[BE] My VA Form Status: Request to be a substitute claimant (21P-0847)

[tpharrison]

Background

Form 21P-0847 is used to continue a VA claim if a connected individual passes away before the VA finishes processing their claim.

When a user is working on or has submitted form 21P-0847, the My VA dashboard should show the statuses of these forms, allowing them to track their progress through the process.

Tasks

Discovery

• Determine how to find any "in progress" 21P-0847 forms for a user. An "in progress" form refers to a form that a user has started filling out but has not yet completed or submitted.
• Determine how to find any "in flight" 21P-0847 forms for a user. An "in flight" form has been submitted to the Lighthouse API for processing. Each form submission generates a GUID (globally unique identifier) which can be used for subsequent status requests.

Build

• Build a vets-api endpoint that will return the statuses of a user's 21P-0847 forms.
• Add feature flag to endpoint.

Documentation

• Document the solution.

Acceptance Criteria

• Test in staging.
• Review solution and documentation with the team.