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websocket_test.go
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package integration_test
import (
"crypto/sha256"
"encoding/json"
"errors"
"fmt"
"io"
"math/big"
"net"
"net/http"
"net/url"
"sync"
"sync/atomic"
"testing"
"time"
"github.com/buger/jsonparser"
"github.com/gorilla/websocket"
"github.com/hasura/go-graphql-client"
"github.com/hasura/go-graphql-client/pkg/jsonutil"
"github.com/stretchr/testify/require"
"github.com/wundergraph/cosmo/router-tests/jwks"
"github.com/wundergraph/cosmo/router-tests/testenv"
"github.com/wundergraph/cosmo/router/core"
"github.com/wundergraph/cosmo/router/gen/proto/wg/cosmo/common"
nodev1 "github.com/wundergraph/cosmo/router/gen/proto/wg/cosmo/node/v1"
"github.com/wundergraph/cosmo/router/pkg/authentication"
"github.com/wundergraph/cosmo/router/pkg/config"
)
func TestWebSockets(t *testing.T) {
t.Parallel()
t.Run("disabled", func(t *testing.T) {
t.Parallel()
testenv.Run(t, &testenv.Config{
DisableWebSockets: true,
}, func(t *testing.T, xEnv *testenv.Environment) {
_, _, err := xEnv.GraphQLWebsocketDialWithRetry(nil)
require.Error(t, err)
})
})
t.Run("query", func(t *testing.T) {
t.Parallel()
testenv.Run(t, &testenv.Config{}, func(t *testing.T, xEnv *testenv.Environment) {
conn := xEnv.InitGraphQLWebSocketConnection(nil, nil)
err := conn.WriteJSON(testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"{ employees { id } }"}`),
})
require.NoError(t, err)
var res testenv.WebSocketMessage
err = conn.ReadJSON(&res)
require.NoError(t, err)
require.Equal(t, "next", res.Type)
require.Equal(t, "1", res.ID)
require.JSONEq(t, `{"data":{"employees":[{"id":1},{"id":2},{"id":3},{"id":4},{"id":5},{"id":7},{"id":8},{"id":10},{"id":11},{"id":12}]}}`, string(res.Payload))
var complete testenv.WebSocketMessage
err = conn.ReadJSON(&complete)
require.NoError(t, err)
require.Equal(t, "complete", complete.Type)
require.Equal(t, "1", complete.ID)
xEnv.WaitForSubscriptionCount(0, time.Second*5)
})
})
t.Run("query with authorization reject", func(t *testing.T) {
t.Parallel()
authServer, err := jwks.NewServer(t)
require.NoError(t, err)
t.Cleanup(authServer.Close)
authOptions := authentication.JWKSAuthenticatorOptions{
Name: jwksName,
URL: authServer.JWKSURL(),
}
authenticator, err := authentication.NewJWKSAuthenticator(authOptions)
require.NoError(t, err)
authenticators := []authentication.Authenticator{authenticator}
testenv.Run(t, &testenv.Config{
RouterOptions: []core.Option{
core.WithAccessController(core.NewAccessController(authenticators, false)),
core.WithAuthorizationConfig(&config.AuthorizationConfiguration{
RejectOperationIfUnauthorized: true,
}),
},
}, func(t *testing.T, xEnv *testenv.Environment) {
token, err := authServer.Token(nil)
require.NoError(t, err)
header := http.Header{
"Authorization": []string{"Bearer " + token},
}
conn := xEnv.InitGraphQLWebSocketConnection(header, nil)
err = conn.WriteJSON(testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"{ employees { id startDate } }"}`),
})
require.NoError(t, err)
var res testenv.WebSocketMessage
err = conn.ReadJSON(&res)
require.NoError(t, err)
require.Equal(t, "error", res.Type)
require.Equal(t, "1", res.ID)
require.Equal(t, `[{"message":"Unauthorized"}]`, string(res.Payload))
var complete testenv.WebSocketMessage
err = conn.ReadJSON(&complete)
require.NoError(t, err)
require.Equal(t, "complete", complete.Type)
require.Equal(t, "1", complete.ID)
xEnv.WaitForSubscriptionCount(0, time.Second*5)
})
})
t.Run("query with authorization no-reject", func(t *testing.T) {
t.Parallel()
authServer, err := jwks.NewServer(t)
require.NoError(t, err)
t.Cleanup(authServer.Close)
authOptions := authentication.JWKSAuthenticatorOptions{
Name: jwksName,
URL: authServer.JWKSURL(),
}
authenticator, err := authentication.NewJWKSAuthenticator(authOptions)
require.NoError(t, err)
authenticators := []authentication.Authenticator{authenticator}
testenv.Run(t, &testenv.Config{
RouterOptions: []core.Option{
