Just forcing some of the most numerous thunks (with -hi profiling), it
seems some of these were retaining significant amount of data
this can follow merge of, or supersede #6679
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6710
GitOrigin-RevId: d0566ee288841e264637231a7f238946aa2e3564
## Description ✍️
This PR aims to improve the developer experience when using a heroku postgres instance as source database. Better error messages and relevant documentation are added as a part of this PR.
## Changelog ✍️
__Component__ : server
__Type__: enhancement
__Product__: community-edition
### Short Changelog
Improve DX for heroku integration
### Related Issues ✍
https://hasurahq.atlassian.net/browse/GS-202
### Steps to test and verify ✍
- Add a new heroku postgres instance as DB source in Hasura
- Try adding an event trigger
- Improved error message will be emitted:
```json
{
"arguments": [],
"error": {
"description": null,
"exec_status": "FatalError",
"hint": null,
"message": "pgcrypto can only be created in heroku_ext schema. Hint: You can set \"extensions_schema\" to provide the schema to install the extensions. Refer to the documentation here: https://hasura.io/docs/latest/deployment/postgres-requirements/#pgcrypto-in-pg-search-path",
"status_code": "P0001"
},
"prepared": false,
"statement": "CREATE EXTENSION IF NOT EXISTS pgcrypto SCHEMA public"
}
```
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6630
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Sean Park-Ross <94021366+seanparkross@users.noreply.github.com>
GitOrigin-RevId: a46d7c129a4e0378b7f33445f9bda11e0bddbd74
This upgrades the version of Ormolu required by the HGE repository to v0.5.0.1, and reformats all code accordingly.
Ormolu v0.5 reformats code that uses infix operators. This is mostly useful, adding newlines and indentation to make it clear which operators are applied first, but in some cases, it's unpleasant. To make this easier on the eyes, I had to do the following:
* Add a few fixity declarations (search for `infix`)
* Add parentheses to make precedence clear, allowing Ormolu to keep everything on one line
* Rename `relevantEq` to `(==~)` in #6651 and set it to `infix 4`
* Add a few _.ormolu_ files (thanks to @hallettj for helping me get started), mostly for Autodocodec operators that don't have explicit fixity declarations
In general, I think these changes are quite reasonable. They mostly affect indentation.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6675
GitOrigin-RevId: cd47d87f1d089fb0bc9dcbbe7798dbceedcd7d83
Ormolu v0.5 tries to reformat code using operators according to fixity. Unfortunately, it doesn't really understand backticked functions (even when they have an associated `infix` declaration), and so messes up the formatting.
This is probably a bug in Ormolu, but we can work around it by using a symbol operator.
Happy to bikeshed on `==~` (which I am reading as "pretty much equal to"). Please yell at me if you prefer something else.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6651
GitOrigin-RevId: 79af427422194460200b2b48339cdb9ee9b33c33
>
## Description
->
This PR allows DC agents to define custom aggregate functions for their scalar types.
### Related Issues
->
GDC-189
### Solution and Design
>
We added a new property `aggregate_functions` to the scalar types capabilities. This allows the agent author to specify a set of aggregate functions supported by each scalar type, along with the function's result type.
During GraphQL schema generation, the custom aggregate functions are available via a new method `getCustomAggregateOperators` on the `Backend` type class.
Custom functions are merged with the builtin aggregate functions when building GraphQL schemas for table aggregate fields and for `order_by` operators on array relations.
### Steps to test and verify
>
• Codec tests for aggregate function capabilities have been added to the unit tests.
• Some custom aggregate operators have been added to the reference agent and are used in a new test in `api-tests`.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6199
GitOrigin-RevId: e9c0d1617af93847c1493671fdbb794f573bde0c
The main aim of the PR is:
1. To set up a module structure for 'remote-schemas' package.
2. Move parts by the remote schema codebase into the new module structure to validate it.
## Notes to the reviewer
Why a PR with large-ish diff?
1. We've been making progress on the MM project but we don't yet know long it is going to take us to get to the first milestone. To understand this better, we need to figure out the unknowns as soon as possible. Hence I've taken a stab at the first two items in the [end-state](https://gist.github.com/0x777/ca2bdc4284d21c3eec153b51dea255c9) document to figure out the unknowns. Unsurprisingly, there are a bunch of issues that we haven't discussed earlier. These are documented in the 'open questions' section.
1. The diff is large but that is only code moved around and I've added a section that documents how things are moved. In addition, there are fair number of PR comments to help with the review process.
## Changes in the PR
### Module structure
Sets up the module structure as follows:
```
Hasura/
RemoteSchema/
Metadata/
Types.hs
SchemaCache/
Types.hs
Permission.hs
RemoteRelationship.hs
Build.hs
MetadataAPI/
Types.hs
Execute.hs
```
### 1. Types representing metadata are moved
Types that capture metadata information (currently scattered across several RQL modules) are moved into `Hasura.RemoteSchema.Metadata.Types`.
- This new module only depends on very 'core' modules such as
`Hasura.Session` for the notion of roles and `Hasura.Incremental` for `Cacheable` typeclass.
- The requirement on database modules is avoided by generalizing the remote schemas metadata to accept an arbitrary 'r' for a remote relationship
definition.
### 2. SchemaCache related types and build logic have been moved
Types that represent remote schemas information in SchemaCache are moved into `Hasura.RemoteSchema.SchemaCache.Types`.
Similar to `H.RS.Metadata.Types`, this module depends on 'core' modules except for `Hasura.GraphQL.Parser.Variable`. It has something to do with remote relationships but I haven't spent time looking into it. The validation of 'remote relationships to remote schema' is also something that needs to be looked at.
Rips out the logic that builds remote schema's SchemaCache information from the monolithic `buildSchemaCacheRule` and moves it into `Hasura.RemoteSchema.SchemaCache.Build`. Further, the `.SchemaCache.Permission` and `.SchemaCache.RemoteRelationship` have been created from existing modules that capture schema cache building logic for those two components.
This was a fair amount of work. On main, currently remote schema's SchemaCache information is built in two phases - in the first phase, 'permissions' and 'remote relationships' are ignored and in the second phase they are filled in.
While remote relationships can only be resolved after partially resolving sources and other remote schemas, the same isn't true for permissions. Further, most of the work that is done to resolve remote relationships can be moved to the first phase so that the second phase can be a very simple traversal.
