graphql

package
v0.8.4 Latest Latest
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 Go to latest Published: Mar 6, 2019 License: MIT Imports: 13 Imported by: 0

Documentation

Index

Constants

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const Version = "dev"

Variables

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var False = &lit{falseLit}
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var Null = &lit{nullLit}
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var True = &lit{trueLit}

Functions

func AddError 

func AddError(ctx context.Context, err error)

AddError is a convenience method for adding an error to the current response

func AddErrorf 

func AddErrorf(ctx context.Context, format string, args ...interface{})

AddErrorf is a convenience method for adding an error to the current response

func CollectAllFields added in v0.8.2 

func CollectAllFields(ctx context.Context) []string

CollectAllFields returns a slice of all GraphQL field names that were selected for the current resolver context. The slice will contain the unique set of all field names requested regardless of fragment type conditions.

func DefaultDirectiveMiddleware 

func DefaultDirectiveMiddleware(ctx context.Context, next Resolver) (res interface{}, err error)

func DefaultErrorPresenter 

func DefaultErrorPresenter(ctx context.Context, err error) *gqlerror.Error

func DefaultRecover 

func DefaultRecover(ctx context.Context, err interface{}) error

func DefaultRequestMiddleware 

func DefaultRequestMiddleware(ctx context.Context, next func(ctx context.Context) []byte) []byte

func DefaultResolverMiddleware 

func DefaultResolverMiddleware(ctx context.Context, next Resolver) (res interface{}, err error)

func OneShot 

func OneShot(resp *Response) func() *Response

func UnmarshalBoolean 

func UnmarshalBoolean(v interface{}) (bool, error)

func UnmarshalFloat 

func UnmarshalFloat(v interface{}) (float64, error)

func UnmarshalID 

func UnmarshalID(v interface{}) (string, error)

func UnmarshalInt 

func UnmarshalInt(v interface{}) (int, error)

func UnmarshalInt32 added in v0.8.2 

func UnmarshalInt32(v interface{}) (int32, error)

func UnmarshalInt64 added in v0.8.2 

func UnmarshalInt64(v interface{}) (int64, error)

func UnmarshalIntID added in v0.8.2 

func UnmarshalIntID(v interface{}) (int, error)

func UnmarshalMap 

func UnmarshalMap(v interface{}) (map[string]interface{}, error)

func UnmarshalString 

func UnmarshalString(v interface{}) (string, error)

func UnmarshalTime 

func UnmarshalTime(v interface{}) (time.Time, error)

func WithRequestContext 

func WithRequestContext(ctx context.Context, rc *RequestContext) context.Context

func WithResolverContext 

func WithResolverContext(ctx context.Context, rc *ResolverContext) context.Context

Types

type Array 

type Array []Marshaler

func (Array) MarshalGQL 

func (a Array) MarshalGQL(writer io.Writer)

type CollectedField 

type CollectedField struct {
	*ast.Field

	Selections ast.SelectionSet
}

func CollectFields 

func CollectFields(ctx context.Context, selSet ast.SelectionSet, satisfies []string) []CollectedField

CollectFields returns the set of fields from an ast.SelectionSet where all collected fields satisfy at least one of the GraphQL types passed through satisfies. Providing an empty or nil slice for satisfies will return collect all fields regardless of fragment type conditions.

func CollectFieldsCtx 

func CollectFieldsCtx(ctx context.Context, satisfies []string) []CollectedField

This is just a convenient wrapper method for CollectFields

type ErrorPresenterFunc 

type ErrorPresenterFunc func(context.Context, error) *gqlerror.Error

type ExecutableSchema 

type ExecutableSchema interface {
	Schema() *ast.Schema

	Complexity(typeName, fieldName string, childComplexity int, args map[string]interface{}) (int, bool)
	Query(ctx context.Context, op *ast.OperationDefinition) *Response
	Mutation(ctx context.Context, op *ast.OperationDefinition) *Response
	Subscription(ctx context.Context, op *ast.OperationDefinition) func() *Response
}