core.WithAccessController(core.NewAccessController(authenticators, false)),
core.WithAuthorizationConfig(&config.AuthorizationConfiguration{
RejectOperationIfUnauthorized: false,
}),
},
}, func(t *testing.T, xEnv *testenv.Environment) {
token, err := authServer.Token(nil)
require.NoError(t, err)
header := http.Header{
"Authorization": []string{"Bearer " + token},
}
conn := xEnv.InitGraphQLWebSocketConnection(header, nil)
err = conn.WriteJSON(testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"{ employees { id startDate } }"}`),
})
require.NoError(t, err)
var res testenv.WebSocketMessage
err = conn.ReadJSON(&res)
require.NoError(t, err)
require.Equal(t, "error", res.Type)
require.Equal(t, "1", res.ID)
require.Equal(t, `[{"message":"Unauthorized to load field 'Query.employees.startDate', Reason: not authenticated.","path":["employees",0,"startDate"]}]`, string(res.Payload))
var complete testenv.WebSocketMessage
err = conn.ReadJSON(&complete)
require.NoError(t, err)
require.Equal(t, "complete", complete.Type)
require.Equal(t, "1", complete.ID)
xEnv.WaitForSubscriptionCount(0, time.Second*5)
})
})
t.Run("subscription with authorization no-reject", func(t *testing.T) {
t.Parallel()
authServer, err := jwks.NewServer(t)
require.NoError(t, err)
t.Cleanup(authServer.Close)
authOptions := authentication.JWKSAuthenticatorOptions{
Name: jwksName,
URL: authServer.JWKSURL(),
}
authenticator, err := authentication.NewJWKSAuthenticator(authOptions)
require.NoError(t, err)
authenticators := []authentication.Authenticator{authenticator}
testenv.Run(t, &testenv.Config{
RouterOptions: []core.Option{
core.WithAccessController(core.NewAccessController(authenticators, false)),
core.WithAuthorizationConfig(&config.AuthorizationConfiguration{
RejectOperationIfUnauthorized: false,
}),
},
}, func(t *testing.T, xEnv *testenv.Environment) {
token, err := authServer.Token(nil)
require.NoError(t, err)
header := http.Header{
"Authorization": []string{"Bearer " + token},
}
conn := xEnv.InitGraphQLWebSocketConnection(header, nil)
err = conn.WriteJSON(testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"subscription { employeeUpdated(employeeID: 3) { id details { forename surname } startDate }}"}`),
})
require.NoError(t, err)
go func() {
xEnv.WaitForSubscriptionCount(1, time.Second*5)
// Trigger the subscription via NATS
subject := "employeeUpdated.3"
message := []byte(`{"id":3,"__typename": "Employee"}`)
err := xEnv.NatsConnectionDefault.Publish(subject, message)
require.NoError(t, err)
err = xEnv.NatsConnectionDefault.Flush()
require.NoError(t, err)
}()
var res testenv.WebSocketMessage
err = conn.ReadJSON(&res)
require.NoError(t, err)
require.Equal(t, "error", res.Type)
require.Equal(t, "1", res.ID)
require.Equal(t, `[{"message":"Unauthorized to load field 'Subscription.employeeUpdated.startDate', Reason: not authenticated.","path":["employeeUpdated","startDate"]}]`, string(res.Payload))
var complete testenv.WebSocketMessage
err = conn.ReadJSON(&complete)
require.NoError(t, err)
require.Equal(t, "complete", complete.Type)
require.Equal(t, "1", complete.ID)
xEnv.WaitForSubscriptionCount(0, time.Second*5)
})
})
t.Run("subscription with authorization reject", func(t *testing.T) {
t.Parallel()
authServer, err := jwks.NewServer(t)
require.NoError(t, err)
t.Cleanup(authServer.Close)
authOptions := authentication.JWKSAuthenticatorOptions{
Name: jwksName,
URL: authServer.JWKSURL(),
}
authenticator, err := authentication.NewJWKSAuthenticator(authOptions)
require.NoError(t, err)
authenticators := []authentication.Authenticator{authenticator}
testenv.Run(t, &testenv.Config{
RouterOptions: []core.Option{
core.WithAccessController(core.NewAccessController(authenticators, false)),
core.WithAuthorizationConfig(&config.AuthorizationConfiguration{
RejectOperationIfUnauthorized: true,
}),
},
}, func(t *testing.T, xEnv *testenv.Environment) {
token, err := authServer.Token(nil)
require.NoError(t, err)
header := http.Header{
"Authorization": []string{"Bearer " + token},
}
