[FIREBASE_STORAGE]: Wrong json key for customMetadata

[ciceromsjr]

Is there an existing issue for this?

• I have searched the existing issues.

Which plugins are affected?

Storage

Which platforms are affected?

Windows

Description

I'm having an issue retrieving metadata from a file on Windows. The file has metadata, but when I fetch this data, the 'customMetadata' attribute comes back null. Inspecting the returned object, it's possible to see that it exists but under a different key in the mapping: 'metadata'.

I also noticed that the custom metadata I send when uploading a file isn't being sent. It might be related to this same issue.

I'm using firebase_storage version 11.7.4."

Reproducing the issue

Using the firebase_storage plugin version 11.7.4 on Windows:

Retrieve the metadata of a file that has custom metadata.

The customMetadata object comes back null, but inspecting the FullMetadata object, it exists under the key "metadata".

Firebase Core version

2.30.1

Flutter Version

3.19.6

Relevant Log Output

No response

Flutter dependencies

Expand Flutter dependencies snippet

- app_tracking_transparency 2.0.4 [flutter]
- archive 3.4.10 [crypto path pointycastle]
- background_downloader 8.4.3 [flutter logging http path_provider path async mime collection]
- cached_network_image 3.3.1 [cached_network_image_platform_interface cached_network_image_web flutter flutter_cache_manager octo_image]
- cloud_firestore 4.17.2 [cloud_firestore_platform_interface cloud_firestore_web collection firebase_core firebase_core_platform_interface flutter meta]
- collection 1.18.0
- community_material_icon 5.9.55 [flutter]
- connectivity_checker 1.1.0 [flutter provider]
- crypto 3.0.3 [typed_data]
- csv 5.1.1
- cupertino_icons 1.0.6
- currency_picker 2.0.21 [flutter collection]
- d_chart 2.6.9 [flutter community_charts_flutter community_charts_common]
- data_table_2 2.5.12 [flutter async]
- desktop_disk_space 0.0.1 [flutter plugin_platform_interface]
- device_info_plus 9.1.2 [device_info_plus_platform_interface ffi file flutter flutter_web_plugins meta win32 win32_registry]
- device_preview 1.1.0 [flutter flutter_localizations provider device_frame freezed_annotation json_annotation shared_preferences collection]
- dotted_line 3.2.2 [flutter]
- dropdown_button2 2.3.9 [flutter meta]
- encrypt 5.0.3 [args asn1lib clock collection crypto pointycastle]
- event_bus 2.0.0
- excel 2.1.0 [archive xml collection equatable]
- expansion_widget 0.0.3 [flutter]
- extension_google_sign_in_as_googleapis_auth 2.0.12 [flutter google_sign_in googleapis_auth http meta]
- fancy_password_field 2.0.6 [flutter password_strength]
- file_picker 6.2.1 [flutter flutter_web_plugins flutter_plugin_android_lifecycle plugin_platform_interface ffi path win32]
- firebase_auth 4.19.4 [firebase_auth_platform_interface firebase_auth_web firebase_core firebase_core_platform_interface flutter meta]
- firebase_core 2.30.1 [firebase_core_platform_interface firebase_core_web flutter meta]
- firebase_crashlytics 3.5.0 [firebase_core firebase_core_platform_interface firebase_crashlytics_platform_interface flutter stack_trace]
- firebase_messaging 14.8.0 [firebase_core firebase_core_platform_interface firebase_messaging_platform_interface firebase_messaging_web flutter meta]
- firebase_storage 11.7.4 [firebase_core firebase_core_platform_interface firebase_storage_platform_interface firebase_storage_web flutter]
