Migration guide: mount LB3 in LB4 #2393
Description
This is a follow-up for the spike #2318, see the discussion and PoC code for more context.
Create a migration guide for LB3 users showing them how to mount their existing LB3 project into a new LB4 app.
Related issues: #1849 #2389 #2391 #2392
Acceptance criteria
-
Start by reorganizing the docs for LoopBack 3.x users: -> docs: add mounting lb3 app on lb4 migration guide #3052
- Keep the current page as a top-level overview.
- Move most of the content into a new page with a name like "Understanding the differences".
-
Create a new page with a name like "Migrating from v3". Describe how to use
Lb3AppBooterComponent. Explain the differences (breaking changes) introduced by the migration. ATM, we are aware of a single difference: the spec format. LB3 produces Swagger (OpenApi v2), LB4 produces OpenApi v3. -> docs: add mounting lb3 app on lb4 migration guide #3052 -
A blog post to announce this new migration option -> https://github.com/strongloop/strongloop.com/pull/203