conn := xEnv.InitGraphQLWebSocketConnection(header, nil)
err = conn.WriteJSON(testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"subscription { employeeUpdated(employeeID: 3) { id details { forename surname } startDate }}"}`),
})
require.NoError(t, err)
go func() {
xEnv.WaitForSubscriptionCount(1, time.Second*5)
// Trigger the subscription via NATS
subject := "employeeUpdated.3"
message := []byte(`{"id":3,"__typename": "Employee"}`)
err := xEnv.NatsConnectionDefault.Publish(subject, message)
require.NoError(t, err)
err = xEnv.NatsConnectionDefault.Flush()
require.NoError(t, err)
}()
var res testenv.WebSocketMessage
err = conn.ReadJSON(&res)
require.NoError(t, err)
require.Equal(t, "error", res.Type)
require.Equal(t, "1", res.ID)
require.Equal(t, `[{"message":"Unauthorized"}]`, string(res.Payload))
var complete testenv.WebSocketMessage
err = conn.ReadJSON(&complete)
require.NoError(t, err)
require.Equal(t, "complete", complete.Type)
require.Equal(t, "1", complete.ID)
xEnv.WaitForSubscriptionCount(0, time.Second*5)
})
})
t.Run("subscription", func(t *testing.T) {
t.Parallel()
testenv.Run(t, &testenv.Config{
ModifyEngineExecutionConfiguration: func(engineExecutionConfiguration *config.EngineExecutionConfiguration) {
engineExecutionConfiguration.WebSocketReadTimeout = time.Millisecond * 10
},
}, func(t *testing.T, xEnv *testenv.Environment) {
type currentTimePayload struct {
Data struct {
CurrentTime struct {
UnixTime float64 `json:"unixTime"`
Timestamp string `json:"timestamp"`
} `json:"currentTime"`
} `json:"data"`
}
conn := xEnv.InitGraphQLWebSocketConnection(nil, nil)
err := conn.WriteJSON(&testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"subscription { currentTime { unixTime timeStamp }}"}`),
})
require.NoError(t, err)
var msg testenv.WebSocketMessage
var payload currentTimePayload
// Read a result and store its timestamp, next result should be 1 second later
err = conn.ReadJSON(&msg)
require.NoError(t, err)
require.Equal(t, "1", msg.ID)
require.Equal(t, "next", msg.Type)
err = json.Unmarshal(msg.Payload, &payload)
require.NoError(t, err)
unix1 := payload.Data.CurrentTime.UnixTime
err = conn.ReadJSON(&msg)
require.NoError(t, err)
require.Equal(t, "1", msg.ID)
require.Equal(t, "next", msg.Type)
err = json.Unmarshal(msg.Payload, &payload)
require.NoError(t, err)
unix2 := payload.Data.CurrentTime.UnixTime
require.Greater(t, unix2, unix1)
// Sending a complete must stop the subscription
err = conn.WriteJSON(&testenv.WebSocketMessage{
ID: "1",
Type: "complete",
})
require.NoError(t, err)
var complete testenv.WebSocketMessage
err = conn.SetReadDeadline(time.Now().Add(1 * time.Second))
require.NoError(t, err)
err = conn.ReadJSON(&complete)
require.NoError(t, err)
require.Equal(t, "1", complete.ID)
require.Equal(t, "complete", complete.Type)
err = conn.SetReadDeadline(time.Now().Add(1 * time.Second))
require.NoError(t, err)
_, _, err = conn.ReadMessage()
require.Error(t, err)
var netErr net.Error
if errors.As(err, &netErr) {
require.True(t, netErr.Timeout())
} else {
require.Fail(t, "expected net.Error")
}
})
})
t.Run("subscription with header propagation", func(t *testing.T) {
t.Parallel()
headerRules := config.HeaderRules{
All: config.GlobalHeaderRule{
Request: []config.RequestHeaderRule{
{
Operation: config.HeaderRuleOperationPropagate,
Named: "Authorization",
},
},
},
}
testenv.Run(t, &testenv.Config{
ModifyEngineExecutionConfiguration: func(engineExecutionConfiguration *config.EngineExecutionConfiguration) {
engineExecutionConfiguration.WebSocketReadTimeout = time.Millisecond * 10
},
RouterOptions: []core.Option{
core.WithHeaderRules(headerRules),
},
Subgraphs: testenv.SubgraphsConfig{
Employees: testenv.SubgraphConfig{
Middleware: func(handler http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
upgrader := websocket.Upgrader{
CheckOrigin: func(r *http.Request) bool {
return true
},
Subprotocols: []string{"graphql-ws"},
}
require.Equal(t, "Bearer test", r.Header.Get("Authorization"))
conn, err := upgrader.Upgrade(w, r, nil)
