React Native 0.82 Fetch Issues fetching local file
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Beschreibung
Description
When trying to fetch a file from the device and turn it into a blob with default fetch shipped within RN 0.82.0, fetch issues a TypeError. Also other methods to fetch the file from the device fail.
The code used for this:
const response = await fetch(image.path)
const blob = await response.blob()
Response:
Error: Uncaught (in promise, id: 1): "TypeError: Network request failed"
I used to used this throughout all RN versions I previously used and it doesnt work since upgrading from 0.73.6 to 0.82.0.
If I implement it with the formdata approach that I find on multiple sources, the upload succeeds but I get corrupted files.
const formData = new FormData()
formData.append('file', {
type: mime.getType(image.path),
uri: image.path,
name: image.fileName,
});
If I use the XMLHttpRequest approach I get errors as well.
To me it seems something changed regarding to accessing files/uri's on a device, yet I find 0 sources on it.
I changed all necessary permissions to match current latest approach.
I also added a reproducer with all 3 of the methods I described.
You will need an endpoint to upload a file for the reproducer.
Does anybody know what I am doing wrong?
Steps to reproduce
- install packages
- start app
- supply an api url to the fetch methods
- pick an image
- press upload image
React Native Version
0.82.0
Affected Platforms
Runtime - Android
Output of npx @react-native-community/cli info
System:
OS: macOS 15.5
CPU: (8) arm64 Apple M2
Memory: 137.97 MB / 8.00 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 24.6.0
path: /Users/alexander/.nvm/versions/node/v24.6.0/bin/node
Yarn:
version: 1.22.22
path: /Users/alexander/.nvm/versions/node/v24.6.0/bin/yarn
npm:
version: 11.5.1
path: /Users/alexander/.nvm/versions/node/v24.6.0/bin/npm
Watchman:
version: 2024.04.01.00
path: /opt/homebrew/bin/watchman
Managers:
CocoaPods:
version: 1.14.3
path: /usr/local/bin/pod
SDKs:
iOS SDK:
Platforms:
- DriverKit 24.4
- iOS 18.4
- macOS 15.4
- tvOS 18.4
- visionOS 2.4
- watchOS 11.4
Android SDK:
API Levels:
- "31"
- "33"
- "34"
- "35"
- "36"
Build Tools:
- 30.0.3
- 33.0.0
- 33.0.1
- 34.0.0
- 35.0.0
- 36.0.0
System Images:
- android-34 | Google APIs ARM 64 v8a
Android NDK: Not Found
IDEs:
Android Studio: 2024.1 AI-241.18034.62.2411.12169540
Xcode:
version: 16.3/16E140
path: /usr/bin/xcodebuild
Languages:
Java:
version: 17.0.10
path: /usr/bin/javac
Ruby:
version: 2.6.10
path: /usr/bin/ruby
npmPackages:
"@react-native-community/cli":
installed: 20.0.0
wanted: 20.0.0
react:
installed: 19.1.1
wanted: 19.1.1
react-native:
installed: 0.82.0
wanted: 0.82.0
react-native-macos: Not Found
npmGlobalPackages:
"*react-native*": Not Found
Android:
hermesEnabled: true
newArchEnabled: true
iOS:
hermesEnabled: true
newArchEnabled: true
Stacktrace or Logs
Error: Uncaught (in promise, id: 1): "TypeError: Network request failed"
at onUnhandled (&platform=android&dev=true&lazy=true&minify=false&app=com.awesomeproject&modulesOnly=false&runModul…:22082:59)
at onUnhandled (address at InternalBytecode.js:1:3386)Caused by: TypeError: Network request failed
at anonymous (&platform=android&dev=true&lazy=true&minify=false&app=com.awesomeproject&modulesOnly=false&runModul…:24029:33)
MANDATORY Reproducer
https://github.com/IR-Baboon/reproducer
Screenshots and Videos
No response
Beitragsleitfaden
Erste Schritte
- Lies das ganze Issue und danach den Beitragsleitfaden des Projekts.
- Schreib ins Issue, dass du es übernimmst — das erspart doppelte Arbeit.
- Forke das Repository und arbeite in einem Branch.
- Öffne einen Pull Request, der die Issue-Nummer nennt.
Rechercherichtung
Beginne mit dem verknüpften Reproducer und führe seine drei Upload-Methoden auf Android mit React Native 0.82.0 unter Verwendung eines Upload-Endpunkts wie beschrieben aus. Vergleiche dasselbe Verhalten von fetch mit einer lokalen Datei und von blob mit der gemeldeten Version 0.73.6. Abgeschlossen ist die Aufgabe, wenn das geänderte Verhalten von Datei-URIs identifiziert wurde und bestätigt ist, dass der Upload lokaler Dateien funktioniert, oder die unterstützte Einschränkung dokumentiert wurde.
Vom Indexierungsmodell aus dem Issue-Text verfasst.
Bewertung
- Tech-Stack
- android, react-native
- Bereich
- mobile
- Issue-Typ
- Bug
- Schwierigkeit
- 4/5
- Geschätzter Aufwand
- 3-5 Tage
- Aktivitätsstatus
- Ruhig
- Klarheit
- Muss geklärt werden
- Anfängerfreundlichkeit
- 42/100