3
0
corteza/pkg/api/server.go
2019-05-29 22:42:42 +02:00

140 lines
2.8 KiB
Go

package api
import (
"context"
"net"
"net/http"
"time"
"github.com/go-chi/chi"
"github.com/spf13/cobra"
"github.com/titpetric/factory/resputil"
"go.uber.org/zap"
"github.com/cortezaproject/corteza-server/internal/auth"
"github.com/cortezaproject/corteza-server/internal/version"
"github.com/cortezaproject/corteza-server/pkg/cli/flags"
)
type (
Server struct {
name string
log *zap.Logger
httpOpt *flags.HTTPOpt
monitorOpt *flags.MonitorOpt
endpoints []func(r chi.Router)
}
)
func NewServer(log *zap.Logger) *Server {
return &Server{
endpoints: make([]func(r chi.Router), 0),
log: log.Named("http"),
}
}
func (s *Server) Command(ctx context.Context, cmdName, prefix string, preRun func(context.Context) error) (cmd *cobra.Command) {
cmd = &cobra.Command{
Use: cmdName,
Short: "Start HTTP Server with REST API",
// Connect all the wires, prepare services, run watchers, bind endpoints
PreRunE: func(cmd *cobra.Command, args []string) error {
if s.monitorOpt.Interval > 0 {
go NewMonitor(int(s.monitorOpt.Interval / time.Second))
}
return preRun(ctx)
},
// Run the server
Run: func(cmd *cobra.Command, args []string) {
s.Serve(ctx)
},
}
s.BindApiServerFlags(cmd, prefix)
return
}
func (s *Server) BindApiServerFlags(cmd *cobra.Command, prefix string) {
s.httpOpt = flags.HTTP(cmd, prefix)
s.monitorOpt = flags.Monitor(cmd, prefix)
}
func (s *Server) MountRoutes(mm ...func(chi.Router)) {
s.endpoints = append(s.endpoints, mm...)
}
func (s Server) Serve(ctx context.Context) {
s.log.Info("Starting HTTP server with REST API", zap.String("address", s.httpOpt.Addr))
// configure resputil options
resputil.SetConfig(resputil.Options{
Trace: s.httpOpt.Tracing,
Logger: func(err error) {
// @todo: error logging
},
})
listener, err := net.Listen("tcp", s.httpOpt.Addr)
if err != nil {
s.log.Error("Can not start server", zap.Error(err))
return
}
router := chi.NewRouter()
router.Use(Base()...)
if s.httpOpt.Logging {
router.Use(Logging(s.log)...)
}
if s.httpOpt.EnableMetrics {
router.Use(Middleware(s.httpOpt.MetricsServiceLabel))
}
router.Group(func(r chi.Router) {
r.Use(
auth.DefaultJwtHandler.Verifier(),
auth.DefaultJwtHandler.Authenticator(),
)
for _, mountRoutes := range s.endpoints {
mountRoutes(r)
}
})
if s.httpOpt.EnableMetrics {
Mount(router, s.httpOpt.MetricsUsername, s.httpOpt.MetricsPassword)
}
if s.httpOpt.EnableDebugRoute {
Debug(router)
}
if s.httpOpt.EnableVersionRoute {
router.Get("/version", version.HttpHandler)
}
go func() {
err = http.Serve(listener, router)
}()
<-ctx.Done()
if err == nil {
err = ctx.Err()
if err == context.Canceled {
err = nil
}
}
s.log.Info("HTTP server stopped", zap.Error(err))
return
}