This is the approach that was taken - resolve permissions and as much as remote relationships information in the first phase.
### 3. Metadata APIs related types and build logic have been moved
The types that represent remote schema related metadata APIs and the execution logic have been moved to `Hasura.RemoteSchema.MetadataAPI.Types` and `.Execute` modules respectively.
## Open questions:
1. `Hasura.RemoteSchema.Metadata.Types` is so called because I was hoping that all of the metadata related APIs of remote schema can be brought in at `Hasura.RemoteSchema.Metadata.API`. However, as metadata APIs depended on functions from `SchemaCache` module (see [1](ceba6d6226/server/src-lib/Hasura/RQL/DDL/RemoteSchema.hs (L55)) and [2](ceba6d6226/server/src-lib/Hasura/RQL/DDL/RemoteSchema.hs (L91)), it made more sense to create a separate top-level module for `MetadataAPI`s.
Maybe we can just have `Hasura.RemoteSchema.Metadata` and get rid of the extra nesting or have `Hasura.RemoteSchema.Metadata.{Core,Permission,RemoteRelationship}` if we want to break them down further.
1. `buildRemoteSchemas` in `H.RS.SchemaCache.Build` has the following type:
```haskell
buildRemoteSchemas ::
( ArrowChoice arr,
Inc.ArrowDistribute arr,
ArrowWriter (Seq CollectedInfo) arr,
Inc.ArrowCache m arr,
MonadIO m,
HasHttpManagerM m,
Inc.Cacheable remoteRelationshipDefinition,
ToJSON remoteRelationshipDefinition,
MonadError QErr m
) =>
Env.Environment ->
( (Inc.Dependency (HashMap RemoteSchemaName Inc.InvalidationKey), OrderedRoles),
[RemoteSchemaMetadataG remoteRelationshipDefinition]
)
`arr` HashMap RemoteSchemaName (PartiallyResolvedRemoteSchemaCtxG remoteRelationshipDefinition, MetadataObject)
```
Note the dependence on `CollectedInfo` which is defined as
```haskell
data CollectedInfo
= CIInconsistency InconsistentMetadata
| CIDependency
MetadataObject
-- ^ for error reporting on missing dependencies
SchemaObjId
SchemaDependency
deriving (Eq)
```
this pretty much means that remote schemas is dependent on types from databases, actions, ....
How do we fix this? Maybe introduce a typeclass such as `ArrowCollectRemoteSchemaDependencies` which is defined in `Hasura.RemoteSchema` and then implemented in graphql-engine?
1. The dependency on `buildSchemaCacheFor` in `.MetadataAPI.Execute` which has the following signature:
```haskell
buildSchemaCacheFor ::
(QErrM m, CacheRWM m, MetadataM m) =>
MetadataObjId ->
MetadataModifier ->
```
This can be easily resolved if we restrict what the metadata APIs are allowed to do. Currently, they operate in an unfettered access to modify SchemaCache (the `CacheRWM` constraint):
```haskell
runAddRemoteSchema ::
( QErrM m,
CacheRWM m,
MonadIO m,
HasHttpManagerM m,
MetadataM m,
Tracing.MonadTrace m
) =>
Env.Environment ->
AddRemoteSchemaQuery ->
m EncJSON
```
This should instead be changed to restrict remote schema APIs to only modify remote schema metadata (but has access to the remote schemas part of the schema cache), this dependency is completely removed.
```haskell
runAddRemoteSchema ::
( QErrM m,
MonadIO m,
HasHttpManagerM m,
MonadReader RemoteSchemasSchemaCache m,
MonadState RemoteSchemaMetadata m,
Tracing.MonadTrace m
) =>
Env.Environment ->
AddRemoteSchemaQuery ->
m RemoteSchemeMetadataObjId
```
The idea is that the core graphql-engine would call these functions and then call
`buildSchemaCacheFor`.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6291
GitOrigin-RevId: 51357148c6404afe70219afa71bd1d59bdf4ffc6
## Description
This PR fixes hasura/graphql-engine#8345: when creating the final representation of a remote relationship to a remote schema (a `RemoteJoin`), we would mistakenly label ALL join fields in the selection set as being relevant to that one relationship: if there are more than one remote relationship to process in that selection set, that would be the union of all their join fields. The problem with this error is that, when processing remote relationships, we correctly ignore all the ones for which at least one join key is null. Consequently, this error would result in us ignoring remote relationships for which an _unrelated_ join key was null, resulting in that data missing in the final JSON result.
This PR simply ensures that the aggregation of fields that are passed to `createRemoteJoin` is pruned to only contain the fields relevant to the join being created. This is a very small change, and the bulk of this PR is the regression tests.
## Changelog
__Component__ : server
__Type__: bugfix
__Product__: community-edition
### Short Changelog
fix remote relationship to remote schema sometimes being erroneously null when multiple relationships are defined on the same table / graphql object ([#8345](https://github.com/hasura/graphql-engine/issues/8345))
### Long Changelog
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6420
GitOrigin-RevId: eb54462724b007f80b674dcf234adf6d9cfaaf79
Context: https://hasurahq.atlassian.net/browse/SRE-10
Also remove an overlapping instance.
-----
The new flags if this needs to be tweaked on production by SRE are:
- --idleGCIdleInterval : "When the system has been idle for idleGCIdleInterval we may opportunistically try a major GC to run finalizers"
- --idleGCMinGCInterval : "We never run an opportunistic GC unless it has been at least idleGCMinGCInterval seconds since the last major GC"
- --idleGCMaxNoGCInterval : "If it has been longer than idleGCMaxNoGCInterval since the last major GC, force a GC to run finalizers"
Be aware: we may see memory usage grow to higher peaks than before, especially when under load
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6449
GitOrigin-RevId: 662d2f968f0d73b3b6eebb857c49aaede3312705
This upgrades CI and anyone using Nix to HLint v3.4.1.
If you're not using Nix, this doesn't actually _do_ anything on your
local machine; it's just a suggestion.
