Certification BLoC
Component Detail
Description
Flutter BLoC state management for all certification-related UI screens. Handles loading certification data, submitting renewals, and reacting to expiry status changes. Follows the BLoC pattern consistent with the rest of the app.
certification-bloc
Summaries
The Certification BLoC is the user-facing engine that drives all certification interactions within the mobile application. It ensures peer mentors see accurate, up-to-date certification status, can record renewals with minimal friction, and receive timely feedback when enrolling in renewal courses. A well-functioning BLoC directly translates to higher user satisfaction scores and lower support ticket volume, since users are never left in ambiguous or stale UI states. By following the established BLoC pattern consistent with the rest of the app, this component also reduces onboarding time for new developers and lowers the risk of regression bugs introduced during future feature work.
This is a medium-complexity Flutter component that sits at the intersection of the UI layer and the backend certification management service. It has a single dependency on certification-management-service, which must expose a stable API before BLoC integration can be fully validated. Widget testing and BLoC unit testing (using bloc_test) should be planned as part of the feature acceptance criteria. State transitions — loading, loaded, error, renewal success — must all be covered.
The mobile execution context means QA must verify behaviour on both iOS and Android, and particular attention should be paid to state invalidation after mutations to avoid stale data being displayed to users post-renewal.
The BLoC exposes a stream of CertificationState and accepts three event types: LoadCertificationEvent(mentorId), RecordRenewalEvent(issuedAt, expiresAt), and EnrolInCourseEvent(courseId). It delegates all data operations to certification-management-service. State invalidation after mutations (renewals, enrolments) should use emit(CertificationLoading()) followed by a re-fetch to ensure fresh data. Error states must distinguish between network failures and business rule violations (e.g., renewing a non-expired cert) so the UI can display appropriate messages.
The close() method must cancel any in-flight subscriptions to prevent memory leaks. Follows Flutter BLoC 8.x conventions with sealed state classes for exhaustive pattern matching in UI widgets.
Responsibilities
- Expose certification state streams to UI widgets
- Handle LoadCertification, RecordRenewal, and EnrolInCourse events
- Propagate success and error states to the UI layer
- Invalidate and reload state after mutations
Interfaces
add(LoadCertificationEvent(mentorId))
add(RecordRenewalEvent(issuedAt, expiresAt))
add(EnrolInCourseEvent(courseId))
stream CertificationState
close()
Relationships
Dependents (3)
Components that depend on this component
Related Data Entities (1)
Data entities managed by this component