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Commit Graph

88 Commits

Author SHA1 Message Date
7f0fb18716 Remove StarWars tests
Our own test suite is slowly getting sufficient.
2020-11-05 07:55:22 +01:00
7c0b0ace4d Collect types once the schema is created 2020-10-07 05:24:51 +02:00
4602eb1df3 Validate arguments are defined 2020-09-28 07:06:15 +02:00
3373c94895 Validate field selections on composite types 2020-09-26 07:57:25 +02:00
08998dbd93 Validate fragments don't form cycles 2020-09-11 08:03:49 +02:00
14ed209828 Collect types from the subscription root 2020-09-04 19:12:19 +02:00
54dbf1df16 Remove encoder test based on old external files 2020-08-22 06:39:52 +02:00
b9d5b1fb1b Return a stream as well from graphql* functions 2020-07-19 07:36:06 +02:00
09135c581a Constrain base monad to MonadCatch
Let's try MonadThrow/MonadCatch. It looks nice at a first glance. The
monad transformer stack contains only the ReaderT, less lifts are
required. Exception subtyping is easier, the user can (and should)
define custom error types and throw them. And it is still possible to
use pure error handling, if someone doesn't like runtime exceptions or
need to run a query in a pure environment.

Fixes .
2020-07-17 07:05:03 +02:00
e24386402b Respect subscriptions in the executor
After the last commit there were a few places needed to be adjusted to
support subscriptions. This is done and a test case is added.

It is important to implement subscriptions now, because they require
changes to the library API, and they are a big missing part to finish
the executor. When the executor is finished, we can start to provide
more stable API without breaking everything every release. Validation
and introspection shouldn't require much changes to the API; AST would
require some changes to report good errors after the validation - this
is one thing I can think of.

Fixes .
2020-07-15 19:15:31 +02:00
ae2210f659 Support subscriptions
This is experimental support.
The implementation is based on conduit and is boring. There is a new
resolver data constructor that should create a source event stream. The
executor receives the events, pipes them through the normal execution
and puts them into the response stream which is returned to the user.

- Tests are missing.
- The executor should check field value resolver on subscription types.
- The graphql function should probably return (Either
  ResponseEventStream Response), but I'm not sure about this. It will
  make the usage more complicated if no subscriptions are involved, but
  with the current API implementing subscriptions is more
  difficult than it should be.
2020-07-14 19:37:56 +02:00
a6f9cec413 Handle errors using custom types
Fixes .
2020-07-05 14:36:00 +02:00
2f4310268a Merge Trans and Type.Out modules 2020-07-02 07:33:03 +02:00
705e506c13 Combine Resolver and ActionT in ResolverT 2020-06-29 13:14:23 +02:00
91bd2d0d81 Fix list input coercion 2020-06-19 10:53:41 +02:00
882276a845 Coerce result
Fixes .
2020-06-13 07:20:19 +02:00
377c87045e Add description to the enum type values 2020-06-07 06:16:45 +02:00
4c9264c12c Coerce argument values properly
Fixes .
2020-06-06 21:22:11 +02:00
93a0403288 Resolve abstract types
Objects that can be a part of an union or interface should return
__typename as string.
2020-06-03 07:20:38 +02:00
d12577ae71 Define resolvers on type fields
Returning resolvers from other resolvers isn't supported anymore. Since
we have a type system now, we define the resolvers in the object type
fields and pass an object with the previous result to them.
2020-05-29 13:53:51 +02:00
c06d0b8e95 Add Union and Interface type definitions 2020-05-26 11:13:55 +02:00
61dbe6c728 Split input/output types and values into 2 modules 2020-05-25 07:41:21 +02:00
eb90a4091c Check point 2020-05-24 13:51:00 +02:00
7cd4821718 Don't fail on invalid fragments and variables 2020-05-23 21:49:57 +02:00
c3ecfece03 Coerce variable values 2020-05-21 10:20:59 +02:00
a5c44f30fa Add basic output object type support 2020-05-14 22:16:56 +02:00
4c19c88e98 Accept resolvers given by the user as is 2020-05-13 16:21:48 +02:00
500cff20eb Separate Query and Mutation resolvers
Fixes  .
2020-05-10 18:32:58 +02:00
613e929d91 Update to Stack 15.x 2020-02-20 05:16:14 +01:00
67bebf853c Replace MonadIO constraint with just Monad
And make the tests use Identity instead of IO.
2020-02-01 20:46:35 +01:00
d82d5a36b3 Retrieve resolver arguments from the reader 2019-12-31 08:29:03 +01:00
44dc80bb37 Replace substitution function with a map
It makes using variables with queries more approachable, but some work
still has to be done.
- The type `Subs` should be renamed and moved out of `Schema`, together with
`AST.Core.Value` probably.
- Some kind of conversion should be possible from a user-defined input
type T to the Value. So the final HashMap should have a type like
`HashMap name a`, where a is an instance of a potential typeclass
InputType.
2019-12-30 18:26:24 +01:00
3c1a5c800f Support directives (skip and include)
Fixes .
2019-12-06 22:52:24 +01:00
fc9ad9c4a1 Consider __typename when evaluating fragments
Fixes .
2019-12-02 07:43:19 +01:00
115aa02672 Fail on cyclic fragments, fix 2019-11-14 20:40:09 +01:00
31c516927d Support nested fragments in any order
Fix .
2019-11-12 10:47:10 +01:00
1dd6b7b013 Support nested fragments
... without forward lookup.
2019-11-09 23:24:31 +01:00
73fc334bf8 Move related modules to Language.GraphQL.AST
Fixes .

