fix(route): Handle error on parameter format for route /things

tdd/__init__.py

@@ -34,6 +34,7 @@
     JSONSchemaError,
     IDNotFound,
     WrongMimeType,
+    IncorrectlyDefinedParameter,
 )
 from tdd.td import (
     clear_expired_td,
@@ -109,9 +110,7 @@ def create_app():
     for entry_point in entry_points(group="tdd_api.plugins.blueprints"):
         try:
             app.register_blueprint(entry_point.load())
-            print(
-                f"Imported {entry_point.value} blueprint"
-            )
+            print(f"Imported {entry_point.value} blueprint")
         except Exception as exc:
             print(f"ERROR ({entry_point.name}): {exc}")
             print(
@@ -121,9 +120,7 @@ def create_app():
     for entry_point in entry_points(group="tdd_api.plugins.transformers"):
         try:
             TD_TRANSFORMERS.append(entry_point.load())
-            print(
-                f"Imported {entry_point.value} transformer"
-            )
+            print(f"Imported {entry_point.value} transformer")
         except Exception as exc:
             print(f"ERROR ({entry_point.name}): {exc}")
             print(
@@ -344,6 +341,9 @@ def generate():
                 f' etag="{get_collection_etag()}"'
             )
             return response
+        raise IncorrectlyDefinedParameter(
+            "'format' parameter is not recognized. Must be 'array' or 'collection' if defined."
+        )
 
     @app.route("/things/<id>", methods=["GET"])
     def describe_td(id):

tdd/common.py

@@ -28,7 +28,6 @@
     query,
 )
 from tdd.metadata import insert_metadata, delete_metadata
-from tdd.errors import IDNotFound
 from tdd.config import CONFIG
 
 
@@ -56,14 +55,11 @@ def json_ld_to_ntriples(ld_content):
     input_data = json.dumps(ld_content) + "\n"
     with resources.path("tdd.lib", "transform-to-nt.js") as transform_lib_path:
         p = subprocess.Popen(
-            [
-                "node",
-                transform_lib_path
-            ],
+            ["node", transform_lib_path],
             stdin=subprocess.PIPE,
             stdout=subprocess.PIPE,
             stderr=subprocess.PIPE,
-            universal_newlines=True
+            universal_newlines=True,
         )
         p.stdin.write(input_data)
         p.stdin.flush()
@@ -111,14 +107,11 @@ def frame_nt_content(nt_content, frame):
     input_data = json.dumps([ntriples, frame]) + "\n"
     with resources.path("tdd.lib", "frame-jsonld.js") as frame_lib_path:
         p = subprocess.Popen(
-            [
-                "node",
-                frame_lib_path
-            ],
+            ["node", frame_lib_path],
             stdin=subprocess.PIPE,
             stdout=subprocess.PIPE,
             stderr=subprocess.PIPE,
-            universal_newlines=True
+            universal_newlines=True,
         )
         p.stdin.write(input_data)
         p.stdin.flush()
@@ -136,6 +129,6 @@ def get_id_description(uri, content_type, ontology):
     if not resp.text.strip() or not (
         re.search(r"^[^\#]", resp.text, re.MULTILINE)
     ):  # because some SPARQL endpoint may send "# Empty file" as response
-        #raise IDNotFound()
+        # raise IDNotFound()
         abort(404)
     return resp.text

tdd/errors.py

@@ -205,3 +205,7 @@ def __init__(self, provided_mimetype):
             f"Provided mimetype '{provided_mimetype}' is not supported. Only "
             f"{', '.join(POSSIBLE_MIMETYPES)}, application/json are allowed"
         )
+
+
+class IncorrectlyDefinedParameter(AppException):
+    title = "Incorrectly defined parameter"

tdd/sparql.py

@@ -212,7 +212,7 @@ def query(
                 sparqlendpoint,
                 data={"update": querystring},
             )
-    
+
     if resp.status_code not in status_codes:
         raise FusekiError(resp)
     return resp