graphql-engine/server/src-lib
Antoine Leblanc 04d8f068b6 Remove explicit case on the backend tag in Cache
### Description

As part of the cache building process, we create / update / migrate the catalog that each DB uses as a place to store event trigger information. The function that decides how this should be done was doing an explicit `case ... of` on the backend tag, instead of delegating to one of the backend classes. The downsides of this is that:
- it adds a "friction point" where the backend matters in the core of the engine, which is otherwise written to be almost entirely backend-agnostic
- it creates imports from deep in the engine to the `Backends`, which we try to restrict to a very small set of clearly identified files (the `Instances` files)
- it is currently implemented using a "catch all" default case, which might not always be correct for new backends

This PR makes the catalog updating process a part of `BackendMetadata`, and cleans the corresponding schema cache code.

PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4457
GitOrigin-RevId: 592f0eaa97a7c38f4e6d4400e1d2353aab12c97e
2022-05-05 13:44:56 +00:00
..
Control server: simplify interpretation of concrete monads into abstract arrows 2022-04-04 12:36:35 +00:00
Data Added BackendConfig to allow sources to share configuration of Data Connectors [GDW-78] 2022-04-29 02:14:10 +00:00
Database/MSSQL (Fix #8267) Handle subscriptions in MSSQL when results exceed 2048 characters 2022-03-21 12:16:14 +00:00
GHC Yeet some default-extensions 2022-03-16 00:40:17 +00:00
Hasura Remove explicit case on the backend tag in Cache 2022-05-05 13:44:56 +00:00
Network Yeet some default-extensions 2022-03-16 00:40:17 +00:00