It also applies a bunch of simple HLint refactors, using
`make lint-hs-fix`.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6324
GitOrigin-RevId: de8267e4909d6dcd3f83543188517f3aaeebc5f3
I didn't track why these were left behind. Presumably GHC 9.2 has an improved redundant constraint checker, so that explains a few. Otherwise, perhaps code got refactored along the way.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6256
GitOrigin-RevId: b6275edf3e867f8e33bdec533ce9932381d36bbb
- Remove a few unnecessary helper functions
- Delete kind annotations
- Bring GHC warnings and language extensions more in line with those of the `graphql-engine` library
- Constrain unconstrained dependency on `hasql-pool`
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6251
GitOrigin-RevId: 10c2530f007f70cf1464cec36566ee2264589881
- Remove `onJust` in favor of the more general `for_`
- Remove `withJust` which was used only once
- Remove `hashNub` in favor of `Ord`-based `uniques`
- Simplify some of the implementations in `Hasura.Prelude`
- Add `hlint` hint from `maybe True` to `all`, and `maybe False` to `any`
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6173
GitOrigin-RevId: 2c6ebbe2d04f60071d2a53a2d43c6d62dbc4b84e
This PR is the result of running the following commands:
```bash
$ git grep -l '".* : "' -- '*.hs' | xargs sed -i -E 's/(".*) : "/\1: "/'
$ scripts/dev.sh test --integration --accept
```
Also manually fixed a few tests and docs
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6148
GitOrigin-RevId: cf8b87605d41d9ce86613a41ac5fd18691f5a641
If we don't do this, we might end up applying metadata with a stale schema cache.
Following the principle of least surprise, replacing the metadata should probably compute inconsistencies with regards to the actual state of the database.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/6026
GitOrigin-RevId: ff7469d7d9857c8a9f517d5d0b6f1ecf463621b3
Result of executing the following commands:
```shell
# replace "as Q" imports with "as PG" (in retrospect this didn't need a regex)
git grep -lE 'as Q($|[^a-zA-Z])' -- '*.hs' | xargs sed -i -E 's/as Q($|[^a-zA-Z])/as PG\1/'
# replace " Q." with " PG."
git grep -lE ' Q\.' -- '*.hs' | xargs sed -i 's/ Q\./ PG./g'
# replace "(Q." with "(PG."
git grep -lE '\(Q\.' -- '*.hs' | xargs sed -i 's/(Q\./(PG./g'
# ditto, but for [, |, { and !
git grep -lE '\[Q\.' -- '*.hs' | xargs sed -i 's/\[Q\./\[PG./g'
git grep -l '|Q\.' -- '*.hs' | xargs sed -i 's/|Q\./|PG./g'
git grep -l '{Q\.' -- '*.hs' | xargs sed -i 's/{Q\./{PG./g'
git grep -l '!Q\.' -- '*.hs' | xargs sed -i 's/!Q\./!PG./g'
```
(Doing the `grep -l` before the `sed`, instead of `sed` on the entire codebase, reduces the number of `mtime` updates, and so reduces how many times a file gets recompiled while checking intermediate results.)
Finally, I manually removed a broken and unused `Arbitrary` instance in `Hasura.RQL.Network`. (It used an `import Test.QuickCheck.Arbitrary as Q` statement, which was erroneously caught by the first find-replace command.)
After this PR, `Q` is no longer used as an import qualifier. That was not the goal of this PR, but perhaps it's a useful fact for future efforts.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5933
GitOrigin-RevId: 8c84c59d57789111d40f5d3322c5a885dcfbf40e
The intent is to generalize `columnParser` to the point where it is the same across all backends, and then remove the interface in favor of a single implementation.
This extracts out `enumParser` and `possiblyNullable` as the two main areas that differ across backends. We may split `possiblyNullable` further so that we can extract some of that logic out into a common function too.
With these changes, the various `columnParser` implementations become semantically equivalent. They still do different things, and so reconciling them will require further changes.
Co-Authored-By: Antoine Leblanc <antoine@hasura.io>
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5841
GitOrigin-RevId: eec1770931eed5d72da70c97d7d0f00e33fa15d2
### Description
This PR attempts to fix several issues with source customization as it relates to remote relationships. There were several issues regarding casing: at the relationship border, we didn't properly set the target source's case, we didn't have access to the list of supported features to decide whether the feature was allowed or not, and we didn't have access to the global default.
However, all of that information is available when we build the schema cache, as we do resolve the case of some elements such as function names: we can therefore resolve source information at the same time, and simplify both the root of the schema and the remote relationship border.
To do this, this PR introduces a new type, `ResolvedSourceCustomization`, to be used in the Schema Cache, as opposed to the metadata's `SourceCustomization`, following a pattern established by a lot of other types.
### Remaining work and open questions
One major point of confusion: it seems to me that we didn't set the case at all across remote relationships, which would suggest we would use the case of the LHS source across the subset of the RHS one that is accessible through the remote relationship, which would in turn "corrupt" the parser cache and might result in the wrong case being used for that source later on. Is that assesment correct, and was I right to fix it?
Another one is that we seem not to be using the local case of the RHS to name the field in an object relationship; unless I'm mistaken we only use it for array relationships? Is that intentional?
This PR is also missing tests that would show-case the difference, and a changelog entry. To my knowledge, all the tests of this feature are in the python test suite; this could be the opportunity to move them to the hspec suite, but this might be a considerable amount of work?
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5619
GitOrigin-RevId: 51a81b713a74575e82d9f96b51633f158ce3a47b
### Description
This PR changes all the schema code to operate in a specific `SchemaT` monad, rather than in an arbitrary `m` monad. `SchemaT` is intended to be used opaquely with `runSourceSchema` and `runRemoteSchema`. The main goal of this is to allow a different reader context per part of the schema: this PR also minimizes the contexts. This means that we no longer require `SchemaOptions` when building remote schemas' schema, and this PR therefore removes a lot of dummy / placeholder values accordingly.
### Performance and stacking
This PR has been through several iterations. #5339 was the original version, that accomplished the same thing by stacking readers on top of the stack at every remote relationship boundary. This raised performance concerns, and @0x777 confirmed with an ad-hoc test that in some extreme cases we could see up to a 10% performance impact. This version, while more verbose, allows us to unstack / re-stack the readers, and avoid that problem. #5517 adds a new benchmark set to be able to automatically measure this on every PR.
### Remaining work
- [x] a comment (or perhaps even a Note?) should be added to `SchemaT`
- [x] we probably want for #5517 to be merged first so that we can confirm the lack of performance penalty
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5458
GitOrigin-RevId: e06b83d90da475f745b838f1fd8f8b4d9d3f4b10
This includes TH.Lift instances.
