[HACKTOBERFEST] Improve File Upload Progress Indicator in Flutter App

[Ashish-Kumar-Dash]

The current Flutter app upload button lacks feedback on upload progress. Implement a progress indicator (e.g., a progress bar or circular indicator) showing the percentage of file uploaded in real-time. This will improve UX by informing users about upload status, especially for large files. Use existing packages like http's MultipartRequest with progress callbacks or third-party libraries.

[Kishankumar-10]

Hii , I’d like to work on this enhancement.
I plan to implement a progress indicator for file uploads using http.MultipartRequest (with a fallback option to use dio if preferred).
The UI will show a linear/circular progress indicator with percentage feedback until the upload completes.
Could you please assign this issue to me?

[Ashish-Kumar-Dash]

Hey @Kishankumar-10 , get familiar with the codebase and right now the app doesnt work on android emulator because of deprecated gradle files. You can check your work by running it on chrome instead. Also, if you wish to remove the deprecation errors and get it to run on android emulator, lemme know if you are interested so I can make a seperate issue for it. Join the discord(link given in contributing guidelines)

[Kishankumar-10]

Thanks for the guidance! 🙌
I’ll start by getting familiar with the codebase and testing it on Chrome. Also, I’d be happy to work on fixing the deprecated Gradle files so the app runs on the Android emulator. Please create a separate issue for that, and I’ll take it up.
Meanwhile, I’ll also join the Discord to stay in touch with the community.

[Ashish-Kumar-Dash]

@Kishankumar-10 I will deassign you from this issue if a PR isn't pulled by the weekend

[viswajith-ks]

please assign this to me. for debugging purposes i deleted the android folder and a fresh one was generated with "flutter create ."
is there anything i should know?

[Ashish-Kumar-Dash]

I will assign you soon, after PR #29 is merged which will enable the app to run on emulator providing a more refined platform for you to test your changes

[viswajith-ks]

is the master branch working. i just tried uploading and downloading, it gives me a 403 error. can someone guide me on this. is there something i need to do as environment setup?

[Ashish-Kumar-Dash]

Please go through the README on how to get the app to work. If there is still any issue, please attach a ss and a detailed log of whats happening. We can't help you if you describe the problems in layman terms. Also, try to check the changes made by working in the web version only, the emulator still has some issues.

[viswajith-ks]

attaching a long log i dont see any problem except the env but it falls back right. feel free to unassign me ill just concentrate on the ui issues i guess.