require.NoError(t, err)
defer conn.Close()
_, message, err := conn.ReadMessage()
require.NoError(t, err)
require.Equal(t, `{"type":"connection_init","payload":{"Custom-Auth":"test","extensions":{"upgradeHeaders":{"Authorization":["Bearer test"],"User-Agent":["Go-http-client/1.1"]},"initialPayload":{"Custom-Auth":"test"}}}}`, string(message))
err = conn.WriteMessage(websocket.TextMessage, []byte(`{"type":"connection_ack"}`))
require.NoError(t, err)
_, message, err = conn.ReadMessage()
require.NoError(t, err)
require.Equal(t, `{"type":"start","id":"1","payload":{"query":"subscription{currentTime {unixTime timeStamp}}","extensions":{"upgradeHeaders":{"Authorization":["Bearer test"],"User-Agent":["Go-http-client/1.1"]},"initialPayload":{"Custom-Auth":"test"}}}}`, string(message))
err = conn.WriteMessage(websocket.TextMessage, []byte(`{"type":"data","id":"1","payload":{"data":{"currentTime":{"unixTime":1,"timeStamp":"2021-09-01T12:00:00Z"}}}}`))
require.NoError(t, err)
_, message, err = conn.ReadMessage()
if errors.Is(err, websocket.ErrCloseSent) {
return
}
require.Equal(t, `{"type":"stop","id":"1"}`, string(message))
err = conn.WriteMessage(websocket.TextMessage, []byte(`{"type":"complete","id":"1"}`))
require.NoError(t, err)
})
},
},
},
}, func(t *testing.T, xEnv *testenv.Environment) {
type currentTimePayload struct {
Data struct {
CurrentTime struct {
UnixTime float64 `json:"unixTime"`
Timestamp string `json:"timestamp"`
} `json:"currentTime"`
} `json:"data"`
}
conn := xEnv.InitGraphQLWebSocketConnection(http.Header{
"Authorization": []string{"Bearer test"},
}, []byte(`{"Custom-Auth":"test"}`))
err := conn.WriteJSON(&testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"subscription { currentTime { unixTime timeStamp }}"}`),
})
require.NoError(t, err)
var msg testenv.WebSocketMessage
var payload currentTimePayload
// Read a result and store its timestamp, next result should be 1 second later
err = conn.ReadJSON(&msg)
require.NoError(t, err)
require.Equal(t, "1", msg.ID)
require.Equal(t, "next", msg.Type)
err = json.Unmarshal(msg.Payload, &payload)
require.NoError(t, err)
require.Equal(t, float64(1), payload.Data.CurrentTime.UnixTime)
// Sending a complete must stop the subscription
err = conn.WriteJSON(&testenv.WebSocketMessage{
ID: "1",
Type: "complete",
})
require.NoError(t, err)
var complete testenv.WebSocketMessage
err = conn.SetReadDeadline(time.Now().Add(1 * time.Second))
require.NoError(t, err)
err = conn.ReadJSON(&complete)
require.NoError(t, err)
require.Equal(t, "1", complete.ID)
require.Equal(t, "complete", complete.Type)
err = conn.SetReadDeadline(time.Now().Add(1 * time.Second))
require.NoError(t, err)
_, _, err = conn.ReadMessage()
require.Error(t, err)
var netErr net.Error
if errors.As(err, &netErr) {
require.True(t, netErr.Timeout())
} else {
require.Fail(t, "expected net.Error")
}
})
})
t.Run("subscription with header propagation sse subgraph post", func(t *testing.T) {
t.Parallel()
headerRules := config.HeaderRules{
All: config.GlobalHeaderRule{
Request: []config.RequestHeaderRule{
{
Operation: config.HeaderRuleOperationPropagate,
Named: "Authorization",
},
},
},
}
testenv.Run(t, &testenv.Config{
ModifyEngineExecutionConfiguration: func(engineExecutionConfiguration *config.EngineExecutionConfiguration) {
engineExecutionConfiguration.WebSocketReadTimeout = time.Millisecond * 10
},
ModifyRouterConfig: func(cfg *nodev1.RouterConfig) {
for i := range cfg.EngineConfig.DatasourceConfigurations {
t := true
if cfg.EngineConfig.DatasourceConfigurations[i].CustomGraphql == nil {
continue
}
cfg.EngineConfig.DatasourceConfigurations[i].CustomGraphql.Subscription.UseSSE = &t
p := common.GraphQLSubscriptionProtocol_GRAPHQL_SUBSCRIPTION_PROTOCOL_SSE_POST
cfg.EngineConfig.DatasourceConfigurations[i].CustomGraphql.Subscription.Protocol = &p
}
},
RouterOptions: []core.Option{
core.WithHeaderRules(headerRules),
},
Subgraphs: testenv.SubgraphsConfig{
Employees: testenv.SubgraphConfig{