I am motivated to make this change because `unordered-containers` is set to either v0.2.17.0 or v0.2.19.1 in nixpkgs-unstable.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5620
GitOrigin-RevId: 7fd3024fdbf6a948adbdf5f4187d47d5da9acbda
This PR expands the OpenAPI specification generated for metadata to include separate definitions for `SourceMetadata` for each native database type, and for DataConnector.
For the most part the changes add `HasCodec` implementations, and don't modify existing code otherwise.
The generated OpenAPI spec can be used to generate TypeScript definitions that distinguish different source metadata types based on the value of the `kind` properly. There is a problem: because the specified `kind` value for a data connector source is any string, when TypeScript gets a source with a `kind` value of, say, `"postgres"`, it cannot unambiguously determine whether the source is postgres, or a data connector. For example,
```ts
function consumeSourceMetadata(source: SourceMetadata) {
if (source.kind === "postgres" || source.kind === "pg") {
// At this point TypeScript infers that `source` is either an instance
// of `PostgresSourceMetadata`, or `DataconnectorSourceMetadata`. It
// can't narrow further.
source
}
if (source.kind === "something else") {
// TypeScript infers that this `source` must be an instance of
// `DataconnectorSourceMetadata` because `source.kind` does not match
// any of the other options.
source
}
}
```
The simplest way I can think of to fix this would be to add a boolean property to the `SourceMetadata` type along the lines of `isNative` or `isDataConnector`. This could be a field that only exists in serialized data, like the metadata version field. The combination of one of the native database names for `kind`, and a true value for `isNative` would be enough for TypeScript to unambiguously distinguish the source kinds.
But note that in the current state TypeScript is able to reference the short `"pg"` name correctly!
~~Tests are not passing yet due to some discrepancies in DTO serialization vs existing Metadata serialization. I'm working on that.~~
The placeholders that I used for table and function metadata are not compatible with the ordered JSON serialization in use. I think the best solution is to write compatible codecs for those types in another PR. For now I have disabled some DTO tests for this PR.
Here are the generated [OpenAPI spec](https://github.com/hasura/graphql-engine-mono/files/9397333/openapi.tar.gz) based on these changes, and the generated [TypeScript client code](https://github.com/hasura/graphql-engine-mono/files/9397339/client-typescript.tar.gz) based on that spec.
Ticket: [MM-66](https://hasurahq.atlassian.net/browse/MM-66)
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5582
GitOrigin-RevId: e1446191c6c832879db04f129daa397a3be03f62
This does not yet enable Aggregation Predicates to users, but enables building the execution backend and tests of the schema.
This is a prerequisite for:
* #5174
* #5261
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5607
GitOrigin-RevId: e07beb01949724545131629c111d41a7ec4636f2
This makes it easier to refactor `BackendSchema`, because if the type of a type class method is changed, it's easier to update the corresponding dummy implementations.
Partially addresses hasura/graphql-engine-mono#2971, in the sense that this aids refactors.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5443
GitOrigin-RevId: 65e169d01415a04e7c419a628cf32e743448543d
The module `Hasura.SQL.AnyBackend` was introduced (in #751) to centralize the logic for case-switching behavior that depends on the particular flavor of relational DB backend (Postgres vs MSSQL vs BigQuery vs MySQL vs DataConnectors). This allows us to write a bunch of code in a backend-agnostic way, even if runtime behavior does depend on the chosen backend. At the same time, it allows us to write backend-specific code without having to care (too much) about the existence of other backends.
In #851 this module was rewritten to use Template Haskell.
I've heard that one of the reasons for the use of TH was that this would make it easier to keep backends out of the compilation product entirely. This would allow customers, especially on OSS, to benefit from simpler software licensing.
However:
1. This conditional compilation never materialized.
2. It's not clear whether writing this particular module based on TH would be sufficient for conditional compilation. And in any case, it can be done using CPP pragmas as well.
3. The TH code is extraordinarily complex. Since its introduction, it has been documented extraordinarily well, but it's still very difficult to maintain and/or refactor, due to its non-idiomatic nature.
4. Hasura's company objectives are now Cloud-oriented, so that software licensing issues work differently, and in particular, do not depend on what's part of the compilation product.
So this PR reverts on #851 by spelling out the code generated by TH. This is a net-negative diff size. IOW we used to generate less code than the size of the code doing the generating. This makes the code readable and maintainable.
The generated code has been modified in one way, which I'll now describe.
In the scenario that support for a new backend is introduced, a constructor is added to the `BackendType` type. This would then cause `liftTag` to be partial, thus raising a compiler warning. Resolving this requires adding corresponding constructors to the `BackendTag` and `AnyBackend` types. This would then require amending **almost** all other methods.
The exceptions are `composeAnyBackend` and `unpackAnyBackend`. These methods test whether two values are compatible, i.e. belong to the same backend. Both have a default case that in one way or another ignores the input values. Using TH here ensures that all values that belong together are caught. But after spelling out the TH, the presence of the default case means that no compiler warning is thrown for a missing match of matching values. So in the default case, we now do an explicit check for equality. If there _is_ an equality, that means that there is a missing `case`. So this is reported as an `error` (which is very crude, but it should be).
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5333
GitOrigin-RevId: 5aaf0a93394bd740aa7371526d3175c8142b3541
### Description
This PR moves some strictness annotations to a concrete use site, rather than putting `seq` in an helper function.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5436
GitOrigin-RevId: 1f279e05333ab80167ad2e18d09b8792eddc52c3
### Description
This PR is a first step towards having a dedicated reader context per schema block. It adds the required Reader instance, and switches from a `SchemaT ReaderT` stack to a `ReaderT SchemaT` stack. Furthermore, it cleans up / harmonizes some of the top-level schema building functions.
Sources and remotes are now built each within their own run of `runReaderT`: for now, the reader context is the same in both cases, meaning no special care is required at the boundary of remote relationships.
Actions are explicitly run with the source context for now; we could envision creating a third and distinct context for them.
This PR is expected to be a no-op.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5300
GitOrigin-RevId: a014e5b3504eb4ef740c820d305d6d2695f622f7
It's about time.
To do this I had to check a few more boxes.
* I copied the flags from `graphql-engine.cabal` to the libraries in `server/lib`.
* I moved `Cacheable` instances of schema parser types beside the typeclass declaration.
* I removed imports of `Hasura.Prelude` from the tests, and rewrote them accordingly.