- `Language.GraphQL.Encoder` moved to `Language.GraphQL.AST.Encoder`.
- `Language.GraphQL.Parser` moved to `Language.GraphQL.AST.Parser`.
- `Language.GraphQL.Lexer` moved to `Language.GraphQL.AST.Lexer`.
- All `Language.GraphQL.AST.Value` data constructor prefixes were removed. The
  module should be imported qualified.
- All `Language.GraphQL.AST.Core.Value` data constructor prefixes were removed.
  The module should be imported qualified.
- `Language.GraphQL.AST.Transform` is now isn't exposed publically anymore.
2019-11-03 11:00:18 +01:00
c7d5b02911 Handle top-level fragments
Fixes .
2019-10-19 10:00:25 +02:00
37254c8c95 Inline fragments without type
Fixes .
2019-10-11 23:28:55 +02:00
856efc5d25 Support inline fragments on types 2019-10-08 09:03:07 +02:00
eb98c36258 Introduce hspec-megaparsec
Fixes .
2019-09-27 10:50:38 +02:00
c075a41582 Add pending inline fragment tests 2019-09-13 20:33:39 +02:00
63d4de485d Deprecate enum, enumA, wrappedEnum, wrappedEnumA
These functions are from Language.GraphQL.Schema.
There are actually only two generic types in GraphQL: Scalars and objects.
Enum is a scalar value. According to the specification enums may be
serailized to strings. And in the current implementation they used
untyped strings anyway, so there is no point to have differently named
functions with the same implementation as their scalar counterparts.
2019-09-01 03:16:27 +02:00
22313d05df Deprecate Language.GraphQL.Execute.Schema
It is not a schema (at least not a complete one), but a resolver list,
and the resolvers should be provided by the user separately, because the
schema can originate from a GraphQL document. Schema name should be free
to provide a data type for the real schema later.
2019-08-30 07:26:04 +02:00
a3354e7f58 Make all encoder functions return lazy text 2019-08-05 09:00:11 +02:00
7a8a90aba8 Implement indentation in the encoder 2019-08-03 23:57:27 +02:00
989e418cc2 Put spaces between tokens in the pretty printer 2019-08-02 13:52:51 +02:00
4812c8f039 Introduce formatter type for the encoder
... to distinguish between minified and pretty printing.
2019-07-31 05:40:17 +02:00
d690d22ce8 Test the encoder with the unminified document 2019-07-27 07:31:09 +02:00