The simplification will allow us to avoid a few `MonadError QErr m` constsraints in the future - this effect can be created locally instead of reusing a global one.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/8729
GitOrigin-RevId: 851e28b1f5bfe4c47da43fa324714a941ef25c57
## Description
This change adds support for nested object fields in HGE IR and Schema Cache, the Data Connectors backend and API, and the MongoDB agent.
### Data Connector API changes
- The `/schema` endpoint response now includes an optional set of GraphQL type definitions. Table column types can refer to these definitions by name.
- Queries can now include a new field type `object` which contains a column name and a nested query. This allows querying into a nested object within a field.
### MongoDB agent changes
- Add support for querying into nested documents using the new `object` field type.
### HGE changes
- The `Backend` type class has a new type family `XNestedObjects b` which controls whether or not a backend supports querying into nested objects. This is currently enabled only for the `DataConnector` backend.
- For backends that support nested objects, the `FieldInfo` type gets a new constructor `FINestedObject`, and the `AnnFieldG` type gets a new constructor `AFNestedObject`.
- If the DC `/schema` endpoint returns any custom GraphQL type definitions they are stored in the `TableInfo` for each table in the source.
- During schema cache building, the function `addNonColumnFields` will check whether any column types match custom GraphQL object types stored in the `TableInfo`. If so, they are converted into `FINestedObject` instead of `FIColumn` in the `FieldInfoMap`.
- When building the `FieldParser`s from `FieldInfo` (function `fieldSelection`) any `FINestedObject` fields are converted into nested object parsers returning `AFNestedObject`.
- The `DataConnector` query planner converts `AFNestedObject` fields into `object` field types in the query sent to the agent.
## Limitations
### HGE not yet implemented:
- Support for nested arrays
- Support for nested objects/arrays in mutations
- Support for nested objects/arrays in order-by
- Support for filters (`where`) in nested objects/arrays
- Support for adding custom GraphQL types via track table metadata API
- Support for interface and union types
- Tests for nested objects
### Mongo agent not yet implemented:
- Generate nested object types from validation schema
- Support for aggregates
- Support for order-by
- Configure agent port
- Build agent in CI
- Agent tests for nested objects and MongoDB agent
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/7844
GitOrigin-RevId: aec9ec1e4216293286a68f9b1af6f3f5317db423
### Description
(This PR is better reviewed commit by commit.)
This PR is an aggregation of small incremental changes to Pro's init:
- it deletes some dead code,
- it starts reorganizing the code of that file by sections, similar to OSS' init,
- it extracts and cleans up license key cache init (groups several blocks of code in one separate function)
- makes some changes to a service class to reduce the dependency on `_acAppStateRef`
This PR is a first step: our goal is to move the schema cache build _in_ the app monad, in order to achieve #8344. To do so, we will need to remove `_acAppStateRef` from Pro's `AppContext`. There are two different paths we can take from here, which is why i cut this PR here:
- the first would be to change the different instances we implement on `AppM` to take as an argument the parts of the schema cache they depend on, rather than reading them from `_acAppStateRef`; as of this PR, `MetricsConfig` is the only such field;
- the second would be to apply the same strategy we already used for the TLSAllowList, and use a `IORef` that can be updated after the schema cache is built; this change would have a smaller footprint, but introduces one new `IORef` per such field, which feels something we don't want to generalize
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/8655
GitOrigin-RevId: 809697d460bdb5c83ef7d30a2e835f589bcd80a6
### Description
If i understand correctly, the _value_ of a feature flag **can** change at runtime. Since this has an impact on how the schema cache is built, this PR makes the value of the flag a part of the cache's "dynamic" config, therefore making it an arrow-ish argument for the incremental framework. It also removes `CheckFeatureFlag` from the static config, now obsolete.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/8631
GitOrigin-RevId: 2ca898e4193e8552c40d2b21a819d3dd414601fe
### Description
This PR removes `ServerConfigCtx` and `HasServerConfigCtx`. Instead, it favours different approaches:
- when the code was only using one field, it passes that field explicitly (usually `SQLGenCtx` or `CheckFeatureFlag`)
- when the code was using several fields, but in only one function, it inlines
- for the cache build, it introduces `CacheStaticConfig` and `CacheDynamicConfig`, which are subsets of `AppEnv` and `AppContext` respectively
The main goal of this is to help with the modularization of the engine: as `ServerConfigCtx` had fields whose types were imported from several unrelated parts of the engine, using it tied together parts of the engine that should not be aware of one another (such as tying together `Hasura.LogicalModel` and `Hasura.GraphQL.Schema`).
The bulk of this PR is a change to the cache build, as a follow up to #8509: instead of giving the entire `ServerConfigCtx` as a incremental rule argument, we only give the new `CacheDynamicConfig` struct, which has fewer fields. The other required fields, that were coming from the `AppEnv`, are now given via the `HasCacheStaticConfig` constraint, which is a "subset" of `HasAppEnv`.
(Some further work could include moving `StringifyNumbers` out of `GraphQL.Schema.Options`, given how it is used all across the codebase, including in `RQL.DML`.)
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/8513
GitOrigin-RevId: 818cbcd71494e3cd946b06adbb02ca328a8a298e
- Remove `MonadMetadataStorageQueryAPI` which was only implemented by a default implementation
- Introduce `TransT` which can be used to easily derive `lift`ing implementations for `MonadBlaBlaBla` classes
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/8579
GitOrigin-RevId: 4f804fda7e2de5c9d75ee4df269f500ebd46b8c9
Also add a `default` implementation for `MonadQueryTags`.
This avoids a bunch of imports on `Hasura.GraphQL.Execute.Backend` which is a big module with lots of (transitive) dependencies.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/8571
GitOrigin-RevId: 8ecca452721b77953e6d088c79d8d6f003f2996f