* I copied the `TestMonad` parse monad into `server/src-test/Hasura/GraphQL/Schema/RemoteTest.hs`, which was using it. I think this could be done with the real thing, but I tried replacing it with constraints and it messed with my head somewhat.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5311
GitOrigin-RevId: ebebcc50a16f2d517b7f730fe72410827ca3e86c
## Description ✍️
This PR fixes the config status update when the `Service configured successfully` message is written before the server is actually spawned. Now the status is updated only when the server is spawned successfully. To be specific, this change posts the status closer to where we log `starting API server`.
### Related Issues ✍
#2751
### Solution and Design ✍
We update the status inside `runHGEServer` function. This helps in adding the message only when the server is started. If any exception is thrown before the server is spawned, only that message is written to `config_status` table instead of the `Service configured successfully` message.
## Affected components ✍️
- ✅ Server
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5179
Co-authored-by: Naveen Naidu <30195193+Naveenaidu@users.noreply.github.com>
Co-authored-by: Anon Ray <616387+ecthiender@users.noreply.github.com>
GitOrigin-RevId: 7860008403aa0645583e26915f620b66a5bbc531
Followup to hasura/graphql-engine-mono#4713.
The `memoizeOn` method, part of `MonadSchema`, originally had the following type:
```haskell
memoizeOn
:: (HasCallStack, Ord a, Typeable a, Typeable b, Typeable k)
=> TH.Name
-> a
-> m (Parser k n b)
-> m (Parser k n b)
```
The reason for operating on `Parser`s specifically was that the `MonadSchema` effect would additionally initialize certain `Unique` values, which appear (nested in) the type of `Parser`.
hasura/graphql-engine-mono#518 changed the type of `memoizeOn`, to additionally allow memoizing `FieldParser`s. These also contained a `Unique` value, which was similarly initialized by the `MonadSchema` effect. The new type of `memoizeOn` was as follows:
```haskell
memoizeOn
:: forall p d a b
. (HasCallStack, HasDefinition (p n b) d, Ord a, Typeable p, Typeable a, Typeable b)
=> TH.Name
-> a
-> m (p n b)
-> m (p n b)
```
Note the type `p n b` of the value being memoized: by choosing `p` to be either `Parser k` or `FieldParser`, both can be memoized. Also note the new `HasDefinition (p n b) d` constraint, which provided a `Lens` for accessing the `Unique` value to be initialized.
A quick simplification is that the `HasCallStack` constraint has never been used by any code. This was realized in hasura/graphql-engine-mono#4713, by removing that constraint.
hasura/graphql-engine-mono#2980 removed the `Unique` value from our GraphQL-related types entirely, as their original purpose was never truly realized. One part of removing `Unique` consisted of dropping the `HasDefinition (p n b) d` constraint from `memoizeOn`.
What I didn't realize at the time was that this meant that the type of `memoizeOn` could be generalized and simplified much further. This PR finally implements that generalization. The new type is as follows:
```haskell
memoizeOn ::
forall a p.
(Ord a, Typeable a, Typeable p) =>
TH.Name ->
a ->
m p ->
m p
```
This change has a couple of consequences.
1. While constructing the schema, we often output `Maybe (Parser ...)`, to model that the existence of certain pieces of GraphQL schema sometimes depends on the permissions that a certain role has. The previous versions of `memoizeOn` were not able to handle this, as the only thing they could memoize was fully-defined (if not yet fully-evaluated) `(Field)Parser`s. This much more general API _would_ allow memoizing `Maybe (Parser ...)`s. However, we probably have to be continue being cautious with this: if we blindly memoize all `Maybe (Parser ...)`s, the resulting code may never be able to decide whether the value is `Just` or `Nothing` - i.e. it never commits to the existence-or-not of a GraphQL schema fragment. This would manifest as a non-well-founded knot tying, and this would get reported as an error by the implementation of `memoizeOn`.
tl;dr: This generalization _technically_ allows for memoizing `Maybe` values, but we probably still want to avoid doing so.
For this reason, the PR adds a specialized version of `memoizeOn` to `Hasura.GraphQL.Schema.Parser`.
2. There is no longer any need to connect the `MonadSchema` knot-tying effect with the `MonadParse` effect. In fact, after this PR, the `memoizeOn` method is completely GraphQL-agnostic, and so we implement hasura/graphql-engine-mono#4726, separating `memoizeOn` from `MonadParse` entirely - `memoizeOn` can be defined and implemented as a general Haskell typeclass method.
Since `MonadSchema` has been made into a single-type-parameter type class, it has been renamed to something more general, namely `MonadMemoize`. Its only task is to memoize arbitrary `Typeable p` objects under a combined key consisting of a `TH.Name` and a `Typeable a`.
Also for this reason, the new `MonadMemoize` has been moved to the more general `Control.Monad.Memoize`.
3. After this change, it's somewhat clearer what `memoizeOn` does: it memoizes an arbitrary value of a `Typeable` type. The only thing that needs to be understood in its implementation is how the manual blackholing works. There is no more semantic interaction with _any_ GraphQL code.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4725
Co-authored-by: Daniel Harvey <4729125+danieljharvey@users.noreply.github.com>
GitOrigin-RevId: 089fa2e82c2ce29da76850e994eabb1e261f9c92
### Description
By definition, root fields are at the root of the schema: only functions that craft root fields need to know about how to customize the name of root fields. However, the presence of `Has MkRootFieldName` in `MonadBuildSchemaBase` meant that the entirety of the schema building code was implicitly aware of / capable of altering root field names.
This PR removes this constraint, and moves it to the functions that do craft root fields. This has several upsides:
- it makes it more explicit where root fields are being crafted
- it prevents functions that should not use this from mistakenly applying it to non-root fields
- it simplifies the shared schema context
### Future work
- can we maybe pass this as an argument, instead of making it a required part of the context?
- ~~AFAICT, we only ever use `mempty` for it: is this actually dead code that we should actually just remove altogether?~~
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5235
GitOrigin-RevId: 4268751f3ab87ae8e03b6fe9e1efa1b096200027
For some reason these functions exist in `Backends.Postgres.SQL.Value`.
We don't want to depend on that module here.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5292
GitOrigin-RevId: a09bd3cdb0caf08938bce0728a8d281344c1d4ce
Moves code from `Hasura.RQL.Types.Metadata` that is specific to serialization into a new module, `Hasura.RQL.Types.Metadata.Serialization`.
I'm breaking up #5184 into smaller PRs. This is the third and final PR in that effort. This PR is stacked on #5210 and #5211.
