[BUG] Serialization error when 'MessageReceived' activity is used in workflow about elsa-core HOT 9 CLOSED

It appears that you are encountering a serialization issue with the MessageReceived activity in Elsa when using MassTransit with Azure Service Bus. This issue is related to the serialization and deserialization of System.Type instances, which is not supported by System.Text.Json, the default serializer used by Elsa.

To resolve this issue, you can switch to using Newtonsoft.Json for serialization, which does support serializing System.Type instances. You can configure Elsa to use Newtonsoft.Json by adding the appropriate package and configuring the serialization options.

Here are the steps you can follow:

1. Install the Elsa.NewtonsoftJson NuGet package.
2. Configure Elsa to use Newtonsoft.Json by modifying the service registration code in your Startup.cs or Program.cs file, depending on your .NET version.

Here's an example of how you might configure the services:

services
    .AddElsa(elsa => elsa
        .UseEntityFrameworkPersistence(ef => ef.UseSqlite(...))
        .AddConsoleActivities()
        .AddHttpActivities()
        .AddMassTransitActivities()
        .UseNewtonsoftJson() // Use Newtonsoft.Json for serialization
    );

Make sure to replace the ... with your actual Entity Framework configuration or other Elsa configuration as needed.

By making this change, you should be able to avoid the serialization issue you're encountering with System.Type instances.

Please note that the links to the screenshots you provided are not accessible, but the steps above should guide you in resolving the serialization issue based on the error message and the related GitHub issues you've referenced.

This comment was generated by Glime.

from elsa-core.

The suggested solution by AI will not work because Elsa 3 does not have the NuGet package 'Elsa.NewtonsoftJson,' as far as I understand.

Am I missing anything in the 'MessageReceived' activity configuration in the WorkflowDefinition? Please confirm.

from elsa-core.

Looks like a bug. NewtonsoftJson has indeed nothing to do with it.

from elsa-core.

@sfmskywalker
I think the changes in the commit below will resolve this bug. Please share your comments on this.
367f574

from elsa-core.

'MessageReceived' activity is working well in the latest code on the main branch.

I downloaded the latest Elsa code from the main branch and checked it with my changes. The 'Message Received' activity is receiving messages from 'Azure Service Bus' without any problem with serialization.

I am not sure which change solved the issue. Please let me know if someone knows the commit that solves the issue.

I believe these changes will be included in version 3.2, which is scheduled for release on June 1, 2024.

Please confirm the same

from elsa-core.

@cvijayak your guess is as good as mine, my friend. And yes, the code in the main branch will be released into 3.2.

from elsa-core.

Closing this issue, given that this doesn't seem to be reproducible with the source code version,

from elsa-core.

I'm having this issue. Any help with the solution? I'm new to Elsa Workflow and I'm using 3.1

from elsa-core.

This should be fixed as of 3.2 (3.2-rc3 is available via nuget in case you want to try).

from elsa-core.