transport

package
v0.13.7 Latest Latest
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 Go to latest Published: Nov 17, 2022 License: MIT Imports: 21 Imported by: 0

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Constants

This section is empty.

Variables

View Source 
var ErrClosedConnection = fmt.Errorf("closed connection")

Functions

This section is empty.

Types

type ChanResponse 

type ChanResponse struct {
	// contains filtered or unexported fields
}

func NewChanResponse 

func NewChanResponse(onClose func() error) *ChanResponse

func (*ChanResponse) Close 

func (r *ChanResponse) Close()

func (*ChanResponse) CloseCh 

func (r *ChanResponse) CloseCh()

func (*ChanResponse) CloseWithError 

func (r *ChanResponse) CloseWithError(err error)

func (*ChanResponse) Done 

func (r *ChanResponse) Done() <-chan struct{}

func (*ChanResponse) Err 

func (r *ChanResponse) Err() error

func (*ChanResponse) Get 

func (r *ChanResponse) Get() OperationResponse

func (*ChanResponse) Next 

func (r *ChanResponse) Next() bool

func (*ChanResponse) Send 

func (r *ChanResponse) Send(op OperationResponse)

type ConnOptions 

type ConnOptions struct {
	Context context.Context
	URL     string
	Timeout time.Duration
}

type Func 

type Func func(Request) Response

func (Func) Request 

func (f Func) Request(req Request) Response

type Http 

type Http struct {
	URL string
	// Client defaults to http.DefaultClient
	Client           *http.Client
	RequestOptions   []HttpRequestOption
	UseFormMultipart bool
}

func (*Http) Request 

func (h *Http) Request(req Request) Response

type HttpRequestOption 

type HttpRequestOption func(req *http.Request)

type Mock 

type Mock map[string]Func

func (Mock) Request 

func (m Mock) Request(req Request) Response

type Operation 

type Operation string
const (
	Query        Operation = "query"
	Mutation     Operation = "mutation"
	Subscription Operation = "subscription"
)

type OperationMessage 

type OperationMessage struct {
	ID      string               `json:"id,omitempty"`
	Type    OperationMessageType `json:"type"`
	Payload json.RawMessage      `json:"payload,omitempty"`
}

func (OperationMessage) String 

func (msg OperationMessage) String() string

type OperationMessageType 

type OperationMessageType string
const (
	// GQL_CONNECTION_INIT the Client sends this message after plain websocket connection to start the communication with the server
	GQL_CONNECTION_INIT OperationMessageType = "connection_init"
	// GQL_CONNECTION_ERROR The server may responses with this message to the GQL_CONNECTION_INIT from client, indicates the server rejected the connection.
	GQL_CONNECTION_ERROR OperationMessageType = "conn_err"
	// GQL_START Client sends this message to execute GraphQL operation
	GQL_START OperationMessageType = "start"
	// GQL_STOP Client sends this message in order to stop a running GraphQL operation execution (for example: unsubscribe)
	GQL_STOP OperationMessageType = "stop"
	// GQL_ERROR Server sends this message upon a failing operation, before the GraphQL execution, usually due to GraphQL validation errors (resolver errors are part of GQL_DATA message, and will be added as errors array)
	GQL_ERROR OperationMessageType = "error"
	// GQL_DATA The server sends this message to transfter the GraphQL execution result from the server to the client, this message is a response for GQL_START message.
	GQL_DATA OperationMessageType = "data"
	// GQL_COMPLETE Server sends this message to indicate that a GraphQL operation is done, and no more data will arrive for the specific operation.
	GQL_COMPLETE OperationMessageType = "complete"
	// GQL_CONNECTION_KEEP_ALIVE Server message that should be sent right after each GQL_CONNECTION_ACK processed and then periodically to keep the client connection alive.
	// The client starts to consider the keep alive message only upon the first received keep alive message from the server.
	GQL_CONNECTION_KEEP_ALIVE OperationMessageType = "ka"
	// GQL_CONNECTION_ACK The server may responses with this message to the GQL_CONNECTION_INIT from client, indicates the server accepted the connection. May optionally include a payload.
	GQL_CONNECTION_ACK OperationMessageType = "connection_ack"
	// GQL_CONNECTION_TERMINATE the Client sends this message to terminate the connection.
	GQL_CONNECTION_TERMINATE OperationMessageType = "connection_terminate"

	// GQL_UNKNOWN is an Unknown operation type, for logging only
	GQL_UNKNOWN OperationMessageType = "unknown"
	// GQL_INTERNAL is the Internal status, for logging only
	GQL_INTERNAL OperationMessageType = "internal"
)

type OperationRequest 

type OperationRequest struct {
	Query         string                 `json:"query,omitempty"`
	OperationName string                 `json:"operationName,omitempty"`
	Variables     map[string]interface{} `json:"variables,omitempty"`
	Extensions    map[string]interface{} `json:"extensions,omitempty"`
}

func NewOperationRequestFromRequest 

func NewOperationRequestFromRequest(req Request) OperationRequest

type OperationResponse 

type OperationResponse struct {
	Data       json.RawMessage `json:"data,omitempty"`
	Errors     gqlerror.List   `json:"errors,omitempty"`
	Extensions RawExtensions   `json:"extensions,omitempty"`
}

