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I'm able to retrieve geojson using the following call to the Overpass API for boroughs in London:

import overpass
api = overpass.API()
response = api.get('relation(1811626);>;out;')

However the result for each geo is individual coordinates, not a polygon:

{"features": [{"geometry": {"coordinates": [25.292698, 56.7083821],"type": "Point"}, "id": 1347523073, "properties": {}, "type": "Feature"}, {"geometry": {"coordinates": [25.292627, 56.7080704], "type": "Point"} ... }}

Is it possible to have Overpass return polygons instead of coordinates when querying relations? Or will we need to convert the coordinates to polygons.

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It's not possible to pull Geojson directly from OSM / Overpass from what I can tell.

Here's a workaround. First make a request to overpass and return XML. Then convert the XML to Geojson using osm2geojson (originally a JS package but recenlty adapted for PY)

import requests
import osm2geojson

response = requests.get('https://overpass-api.de/api/interpreter?data=[out:xml][timeout:25];(rel(51800););out geom;')
string = response.text.replace("\n","")
geojson = osm2geojson.xml2geojson(string)
json.dumps(geojson)

In my experience making a get request is easier than learning syntax for various python modules (overpy and overpass)

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