在universal_io上使用Flutter Web 问题上传图像 Supabase Storage

Question

我正在尝试在 Supabase Storage 中上传图像，并且我正在使用此方法作为文档：

supabase.storage.from('avatars').upload(fileName,file)

这里的文件是： var file = File(_session.photoFilePath;): // import'package.universal_io/io;dart'

和path in print:是blob:http://localhost:55914/eff9c2bb-061f-4577-bf00-eff523029635

还有_session.photoFileName: in print是tiger.jpeg

我已经登录并且我有权在头像预算中上传图片。 当我运行时没有任何错误或警告supabase.storage.from('avatars').upload(_session.photoFileName, file)

我收到了这个错误：

UnimplementedError
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 266:49      throw_
packages/universal_io/src/io/file.dart 225:7                                      new
packages/fr_panel/view/session_page.dart 351:42                                   <fn>
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 84:54                runBody
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 123:5                _async
packages/fr_panel/view/session_page.dart 348:38                                   <fn>
packages/fr_panel/widgets/next_button.dart 40:27                                  <fn>
packages/flutter/src/widgets/framework.dart 1114:30                               setState
packages/fr_panel/widgets/next_button.dart 39:9                                   <fn>
packages/flutter/src/material/ink_well.dart 1072:21                               handleTap
packages/flutter/src/gestures/recognizer.dart 253:24                              invokeCallback
packages/flutter/src/gestures/tap.dart 627:11                                     handleTapUp
packages/flutter/src/gestures/tap.dart 306:5                                      [_checkUp]
packages/flutter/src/gestures/tap.dart 239:7                                      handlePrimaryPointer
packages/flutter/src/gestures/recognizer.dart 615:9                               handleEvent
packages/flutter/src/gestures/pointer_router.dart 98:12                           [_dispatch]
packages/flutter/src/gestures/pointer_router.dart 143:9                           <fn>
dart-sdk/lib/_internal/js_dev_runtime/private/linked_hash_map.dart 21:13          forEach
packages/flutter/src/gestures/pointer_router.dart 141:17                          [_dispatchEventToRoutes]
packages/flutter/src/gestures/pointer_router.dart 127:7                           route
packages/flutter/src/gestures/binding.dart 460:19                                 handleEvent
packages/flutter/src/gestures/binding.dart 440:14                                 dispatchEvent
packages/flutter/src/rendering/binding.dart 337:11                                dispatchEvent
packages/flutter/src/gestures/binding.dart 395:7                                  [_handlePointerEventImmediately]
packages/flutter/src/gestures/binding.dart 357:5                                  handlePointerEvent
packages/flutter/src/gestures/binding.dart 314:7                                  [_flushPointerEventQueue]
packages/flutter/src/gestures/binding.dart 295:7                                  [_handlePointerDataPacket]
lib/_engine/engine/platform_dispatcher.dart 1183:13                               invoke1
lib/_engine/engine/platform_dispatcher.dart 244:5                                 invokeOnPointerDataPacket
lib/_engine/engine/pointer_binding.dart 147:39                                    [_onPointerData]
lib/_engine/engine/pointer_binding.dart 653:20                                    <fn>
lib/_engine/engine/pointer_binding.dart 594:14                                    <fn>
lib/_engine/engine/pointer_binding.dart 288:16                                    loggedHandler
lib/_engine/engine/pointer_binding.dart 179:80                                    <fn>
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 334:14  _checkAndCall
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 339:39  dcall

如您所知，这是由于文件库而发生的。 我不能使用'dart:io' ，因为它不适用于 Flutter Web。 Supabase 上传图像方法接受来自'package:universal_io/io.dart' from universal_io: ^2.0.4并且当运行function 时，会发生此问题。 您对如何解决此问题以及如何上传 supabase 存储有任何想法吗？

我的 flutter 医生：

    Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel master, 3.1.0-0.0.pre.1698, on macOS 13.0 22A5286j darwin-arm, locale en-TR)
[✓] Android toolchain - develop for Android devices (Android SDK version 32.1.0-rc1)
[✓] Xcode - develop for iOS and macOS (Xcode 14.0)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2021.1)
[✓] VS Code (version 1.69.2)
[✓] Connected device (2 available)
[✓] HTTP Host Availability

• No issues found!

谢谢

Answer 1

.upload()方法不能很好地与 Flutter web 配合使用。 对于 Flutter web，您可以使用.uploadBinary()方法，如下所示：

import'package:universal_io/io.dart';

final file = File('path/to/file');
final fileBytes = await file.readAsBytes();
await Supabase.instance.client.storage
    .from('avatars')
    .uploadBinary(filePath, fileBytes);

我们将更新 Supabase 文档，因为这没有很好的记录。