Middleware: func(handler http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
require.Equal(t, "Bearer test", r.Header.Get("Authorization"))
data, err := io.ReadAll(r.Body)
require.NoError(t, err)
defer r.Body.Close()
require.Equal(t, `{"query":"subscription{currentTime {unixTime timeStamp}}","extensions":{"upgradeHeaders":{"Authorization":["Bearer test"],"User-Agent":["Go-http-client/1.1"]},"initialPayload":{"Custom-Auth":"test"}}}`, string(data))
w.Header().Set("Content-Type", "text/event-stream")
w.Header().Set("Cache-Control", "no-cache")
w.Header().Set("Connection", "keep-alive")
w.WriteHeader(http.StatusOK)
flusher, ok := w.(http.Flusher)
if !ok {
http.Error(w, "Streaming unsupported!", http.StatusInternalServerError)
return
}
_, err = fmt.Fprintf(w, "data: %s\n\n", `{"data":{"currentTime":{"unixTime":1,"timeStamp":"2021-09-01T12:00:00Z"}}}`)
require.NoError(t, err)
flusher.Flush()
})
},
},
},
}, func(t *testing.T, xEnv *testenv.Environment) {
type currentTimePayload struct {
Data struct {
CurrentTime struct {
UnixTime float64 `json:"unixTime"`
Timestamp string `json:"timestamp"`
} `json:"currentTime"`
} `json:"data"`
}
conn := xEnv.InitGraphQLWebSocketConnection(http.Header{
"Authorization": []string{"Bearer test"},
}, []byte(`{"Custom-Auth":"test"}`))
err := conn.WriteJSON(&testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"subscription { currentTime { unixTime timeStamp }}"}`),
})
require.NoError(t, err)
var msg testenv.WebSocketMessage
var payload currentTimePayload
// Read a result and store its timestamp, next result should be 1 second later
err = conn.ReadJSON(&msg)
require.NoError(t, err)
require.Equal(t, "1", msg.ID)
require.Equal(t, "next", msg.Type)
err = json.Unmarshal(msg.Payload, &payload)
require.NoError(t, err)
require.Equal(t, float64(1), payload.Data.CurrentTime.UnixTime)
// Sending a complete must stop the subscription
err = conn.WriteJSON(&testenv.WebSocketMessage{
ID: "1",
Type: "complete",
})
require.NoError(t, err)
var complete testenv.WebSocketMessage
err = conn.SetReadDeadline(time.Now().Add(1 * time.Second))
require.NoError(t, err)
err = conn.ReadJSON(&complete)
require.NoError(t, err)
require.Equal(t, "1", complete.ID)
require.Equal(t, "complete", complete.Type)
err = conn.SetReadDeadline(time.Now().Add(1 * time.Second))
require.NoError(t, err)
_, _, err = conn.ReadMessage()
require.Error(t, err)
var netErr net.Error
if errors.As(err, &netErr) {
require.True(t, netErr.Timeout())
} else {
require.Fail(t, "expected net.Error")
}
})
})
t.Run("subscription with header propagation sse subgraph get", func(t *testing.T) {
t.Parallel()
headerRules := config.HeaderRules{
All: config.GlobalHeaderRule{
Request: []config.RequestHeaderRule{
{
Operation: config.HeaderRuleOperationPropagate,
Named: "Authorization",
},
},
},
}
testenv.Run(t, &testenv.Config{
ModifyEngineExecutionConfiguration: func(engineExecutionConfiguration *config.EngineExecutionConfiguration) {
engineExecutionConfiguration.WebSocketReadTimeout = time.Millisecond * 10
},
ModifyRouterConfig: func(cfg *nodev1.RouterConfig) {
for i := range cfg.EngineConfig.DatasourceConfigurations {
t := true
if cfg.EngineConfig.DatasourceConfigurations[i].CustomGraphql == nil {
continue
}
cfg.EngineConfig.DatasourceConfigurations[i].CustomGraphql.Subscription.UseSSE = &t
p := common.GraphQLSubscriptionProtocol_GRAPHQL_SUBSCRIPTION_PROTOCOL_SSE
cfg.EngineConfig.DatasourceConfigurations[i].CustomGraphql.Subscription.Protocol = &p
}
},
RouterOptions: []core.Option{
core.WithHeaderRules(headerRules),
},
Subgraphs: testenv.SubgraphsConfig{
Employees: testenv.SubgraphConfig{
Middleware: func(handler http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
require.Equal(t, "Bearer test", r.Header.Get("Authorization"))
require.Equal(t, http.MethodGet, r.Method)
query := r.URL.Query()
require.Equal(t, "subscription{currentTime {unixTime timeStamp}}", query.Get("query"))
require.Equal(t, `{"upgradeHeaders":{"Authorization":["Bearer test"],"User-Agent":["Go-http-client/1.1"]},"initialPayload":{"Custom-Auth":"test"}}`, query.Get("extensions"))
