In order to verify whether entities have been persisted correctly you want to connect to the used MongoDB so that you can lookup the data in the database. To do this, a connection to MongoDB from your local machine must be established.
You have defined different Spring Boot profiles for your Java Domain Service service and want to activate one of them when deploying the service through an application composition project in order to apply a specific bunch of configurations.
If you already have a running service and you want to connect to the external service. To establish the connection between these two services, you have to manually add the certificate in order to secure the connection between them.
You have developed a microservice and have a ready to use helm chart and image available.
Content on this page reflects earlier versions of the and will be updated soon.
In this document you can find some best practice code samples that might be helpful while writing code for Java domain service projects.
If a Service is deployed through an Application, changes made in the design or the implementation of the Service will not automatically be reflected in the deployed Application. Instead, the Application needs to be explicitly adapted to use a newer version of the Service component in order to apply the changes.
Perform authentication checks for your services in an efficient way by implementing fine-grained request-level authorization using Open Policy Agent (OPA) and Envoy sidecars.
In this hands-on trial, you will bootstrap a production-ready microservice from a
You want to implement LRA-Coordinator and use it within a Saga application composition project. In this how-to, you will learn how to import the LRA-Coordinator asset into IBM and build the LRA coordinator project with custom tekton pipelines.
You have already deployed services and want to check the logs for one of them after deploying through a deploy pipeline or through an application composition project.
Content on this page reflects earlier versions of the and will be updated soon.
Configure Istio in mTLS mode for secure service-to-service communication.
While running your application, sometimes you need to output some information about the application behaviour in a certain way, this is called application logging. There are different detail levels of logging that you can configure based on the data you need.
You want to consume an Event from a Service that has already been published so that you can implement logic that is executed when the Event is triggered.
You have a TypeScript or JavaScript project and want to create a valid UUID in order to use it as an unique identifier for an object.
You want to create a custom pipeline tailored to your specific industry needs and operational requirements to enhance efficiency.
You want to deploy a solution you built with to an OpenShift© cluster different from the one is installed on.
I have a Domain Service project with Event publishing inside and I want to debug e.g. the event-publishing Command. How can I debug my Command and see whether my Event was published correctly?
When working with Domain services mapping between api namespace and domain namespace is often needed, for example :
When working with Domain services, mapping between api namespace and domain namespace is often needed, for example :
You have developed a project and want to share it in an asset catalog or you want to create a project from an existing asset and want to make sure you have the required permissions.
You already have an existing Java Domain service, you want to include unit testing for that service.
You want to write unit tests without having access to all of the infrastructure which can be achieved by mocking which is described here in this How-To.
You want to disable security checks for REST endpoints or even the entire service in your project for a specific reason.
Your web browser is designed to by default disable Cross Origin Resource Sharing (CORS) which allows sharing data across different origins ; i.e. the combination of scheme, domain and port. There are some situations where you will need to enable CORS and this can be done across a whole project (Deployment target), for a certain service or for a component in your composed application.
Keycloack tokens are used to authenticate the services that are being developed. They have a default timeout validity and hence during development you might get several errors resulting from an expired token. To avoid these errors, you can extend the authentication token validity in your Keycloack settings. This How-To will cover the necessary steps to extend your Keycloak token validity.
You have an already existing Java Domain Service and you want to retrieve root entities by complex filter criterias. To achieve this, the generated Repository class has to be extended.
In this hands-on trial, you will use the Design Assistant to explore an existing design model, identify what's missing for a new requirement, and extend it — all in plain language, without leaving the designer.
In this hands-on trial, you will implement the same requirement twice — first with your coding assistant alone, then with structured design context from Workbench.
Obtain a JWT token from Keycloak to authenticate REST API calls from IBM BAW to .
You have designed API operations with more than just one resoponse to cover both the success and error case. In your implementation code you want to return a specific response body if an error happens.
