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grpc-ui.go
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grpc-ui.go
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// Copyright (c) 2022 Gobalsky Labs Limited
//
// Use of this software is governed by the Business Source License included
// in the LICENSE file and at https://www.mariadb.com/bsl11.
//
// Change Date: 18 months from the later of the date of the first publicly
// available Distribution of this version of the repository, and 25 June 2022.
//
// On the date above, in accordance with the Business Source License, use
// of this software will be governed by version 3 or later of the GNU General
// Public License.
package api
import (
"context"
"fmt"
"net"
"net/http"
"github.com/elysiumstation/fury/logging"
"github.com/fullstorydev/grpcui/standalone"
"google.golang.org/grpc"
)
type GRPCUIHandler struct {
GRPCUIConfig
handler http.Handler
log *logging.Logger
dialer grpcDialer
}
type grpcDialer interface {
net.Listener
DialGRPC(opts ...grpc.DialOption) (*grpc.ClientConn, error)
}
func NewGRPCUIHandler(log *logging.Logger, dialer grpcDialer, config GRPCUIConfig) *GRPCUIHandler {
log = log.Named(grpcUINamedLogger)
return &GRPCUIHandler{
GRPCUIConfig: config,
log: log,
handler: NewNotStartedHandler("grpc-ui"),
dialer: dialer,
}
}
func (g *GRPCUIHandler) Name() string {
return "grpc-ui"
}
func (g *GRPCUIHandler) Start() error {
defaultCallOptions := []grpc.CallOption{
grpc.MaxCallRecvMsgSize(int(g.MaxPayloadSize)),
}
dialOpts := []grpc.DialOption{
grpc.WithDefaultCallOptions(defaultCallOptions...),
grpc.WithInsecure(),
grpc.WithBlock(),
}
cc, err := g.dialer.DialGRPC(dialOpts...)
if err != nil {
return fmt.Errorf("failed to create client to local grpc server:%w", err)
}
g.log.Info("connected to grpc server", logging.String("target", cc.Target()))
ctx := context.Background()
handler, err := standalone.HandlerViaReflection(ctx, cc, "fury data node")
if err != nil {
return fmt.Errorf("failed to create grpc-ui server:%w", err)
}
g.handler = handler
return nil
}
func (g *GRPCUIHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
g.handler.ServeHTTP(w, r)
}