type ExtendedError 

type ExtendedError interface {
	Extensions() map[string]interface{}
}

type FieldMiddleware 

type FieldMiddleware func(ctx context.Context, next Resolver) (res interface{}, err error)

func ChainFieldMiddleware added in v0.8.2 

func ChainFieldMiddleware(handleFunc ...FieldMiddleware) FieldMiddleware

ChainFieldMiddleware add chain by FieldMiddleware

type FieldSet added in v0.8.2 

type FieldSet struct {
	Values []Marshaler
	// contains filtered or unexported fields
}

func NewFieldSet added in v0.8.2 

func NewFieldSet(fields []CollectedField) *FieldSet

func (*FieldSet) Concurrently added in v0.8.2 

func (m *FieldSet) Concurrently(i int, f func() Marshaler)

func (*FieldSet) Dispatch added in v0.8.2 

func (m *FieldSet) Dispatch()

func (*FieldSet) MarshalGQL added in v0.8.2 

func (m *FieldSet) MarshalGQL(writer io.Writer)

type Marshaler 

type Marshaler interface {
	MarshalGQL(w io.Writer)
}

func MarshalBoolean 

func MarshalBoolean(b bool) Marshaler

func MarshalFloat 

func MarshalFloat(f float64) Marshaler

func MarshalID 

func MarshalID(s string) Marshaler

func MarshalInt 

func MarshalInt(i int) Marshaler

func MarshalInt32 added in v0.8.2 

func MarshalInt32(i int32) Marshaler

func MarshalInt64 added in v0.8.2 

func MarshalInt64(i int64) Marshaler

func MarshalIntID added in v0.8.2 

func MarshalIntID(i int) Marshaler

func MarshalMap 

func MarshalMap(val map[string]interface{}) Marshaler

func MarshalString 

func MarshalString(s string) Marshaler

func MarshalTime 

func MarshalTime(t time.Time) Marshaler

type Mutation added in v0.8.2 

type Mutation struct{}

type NopTracer added in v0.7.0 

type NopTracer struct{}

func (NopTracer) EndFieldExecution added in v0.7.0 

func (NopTracer) EndFieldExecution(ctx context.Context)

func (NopTracer) EndOperationExecution added in v0.7.0 

func (NopTracer) EndOperationExecution(ctx context.Context)

func (NopTracer) EndOperationParsing added in v0.7.0 

func (NopTracer) EndOperationParsing(ctx context.Context)

func (NopTracer) EndOperationValidation added in v0.7.0 

func (NopTracer) EndOperationValidation(ctx context.Context)

func (NopTracer) StartFieldChildExecution added in v0.7.0 

func (NopTracer) StartFieldChildExecution(ctx context.Context) context.Context

func (NopTracer) StartFieldExecution added in v0.7.0 

func (NopTracer) StartFieldExecution(ctx context.Context, field CollectedField) context.Context

func (NopTracer) StartFieldResolverExecution added in v0.7.0 

func (NopTracer) StartFieldResolverExecution(ctx context.Context, rc *ResolverContext) context.Context

func (NopTracer) StartOperationExecution added in v0.7.0 

func (NopTracer) StartOperationExecution(ctx context.Context) context.Context

func (NopTracer) StartOperationParsing added in v0.7.0 

func (NopTracer) StartOperationParsing(ctx context.Context) context.Context

func (NopTracer) StartOperationValidation added in v0.7.0 

func (NopTracer) StartOperationValidation(ctx context.Context) context.Context

type Query added in v0.8.2 

type Query struct{}

type RecoverFunc 

type RecoverFunc func(ctx context.Context, err interface{}) (userMessage error)

type RequestContext 

type RequestContext struct {
	RawQuery  string
	Variables map[string]interface{}
	Doc       *ast.QueryDocument

	ComplexityLimit      int
	OperationComplexity  int
	DisableIntrospection bool

	// ErrorPresenter will be used to generate the error
	// message from errors given to Error().
	ErrorPresenter      ErrorPresenterFunc
	Recover             RecoverFunc
	ResolverMiddleware  FieldMiddleware
	DirectiveMiddleware FieldMiddleware
	RequestMiddleware   RequestMiddleware
	Tracer              Tracer