You have an asset that was created externally and you want to import into the Workbench and then create a project based on the imported asset. In this How-To, we will import the Narayana LRA Coordinator service and use it within a saga application composition project as an example.
Integrate Gen AI service into your Java application.
Integrate Git services with your Jira board to track development tasks and activities.
Set up a WebSocket server in your Domain Java service using Java Stack 2.0 to enable real-time bidirectional communication.
You have built an API with and published it so that it can be consumed by other services. Due to new requirements you want to introduce a breaking change without breaching the API contract. To introduce breaking changes it is recommended to create a new version of your API.
A Pod is a group of one or more containers that shares network resources, storage and configuration. While deployment or debugging, it is very essential that the containers have enough resources to run. Sometimes, it has limited resources and the node runs out of memory and other times the applications take more resources than they should. This How-To will cover the necessary configuration steps to limit pods in your deployed solution.
In this hands-on trial, you will customise the Workbench modelling language to match your organisation's vocabulary — so people in various roles can work in the same place without learning each other's notation.
In this course, you'll learn how to create and manage workspaces within the .
You have developed a service project in one system and want to move it to another design environment to use it there or continue development.
To debug your Java Solution, you can debug them in a number of ways. JUnit is one of them, and using the docker images for the events locally is another method. For more info, please see here.
In order to integrate an event against Kafka, you need to publish an event to a Kafka topic.
The section below describes Project Types based on
You want to deploy your built frontend through an application in the Workbench and provide a route for it so that it is ready to use.
You have implemented changes in your Service and want to release them so that the new version could be used in an Application.
You want to run Java services built with the Workbench locally by use of the tool mirrord.
You want to share the current state of a project so that it can be used for jumpstarting development of a service.
In this hands-on trial, you will import an existing codebase into the Workbench designer using reverse engineering — turning code into a structured design model you can refine and build on.
Content on this page reflects earlier versions of the and will be updated soon.
Content on this page reflects earlier versions of the and will be updated soon.
Content on this page reflects earlier versions of the and will be updated soon.
Content on this page reflects earlier versions of the and will be updated soon.
Content on this page reflects earlier versions of the and will be updated soon.
Content on this page reflects earlier versions of the and will be updated soon.
Content on this page reflects earlier versions of the and will be updated soon.
Content on this page reflects earlier versions of the and will be updated soon.
Content on this page reflects earlier versions of the and will be updated soon.
Content on this page reflects earlier versions of the and will be updated soon.
Content on this page reflects earlier versions of the and will be updated soon.
Content on this page reflects earlier versions of the and will be updated soon.
Content on this page reflects earlier versions of the and will be updated soon.
You want to use a different Identity provider than the default one.
You have a Domain Service Java project and want to do local debugging.
You're using or want to use Coding Assistants with the Workbench? Start with this quick introduction,
You already have an existing Spring Boot application which you want to transform to a Project to use the benefits of the Workbench.
You want to create robust data models that reflect the structure of relational databases using the .
Coming soon
For your asychronous communications within and between services, you want to establish well defined "contracts" of the event payload data for everyone to use by means of using the new schema registry supported feature in .
An External Entity is considered a proxy of an entity that is managed by another microservice. Normally, the external entity contains only the most important data that is regularly needed in the context of the aggregate to which the external entity belongs. Because of these specifics, it is handled differently than a usual Entity.
You want to deploy a Java service to OpenShift.
You want to try out something in your application without affecting anyone working on the same project. provides a branching feature so you can create your separate branch, design, model, and implement your own changes.
Your have a service that only offers async communication, but you need to call it synchronously.
You want to design transaction-like behaviour using the SAGA pattern support in your Java Domain Service based project.
Goal: Enable and configure distributed tracing for REST calls, MongoDB operations, and Kafka events in Java stack 2.0 applications using OpenTelemetry with Jaeger.
In this course, you'll discover the different Toolsets of the and see their functionalities.