- firedart 0.9.8 [http grpc protobuf fixnum]
- fl_chart 0.67.0 [equatable flutter]
- flutter 0.0.0 [characters collection material_color_utilities meta vector_math sky_engine]
- flutter_email_sender 6.0.3 [flutter]
- flutter_grid_button 2.1.0 [flutter]
- flutter_local_notifications 16.3.3 [clock flutter flutter_local_notifications_linux flutter_local_notifications_platform_interface timezone]
- flutter_localizations 0.0.0 [flutter intl characters clock collection material_color_utilities meta path vector_math]
- flutter_secure_storage 9.0.0 [flutter flutter_secure_storage_linux flutter_secure_storage_macos flutter_secure_storage_platform_interface flutter_secure_storage_web flutter_secure_storage_windows meta]
- flutter_simple_calculator 2.2.4 [flutter intl flutter_grid_button auto_size_text expressions]
- flutter_social_textfield 0.1.2 [flutter]
- flutter_styled_toast 2.2.1 [flutter flutter_localizations]
- flutter_svg 2.0.10+1 [flutter http vector_graphics vector_graphics_codec vector_graphics_compiler]
- flutter_timezone 1.0.8 [flutter_web_plugins flutter js]
- get 4.6.6 [flutter]
- google_mobile_ads 5.0.0 [meta flutter webview_flutter_android webview_flutter_wkwebview webview_flutter]
- image_cropper 5.0.1 [flutter image_cropper_platform_interface image_cropper_for_web]
- image_picker 1.0.7 [flutter image_picker_android image_picker_for_web image_picker_ios image_picker_linux image_picker_macos image_picker_platform_interface image_picker_windows]
- in_app_purchase 3.1.13 [flutter in_app_purchase_android in_app_purchase_platform_interface in_app_purchase_storekit]
- in_app_review 2.0.9 [flutter in_app_review_platform_interface]
- intl 0.18.1 [clock meta path]
- jiffy 5.0.1 [intl]
- json_annotation 4.8.1 [meta]
- just_the_tooltip 0.0.12 [flutter]
- local_auth 2.2.0 [flutter local_auth_android local_auth_darwin local_auth_platform_interface local_auth_windows]
- lottie 3.1.0 [archive flutter http path vector_math]
- mask_text_input_formatter 2.9.0 [flutter]
- mime 1.0.5
- modal_bottom_sheet 2.1.2 [flutter]
- ntp 2.0.0
- open_app_file 4.0.2 [flutter ffi]
- package_info_plus 6.0.0 [ffi flutter flutter_web_plugins http meta path package_info_plus_platform_interface web win32]
- path 1.9.0
- path_provider 2.1.2 [flutter path_provider_android path_provider_foundation path_provider_linux path_provider_platform_interface path_provider_windows]
- pdf 3.10.8 [archive barcode bidi crypto image meta path_parsing vector_math xml]
- percent_indicator 4.2.3 [flutter]
- persistent_bottom_nav_bar_v2 4.2.8 [flutter]
- progress_dialog_null_safe 1.0.7 [flutter]
- provider 6.1.2 [collection flutter nested]
- retry 3.1.2
- shared_preferences 2.2.2 [flutter shared_preferences_android shared_preferences_foundation shared_preferences_linux shared_preferences_platform_interface shared_preferences_web shared_preferences_windows]
- shimmer 2.0.0 [flutter]
- sprintf 7.0.0
- sqflite 2.3.3 [flutter sqflite_common path]
- sqflite_common_ffi 2.3.3 [sqlite3 sqflite_common synchronized path meta]
- sqlite3_flutter_libs 0.5.20 [flutter]
- sticky_headers 0.3.0+2 [flutter]
- synchronized 3.1.0+1
- tab_indicator_styler 2.0.0 [flutter]
- timezone 0.9.2 [path]
- tutorial 1.0.9 [flutter]
- url_launcher 6.2.5 [flutter url_launcher_android url_launcher_ios url_launcher_linux url_launcher_macos url_launcher_platform_interface url_launcher_web url_launcher_windows]
- uuid 3.0.7 [crypto]
- window_manager 0.3.8 [flutter path screen_retriever]