w.Header().Set("Content-Type", "text/event-stream")
w.Header().Set("Cache-Control", "no-cache")
w.Header().Set("Connection", "keep-alive")
w.WriteHeader(http.StatusOK)
flusher, ok := w.(http.Flusher)
if !ok {
http.Error(w, "Streaming unsupported!", http.StatusInternalServerError)
return
}
_, err := fmt.Fprintf(w, "data: %s\n\n", `{"data":{"currentTime":{"unixTime":1,"timeStamp":"2021-09-01T12:00:00Z"}}}`)
require.NoError(t, err)
flusher.Flush()
})
},
},
},
}, func(t *testing.T, xEnv *testenv.Environment) {
type currentTimePayload struct {
Data struct {
CurrentTime struct {
UnixTime float64 `json:"unixTime"`
Timestamp string `json:"timestamp"`
} `json:"currentTime"`
} `json:"data"`
}
conn := xEnv.InitGraphQLWebSocketConnection(http.Header{
"Authorization": []string{"Bearer test"},
}, []byte(`{"Custom-Auth":"test"}`))
err := conn.WriteJSON(&testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"subscription { currentTime { unixTime timeStamp }}"}`),
})
require.NoError(t, err)
var msg testenv.WebSocketMessage
var payload currentTimePayload
// Read a result and store its timestamp, next result should be 1 second later
err = conn.ReadJSON(&msg)
require.NoError(t, err)
require.Equal(t, "1", msg.ID)
require.Equal(t, "next", msg.Type)
err = json.Unmarshal(msg.Payload, &payload)
require.NoError(t, err)
require.Equal(t, float64(1), payload.Data.CurrentTime.UnixTime)
// Sending a complete must stop the subscription
err = conn.WriteJSON(&testenv.WebSocketMessage{
ID: "1",
Type: "complete",
})
require.NoError(t, err)
var complete testenv.WebSocketMessage
err = conn.SetReadDeadline(time.Now().Add(1 * time.Second))
require.NoError(t, err)
err = conn.ReadJSON(&complete)
require.NoError(t, err)
require.Equal(t, "1", complete.ID)
require.Equal(t, "complete", complete.Type)
err = conn.SetReadDeadline(time.Now().Add(1 * time.Second))
require.NoError(t, err)
_, _, err = conn.ReadMessage()
require.Error(t, err)
var netErr net.Error
if errors.As(err, &netErr) {
require.True(t, netErr.Timeout())
} else {
require.Fail(t, "expected net.Error")
}
})
})
t.Run("subscription with upgrade error", func(t *testing.T) {
t.Parallel()
testenv.Run(t, &testenv.Config{
ModifyEngineExecutionConfiguration: func(engineExecutionConfiguration *config.EngineExecutionConfiguration) {
engineExecutionConfiguration.WebSocketReadTimeout = time.Millisecond * 10
},
Subgraphs: testenv.SubgraphsConfig{
Employees: testenv.SubgraphConfig{
Middleware: func(handler http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// This will cause the upgrade to fail
w.WriteHeader(http.StatusTeapot)
})
},
},
},
}, func(t *testing.T, xEnv *testenv.Environment) {
conn := xEnv.InitGraphQLWebSocketConnection(nil, nil)
err := conn.WriteJSON(&testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"subscription { currentTime { unixTime timeStamp }}"}`),
})
require.NoError(t, err)
var msg testenv.WebSocketMessage
// Read a result and store its timestamp, next result should be 1 second later
err = conn.ReadJSON(&msg)
require.NoError(t, err)
require.Equal(t, "1", msg.ID)
require.Equal(t, "error", msg.Type)
require.Equal(t, `[{"message":"Upgrade request failed for Subgraph '0'.","extensions":{"statusCode":418}}]`, string(msg.Payload))
})
})
t.Run("subscription with unexposed upgrade error", func(t *testing.T) {
t.Parallel()
testenv.Run(t, &testenv.Config{
ModifyEngineExecutionConfiguration: func(engineExecutionConfiguration *config.EngineExecutionConfiguration) {
engineExecutionConfiguration.WebSocketReadTimeout = time.Millisecond * 10
},
ModifySubgraphErrorPropagation: func(cfg *config.SubgraphErrorPropagationConfiguration) {
cfg.StatusCodes = false
},
Subgraphs: testenv.SubgraphsConfig{
Employees: testenv.SubgraphConfig{
Middleware: func(handler http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// This will cause the upgrade to fail
w.WriteHeader(http.StatusTeapot)
})
},
},
},
}, func(t *testing.T, xEnv *testenv.Environment) {
