Commit Graph

188 Commits

Author SHA1 Message Date
3e393004ae Validate all variables are defined 2020-09-21 07:28:40 +02:00
38c3097bcf Validate fragments are input types 2020-09-20 06:59:27 +02:00
21a7d9cce4 Validate variable names are unique 2020-09-19 18:18:26 +02:00
9a08aa5de7 Validate directives are unique per location 2020-09-18 07:32:58 +02:00
497b93c41b Validate arguments have unique names 2020-09-17 10:33:37 +02:00
6e644c5b4b Move path to the execution error
Since it isn't possible to get a path during validation, without
executing the query.
2020-09-16 09:12:49 +02:00
4c10ce9204 Use Seq as base monad in the validator
It is more natural to implement the logic: try to apply each rule to
each node.
2020-09-15 08:06:07 +02:00
08998dbd93 Validate fragments don't form cycles 2020-09-11 08:03:49 +02:00
c2c57b6363 Validate all fragments are used 2020-09-09 17:04:31 +02:00
f6ff0ab9c7 Validate fragments on composite types 2020-09-07 22:01:49 +02:00
d327d9d1ce Validate fragment spread type existence 2020-09-05 10:00:58 +02:00
14ed209828 Collect types from the subscription root 2020-09-04 19:12:19 +02:00
33318a3b01 Validate fragment spread target existence 2020-08-31 11:06:27 +02:00
7e78f98f09 Validate fragment name uniqueness 2020-08-28 08:32:21 +02:00
eebad8a27f Validate operation name uniqueness
Fixes #52.
2020-08-27 09:04:31 +02:00
e6a6926e18 Validate anonymous operation definitions 2020-08-26 18:58:48 +02:00
7355533268 Validate single root field in subscriptions 2020-08-25 21:03:42 +02:00
54dbf1df16 Remove encoder test based on old external files 2020-08-22 06:39:52 +02:00
44d506d4b5 Draft the Validation API 2020-07-20 21:29:12 +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 #42.
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 #5.
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
840e129c44 Parse subscriptions 2020-07-11 06:34:10 +02:00
28781586a5 Parse comments in the front of definitions 2020-07-09 08:11:12 +02:00
c9e265f72c Return parser error location in a list
An error can have multiple locations which are returned in a listt with
key "locations".
2020-07-08 08:17:55 +02:00
a6f9cec413 Handle errors using custom types
Fixes #32.
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 #45.
2020-06-13 07:20:19 +02:00
e8c54810f8 Merge selection sets 2020-06-12 07:58:08 +02:00
c37b9c88b1 Skip unknown fields 2020-06-10 11:42:00 +02:00
377c87045e Add description to the enum type values 2020-06-07 06:16:45 +02:00
4c9264c12c Coerce argument values properly
Fixes #44.
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
26cc53ce06 Reject variables as default values 2020-05-22 10:11:48 +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 #33 .
2020-05-10 18:32:58 +02:00
Dmitrii Skurikhin
2760bd8ee1 Don't encode controls as block strings
Fixes #39.

String containing control sequences should be encoded as simple strings
even if they contain newlines, since the block strings can contain only
SourceCharacters.
2020-04-10 11:19:36 +02:00
Dmitrii Skurikhin
30d6a0a58d encode null value as "null" 2020-03-31 10:04:34 +03:00
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
e8b82122c6 Try all extension parsers 2020-01-28 11:08:28 +01:00
b4a3c98114 Parse schema extensions 2020-01-25 16:45:39 +01:00
3ef27f9d11 Add "extend symbol" lexer to parse extensions 2020-01-17 12:29:06 +01:00
ba710a3c96 Parse complete TypeSystemDefinition 2020-01-15 20:20:50 +01:00
d257d05d4e Parse enum and input object type definitions 2020-01-13 08:21:02 +01:00
adffa185bb Parse interface type definition 2020-01-13 08:21:02 +01:00
f4ed06741d Parse union definitions 2020-01-13 08:21:02 +01:00
8efb08fda1 Parse ObjectDefinition 2020-01-13 08:21:02 +01:00
d9a2937b55 Parse SchemaDefinition 2020-01-13 08:18:30 +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
fdf5914626 Move AST to AST.Document 2019-12-28 07:07:58 +01:00
62f3c34bfe Replace AST.Selection data constructors 2019-12-25 06:45:29 +01:00
b215e1a4a7 Pretify multi-line string arguments as block strings
Fixes #10.
2019-12-21 09:25:05 +01:00
1e55f17e7e Encode Unicode. Fix #34 2019-12-20 07:58:09 +01:00
9a5d54c035 Escape non-source characters in the encoder 2019-12-19 06:59:27 +01:00
3c1a5c800f Support directives (skip and include)
Fixes #24.
2019-12-06 22:52:24 +01:00
fc9ad9c4a1 Consider __typename when evaluating fragments
Fixes #30.
2019-12-02 07:43:19 +01:00
Sam Nolan
def52ddc20 Fix strings not consuming spaces
Fixes #28
2019-11-28 19:09:26 +11:00
Sam Nolan
73e21661b4 Fix failed parsing on multiple required arguments
Fixes #25.
2019-11-21 08:51:42 +01:00
115aa02672 Fail on cyclic fragments, fix #22 2019-11-14 20:40:09 +01:00
31c516927d Support nested fragments in any order
Fix #19.
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 #18.

- `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 #17.
2019-10-19 10:00:25 +02:00
37254c8c95 Inline fragments without type
Fixes #11.
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 #13.
2019-09-27 10:50:38 +02:00
c075a41582 Add pending inline fragment tests 2019-09-13 20:33:39 +02:00
1704022e74 Fix #12 2019-09-06 07:48:01 +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
045b6d15fb Escape special characters in the encoded strings
Fixes #2.
2019-08-13 07:24:05 +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
282946560e Add singleError utility function 2019-07-23 07:22:32 +02:00
1b5094b6a3 Parse the BOM header if any 2019-07-22 05:50:00 +02:00
f3b8d9b74c Make all exports explicit 2019-07-14 05:58:05 +02:00
eb40810f25 Replace tasty and HUnit with Hspec 2019-07-10 05:57:35 +02:00
61879fb124 Constrain the resolvers with MonadIO
This replaces the most usages of MonadPlus, which is not appropriate for
the resolvers, since a resolver is unambiguously chosen by the name (no
need for 'mplus'), and the resolvers are often doing IO.
2019-07-08 10:15:47 +02:00
22d4a4e583 Change the main namespace to Language.GraphQL 2019-07-07 06:31:53 +02:00
d7b6fd0329 Allow resolvers to return arbitrary nested lists 2019-07-05 20:05:04 +02:00
6238b2fbfa Add nullable types 2019-07-03 17:54:50 +02:00
91679650b5 Introduce monad transformer for resolvers
Now the errors in the resolvers can be handled and 3 tests throwing
errors pass now. Another test fail but it requires distinguisching
nullable and non-nullable values.
2019-07-02 20:07:26 +02:00
79c734fa62 Replace Alternative with MonadPlus 2019-06-28 11:12:28 +02:00
ae4038eb47 Restore error handling 2019-06-27 08:00:59 +02:00
3cc38343db Fix ambigious Int resolution in the lexer tests 2019-06-26 15:41:30 +02:00