
+            weight = json.loads(request.json).get("weight")
+            match = json.loads(request.json).get("match")
+            bidirectional = json.loads(request.json).get("bidirectional")
+            cookie = json.loads(request.json).get("cookie")
+            c = net.setChain(
+                vnf_src_name, vnf_dst_name,
+                vnf_src_interface=vnf_src_interface,
+                vnf_dst_interface=vnf_dst_interface,
+                cmd=command,
+                weight=weight,
+                match=match,
+                bidirectional=bidirectional,
+                cookie=cookie)
+            # return setChain response
+            return str(c), 200
+        except Exception as ex:
+            logging.exception("API error.")
+            return ex.message, 500
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