[fix] handle mapping source_type to url_tile on executing samexporter_predict()

.gitignore

@@ -273,3 +273,6 @@ fabric.properties
 # Sonarlint plugin
 .idea/sonarlint
 /.idea/modules.xml
+
+# node_modules
+node_modules

src/app.py

@@ -39,7 +39,7 @@ def lambda_handler(event: Dict, context: LambdaContext) -> str:
 
         try:
             body_response = samexporter_predict(
-                body_request["bbox"], body_request["prompt"], body_request["zoom"], url_tile=body_request["source_type"]
+                body_request["bbox"], body_request["prompt"], body_request["zoom"], url_tile=body_request["url_tile"]
             )
             app_logger.info(f"output body_response length:{len(body_response)}.")
             app_logger.debug(f"output body_response:{body_response}.")

src/io/lambda_helpers.py

@@ -1,6 +1,7 @@
 """lambda helper functions"""
 from typing import Dict
 from aws_lambda_powertools.event_handler import content_types
+from xyzservices import providers
 
 from src import app_logger
 from src.io.coordinates_pixel_conversion import get_latlng_to_pixel_coordinates
@@ -72,7 +73,7 @@ def get_parsed_bbox_points(request_input: RawRequestInput) -> Dict:
         "bbox": [ne_latlng, sw_latlng],
         "prompt": new_prompt_list,
         "zoom": new_zoom,
-        "source_type": request_input.source_type
+        "url_tile": get_url_tile(request_input.source_type)
     }
 
 
@@ -149,3 +150,12 @@ def get_parsed_request_body(event: Dict or str) -> RawRequestInput:
     app_logger.warning(f"set log level to {getLevelName(app_logger.log_level)}.")
 
     return parsed_body
+
+
+def get_url_tile(source_type: str):
+    from src.utilities.constants import DEFAULT_TMS_NAME, DEFAULT_TMS
+
+    if source_type.lower() == DEFAULT_TMS_NAME:
+        return DEFAULT_TMS
+    providers_type = providers.query_name(source_type)
+    return providers_type.url

src/utilities/constants.py

@@ -13,6 +13,7 @@ MODEL_ENCODER_NAME = "mobile_sam.encoder.onnx"
 MODEL_DECODER_NAME = "sam_vit_h_4b8939.decoder.onnx"
 TILE_SIZE = 256
 EARTH_EQUATORIAL_RADIUS = 6378137.0
+DEFAULT_TMS_NAME = "openstreetmap"
 DEFAULT_TMS = 'https://tile.openstreetmap.org/{z}/{x}/{y}.png'
 WKT_3857 = 'PROJCS["WGS 84 / Pseudo-Mercator",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,'
 WKT_3857 += 'AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],'