auto-reverse/samples/ura_sample.py

"""
URA GLS Map API — Full Sample
==============================
Shows exactly what the API returns with all headers and data.
Run from any IP (ArcGIS endpoints are publicly accessible).
"""

import json
import requests

# ---------------------------------------------------------------------------
# Config (from Env.js)
# ---------------------------------------------------------------------------
ESERVICE = "https://eservice.ura.gov.sg"
MAP_HOST = "https://maps.ura.gov.sg"
ONEMAP = "https://www.onemap.gov.sg"

session = requests.Session()
session.headers.update({
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36",
    "Referer": f"{ESERVICE}/maps/",
    "Origin": ESERVICE,
})


def show(label, resp):
    """Print full request/response details."""
    print(f"\n{'='*70}")
    print(f"  {label}")
    print(f"{'='*70}")
    print(f"  URL:      {resp.url}")
    print(f"  Status:   {resp.status_code}")
    print(f"\n  --- Request Headers ---")
    for k, v in resp.request.headers.items():
        print(f"  {k}: {v}")
    print(f"\n  --- Response Headers ---")
    for k, v in resp.headers.items():
        print(f"  {k}: {v}")
    print(f"\n  --- Response Body ---")
    try:
        data = resp.json()
        print(json.dumps(data, indent=2, ensure_ascii=False)[:5000])
        return data
    except Exception:
        print(resp.text[:3000])
        return None


# ---------------------------------------------------------------------------
# 1. Get OneMap auth token (JSONP)
# ---------------------------------------------------------------------------
print(f"\n{'#'*70}")
print(f"  STEP 1: Get OneMap Auth Token")
print(f"{'#'*70}")

token_resp = session.get(f"{ESERVICE}/sharedServicesWeb/onemapService/getOnemapToken", timeout=15)
print(f"\n  URL: {token_resp.url}")
print(f"  Status: {token_resp.status_code}")
print(f"  Raw response (JSONP): {token_resp.text[:200]}")

# Parse JSONP
text = token_resp.text.strip()
if "(" in text:
    start = text.index("(") + 1
    end = text.rindex(")")
    text = text[start:end]
token_data = json.loads(text)
onemap_token = token_data["token"]["token"]
print(f"\n  Parsed token: {onemap_token[:60]}...")
print(f"  Expiry: {token_data['token']['expiry']}")

session.headers["Authorization"] = onemap_token


# ---------------------------------------------------------------------------
# 2. URA GLS — Layer Metadata
# ---------------------------------------------------------------------------
show(
    "STEP 2: URA GLS Layer Metadata (what fields exist)",
    session.get(f"{MAP_HOST}/ArcGis/rest/services/lsag/ura_sale_sites/MapServer/0", params={"f": "json"}, timeout=15),
)


# ---------------------------------------------------------------------------
# 3. URA GLS — Query actual parcel data
# ---------------------------------------------------------------------------
show(
    "STEP 3: URA GLS Parcels (first 3, all fields)",
    session.get(
        f"{MAP_HOST}/ArcGis/rest/services/lsag/ura_sale_sites/MapServer/0/query",
        params={
            "where": "1=1",
            "outFields": "*",
            "f": "json",
            "resultRecordCount": "3",
        },
        timeout=15,
    ),
)


# ---------------------------------------------------------------------------
# 4. URA GLS — Query with filter (upcoming sites only)
# ---------------------------------------------------------------------------
show(
    "STEP 4: URA GLS — Filtered (SITE_STATUS = 'Launched')",
    session.get(
        f"{MAP_HOST}/ArcGis/rest/services/lsag/ura_sale_sites/MapServer/0/query",
        params={
            "where": "SITE_STATUS='Launched for Sale'",
            "outFields": "NAME_GLS,LOCATION,DEVT_ALLOW,GPR,GFA,SA_SQM,LEASE_YR,DATE_LNCH,DATE_CLOSG,SITE_STATUS",
            "f": "json",
            "resultRecordCount": "10",
        },
        timeout=15,
    ),
)


# ---------------------------------------------------------------------------
# 5. HDB Sale Sites
# ---------------------------------------------------------------------------
show(
    "STEP 5: HDB Sale Sites (first 3)",
    session.get(
        f"{MAP_HOST}/ArcGis/rest/services/lsag/hdb_sale_sites2/MapServer/0/query",
        params={
            "where": "1=1",
            "outFields": "*",
            "f": "json",
            "resultRecordCount": "3",
        },
        timeout=15,
    ),
)


# ---------------------------------------------------------------------------
# 6. JTC Sale Sites
# ---------------------------------------------------------------------------
show(
    "STEP 6: JTC Sale Sites (first 3)",
    session.get(
        f"{MAP_HOST}/arcgis/rest/services/lsag/jtc_sale_sites/MapServer/0/query",
        params={
            "where": "1=1",
            "outFields": "*",
            "f": "json",
            "resultRecordCount": "3",
        },
        timeout=15,
    ),
)


# ---------------------------------------------------------------------------
# 7. OneMap Reverse Geocode (with auth header)
# ---------------------------------------------------------------------------
show(
    "STEP 7: OneMap Reverse Geocode (Orchard Road)",
    session.get(
        f"{ONEMAP}/api/public/revgeocode",
        params={"location": "1.3004,103.8460", "addressType": "all", "otherFeatures": "Y"},
        timeout=15,
    ),
)


# ---------------------------------------------------------------------------
# 8. Map Export URL (server-rendered map image)
# ---------------------------------------------------------------------------
print(f"\n{'#'*70}")
print(f"  STEP 8: Map Export URLs (open in browser)")
print(f"{'#'*70}")

# Bounding box for Singapore (SVY21 coordinates)
# xmin,ymin,xmax,ymax
bboxes = {
    "Central Singapore": "28000,30000,32000,34000",
    "Full Singapore": "5000,25000,50000,50000",
}

for name, bbox in bboxes.items():
    url = f"{MAP_HOST}/ArcGis/rest/services/lsag/ura_sale_sites/MapServer/export?f=image&bbox={bbox}&size=800,600&format=png&transparent=false"
    print(f"\n  {name}:")
    print(f"  {url}")

print(f"\n  Open any of these URLs in your browser to see the GLS parcels map!")