serializers: use datapackage mediatype

Express file minetype as mediatype, cf. Data Resource specification, see
https://datapackage.org/standard/data-resource/#mediatype

Author: peterdesmet

invenio_rdm_records/resources/serializers/datapackage/schema.py

@@ -48,7 +48,7 @@ def get_resources(self, obj):
                 resource["name"] = file.get("key")
                 resource["path"] = f'{basepath}/files/{file.get("key")}'
                 resource["format"] = file.get("ext")
-                resource["mimetype"] = file.get("mimetype")
+                resource["mediatype"] = file.get("mimetype")
                 resource["bytes"] = file.get("size")
                 resource["hash"] = file.get("checksum")
                 resource = {k: v for k, v in resource.items() if v is not None}

tests/resources/serializers/test_datapackage_serializer.py

@@ -65,7 +65,7 @@ def test_data_package_serializer_full_record(full_record_to_dict):
                 "name": "test.txt",
                 "path": "https://127.0.0.1:5000/records/12345-abcde/files/test.txt",
                 "format": "txt",
-                "mimetype": "text/plain",
+                "mediatype": "text/plain",
                 "bytes": 9,
                 "hash": "md5:e795abeef2c38de2b064be9f6364ceae",
             },