Add OData import support

CHANGELOG.md

@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+- `datacontract import odata` creates a datacontract from OData 4 metadata at an URL or from a local file.
+
 ## [1.2.1] - 2026-09-22
 
 ### Highlights

datacontract/command_import.py

@@ -909,3 +909,54 @@ def import_athena(
         id=id,
     )
     _write_result(result, output)
+
+
+@import_app.command(
+    name="odata",
+    epilog="Example: datacontract import odata --service-root-url https://example.com/odata/ --entity-set Products --output datacontract.yaml",
+)
+def import_odata(
+    service_root_url: Annotated[str, typer.Option(help="HTTP(S) root URL of the OData service.")],
+    service_root_file: Annotated[
+        Optional[Path],
+        typer.Option(help="Local JSON service document. Ignored when --entity-set is supplied."),
+    ] = None,
+    entity_set: Annotated[
+        Optional[List[str]],
+        typer.Option(help="EntitySet to import (repeat for multiple sets). If omitted, use the service document."),
+    ] = None,
+    metadata_url: Annotated[
+        Optional[str],
+        typer.Option(
+            "--metadata-url",
+            help="CSDL XML or JSON URL. Defaults to SERVICE_ROOT_URL/$metadata unless --metadata-file is supplied.",
+        ),
+    ] = None,
+    metadata_file: Annotated[
+        Optional[Path],
+        typer.Option(
+            "--metadata-file",
+            help="Path to a local OData CSDL XML or JSON file. Use either --metadata-file or --metadata-url.",
+        ),
+    ] = None,
+    output: output_option = None,
+    owner: owner_option = None,
+    id: id_option = None,
+    debug: debug_option = None,
+):
+    """Import a data contract from OData 4.x CSDL XML or JSON metadata, using a URL or local file."""
+    if metadata_url is not None and metadata_file is not None:
+        raise typer.BadParameter("--metadata-url and --metadata-file are mutually exclusive.")
+    enable_debug_logging(debug)
+    result = DataContract.import_from_source(
+        config=cli_config(),
+        format="odata",
+        source=service_root_url,
+        odata_service_root_file=service_root_file,
+        odata_entity_set=entity_set,
+        odata_metadata_url=metadata_url,
+        odata_metadata_file=metadata_file,
+        owner=owner,
+        id=id,
+    )
+    _write_result(result, output)

datacontract/imports/importer.py

@@ -40,6 +40,7 @@ class ImportFormat(str, Enum):
     json = "json"
     bigquery = "bigquery"
     odcs = "odcs"
+    odata = "odata"
     unity = "unity"
     databricks = "databricks"
     spark = "spark"

datacontract/imports/importer_factory.py

@@ -187,3 +187,8 @@ def load_module_class(module_path, class_name):
     module_path="datacontract.imports.json_importer",
     class_name="JsonImporter",
 )
+importer_factory.register_lazy_importer(
+    name=ImportFormat.odata,
+    module_path="datacontract.imports.odata_importer",
+    class_name="ODataImporter",
+)