Files
scroll/bridge-history-api/cmd/backend_server/app/app.go

88 lines
1.9 KiB
Go

package app
import (
"fmt"
"os"
"os/signal"
"github.com/ethereum/go-ethereum/log"
"github.com/gin-gonic/gin"
"github.com/prometheus/client_golang/prometheus"
"github.com/urfave/cli/v2"
"bridge-history-api/config"
"bridge-history-api/internal/controller"
"bridge-history-api/internal/route"
"bridge-history-api/observability"
"bridge-history-api/utils"
)
var (
app *cli.App
)
func init() {
app = cli.NewApp()
app.Action = action
app.Name = "Scroll Bridge History Web Service"
app.Usage = "The Scroll Bridge History Web Service"
app.Flags = append(app.Flags, utils.CommonFlags...)
app.Commands = []*cli.Command{}
app.Before = func(ctx *cli.Context) error {
return utils.LogSetup(ctx)
}
}
func action(ctx *cli.Context) error {
// Load config file.
cfgFile := ctx.String(utils.ConfigFileFlag.Name)
cfg, err := config.NewConfig(cfgFile)
if err != nil {
log.Crit("failed to load config file", "config file", cfgFile, "error", err)
}
db, err := utils.InitDB(cfg.DB)
if err != nil {
log.Crit("failed to init db", "err", err)
}
defer func() {
if deferErr := utils.CloseDB(db); deferErr != nil {
log.Error("failed to close db", "err", err)
}
}()
// init Prover Stats API
port := cfg.Server.HostPort
router := gin.Default()
controller.InitController(db)
registry := prometheus.DefaultRegisterer
route.Route(router, cfg, registry)
go func() {
if runServerErr := router.Run(fmt.Sprintf(":%s", port)); runServerErr != nil {
log.Crit("run http server failure", "error", runServerErr)
}
}()
observability.Server(ctx, db)
// Catch CTRL-C to ensure a graceful shutdown.
interrupt := make(chan os.Signal, 1)
signal.Notify(interrupt, os.Interrupt)
// Wait until the interrupt signal is received from an OS signal.
<-interrupt
return nil
}
// Run event watcher cmd instance.
func Run() {
if err := app.Run(os.Args); err != nil {
_, _ = fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}