conn := xEnv.InitGraphQLWebSocketConnection(nil, nil)
err := conn.WriteJSON(&testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"subscription { currentTime { unixTime timeStamp }}"}`),
})
require.NoError(t, err)
var msg testenv.WebSocketMessage
// Read a result and store its timestamp, next result should be 1 second later
err = conn.ReadJSON(&msg)
require.NoError(t, err)
require.Equal(t, "1", msg.ID)
require.Equal(t, "error", msg.Type)
require.Equal(t, `[{"message":"Upgrade failed"}]`, string(msg.Payload))
})
})
t.Run("subscription error in resolver", func(t *testing.T) {
t.Parallel()
testenv.Run(t, &testenv.Config{
ModifyEngineExecutionConfiguration: func(engineExecutionConfiguration *config.EngineExecutionConfiguration) {
engineExecutionConfiguration.WebSocketReadTimeout = time.Millisecond * 10
},
Subgraphs: testenv.SubgraphsConfig{
Employees: testenv.SubgraphConfig{
Middleware: func(handler http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// This will cause the upgrade to fail
w.WriteHeader(http.StatusTeapot)
})
},
},
},
}, func(t *testing.T, xEnv *testenv.Environment) {
conn := xEnv.InitGraphQLWebSocketConnection(nil, nil)
err := conn.WriteJSON(&testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"subscription { returnsError }"}`),
})
require.NoError(t, err)
var msg testenv.WebSocketMessage
// Read a result and store its timestamp, next result should be 1 second later
err = conn.ReadJSON(&msg)
require.NoError(t, err)
require.Equal(t, "1", msg.ID)
require.Equal(t, "error", msg.Type)
require.Equal(t, `[{"message":"this is an error","path":["returnsError"]}]`, string(msg.Payload))
})
})
t.Run("subscription error in resolver unexposed", func(t *testing.T) {
t.Parallel()
testenv.Run(t, &testenv.Config{
ModifyEngineExecutionConfiguration: func(engineExecutionConfiguration *config.EngineExecutionConfiguration) {
engineExecutionConfiguration.WebSocketReadTimeout = time.Millisecond * 10
},
ModifySubgraphErrorPropagation: func(cfg *config.SubgraphErrorPropagationConfiguration) {
cfg.Enabled = false
},
Subgraphs: testenv.SubgraphsConfig{
Employees: testenv.SubgraphConfig{
Middleware: func(handler http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// This will cause the upgrade to fail
w.WriteHeader(http.StatusTeapot)
})
},
},
},
}, func(t *testing.T, xEnv *testenv.Environment) {
conn := xEnv.InitGraphQLWebSocketConnection(nil, nil)
err := conn.WriteJSON(&testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"subscription { returnsError }"}`),
})
require.NoError(t, err)
var msg testenv.WebSocketMessage
// Read a result and store its timestamp, next result should be 1 second later
err = conn.ReadJSON(&msg)
require.NoError(t, err)
require.Equal(t, "1", msg.ID)
require.Equal(t, "error", msg.Type)
require.Equal(t, `[{"message":"Unable to subscribe"}]`, string(msg.Payload))
})
})
t.Run("subscription blocked", func(t *testing.T) {
t.Parallel()
testenv.Run(t, &testenv.Config{
ModifySecurityConfiguration: func(securityConfiguration *config.SecurityConfiguration) {
securityConfiguration.BlockSubscriptions = true
},
}, func(t *testing.T, xEnv *testenv.Environment) {
conn := xEnv.InitGraphQLWebSocketConnection(nil, nil)
err := conn.WriteJSON(&testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"subscription { currentTime { unixTime timeStamp }}"}`),
})
require.NoError(t, err)
var msg testenv.WebSocketMessage
err = conn.ReadJSON(&msg)
require.NoError(t, err)
require.Equal(t, "1", msg.ID)
require.Equal(t, "error", msg.Type)
require.Equal(t, `[{"message":"operation type 'subscription' is blocked"}]`, string(msg.Payload))
})
})
t.Run("multiple subscriptions one connection", func(t *testing.T) {
testenv.Run(t, &testenv.Config{
ModifyEngineExecutionConfiguration: func(engineExecutionConfiguration *config.EngineExecutionConfiguration) {
engineExecutionConfiguration.WebSocketReadTimeout = time.Millisecond * 10
},
}, func(t *testing.T, xEnv *testenv.Environment) {
client := graphql.NewSubscriptionClient(xEnv.GraphQLSubscriptionURL()).