The tracking issue is https://hasurahq.atlassian.net/browse/MM-35
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5212
GitOrigin-RevId: 6cde6d52173590fafe0969a06f2a3411db4fbc78
Introduces a new function, `metadataToDTO`, that converts a `Metadata` value to a `MetadataV3` DTO value. This is the next step in the alternative serialization path for metadata that comes with a generated OpenAPI specification.
This PR carves up the existing `metadataToOrdJSON` function so that helpers previously embedded in the `where` block of that function can also be used in the implementation of `metadataToDTO`. If I did everything correctly `metadataToOrdJSON` should behave exactly as before.
In a followup PR I will move the extracted helpers to a new submodule, `Hasura.RQL.Types.Metadata.Serialization`, since they add up to several hundred lines of code.
I'm breaking up #5184 into smaller PRs, and this is the second PR in that effort. This PR is stacked on #5210.
The tracking issue is https://hasurahq.atlassian.net/browse/MM-35
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5211
GitOrigin-RevId: 2596ed5312d7b1232c47ae1d08a51d8ead11fcb8
A following PR moves serialization-related code out `Hasura.RQL.Types.Metadata` into a specialized submodule. To avoid circular dependencies a number of other definitions also need to be moved into their own submodule. This PR does that extra moving first so that we can keep each PR as small, and as easy to review as possible.
There are a lot of changed lines; but it's all moving code from one module to another.
I'm breaking up #5184 into smaller PRs, and this is the first PR in that effort.
The tracking issue is https://hasurahq.atlassian.net/browse/MM-35
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5210
GitOrigin-RevId: 6fb6e29a967ab5ad4724006c8e0addd2d63a3946
### Description
I am not 100% sure about this PR; while I think the code is better this way, I'm willing to be convinced otherwise.
In short, this PR moves the `RoleName` field into the `SchemaContext`, instead of being a nebulous `Has RoleName` constraint on the reader monad. The major upside of this is that it makes it an explicit named field, rather than something that must be given as part of a tuple of arguments when calling `runReader`.
However, the downside is that it breaks the helper permissions functions of `Schema.Table`, which relied on `Has RoleName r`. This PR makes the choice of passing the role name explicitly to all of those functions, which in turn means first explicitly fetching the role name in a lot of places. It makes it more explicit when a schema building block relies on the role name, but is a bit verbose...
### Alternatives
Some alternatives worth considering:
- attempting something like `Has context r, Has RoleName context`, which would allow them to be independent from the context but still fetch the role name from the reader, but might require type annotations to not be ambiguous
- keeping the permission functions the same, with `Has RoleName r`, and introducing a bunch of newtypes instead of using tuples to explicitly implement all the required `Has` instances
- changing the permission functions to `Has SchemaContext r`, since they are functions used only to build the schema, and therefore may be allowed to be tied to the context.
What do y'all think?
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5073
GitOrigin-RevId: 8fd09fafb54905a4d115ef30842d35da0c3db5d2
In the process of decoupling the schema parsers from the GraphQL Engine, we need to remove dependencies on `Hasura.Base.Error`.
First of all, we have avoided using `QErr` in schema parsers code, instead returning a more appropriate data type which can be converted to a `Hasura.Base.Error.QErr` later.
Secondly, we create a new `ParseErrorCode` type to represent parse failure types, which are then converted to a `Hasura.Base.Error.Code` later.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5181
GitOrigin-RevId: 8655e26adb1e7d5e3d552c77a8a403f987b53467
Updates to the latest version of autodocodec and uses the new features, in particular `discriminatedUnionCodec`.
This allows us to remove the `ValueWrapper*` types and `sumTypeCodec`. Sum types are now encoded as discriminated unions.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5155
GitOrigin-RevId: 20bfdc12b28d35db354c4a149b9175fab0b2b7d2
This is now the sole in-universe dependency of the schema parsers. As
such, we need to extract it as a library before we can extract the
schema parsers as a library.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5202
GitOrigin-RevId: fbe571855768e56dc8b8e259b8efe900de3ecc54
Makes the init specs shorter by using `shouldBe` instead of `shouldSatisfy` wherever possible. This also makes test failures more expressive.
It also simplifies boolean logic in most places, following HLint warnings. These changes brought to you by `hlint --refactor`, which is basically magic.
I have left some redundancy in the boolean logic for clarity, along with the appropriate HLint suppressions.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5087
GitOrigin-RevId: 52bf3626be2615e6a32a0fc0e8be19cca31ee4ad
This introduces an `ErrorMessage` newtype which wraps `Text` in a manner which is designed to be easy to construct, and difficult to deconstruct.
It provides functionality similar to `Data.Text.Extended`, but designed _only_ for error messages. Error messages are constructed through `fromString`, concatenation, or the `toErrorValue` function, which is designed to be overridden for all meaningful domain types that might show up in an error message. Notably, there are not and should never be instances of `ToErrorValue` for `String`, `Text`, `Int`, etc. This is so that we correctly represent the value in a way that is specific to its type. For example, all `Name` values (from the _graphql-parser-hs_ library) are single-quoted now; no exceptions.
I have mostly had to add `instance ToErrorValue` for various backend types (and also add newtypes where necessary). Some of these are not strictly necessary for this changeset, as I had bigger aspirations when I started. These aspirations have been tempered by trying and failing twice.
As such, in this changeset, I have started by introducing this type to the `parseError` and `parseErrorWith` functions. In the future, I would like to extend this to the `QErr` record and the various `throwError` functions, but this is a much larger task and should probably be done in stages.
For now, `toErrorMessage` and `fromErrorMessage` are provided for conversion to and from `Text`, but the intent is to stop exporting these once all error messages are converted to the new type.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5018
GitOrigin-RevId: 84b37e238992e4312255a87ca44f41af65e2d89a
This removes the one remaining instance of `unsafeMkName` in production
code, uses `G.name` where possible in tests, and ignores instances where
it's not possible (such as `instance Arbitrary G.Name`).