dev dependencies:
- build_runner 2.4.9 [analyzer args async build build_config build_daemon build_resolvers build_runner_core code_builder collection crypto dart_style frontend_server_client glob graphs http_multi_server io js logging meta mime package_config path pool pub_semver pubspec_parse shelf shelf_web_socket stack_trace 
stream_transform timing watcher web_socket_channel yaml]
- flutter_lints 3.0.2 [lints]
- json_serializable 6.7.1 [analyzer async build build_config collection json_annotation meta path pub_semver pubspec_parse source_gen source_helper]

transitive dependencies:
- _fe_analyzer_shared 67.0.0 [meta]
- _flutterfire_internals 1.3.32 [collection firebase_core firebase_core_platform_interface flutter meta]
- analyzer 6.4.1 [_fe_analyzer_shared collection convert crypto glob meta package_config path pub_semver source_span watcher yaml]
- args 2.4.2
- asn1lib 1.5.2
- async 2.11.0 [collection meta]
- auto_size_text 3.0.0 [flutter]
- barcode 2.2.6 [meta qr]
- bidi 2.0.10
- boolean_selector 2.1.1 [source_span string_scanner]
- build 2.4.1 [analyzer async convert crypto glob logging meta package_config path]
- build_config 1.1.1 [checked_yaml json_annotation path pubspec_parse yaml]
- build_daemon 4.0.1 [built_collection built_value crypto http_multi_server logging path pool shelf shelf_web_socket stream_transform watcher web_socket_channel]
- build_resolvers 2.4.2 [analyzer async build collection convert crypto graphs logging package_config path pool pub_semver stream_transform yaml]
- build_runner_core 7.3.0 [async build build_config build_resolvers collection convert crypto glob graphs json_annotation logging meta package_config path pool timing watcher yaml]
- built_collection 5.1.1
- built_value 8.9.2 [built_collection collection fixnum meta]
- cached_network_image_platform_interface 4.0.0 [flutter flutter_cache_manager]
- cached_network_image_web 1.1.1 [cached_network_image_platform_interface flutter flutter_cache_manager]
- characters 1.3.0
- checked_yaml 2.0.3 [json_annotation source_span yaml]
- clock 1.1.1
- cloud_firestore_platform_interface 6.2.2 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- cloud_firestore_web 3.12.2 [_flutterfire_internals cloud_firestore_platform_interface collection firebase_core firebase_core_web flutter flutter_web_plugins]
- code_builder 4.10.0 [built_collection built_value collection matcher meta]
- community_charts_common 1.0.2 [intl collection meta vector_math]
- community_charts_flutter 1.0.2 [collection meta community_charts_common flutter]
- convert 3.1.1 [typed_data]
- cross_file 0.3.4+1 [meta web]
- dart_style 2.3.6 [analyzer args collection path pub_semver source_span]
- dbus 0.7.10 [args ffi meta xml]
- device_frame 1.1.0 [freezed_annotation flutter]
- device_info_plus_platform_interface 7.0.0 [flutter meta plugin_platform_interface]
- equatable 2.0.5 [collection meta]
- expressions 0.2.5+1 [quiver petitparser rxdart meta]
- fake_async 1.3.1 [clock collection]
- ffi 2.1.2
- file 7.0.0 [meta path]
- file_selector_linux 0.9.2+1 [cross_file file_selector_platform_interface flutter]
- file_selector_macos 0.9.3+3 [cross_file file_selector_platform_interface flutter]
- file_selector_platform_interface 2.6.2 [cross_file flutter http plugin_platform_interface]
- file_selector_windows 0.9.3+1 [cross_file file_selector_platform_interface flutter]
- firebase_auth_platform_interface 7.2.5 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- firebase_auth_web 5.11.4 [firebase_auth_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins http_parser meta web]
- firebase_core_platform_interface 5.0.0 [collection flutter flutter_test meta plugin_platform_interface]
- firebase_core_web 2.16.0 [firebase_core_platform_interface flutter flutter_web_plugins meta web]
- firebase_crashlytics_platform_interface 3.6.28 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- firebase_messaging_platform_interface 4.5.30 [_flutterfire_internals firebase_core flutter meta plugin_platform_interface]
- firebase_messaging_web 3.8.0 [_flutterfire_internals firebase_core firebase_core_web firebase_messaging_platform_interface flutter flutter_web_plugins meta web]
- firebase_storage_platform_interface 5.1.19 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- firebase_storage_web 3.9.4 [_flutterfire_internals async firebase_core firebase_core_web firebase_storage_platform_interface flutter flutter_web_plugins http meta web]
