[SERVER] Requests

[updatezone]: gets zone information and updates users location

• POST: http://wifi-location.appspot.com/request/updatezone
• BODY: {"user_id" : 1, "mac_address" : "00:1f:45:64:17:d1" }
• RESPONSE:
  {
  "status" : 0
  "zone_id": 21,
  "user_location": 21,
  "last_update": "just now",
  "user": "Alex",
  "mac_address": "00:1f:45:64:17:d1",
  "zone_name": "Galleria3_1"
  "map_name": "unknown"
  }
  
• STATUS:
  0: success (zone name & id returned, user location updated)
  1: user not found
  2: zone not found (mac_address unknown)
  

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[get list of friends] : ask server for a list of friends

• POST: http://wifi-location.appspot.com/request/friendlist
  

• BODY: {"user_id" : 1}
  

• RESPONSE:
  {
  "status" : 0
  "friend_list":
  [
  {
  "friend_name": "Alex",
  "friend_location": "unknown",
  "last_update": "2 days ago"
  },
  {
  "friend_name": "Catherine",
  "friend_location": "unknown",
  "last_update": "2 days ago"
  },
  ]
  }
  

• STATUS:
  0: success (list of friends returned)
  1: user not found
  

---

[send friendship request] : sends the server a friendship request

• POST: http://wifi-location.appspot.com/request/friendship

• BODY: {"user_id" : 1, "friend_id" : 2 }

• RESPONSE:
  {
  "status" : 0
  "request_id": 33
  }
  

• STATUS:
  0: success (friendship request registered)
  1: user not found
  2: friend not found
  3: duplication (request already existed)
  4: user_id equals friend_id (user can't add him/herself)
  

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