laconicd/server/util.go

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package server
import (
"net/http"
"time"
"github.com/gorilla/mux"
"github.com/improbable-eng/grpc-web/go/grpcweb"
rpcclient "github.com/tendermint/tendermint/rpc/jsonrpc/client"
log "github.com/xlab/suplog"
)
func ConnectTmWS(tmRPCAddr, tmEndpoint string) *rpcclient.WSClient {
tmWsClient, err := rpcclient.NewWS(tmRPCAddr, tmEndpoint,
rpcclient.MaxReconnectAttempts(256),
rpcclient.ReadWait(120*time.Second),
rpcclient.WriteWait(120*time.Second),
rpcclient.PingPeriod(50*time.Second),
rpcclient.OnReconnect(func() {
log.WithField("tendermint_rpc", tmRPCAddr+tmEndpoint).
Debugln("EVM RPC reconnects to Tendermint WS")
}),
)
if err != nil {
log.WithError(err).Fatalln("Tendermint WS client could not be created for ", tmRPCAddr+tmEndpoint)
} else if err := tmWsClient.OnStart(); err != nil {
log.WithError(err).Fatalln("Tendermint WS client could not start for ", tmRPCAddr+tmEndpoint)
}
return tmWsClient
}
func MountGRPCWebServices(
router *mux.Router,
grpcWeb *grpcweb.WrappedGrpcServer,
grpcResources []string,
) {
for _, res := range grpcResources {
log.Printf("[GRPC Web] HTTP POST mounted on %s", res)
s := router.Methods("POST").Subrouter()
s.HandleFunc(res, func(resp http.ResponseWriter, req *http.Request) {
if grpcWeb.IsGrpcWebSocketRequest(req) {
grpcWeb.HandleGrpcWebsocketRequest(resp, req)
return
}
if grpcWeb.IsGrpcWebRequest(req) {
grpcWeb.HandleGrpcWebRequest(resp, req)
return
}
})
}
}