- fixnum 1.1.0
- flutter_cache_manager 3.3.1 [clock collection file flutter http path path_provider rxdart sqflite uuid]
- flutter_local_notifications_linux 4.0.0+1 [dbus ffi flutter flutter_local_notifications_platform_interface path xdg_directories]
- flutter_local_notifications_platform_interface 7.0.0+1 [flutter plugin_platform_interface]
- flutter_plugin_android_lifecycle 2.0.17 [flutter]
- flutter_secure_storage_linux 1.2.0 [flutter flutter_secure_storage_platform_interface]
- flutter_secure_storage_macos 3.0.1 [flutter flutter_secure_storage_platform_interface]
- flutter_secure_storage_platform_interface 1.0.2 [flutter plugin_platform_interface]
- flutter_secure_storage_web 1.1.2 [flutter flutter_secure_storage_platform_interface flutter_web_plugins js]
- flutter_secure_storage_windows 3.0.0 [ffi flutter flutter_secure_storage_platform_interface path path_provider win32]
- flutter_test 0.0.0 [flutter test_api matcher path fake_async clock stack_trace vector_math leak_tracker_flutter_testing async boolean_selector characters collection leak_tracker leak_tracker_testing material_color_utilities meta source_span stream_channel string_scanner term_glyph vm_service]
- flutter_web_plugins 0.0.0 [flutter characters collection material_color_utilities meta vector_math]
- freezed_annotation 2.4.1 [collection json_annotation meta]
- frontend_server_client 4.0.0 [async path]
- glob 2.1.2 [async collection file path string_scanner]
- google_identity_services_web 0.3.1+1 [meta web]
- google_sign_in 6.2.1 [flutter google_sign_in_android google_sign_in_ios google_sign_in_platform_interface google_sign_in_web]
- google_sign_in_android 6.1.22 [flutter google_sign_in_platform_interface]
- google_sign_in_ios 5.7.5 [flutter google_sign_in_platform_interface]
- google_sign_in_platform_interface 2.4.5 [flutter plugin_platform_interface]
- google_sign_in_web 0.12.4 [flutter flutter_web_plugins google_identity_services_web google_sign_in_platform_interface http web]
- googleapis_auth 1.5.1 [args crypto google_identity_services_web http http_parser]
- graphs 2.3.1 [collection]
- grpc 3.2.4 [archive async crypto fixnum googleapis_auth meta http http2 protobuf clock]
- http 1.2.1 [async http_parser meta web]
- http2 2.3.0
- http_multi_server 3.2.1 [async]
- http_parser 4.0.2 [collection source_span string_scanner typed_data]
- image 4.1.7 [archive meta xml]
- image_cropper_for_web 3.0.0 [flutter flutter_web_plugins image_cropper_platform_interface js]
- image_cropper_platform_interface 5.0.0 [flutter plugin_platform_interface http]
- image_picker_android 0.8.9+5 [flutter flutter_plugin_android_lifecycle image_picker_platform_interface]
- image_picker_for_web 3.0.3 [flutter flutter_web_plugins image_picker_platform_interface mime web]
- image_picker_ios 0.8.9+2 [flutter image_picker_platform_interface]
- image_picker_linux 0.2.1+1 [file_selector_linux file_selector_platform_interface flutter image_picker_platform_interface]
- image_picker_macos 0.2.1+1 [file_selector_macos file_selector_platform_interface flutter image_picker_platform_interface]
- image_picker_platform_interface 2.9.4 [cross_file flutter http plugin_platform_interface]
- image_picker_windows 0.2.1+1 [file_selector_platform_interface file_selector_windows flutter image_picker_platform_interface]
- in_app_purchase_android 0.3.2+1 [collection flutter in_app_purchase_platform_interface json_annotation]
- in_app_purchase_platform_interface 1.3.7 [flutter plugin_platform_interface]
- in_app_purchase_storekit 0.3.13+1 [collection flutter in_app_purchase_platform_interface json_annotation]
- in_app_review_platform_interface 2.0.5 [flutter url_launcher plugin_platform_interface platform]
- io 1.0.4 [meta path string_scanner]
- js 0.6.7 [meta]
- leak_tracker 10.0.0 [clock collection meta path vm_service]
- leak_tracker_flutter_testing 2.0.1 [flutter leak_tracker leak_tracker_testing matcher meta]
- leak_tracker_testing 2.0.1 [leak_tracker matcher meta]
- lints 3.0.0
- local_auth_android 1.0.37 [flutter flutter_plugin_android_lifecycle intl local_auth_platform_interface]
- local_auth_darwin 1.2.2 [flutter intl local_auth_platform_interface]
- local_auth_platform_interface 1.0.10 [flutter plugin_platform_interface]
