GeoLocation

GeoLocation contains Apis' for different Geolocation Mapping And Analysis purposes (eg:- Like google Maps Api's)

Api Features!

• Create Two APIs in flask : Get,Post.

  • Post : Post latitude,longitude of any location with pin code + address + city and you can add new pin code in db. This api will be /post_location. Remember to check if pin code already exists or if there are existing latitude+longitude THAT ARE CLOSE ENOUGH TO BE THE SAME (dont assume that they will exactly be the same.) EndPoint:- /post_location

  • Get : There are two GET apis. Given a location, fetch all the nearby pin codes within a radius. For example, I can ask - give me all points within 5km radius of (45.12, 71.12) . To do this there are two methods implemented:-

    • Mathematical computation of radius. Endpoint:- /get_using_self?query

    • Using postgres "earthdistance" to compute all points in 5km radius. EndPoint:- /get_using_postgres?query

    • Test results between /get_using_postgres and /get_using_self.

      • For testing results between /get_using_postgres and /get_using_self another EndPoint is created /compareSelfWithPostgres that compares the results of both self and Postgres that were stored in the respective databases and gives the json comparison.

  • A Geojson is a json file which defines shapes of locations - for example the shape of delhi, gurgaon, etc. This geojson is used to define delhi and its areas. Parse this json, and load the boundaries latitude and longitude (geometry -> coordinates) into postgresql in a new table. you can use any structure. Two Methods Used For this:-

    • Parsed The data from the Given geojson file and stored the polygons geometry in the database corresponding to the name of the location.

    • Used Open Street Map Api for getting the json data scraped the data using beautiful soup and loaded the polygon representation of the boundaries to the database.

  • In this API : given a latitude/longitude, it will tell you which place it falls within. EndPoint:- /geoJsonParse

• Written testcases (using the test framework in your language. using a test framework).

Installation

- Assumptions Made:- 
    - The very near locations for /post_Location end point are the ones lying within 1km of radius/range
    - map.geojson was provided for uploading for the last /latitude_longitude api.
   
To upload data in database use postgres import method for uploading a large csv file.
Then visit the /addPoint Url to store geometry representation of the data.
Then use other end-points.
To run the tests you have to first create a geospatial database with postgis extention enabled, and then run the tests.

Extras

Pictorial Documentation Is Also Provided for cross Check