84 lines
2.3 KiB
Go
84 lines
2.3 KiB
Go
package server
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import (
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"net"
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"net/http"
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"time"
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"github.com/gorilla/mux"
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"github.com/rs/cors"
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"github.com/cosmos/cosmos-sdk/client"
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"github.com/cosmos/cosmos-sdk/server"
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"github.com/cosmos/cosmos-sdk/server/types"
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ethrpc "github.com/ethereum/go-ethereum/rpc"
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"github.com/tharsis/ethermint/ethereum/rpc"
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"github.com/tharsis/ethermint/server/config"
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)
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// StartJSONRPC starts the JSON-RPC server
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func StartJSONRPC(ctx *server.Context, clientCtx client.Context, tmRPCAddr, tmEndpoint string, config config.Config) (*http.Server, chan struct{}, error) {
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tmWsClient := ConnectTmWS(tmRPCAddr, tmEndpoint, ctx.Logger)
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rpcServer := ethrpc.NewServer()
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rpcAPIArr := config.JSONRPC.API
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apis := rpc.GetRPCAPIs(ctx, clientCtx, tmWsClient, rpcAPIArr)
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for _, api := range apis {
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if err := rpcServer.RegisterName(api.Namespace, api.Service); err != nil {
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ctx.Logger.Error(
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"failed to register service in JSON RPC namespace",
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"namespace", api.Namespace,
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"service", api.Service,
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)
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return nil, nil, err
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}
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}
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r := mux.NewRouter()
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r.HandleFunc("/", rpcServer.ServeHTTP).Methods("POST")
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handlerWithCors := cors.Default()
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if config.API.EnableUnsafeCORS {
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handlerWithCors = cors.AllowAll()
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}
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httpSrv := &http.Server{
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Addr: config.JSONRPC.Address,
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Handler: handlerWithCors.Handler(r),
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}
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httpSrvDone := make(chan struct{}, 1)
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errCh := make(chan error)
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go func() {
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ctx.Logger.Info("Starting JSON-RPC server", "address", config.JSONRPC.Address)
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if err := httpSrv.ListenAndServe(); err != nil {
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if err == http.ErrServerClosed {
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close(httpSrvDone)
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return
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}
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ctx.Logger.Error("failed to start JSON-RPC server", "error", err.Error())
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errCh <- err
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}
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}()
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select {
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case err := <-errCh:
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ctx.Logger.Error("failed to boot JSON-RPC server", "error", err.Error())
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return nil, nil, err
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case <-time.After(types.ServerStartTime): // assume JSON RPC server started successfully
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}
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ctx.Logger.Info("Starting JSON WebSocket server", "address", config.JSONRPC.WsAddress)
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_, port, _ := net.SplitHostPort(config.JSONRPC.Address)
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// allocate separate WS connection to Tendermint
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tmWsClient = ConnectTmWS(tmRPCAddr, tmEndpoint, ctx.Logger)
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wsSrv := rpc.NewWebsocketsServer(ctx.Logger, tmWsClient, "localhost:"+port, config.JSONRPC.WsAddress)
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wsSrv.Start()
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return httpSrv, httpSrvDone, nil
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}
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