- local_auth_windows 1.0.10 [flutter local_auth_platform_interface]
- logging 1.2.0
- matcher 0.12.16+1 [async meta stack_trace term_glyph test_api]
- material_color_utilities 0.8.0 [collection]
- meta 1.11.0
- nested 1.0.0 [flutter]
- octo_image 2.0.0 [flutter]
- package_config 2.1.0 [path]
- package_info_plus_platform_interface 2.0.1 [flutter meta plugin_platform_interface]
- password_strength 0.2.0
- path_parsing 1.0.1 [vector_math meta]
- path_provider_android 2.2.2 [flutter path_provider_platform_interface]
- path_provider_foundation 2.3.2 [flutter path_provider_platform_interface]
- path_provider_linux 2.2.1 [ffi flutter path path_provider_platform_interface xdg_directories]
- path_provider_platform_interface 2.1.2 [flutter platform plugin_platform_interface]
- path_provider_windows 2.2.1 [ffi flutter path path_provider_platform_interface win32]
- petitparser 6.0.2 [meta]
- platform 3.1.4
- plugin_platform_interface 2.1.8 [meta]
- pointycastle 3.7.4 [collection convert js]
- pool 1.5.1 [async stack_trace]
- protobuf 3.1.0 [collection fixnum meta]
- pub_semver 2.1.4 [collection meta]
- pubspec_parse 1.2.3 [checked_yaml collection json_annotation pub_semver yaml]
- qr 3.0.1 [meta]
- quiver 3.2.1 [matcher]
- rxdart 0.27.7
- screen_retriever 0.1.9 [flutter]
- shared_preferences_android 2.2.1 [flutter shared_preferences_platform_interface]
- shared_preferences_foundation 2.3.5 [flutter shared_preferences_platform_interface]
- shared_preferences_linux 2.3.2 [file flutter path path_provider_linux path_provider_platform_interface shared_preferences_platform_interface]
- shared_preferences_platform_interface 2.3.2 [flutter plugin_platform_interface]
- shared_preferences_web 2.3.0 [flutter flutter_web_plugins shared_preferences_platform_interface web]
- shared_preferences_windows 2.3.2 [file flutter path path_provider_platform_interface path_provider_windows shared_preferences_platform_interface]
- shelf 1.4.1 [async collection http_parser path stack_trace stream_channel]
- shelf_web_socket 1.0.4 [shelf stream_channel web_socket_channel]
- sky_engine 0.0.99
- source_gen 1.5.0 [analyzer async build dart_style glob path source_span yaml]
- source_helper 1.3.4 [analyzer collection source_gen]
- source_span 1.10.0 [collection path term_glyph]
- sqflite_common 2.5.4 [synchronized path meta]
- sqlite3 2.4.2 [collection ffi js meta path]
- stack_trace 1.11.1 [path]
- stream_channel 2.1.2 [async]
- stream_transform 2.1.0
- string_scanner 1.2.0 [source_span]
- term_glyph 1.2.1
- test_api 0.6.1 [async boolean_selector collection meta source_span stack_trace stream_channel string_scanner term_glyph]
- timing 1.0.1 [json_annotation]
- typed_data 1.3.2 [collection]
- url_launcher_android 6.3.0 [flutter url_launcher_platform_interface]
- url_launcher_ios 6.2.5 [flutter url_launcher_platform_interface]
- url_launcher_linux 3.1.1 [flutter url_launcher_platform_interface]
- url_launcher_macos 3.1.0 [flutter url_launcher_platform_interface]
- url_launcher_platform_interface 2.3.2 [flutter plugin_platform_interface]
- url_launcher_web 2.3.0 [flutter flutter_web_plugins url_launcher_platform_interface web]
- url_launcher_windows 3.1.1 [flutter url_launcher_platform_interface]
- vector_graphics 1.1.11+1 [flutter http vector_graphics_codec]
- vector_graphics_codec 1.1.11+1
- vector_graphics_compiler 1.1.11+1 [args meta path_parsing xml vector_graphics_codec path]
- vector_math 2.1.4
- vm_service 13.0.0
- watcher 1.1.0 [async path]
- web 0.5.1
- web_socket_channel 2.4.4 [async crypto stream_channel web]
- webview_flutter 4.7.0 [flutter webview_flutter_android webview_flutter_platform_interface webview_flutter_wkwebview]
- webview_flutter_android 3.16.0 [flutter webview_flutter_platform_interface]
- webview_flutter_platform_interface 2.10.0 [flutter meta plugin_platform_interface]
- webview_flutter_wkwebview 3.13.0 [flutter path webview_flutter_platform_interface]
- win32 5.4.0 [ffi]
- win32_registry 1.1.2 [ffi win32]
- xdg_directories 1.0.4 [meta path]
- xml 6.5.0 [collection meta petitparser]
- yaml 3.1.2 [collection source_span string_scanner]

Additional context and comments

No response

[russellwheatley]

Hi @ciceromsjr - I'll take a look at this, I'm working on a bunch of changes for firebase storage windows here: #12723