func NewMockOperationResponse 

func NewMockOperationResponse(v interface{}, errs gqlerror.List) OperationResponse

func (OperationResponse) UnmarshalData 

func (r OperationResponse) UnmarshalData(t interface{}) error

type ProxyResponse 

type ProxyResponse struct {
	// contains filtered or unexported fields
}

func NewProxyResponse 

func NewProxyResponse() *ProxyResponse

func (*ProxyResponse) Bind 

func (p *ProxyResponse) Bind(res Response, onOpres func(response OperationResponse, send func()))

func (*ProxyResponse) Bound 

func (p *ProxyResponse) Bound(res Response) bool

func (*ProxyResponse) Unbind 

func (p *ProxyResponse) Unbind(res Response)

type RawExtensions 

type RawExtensions map[string]json.RawMessage

func (RawExtensions) Unmarshal 

func (es RawExtensions) Unmarshal(name string, t interface{}) error

type Request 

type Request struct {
	Context   context.Context
	Operation Operation

	OperationName          string
	Query                  string
	Variables              map[string]interface{}
	Extensions             map[string]interface{}
	OverrideRequestOptions []HttpRequestOption
}

type Response 

type Response interface {
	Next() bool
	Get() OperationResponse
	Close()
	CloseWithError(err error)
	Err() error
	Done() <-chan struct{}
}

func NewErrorResponse 

func NewErrorResponse(err error) Response

type SendResponse 

type SendResponse interface {
	Response
	Send(OperationResponse)
}

type SingleResponse 

type SingleResponse struct {
	// contains filtered or unexported fields
}

func NewSingleResponse 

func NewSingleResponse(or OperationResponse) *SingleResponse

func (*SingleResponse) Close 

func (r *SingleResponse) Close()

func (*SingleResponse) CloseWithError 

func (r *SingleResponse) CloseWithError(err error)

func (*SingleResponse) Done 

func (r *SingleResponse) Done() <-chan struct{}

func (*SingleResponse) Err 

func (r *SingleResponse) Err() error

func (*SingleResponse) Get 

func (r *SingleResponse) Get() OperationResponse

func (*SingleResponse) Next 

func (r *SingleResponse) Next() bool

type Status 

type Status int
const (
	StatusDisconnected Status = iota
	StatusConnected
	StatusReady
)

func (Status) String 

func (s Status) String() string

type Transport 

type Transport interface {
	Request(req Request) Response
}

func Split 

func Split(f func(Request) (Transport, error)) Transport

func SplitSubscription 

func SplitSubscription(subtr, othertr Transport) Transport

SplitSubscription routes subscription to subtr, and other type of queries to othertr

type WebsocketConn 

type WebsocketConn interface {
	ReadJSON(v interface{}) error
	WriteJSON(v interface{}) error
	Close() error
	// SetReadLimit sets the maximum size in bytes for a message read from the peer. If a
	// message exceeds the limit, the connection sends a close message to the peer
	// and returns ErrReadLimit to the application.
	SetReadLimit(limit int64)
}

type WebsocketConnProvider 

type WebsocketConnProvider func(ctx context.Context, URL string) (WebsocketConn, error)

func DefaultWebsocketConnProvider 

func DefaultWebsocketConnProvider(timeout time.Duration, optionfs ...WsDialOption) WebsocketConnProvider

DefaultWebsocketConnProvider is the connections factory A timeout of 0 means no timeout, reading will block until a message is received or the context is canceled If your server supports the keepalive, set the timeout to something greater than the server keepalive (for example 15s for a 10s keepalive)

type WebsocketHandler 

type WebsocketHandler struct {
	*websocket.Conn
	// contains filtered or unexported fields
}

WebsocketHandler is default websocket handler implementation using https://github.com/nhooyr/websocket

func (*WebsocketHandler) Close 

func (wh *WebsocketHandler) Close() error

func (*WebsocketHandler) ReadJSON 

func (wh *WebsocketHandler) ReadJSON(v interface{}) error

func (*WebsocketHandler) WriteJSON 

func (wh *WebsocketHandler) WriteJSON(v interface{}) error

type Ws 

type Ws struct {
	URL string
	// WebsocketConnProvider defaults to DefaultWebsocketConnProvider(30 * time.Second)
	WebsocketConnProvider WebsocketConnProvider
	// ConnectionParams will be sent during the connection init
	ConnectionParams interface{}
	// contains filtered or unexported fields
}

Ws transports GQL queries over websocket Start() must be called to initiate the websocket connection Close() must be called to dispose of the transport

func (*Ws) Close 

func (t *Ws) Close() error

func (*Ws) GetConn 

func (t *Ws) GetConn() WebsocketConn

func (*Ws) Request 

func (t *Ws) Request(req Request) Response

func (*Ws) Reset 

func (t *Ws) Reset()

func (*Ws) ResetWithErr 

func (t *Ws) ResetWithErr(err error)

func (*Ws) Start 

func (t *Ws) Start(ctx context.Context) <-chan error

func (*Ws) WaitFor 

func (t *Ws) WaitFor(st Status, s time.Duration)

type WsDialOption 

type WsDialOption func(o *websocket.DialOptions)

Source Files

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