UploadedFile List not being passed to api calls.

[ISHA7782]

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Expected behavior (required)

With flutter flow, We should be able to pass multiple uploaded files to api server.

Current behavior (required)

From App UI , I am trying to pass uploaded file list to API.
My api call is receiving "[]" as req input, instead of files. My api type is multipart.
Same call is working from postman.

To Reproduce (required)

For example, "project fails to build" could be better reported as:

1. Create Multipart API call with one of input as list of uploadedFile
2. Try adding action from any widget, and call the api.
3. Check the request input using developer/inspect tools
4. API request uploaded file list is always []

Bug Report Code (required, generate by right clicking inside Widget Tree and clicking "Get Bug Report Code")

Not related to particular widget, related to action -

ITEek/H15c9NtbxI+qn2bsFFmQMwGkQ5a7sviu5+FBQaI+KvEYouf8zCYRZWcuqHY2xYIlWWgkEH/96LjuHLEsEFEEycR7U4/5FtH1yjEA8=

Context (required)

• Prod scenario for one of the project to upload multiple files, blocking the release.

Screenshots / recordings

Chrome requests -

Postman call succeed

Your environment

• Version of FlutterFlow used: Latest 3.7.3
• Platform (e.g. Web, MacOS Desktop): MAC Version 12.5
• Browser name and version: CHROME Version 108.0.5359.124 (Official Build) (arm64)
• Operating system and version (desktop or mobile): desktop

Here is the my analysis on the issue -

Things work if i pass single file rather than list.
So, when flutterflow is generating a code with list, it calling the _serializeList

This is code from
api_calls.dart - final projectAssets = _serializeList(projectAssetsList);
As part of this method, always [] is returned.

Method -

String _serializeList(List? list) {
list ??= <String>[];
try {
return json.encode(list);
} catch (_) {
return '[]';
}
}

json.encode wont work , as the we need to call the serialize with custom file type.

May be something like this

final projectAssets =
        serializeParam(projectAssetsList, ParamType.FFUploadedFile, true);

My project ID - https://app.flutterflow.io/project/edith-q53ple

page - AddProject.

project build - https://app.flutterflow.io/run/IXcYKEjjhwRUe2abg5Qv

[organicnz]

Hi @ISHA7782. Thank you for adding this issue 🙂

Could you please add reproducible steps so we can check it out? :)

[ISHA7782]

Hi @organicnz , added the steps.

[Shouri]

@organicnz this is very basic and essential usecase and is blocking us. Request you to address it on priority. If there is a work around we are more than happy to try and proceed.

[agreaves]

Hi @ISHA7782, thanks for the bug report! I've applied a fix that should be present in the next release. I can confirm that the arguments are now being passed in correctly, however I do not have a Multipart request API to test to be 100% sure that it is working properly end to end. Please re-open this ticket (or create a new one) if you find that something else is going wrong. Thanks!

[Shouri]

@agreaves when would the release be available for public consumption.

[prash4nth]

I am facing the same problem even with single image files