Let data get expired.

iot_data/__init__.py

@@ -3,6 +3,7 @@
 from flask import Flask, abort, request, make_response
 import json
 import os
+import time
 
 app = Flask(__name__)
 
@@ -32,6 +33,7 @@ def ingress(key):
         values[keys[key]] = {
             "payload": request.data,
             "content-type": content_type,
+            "last-modified": time.time(),
         }
     else:
         return make_response("", 404)
@@ -42,10 +44,15 @@ def ingress(key):
 def data(name):
     if not name in config:
         return make_response("", 404)
+    if name in values:
+        if "delete-after" in config[name]:
+            if (values[name]["last-modified"] + config[name]["delete-after"]) < time.time():
+                values.pop(name)
     if not name in values:
         return make_response("", 404)
     resp = make_response(values[name]["payload"], 200)
-    resp.headers['content-type'] = values[name]["content-type"]
+    resp.headers['Content-Type'] = values[name]["content-type"]
+    resp.headers['Last-Modified'] = time.strftime("%a, %d %b %Y %H:%M:%S GMT", time.gmtime(values[name]["last-modified"]))
     return resp
 
 if __name__ == "__main__":