WithProtocol(graphql.GraphQLWS)
completeCount := &atomic.Int64{}
client.OnSubscriptionComplete(func(sub graphql.Subscription) {
completeCount.Add(1)
})
go func() {
var subscriptionCountEmp struct {
CountEmp int `graphql:"countEmp(max: $max, intervalMilliseconds: $interval)"`
}
var (
firstCountEmpID, countEmpID, countEmp2ID, countHobID string
firstCountEmp, countEmp, countEmp2, countHob int
err error
variables = map[string]interface{}{
"max": 10,
"interval": 200,
}
)
firstCountEmpID, err = client.Subscribe(&subscriptionCountEmp, map[string]interface{}{
"max": 5,
"interval": 100,
}, func(dataValue []byte, errValue error) error {
require.NoError(t, errValue)
data := subscriptionCountEmp
err := jsonutil.UnmarshalGraphQL(dataValue, &data)
require.NoError(t, err)
require.Equal(t, firstCountEmp, data.CountEmp)
firstCountEmp++
return nil
})
require.NoError(t, err)
require.NotEqual(t, "", firstCountEmpID)
countEmpID, err = client.Subscribe(&subscriptionCountEmp, variables, func(dataValue []byte, errValue error) error {
require.NoError(t, errValue)
data := subscriptionCountEmp
err := jsonutil.UnmarshalGraphQL(dataValue, &data)
require.NoError(t, err)
require.Equal(t, countEmp, data.CountEmp)
if countEmp == 5 {
err = client.Unsubscribe(countEmpID)
require.NoError(t, err)
}
countEmp++
return nil
})
require.NoError(t, err)
require.NotEqual(t, "", countEmpID)
var subscriptionCountEmp2 struct {
CountEmp int `graphql:"countEmp2(max: $max, intervalMilliseconds: $interval)"`
}
countEmp2ID, err = client.Subscribe(&subscriptionCountEmp2, variables, func(dataValue []byte, errValue error) error {
require.NoError(t, errValue)
data := subscriptionCountEmp2
err := jsonutil.UnmarshalGraphQL(dataValue, &data)
require.NoError(t, err)
require.Equal(t, countEmp2, data.CountEmp)
if countEmp2 == 5 {
err = client.Unsubscribe(countEmp2ID)
require.NoError(t, err)
}
countEmp2++
return nil
})
require.NoError(t, err)
require.NotEqual(t, "", countEmp2ID)
var subscriptionCountHob struct {
CountHob int `graphql:"countHob(max: $max, intervalMilliseconds: $interval)"`
}
countHobID, err = client.Subscribe(&subscriptionCountHob, variables, func(dataValue []byte, errValue error) error {
require.NoError(t, errValue)
data := subscriptionCountHob
err := jsonutil.UnmarshalGraphQL(dataValue, &data)
require.NoError(t, err)
require.Equal(t, countHob, data.CountHob)
if countHob == 5 {
err = client.Unsubscribe(countHobID)
require.NoError(t, err)
}
countHob++
return nil
})
require.NoError(t, err)
require.NotEqual(t, "", countHobID)
}()
go func() {
require.NoError(t, client.Run())
}()
xEnv.WaitForSubscriptionCount(4, time.Second*5)
xEnv.WaitForSubscriptionCount(0, time.Second*5)
xEnv.WaitForTriggerCount(0, time.Second*5)
// we cannot guarantee that the client will receive the complete message for all subscriptions
// this is because only one subscription is completed by the server
// the other subscriptions are completed by the client
// the client may receive the complete message on time, but we don't own the client implementation
require.GreaterOrEqual(t, completeCount.Load(), int64(1))
})
})
t.Run("error", func(t *testing.T) {
t.Parallel()
testenv.Run(t, &testenv.Config{}, func(t *testing.T, xEnv *testenv.Environment) {
conn := xEnv.InitGraphQLWebSocketConnection(nil, nil)
err := conn.WriteJSON(&testenv.WebSocketMessage{
ID: "1",
Type: "subscribe",
Payload: []byte(`{"query":"subscription { does_not_exist }"}`),
})
require.NoError(t, err)
err = conn.SetReadDeadline(time.Now().Add(5 * time.Second))
require.NoError(t, err)
var msg testenv.WebSocketMessage
err = conn.ReadJSON(&msg)
require.NoError(t, err)
require.Equal(t, "error", msg.Type)
// Payload should be an array of GraphQLError
var errs []testenv.GraphQLError
err = json.Unmarshal(msg.Payload, &errs)
require.NoError(t, err)
require.Len(t, errs, 1)
require.Equal(t, errs[0].Message, `field: does_not_exist not defined on type: Subscription`)
})
})
t.Run("subscription with library graphql-ws", func(t *testing.T) {