WiFi Fingerprint API

HTTP API that stores Wifi Fingerprints and responds with the most matching fingerprint based on available WiFi`s for indoor localization.

ToC

• Introduction
• Setup
• Usage
• Endpointdescriptions
• ToDos

Introduction

This project serves a HTTP API that stores WiFi fingerprints from the BVGDetection Android Application.

Devices, (for now only the ESP8266) can request the API with their current WIFI fingerprint to verify their current location.

Setup

The project contains 3 services / Docker Container:

• IP:5000 HTTP API
• IP:27017 MongoDB
• ÌP:3100 Mongoku (WebUI for MongoDB)

Usage

In order to run the application, you´ll need a running docker daemon and docker-compose installed. For the tests, you will need pytest.

git clone https://github.com/FalcoSuessgott/AccessPointFingerprintAPI
cd AccessPointFingerprintAPI
# start the application
docker-compuse up
# running tests
pytest tests/

Endpointdescriptions

This application exposes two endpoints:

• /fingerprint manages the WiFI fingerprints (CRUD)
• /localize returns the most matching fingerprint based on clients available WiFi's

/fingerprint

Exposes a HTTP API to create, read, update and delete WiFI fingerprint APIs.

All fingerprints can be seen under http://IP:5000/fingeprint.

Get

Returns the WiFi fingerprint with the matching id

$> curl http://IP:5000/fingerprint/fingerprint_id

Returns:

• 200 Request was successful
• 404 No fingerprint were found with the ID

Post

Creates a fingerprint

$› cat fp.json

{
      "id": "fingerprint_id",
      "description": "Room 4.56 Bulding C",
      "coordinates": "52.56645,12.23232",
      "additionalInfo": "Taken by TM",
      "fingerprint": [
        {
          "timestamp": "20-12-2019-02.31.29",
          "signalSample": [
            {
              "macAddress": "02:00:00:00:01:00",
              "strength": -50
            }
          ]
        },
        {
          "timestamp": "20-12-2019-02.32.32",
          "signalSample": [
            {
              "macAddress": "02:00:00:00:01:00",
              "strength": -50
            }
          ]
        }
  ]
}

$> curl -i -H "Content-Type: application/json" -X POST -d @fp.json http://IP:5000/fingerprint

Returns:

• 201 Request was successful
• 400 Fingerprint does already exist with this ID
• 404 Invalid Fingerprint

Put

Updates the fingerprint wit the corresponding ID

$> curl -i -H "Content-Type: application/json" -X DELETE -d @fp.json http://IP:5000/fingerprint/fingeprint_id

Returns:

• 201 Request was successful
• 400 Invalid fingerprint.
• 404 No fingerprint were found with this ID.

Delete

Deletes the fingerprint with the specified ID

$> curl -i -X DELETE http://IP:5000/fingerprint/fingerprint_id

Returns:

• 201 Request was successful
• 404 No fingerprint were found with this ID.

/localize

Get

Returns the most matching fingerprint based on a list of specified WiFis (BSSID) and its strength values (RSSI) that are currently available for the client.

For example, an ESP8266 device does currently see 2 available WiFi`s then the request URI would look like:

http://IP:5000/localize?mac1=00:AA:11:BB:CC:44&strength1=-58&mac2=00:AA:11:BB:DD:44&&strength2=-34

A possible client implementation for the ESP8266 can be found in the /esp8266 directory. Returns:

• 200 The most matching fingerprint
• 400 Invalid request
• 404 No fingerprint were found

ToDos

• ...