viswa@PZNoteBook MINGW64 /d/Desktop/cats/github/osc/temp/File-Sharing-App (enhancement/update-ui)
$ docker-compose logs
file-sharing-frontend | /docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
file-sharing-frontend | /docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
file-sharing-frontend | /docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
file-sharing-frontend | 10-listen-on-ipv6-by-default.sh: info: Getting the checksum of /etc/nginx/conf.d/default.conf
file-sharing-frontend | 10-listen-on-ipv6-by-default.sh: info: Enabled listen on IPv6 in /etc/nginx/conf.d/default.conf
file-sharing-frontend | /docker-entrypoint.sh: Sourcing /docker-entrypoint.d/15-local-resolvers.envsh
file-sharing-frontend | /docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
file-sharing-frontend | /docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
file-sharing-frontend | /docker-entrypoint.sh: Configuration complete; ready for start up
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:18:33 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:18:57 +0000] "GET / HTTP/1.1" 200 1876 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:18:57 +0000] "GET /flutter_service_worker.js?v=517851897 HTTP/1.1" 200 8284 "http://localhost:3000/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:18:57 +0000] "GET /index.html HTTP/1.1" 200 1876 "http://localhost:3000/flutter_service_worker.js?v=517851897" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:18:57 +0000] "GET /main.dart.js HTTP/1.1" 200 2449480 "http://localhost:3000/flutter_service_worker.js?v=517851897" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:18:57 +0000] "GET /assets/AssetManifest.bin.json HTTP/1.1" 200 158 "http://localhost:3000/flutter_service_worker.js?v=517851897" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:18:57 +0000] "GET /flutter_bootstrap.js HTTP/1.1" 200 9589 "http://localhost:3000/flutter_service_worker.js?v=517851897" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:18:57 +0000] "GET /assets/FontManifest.json HTTP/1.1" 200 208 "http://localhost:3000/flutter_service_worker.js?v=517851897" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:18:58 +0000] "GET /flutter_service_worker.js?v=517851897 HTTP/1.1" 304 0 "http://localhost:3000/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:18:59 +0000] "GET /assets/fonts/MaterialIcons-Regular.otf HTTP/1.1" 200 8784 "http://localhost:3000/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:19:03 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:19:34 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:20:04 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | /docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
file-sharing-frontend | /docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
file-sharing-frontend | /docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
file-sharing-backend | Error loading .env file: open .env: no such file or directory
file-sharing-minio | INFO: Formatting 1st pool, 1 set(s), 1 drives per set.
file-sharing-frontend | 10-listen-on-ipv6-by-default.sh: info: IPv6 listen already enabled
file-sharing-backend | Server starting on :8000
file-sharing-backend | Error loading .env file: open .env: no such file or directory
file-sharing-frontend | /docker-entrypoint.sh: Sourcing /docker-entrypoint.d/15-local-resolvers.envsh
file-sharing-frontend | /docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
file-sharing-frontend | /docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
file-sharing-frontend | /docker-entrypoint.sh: Configuration complete; ready for start up
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:20:52 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:21:22 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:21:25 +0000] "GET / HTTP/1.1" 200 1876 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-minio | INFO: WARNING: Host local has more than 0 drives of set. A host failure will result in data becoming unavailable.
file-sharing-minio | MinIO Object Storage Server
file-sharing-minio | Copyright: 2015-2025 MinIO, Inc.
file-sharing-minio | License: GNU AGPLv3 - https://www.gnu.org/licenses/agpl-3.0.html
file-sharing-minio | Version: RELEASE.2024-09-13T20-26-02Z (go1.22.7 linux/amd64)
file-sharing-minio |
file-sharing-minio | API: http://172.18.0.2:9000 http://127.0.0.1:9000
file-sharing-minio | WebUI: http://172.18.0.2:9001 http://127.0.0.1:9001
file-sharing-minio |
file-sharing-minio | Docs: https://docs.min.io
file-sharing-minio | INFO:
file-sharing-minio | You are running an older version of MinIO released 11 months before the latest release
file-sharing-minio | Update: Run mc admin update ALIAS
file-sharing-minio |
file-sharing-minio |
file-sharing-minio | INFO: Exiting on signal: TERMINATED
file-sharing-minio | MinIO Object Storage Server
file-sharing-backend | Server starting on :8000
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:21:28 +0000] "GET /flutter_service_worker.js?v=517851897 HTTP/1.1" 304 0 "http://localhost:3000/flutter_service_worker.js?v=517851897" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:21:32 +0000] "GET / HTTP/1.1" 200 1876 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:21:40 +0000] "GET /flutter_service_worker.js?v=517851897 HTTP/1.1" 304 0 "http://localhost:3000/flutter_service_worker.js?v=517851897" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:21:52 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:22:22 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:22:52 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:23:22 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:23:52 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:23:56 +0000] "GET / HTTP/1.1" 200 1876 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:24:00 +0000] "GET /flutter_service_worker.js?v=517851897 HTTP/1.1" 304 0 "http://localhost:3000/flutter_service_worker.js?v=517851897" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:24:22 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:24:52 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:25:01 +0000] "GET / HTTP/1.1" 200 1876 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:25:03 +0000] "GET /flutter_service_worker.js?v=517851897 HTTP/1.1" 304 0 "http://localhost:3000/flutter_service_worker.js?v=517851897" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:25:23 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:25:53 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:26:21 +0000] "GET / HTTP/1.1" 200 1876 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:26:23 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 172.18.0.1 - - [18/Oct/2025:12:26:23 +0000] "GET /flutter_service_worker.js?v=517851897 HTTP/1.1" 304 0 "http://localhost:3000/flutter_service_worker.js?v=517851897" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0"
file-sharing-minio | Copyright: 2015-2025 MinIO, Inc.
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:26:53 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-frontend | 127.0.0.1 - - [18/Oct/2025:12:27:23 +0000] "GET / HTTP/1.1" 200 1876 "-" "Wget"
file-sharing-minio | License: GNU AGPLv3 - https://www.gnu.org/licenses/agpl-3.0.html
file-sharing-minio | Version: RELEASE.2024-09-13T20-26-02Z (go1.22.7 linux/amd64)
file-sharing-minio |
file-sharing-minio | API: http://172.18.0.2:9000 http://127.0.0.1:9000
file-sharing-minio | WebUI: http://172.18.0.2:9001 http://127.0.0.1:9001
file-sharing-minio |
file-sharing-minio | Docs: https://docs.min.io
file-sharing-minio | INFO:
file-sharing-minio | You are running an older version of MinIO released 11 months before the latest release
file-sharing-minio | Update: Run mc admin update ALIAS
file-sharing-minio |
file-sharing-minio |

[viswajith-ks]

$ flutter build apk
Font asset "MaterialIcons-Regular.otf" was tree-shaken, reducing it from 1645184 to 2476 bytes (99.8% reduction). Tree-shaking can be disabled by providing the --no-tree-shake-icons flag when building your app.
Running Gradle task 'assembleRelease'... 162.3s
Gradle build failed to produce an .apk file. It's likely that this file was generated under D:\Desktop\cats\github\osc\temp\File-Sharing-App\filesharing\build, but the tool
couldn't find it.

$ flutter --version
Flutter 3.35.6 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 9f455d2486 (10 days ago) • 2025-10-08 14:55:31 -0500
Engine • hash a5f2c36e367c13f868cfe98db5806f562c52c35e (revision d2913632a4) (10 days ago) • 2025-10-07 17:26:21.000Z
Tools • Dart 3.9.2 • DevTools 2.48.0

$ docker --version
Docker version 28.5.1, build e180ab8

$ java --version
java 21.0.2 2024-01-16 LTS
Java(TM) SE Runtime Environment (build 21.0.2+13-LTS-58)
Java HotSpot(TM) 64-Bit Server VM (build 21.0.2+13-LTS-58, mixed mode, sharing)

i can temporarily fix this one tho so no issue.