planet labs metadata source.py

import gevent
from planet import api
import geojson

bbox = {{ string bbox }}
minx, miny, maxx, maxy = None, None, None, None
if bbox is not None:
    minx, miny, maxx, maxy = bbox.split(',')

if minx is not None:
    nw = (float(minx), float(maxy))
    se = (float(maxx), float(miny))
    ne = (se[0], nw[1])
    sw = (nw[0], se[1])
    poly = geojson.Polygon([[nw, ne, se, sw, nw]])
    intersects = geojson.dumps(poly)
else:
    center = {{ string CenterXY }}
    if center is not None:
        x, y = center.split(',')
    else:
        x, y = (-117, 40)
    intersects = 'POINT({} {})'.format(x, y)
    
scene_type = {{ string Scene_Type ["ortho", "rapideye", "landsat"] }} or 'ortho'
api_key = {{ string API_Key }}

def fetch_metadata():
    client = api.Client(api_key)
    r = client.get_scenes_list(scene_type=scene_type, intersects=intersects)
    for s in r.iter():
        for scene in s.get()['features']:
            yield scene