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5074
GitOrigin-RevId: d8049edf1f1bc2ef25f34874ef5bd5a5934bd33d
### Description
A trivial PR, extracted out of #4936, that removes remote schema permissions from the schema context, as they are only ever used at the top level: whether or not we need to use remote schema permissions is not something that impacts _how_ we build the schema, but whether some parts of the schema should be built at all, and therefore doesn't need to be accessible throughout the build process.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5050
GitOrigin-RevId: 734673370393d5640ad753222982baf2698f6d8f
This moves `MkTypename` and `NamingCase` into their own modules, with the intent of reducing the scope of the schema parsers code, and trying to reduce imports of large modules when small ones will do.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4978
GitOrigin-RevId: 19541257fe010035390f6183a4eaa37bae0d3ca1
Earlier, if the `select` root field had a custom root field set, the same custom root field was then used for the streaming subscription root field as well. This leads to duplicate root fields being generated in the `subscription_root`.
This PR fixes that. It provides a way to customize the streaming subscription root field and not use the `select` root field's custom root field name for the streaming subscription root field.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4967
Co-authored-by: Anon Ray <616387+ecthiender@users.noreply.github.com>
GitOrigin-RevId: 54e74ce97561b0e5cfdfc60d1ca340aaebecf7d4
This reduces the usage of "utils" modules in the parsers code, especially those that are simply re-exported from elsewhere, to facilitate extracting the parsers code into its own library.
It mostly inlines the imports that are re-exported from `Hasura.Prelude` and `Data.Parser.JSONPath`. It also removes references to `Data.*.Extended` modules. When necessary, it re-implements the functionality (which is typically trivial).
It does not tackle all external dependencies. I observed the following that will take more work:
- `Data.GADT.Compare.Extended`
- `Data.Text.Extended`
- `Hasura.Base.Error`
- `Hasura.RQL.Types.Common`
- `Hasura.Server.Utils`
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4964
GitOrigin-RevId: 54ad3c1b7a31f13e34340ebe9fcc36d0ad57b8bd
This improves `parseJSONPath` and `encodeJSONPath` to encode special characters appropriately by delegating to Aeson.
This also makes a couple of improvements to `encodeJSONPath`.
1. The function is moved from `Hasura.Base.Error` to `Data.Parser.JSONPath`. This still doesn't seem too appropriate but it is somewhat better. I am basing this on the fact that its test cases already lived in `Data.Parser.JSONPathSpec`.
2. It now returns `Text`, not `String`.
4. It quotes strings with double quotes (`"`) rather than single quotes (`'`), just like JSON.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4935
GitOrigin-RevId: bf44353cd740500245f2e38907a7d6263ae0291c
This reflects the two different usages, which should not be conflated.
We also propagate the type a little more, to avoid `Text`.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4931
GitOrigin-RevId: 16278f14aa4c2cb5667ea54bbb6b25e6d362835c
We only use these `Show` instances in error messages (where we call
`show` explicitly anyway) and test cases (in which Hspec requires `Show
a` for any `a` in an assertion).
This removes the instance in favor of a custom `showQErr` function
(which serializes the error to JSON). It is then used in certain error
message production which previously called `show` on a `QErr`.
There are two places where we serialize a QErr and then construct a new
QErr from the resulting string. Instead, we modify the existing QErr to
add extra information.
An orphan `Show QErr` instance is retained for tests so that we can have
nice test failure messages.
This is preparation for future changes in which the error message within
`QErr` will not be exposed directly, and therefore will not have a
`Show` instance. That said, it feels like a sensible kind of cleanup
anyway.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4897
GitOrigin-RevId: 8f79f7a356f0aea571156f39aefac242bf751f3a
The definition of the Parse monad (which implements MonadParse) can be simplified from using two monad transformers to a single monad. We can simplify from:
```haskell
newtype Parse a = Parse
{ unParse :: ReaderT JSONPath (Except ParseError) a }
```
to
```haskell
newtype Parse a = Parse
{ unParse :: Except ParseError a }
```
In other words, we don't actually need a Reader monad at all.
The technique is that rather than _always_ keeping track of the `JSONPath` while traversing the query, instead simply wait until an error occurs, and if it does, we adjust its `JSONPath` while we're unrolling the stack, using `withExceptT`.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4807
Co-authored-by: Daniel Harvey <4729125+danieljharvey@users.noreply.github.com>
GitOrigin-RevId: 94de2c97dc65cb0bd918050cf5e99ac62168b331
### Description
This PR rewrites OpenAPI to be more idiomatic. Some noteworthy changes:
- we accumulate all required information during the Analyze phase, to avoid having to do a single lookup in the schema cache during the OpenAPI generation phase (we now only need the schema cache as input to run the analysis)
- we no longer build intermediary endpoint information and aggregate it, we directly build the the `PathItem` for each endpoint; additionally, that means we no longer have to assume that different methods have the same metadata
- we no longer have to first declare types, then craft references: we do everything in one step
- we now properly deal with nullability by treating "typeName" and "typeName!" as different
- we add a bunch of additional fields in the generated "schema", such as title
- we do now support enum values in both input and output positions
- checking whether the request body is required is now performed on the fly rather than by introspecting the generated schema
- the methods in the file are sorted by topic
### Controversial point
However, this PR creates some additional complexity, that we might not want to keep. The main complexity is _knot-tying_: to avoid lookups when generating the OpenAPI, it builds an actual graph of input types, which means that we need something similar to (but simpler than) `MonadSchema`, to avoid infinite recursions when analyzing the input types of a query. To do this, this PR introduces `CircularT`, a lesser `SchemaT` that aims at avoiding ever having to reinvent this particular wheel ever again.
### Remaining work
- [x] fix existing tests (they are all failing due to some of the schema changes)
- [ ] add tests to cover the new features:
- [x] tests for `CircularT`
- [ ] tests for enums in output schemas
- [x] extract / document `CircularT` if we wish to keep it
- [x] add more comments to `OpenAPI`
- [x] have a second look at `buildVariableSchema`
- [x] fix all missing diagnostics in `Analyze`
- [x] add a Changelog entry?
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4654
Co-authored-by: David Overton <7734777+dmoverton@users.noreply.github.com>
GitOrigin-RevId: f4a9191f22dfcc1dccefd6a52f5c586b6ad17172
…fix #5426"
This reverts commit f85742318167d1e51f463c45fcd00f26269c2555.
## Description ✍️
With this commit there is the possiblity that you could get conflicting
type definitions with remote schemas. Reverting for now as we determine
a solution. At which point we will add this back in.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4879
Co-authored-by: Gil Mizrahi <8547573+soupi@users.noreply.github.com>
GitOrigin-RevId: 932b4a9226717c826d4bde7e375695354cee8c0c
This came about as I tried to add an instance over catalog versions and
found they were just simple integers most of the time (and in one case,
a float).