	Errors gqlerror.List

	Extensions map[string]interface{}
	// contains filtered or unexported fields
}

func GetRequestContext 

func GetRequestContext(ctx context.Context) *RequestContext

func NewRequestContext 

func NewRequestContext(doc *ast.QueryDocument, query string, variables map[string]interface{}) *RequestContext

func (*RequestContext) Error 

func (c *RequestContext) Error(ctx context.Context, err error)

Error sends an error to the client, passing it through the formatter.

func (*RequestContext) Errorf 

func (c *RequestContext) Errorf(ctx context.Context, format string, args ...interface{})

Errorf sends an error string to the client, passing it through the formatter.

func (*RequestContext) GetErrors added in v0.7.0 

func (c *RequestContext) GetErrors(rctx *ResolverContext) gqlerror.List

GetErrors returns a list of errors that occurred in the current field

func (*RequestContext) HasError added in v0.5.0 

func (c *RequestContext) HasError(rctx *ResolverContext) bool

HasError returns true if the current field has already errored

func (*RequestContext) RegisterExtension added in v0.6.0 

func (c *RequestContext) RegisterExtension(key string, value interface{}) error

RegisterExtension registers an extension, returns error if extension has already been registered

type RequestMiddleware 

type RequestMiddleware func(ctx context.Context, next func(ctx context.Context) []byte) []byte

type Resolver 

type Resolver func(ctx context.Context) (res interface{}, err error)

type ResolverContext 

type ResolverContext struct {
	Parent *ResolverContext
	// The name of the type this field belongs to
	Object string
	// These are the args after processing, they can be mutated in middleware to change what the resolver will get.
	Args map[string]interface{}
	// The raw field
	Field CollectedField
	// The index of array in path.
	Index *int
	// The result object of resolver
	Result interface{}
}

func GetResolverContext 

func GetResolverContext(ctx context.Context) *ResolverContext

func (*ResolverContext) Path 

func (r *ResolverContext) Path() []interface{}

type Response 

type Response struct {
	Errors     gqlerror.List          `json:"errors,omitempty"`
	Data       json.RawMessage        `json:"data"`
	Extensions map[string]interface{} `json:"extensions,omitempty"`
}

Errors are intentionally serialized first based on the advice in https://github.com/facebook/graphql/commit/7b40390d48680b15cb93e02d46ac5eb249689876#diff-757cea6edf0288677a9eea4cfc801d87R107 and https://github.com/facebook/graphql/pull/384

func ErrorResponse 

func ErrorResponse(ctx context.Context, messagef string, args ...interface{}) *Response

type Subscription added in v0.8.2 

type Subscription struct{}

type Tracer added in v0.7.0 

type Tracer interface {
	StartOperationParsing(ctx context.Context) context.Context
	EndOperationParsing(ctx context.Context)
	StartOperationValidation(ctx context.Context) context.Context
	EndOperationValidation(ctx context.Context)
	StartOperationExecution(ctx context.Context) context.Context
	StartFieldExecution(ctx context.Context, field CollectedField) context.Context
	StartFieldResolverExecution(ctx context.Context, rc *ResolverContext) context.Context
	StartFieldChildExecution(ctx context.Context) context.Context
	EndFieldExecution(ctx context.Context)
	EndOperationExecution(ctx context.Context)
}

type Unmarshaler 

type Unmarshaler interface {
	UnmarshalGQL(v interface{}) error
}

type WriterFunc 

type WriterFunc func(writer io.Writer)

func (WriterFunc) MarshalGQL 

func (f WriterFunc) MarshalGQL(w io.Writer)

Source Files

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Directories

Path Synopsis
introspection implements the spec defined in https://github.com/facebook/graphql/blob/master/spec/Section%204%20--%20Introspection.md#schema-introspection
 introspection implements the spec defined in https://github.com/facebook/graphql/blob/master/spec/Section%204%20--%20Introspection.md#schema-introspection

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