add api module to contain logic for actually making http requests to keen api

Author: dkador

keen/api.py

@@ -0,0 +1,30 @@
+import requests
+from keen import exceptions
+
+__author__ = 'dkador'
+
+class KeenApi(object):
+    base_url = "https://api.keen.io"
+    api_version = "2.0"
+
+    def __init__(self, project_id, auth_token, base_url=None,
+                 api_version=None):
+        super(KeenApi, self).__init__()
+        self.project_id = project_id
+        self.auth_token = auth_token
+        if base_url:
+            self.base_url = base_url
+        if api_version:
+            self.api_version = api_version
+
+    def post_event(self, event):
+        url = "{}/{}/projects/{}/{}".format(self.base_url, self.api_version,
+                                            self.project_id,
+                                            event.collection_name)
+        headers = {"Authorization": self.auth_token,
+                   "Content-Type": "application/json"}
+        payload = event.to_json()
+        response = requests.post(url, data=payload, headers=headers)
+        if response.status_code != 201:
+            error = response.json
+            raise exceptions.KeenApiError(error)