I think this change also clarifies how catalog versions work.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4864
GitOrigin-RevId: a6b7db86de564b71a8c2b602bee6a456b8e20d63
The code that builds the GraphQL schema, and `buildGQLContext` in particular, is partial: not every value of `(ServerConfigCtx, GraphQLQueryType, SourceCache, HashMap RemoteSchemaName (RemoteSchemaCtx, MetadataObject), ActionCache, AnnotatedCustomTypes)` results in a valid GraphQL schema. When it fails, we want to be able to return better error messages than we currently do.
The key thing that is missing is a way to trace back GraphQL type information to their origin from the Hasura metadata. Currently, we have a number of correctness checks of our GraphQL schema. But these correctness checks only have access to pure GraphQL type information, and hence can only report errors in terms of that. Possibly the worst is the "conflicting definitions" error, which, in practice, can only be debugged by Hasura engineers. This is terrible DX for customers.
This PR allows us to print better error messages, by adding a field to the `Definition` type that traces the GraphQL type to its origin in the metadata. So the idea is simple: just add `MetadataObjId`, or `Maybe` that, or some other sum type of that, to `Definition`.
However, we want to avoid having to import a `Hasura.RQL` module from `Hasura.GraphQL.Parser`. So we instead define this additional field of `Definition` through a new type parameter, which is threaded through in `Hasura.GraphQL.Parser`. We then define type synonyms in `Hasura.GraphQL.Schema.Parser` that fill in this type parameter, so that it is not visible for the majority of the codebase.
The idea of associating metadata information to `Definition`s really comes to fruition when combined with hasura/graphql-engine-mono#4517. Their combination would allow us to use the API of fatal errors (just like the current `MonadError QErr`) to report _inconsistencies_ in the metadata. Such inconsistencies are then _automatically_ ignored. So no ad-hoc decisions need to be made on how to cut out inconsistent metadata from the GraphQL schema. This will allow us to report much better errors, as well as improve the likelihood of a successful HGE startup.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4770
Co-authored-by: Samir Talwar <47582+SamirTalwar@users.noreply.github.com>
GitOrigin-RevId: 728402b0cae83ae8e83463a826ceeb609001acae
This implements an initial set of DTO types that represent serialized metadata. These new types come with codecs using autodocodec which are used to derive both JSON serialization, and OpenAPI documentation. This ensures that we can automatically generate API documentation that is guaranteed to match JSON produced by the server.
For the moment the new types are not used for anything except to generate an early version of an OpenAPI document. Because this is early work the DTO types for each metadata format version list top-level properties only with placeholders for the types of each top-level property. This early iteration demonstrates using a sum type in Haskell that maps to a tagged union in OpenAPI (using the `version` field value as a tag).
This work is experimental and incomplete! Please do not incorporate the generated OpenAPI documentation into essential workflows at this time.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4801
GitOrigin-RevId: d2f110a6237b73520cdba24667333ef14e8cdd3d
### Description
This PR removes the need for the `SourceCache` when building the schema for the actions. To do so, it changes the way we represent custom types in the source cache. Instead of trying to reuse the same `ObjectTypeDefinition` and `TypeRelationship`. we now have separate `AnnotatedObjectType` and `AnnotatedRelationship`. When building them, at schema cache building time, we persist all the relevant source information, so that it's all available at schema building time.
This PR makes no attempt at re-using `RemoteRelationship` primitives, to avoid having to change the way async action queries are executed, and to avoid having to make complicated changes to how we parse and represent those relationships.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4813
GitOrigin-RevId: 3cc65c5a043c8d3da5f7214eed40c558c4349327
Pretty much all quasi-quoted names in the server code base have ended up in `Hasura.GraphQL.Parser.Constants`. I'm now finding this unpleasant for two reasons:
1. I would like to factor out the parser code into its own Cabal package, and I don't want to have to expose all these names.
2. Most of them really have nothing to do with the parsers.
In order to remedy this, I have:
1. moved the names used by parser code to `Hasura.GraphQL.Parser.DirectiveName`, as they're all related to directives;
2. moved `Hasura.GraphQL.Parser.Constants` to `Hasura.Name`, changing the qualified import name from `G` to `Name`;
3. moved names only used in tests to the appropriate test case;
4. removed unused items from `Hasura.Name`; and
5. grouped related names.
Most of the changes are simply changing `G` to `Name`, which I find much more meaningful.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4777
GitOrigin-RevId: a77aa0aee137b2b5e6faec94495d3a9fbfa1348b
## Description ✍️
The `--help` header was out of date. This PR updates it to match the description on github.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4831
GitOrigin-RevId: 449f71b2901318132e45445632b1a8af358c0afb
### Description
This small clean-up PR makes one further step towards backend-agnostic actions: it makes all the code parsing custom types backend agnostic. Surprisingly, this could be done *without* the need to finish generalizing the column parser. The remaining sore point is async queries, that still target Postgres explicitly.
In theory, this is enough to start allowing non-Postgres scalars in custom types. In practice, however:
- no other backend exposes scalars in a way that would allow users to do that as of this PR;
- we currently have no strategy to avoid / detect scalar collisions across backends.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4691
GitOrigin-RevId: bfe63fb131e306663d4406697ce23c02736566c5
>
## Description ✍️
->
Fleshes out the Capabilities types used by Data Connector agents.
### Related Issues ✍
->
https://hasurahq.atlassian.net/browse/GDW-85
### Solution and Design ✍
>
Capabilities are divided into sections for queries, mutation, subscriptions, filtering and relationships:
```haskell
data Capabilities = Capabilities
{ cQueries :: Maybe QueryCapabilities,
cMutations :: Maybe MutationCapabilities,
cSubscriptions :: Maybe SubscriptionCapabilities,
cFiltering :: Maybe FilteringCapabilities,
cRelationships :: Maybe RelationshipCapabilities
}
```
Each section is optional. If the section is absent it means the the related capabilities are not supported by the agent.
The types for each section can contain additional details about exactly what is supported. E.g.
```haskell
data QueryCapabilities = QueryCapabilities
{ qcSupportsPrimaryKeys :: Bool
}
```
These are currently mostly empty, but will be filled in later.
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4671
GitOrigin-RevId: 3d48570266bfce5e177a543a0ed6f63a7b450f0b
