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Code Issues 13 Packages Projects Releases Wiki Activity

CQ/ITU zone lookups

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This commit is contained in:
Ian Renton
2026-02-03 19:06:43 +00:00
parent 9241a26a47
commit 3cd1352ff3
9 changed files with 208694 additions and 9 deletions
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60
server/handlers/api/lookups.py
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@@ -5,8 +5,10 @@ from datetime import datetime
import pytz
import tornado
from pyhamtools.locator import locator_to_latlong
from core.constants import SIGS
from core.geo_utils import lat_lon_for_grid_sw_corner_plus_size, lat_lon_to_cq_zone, lat_lon_to_itu_zone
from core.prometheus_metrics_handler import api_requests_counter
from core.sig_utils import get_ref_regex_for_sig, populate_sig_ref_info
from core.utils import serialize_everything
@@ -119,3 +121,61 @@ class APILookupSIGRefHandler(tornado.web.RequestHandler):
self.set_header("Cache-Control", "no-store")
self.set_header("Content-Type", "application/json")
# API request handler for /api/v1/lookup/grid
class APILookupGridHandler(tornado.web.RequestHandler):
def initialize(self, web_server_metrics):
self.web_server_metrics = web_server_metrics
def get(self):
try:
# Metrics
self.web_server_metrics["last_api_access_time"] = datetime.now(pytz.UTC)
self.web_server_metrics["api_access_counter"] += 1
self.web_server_metrics["status"] = "OK"
api_requests_counter.inc()
# request.arguments contains lists for each param key because technically the client can supply multiple,
# reduce that to just the first entry, and convert bytes to string
query_params = {k: v[0].decode("utf-8") for k, v in self.request.arguments.items()}
# "grid" query param must exist.
if "grid" in query_params.keys():
grid = query_params.get("grid").upper()
lat, lon, lat_cell_size, lon_cell_size = lat_lon_for_grid_sw_corner_plus_size(grid)
if lat is not None and lon is not None and lat_cell_size is not None and lon_cell_size is not None:
center_lat = lat + lat_cell_size / 2.0
center_lon = lon + lon_cell_size / 2.0
center_cq_zone = lat_lon_to_cq_zone(center_lat, center_lon)
center_itu_zone = lat_lon_to_itu_zone(center_lat, center_lon)
response = {
"center" : {
"latitude": center_lat,
"longitude": center_lon,
"cq_zone": center_cq_zone,
"itu_zone": center_itu_zone
},
"southwest" : {
"latitude": lat,
"longitude": lon,
},
"northeast" : {
"latitude": lat + lat_cell_size,
"longitude": lon + lon_cell_size,
}}
self.write(json.dumps(response, default=serialize_everything))
else:
self.write(json.dumps("Error - grid must be provided", default=serialize_everything))
self.set_status(422)
except Exception as e:
logging.error(e)
self.write(json.dumps("Error - " + str(e), default=serialize_everything))
self.set_status(500)
self.set_header("Cache-Control", "no-store")
self.set_header("Content-Type", "application/json")