Azure-functions-host: Help wanted with update to 4.7.2 System.Text.Json

[vitalybibikov]

Hello,
Help wanted.

I'm developing Swagger documentation package for Azure Functions, which is dependent on

Microsoft.Azure.WebJobs.Extensions.Http
Microsoft.Azure.Functions.Extensions

packages

Currently, it's not possible for me to update the version System.Text.Json. from 4.7.0 => 4.7.2 (or 4.7.1, 5.0.0) as I'm getting the following error:

'Method not found: 'Void Microsoft.AspNetCore.Mvc.Formatters.SystemTextJsonOutputFormatter..ctor(System.Text.Json.JsonSerializerOptions)'.'

The issue is described here: https://github.com/vitalybibikov/AzureExtensions.Swashbuckle/issues/30

Repro steps

Provide the steps required to reproduce the problem

1. Download the repo (https://github.com/vitalybibikov/AzureExtensions.Swashbuckle/tree/dev)

2. Update from 4.7.0 to 4.7.2 both TestFunction and AzureFunctions.Extensions.Swashbuckle

   • When only AzureFunctions.Extensions.Swashbuckle is updated to 4.7.2, while TestFunction is using 4.7.0 it works.

3. Start the project.

Expected behavior

Works

Actual behavior

'Method not found: 'Void Microsoft.AspNetCore.Mvc.Formatters.SystemTextJsonOutputFormatter..ctor(System.Text.Json.JsonSerializerOptions)'.'

Related information

I was trying to investigate it is much as possible in here => https://github.com/vitalybibikov/AzureExtensions.Swashbuckle/tree/branch/trying-update-json

I have substituted SystemTextJsonOutputFormatter with my version => SystemTextJsonOutputFormatter2, which uses it's own TranscodingWriteStream, as they are both sealed and internal, it was not possible to override anything.

Now it fails during function call => http://localhost:7071/api/Swagger/ui
though with the same error:

I think, that is related to the fact that one of these projects has not been updated fully.

• System.Text.Json 4.7.2

[vitalybibikov]

Hi,

Any updates on this one?

@v-anvari @fabiocav

[vitalybibikov]

Hi,

Any updates on this one?

@v-anvari @fabiocav

[vitalybibikov]

Hi,

Any updates on this one?

@v-anvari @fabiocav

[fabiocav]

Apologies for the delayed response here.

This is a reasonable request. I'll move it to the host repo, where we'd have to address this (that's the component performing the unification) and track it for the next sprint.

[DarinMacRae]

I just ran into this. Ugh. I brought in HtmlTags package which depends on System.Text.Json >= 5.0.0. I guess no Swagger docs for this function app for now. :(

Are there any workarounds (ugly or not) that you've found in the meantime? @fabiocav @vitalybibikov

[fabiocav]

The current release is locked with multiple sprints. Pushing this to the next sprint as it will be part of a separate release.