rewire main.go into a cli app

Author: VishakhaSainani-Josh

backend/cmd/main.go

@@ -14,28 +14,84 @@ import (
 	"github.com/joshsoftware/code-curiosity-2025/internal/app"
 	"github.com/joshsoftware/code-curiosity-2025/internal/app/cronJob"
 	"github.com/joshsoftware/code-curiosity-2025/internal/config"
+	"github.com/joshsoftware/code-curiosity-2025/internal/db"
+	"github.com/rs/cors"
+	"github.com/urfave/cli"
 )
 
 func main() {
-	ctx := context.Background()
-
 	cfg, err := config.LoadAppConfig()
 	if err != nil {
 		slog.Error("error loading app config", "error", err)
 		return
 	}
 
+	cliApp := cli.NewApp()
+	cliApp.Name = cfg.AppName
+	cliApp.Version = "1.0.0"
+	cliApp.Commands = []cli.Command{
+		{
+			Name:  "start",
+			Usage: "Start HTTP server",
+			Action: func(c *cli.Context) error {
+				return startApp(cfg)
+			},
+		},
+		{
+			Name:  "migrate",
+			Usage: "Database migrations",
+			Subcommands: []cli.Command{
+				{
+					Name:  "up",
+					Usage: "Apply migrations",
+					Action: func(c *cli.Context) error {
+						m, _ := db.InitMainDBMigrations(cfg)
+						m.MigrationsUp(c.Args().First())
+						return nil
+					},
+				},
+				{
+					Name:  "down",
+					Usage: "Rollback migrations",
+					Action: func(c *cli.Context) error {
+						m, _ := db.InitMainDBMigrations(cfg)
+						m.MigrationsDown(c.Args().First())
+						return nil
+					},
+				},
+				{
+					Name:  "create",
+					Usage: "Create a new migration file",
+					Action: func(c *cli.Context) error {
+						m, _ := db.InitMainDBMigrations(cfg)
+						return m.CreateMigrationFile(c.Args().First())
+					},
+				},
+			},
+		},
+	}
+
+	if err := cliApp.Run(os.Args); err != nil {
+		panic(err)
+	}
+}
+
+func startApp(cfg config.AppConfig) error {
+	ctx := context.Background()
+
+	slog.Info("Starting CodeCuriosity Application...")
+
 	db, err := config.InitDataStore(cfg)
 	if err != nil {
 		slog.Error("error initializing database", "error", err)
-		return
+		return err
 	}
 	defer db.Close()
 
 	bigqueryInstance, err := config.BigqueryInit(ctx, cfg)
 	if err != nil {
 		slog.Error("error initializing bigquery", "error", err)
-		return
+		return err
 	}
 
 	httpClient := &http.Client{}
@@ -47,11 +103,20 @@ func main() {
 	newCronSchedular := cronJob.NewCronSchedular()
 	newCronSchedular.InitCronJobs(dependencies.ContributionService, dependencies.UserService)
 
+	c := cors.New(cors.Options{
+		AllowedOrigins:   []string{"*"},
+		AllowCredentials: true,
+		AllowedMethods:   []string{http.MethodGet, http.MethodPost, http.MethodPut, http.MethodPatch, http.MethodDelete, http.MethodOptions},
+		AllowedHeaders:   []string{"*"},
+	})
+
 	server := http.Server{
 		Addr:    fmt.Sprintf(":%s", cfg.HTTPServer.Port),
 		Handler: router,
 	}
 
+	server.Handler = c.Handler(server.Handler)
+
 	serverRunning := make(chan os.Signal, 1)
 
 	signal.Notify(
@@ -83,4 +148,5 @@ func main() {
 	}
 
 	slog.Info("server shutdown successfully")
-}
+	return nil
+}

backend/go.mod

@@ -10,17 +10,24 @@ require (
 	github.com/jmoiron/sqlx v1.4.0
 	github.com/lib/pq v1.10.9
 	github.com/robfig/cron/v3 v3.0.1
+	golang.org/x/crypto v0.37.0
 	golang.org/x/oauth2 v0.29.0
 	google.golang.org/api v0.231.0
 )
 
+require (
+	github.com/cpuguy83/go-md2man/v2 v2.0.7 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/urfave/cli v1.22.17 // indirect
+)
+
 require (
 	cloud.google.com/go v0.121.0 // indirect
 	cloud.google.com/go/auth v0.16.1 // indirect
 	cloud.google.com/go/auth/oauth2adapt v0.2.8 // indirect
 	cloud.google.com/go/compute/metadata v0.6.0 // indirect
 	cloud.google.com/go/iam v1.5.2 // indirect
-	github.com/BurntSushi/toml v1.2.1 // indirect
+	github.com/BurntSushi/toml v1.5.0 // indirect
 	github.com/apache/arrow/go/v15 v15.0.2 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/go-logr/logr v1.4.2 // indirect
@@ -37,6 +44,7 @@ require (
 	github.com/klauspost/compress v1.16.7 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.5 // indirect
 	github.com/pierrec/lz4/v4 v4.1.18 // indirect
+	github.com/rs/cors v1.11.1
 	github.com/zeebo/xxh3 v1.0.2 // indirect
 	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.60.0 // indirect
@@ -45,7 +53,6 @@ require (
 	go.opentelemetry.io/otel/metric v1.35.0 // indirect
 	go.opentelemetry.io/otel/trace v1.35.0 // indirect
 	go.uber.org/atomic v1.11.0 // indirect
-	golang.org/x/crypto v0.37.0 // indirect
 	golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 // indirect
 	golang.org/x/mod v0.23.0 // indirect
 	golang.org/x/net v0.39.0 // indirect

backend/go.sum

@@ -26,6 +26,8 @@ github.com/Azure/go-ansiterm v0.0.0-20230124172434-306776ec8161 h1:L/gRVlceqvL25
 github.com/Azure/go-ansiterm v0.0.0-20230124172434-306776ec8161/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
 github.com/BurntSushi/toml v1.2.1 h1:9F2/+DoOYIOksmaJFPw1tGFy1eDnIJXg+UHjuD8lTak=
 github.com/BurntSushi/toml v1.2.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
+github.com/BurntSushi/toml v1.5.0 h1:W5quZX/G/csjUnuI8SUYlsHs9M38FC7znL0lIO+DvMg=
+github.com/BurntSushi/toml v1.5.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.27.0 h1:ErKg/3iS1AKcTkf3yixlZ54f9U1rljCkQyEXWUnIUxc=
 github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.27.0/go.mod h1:yAZHSGnqScoU556rBOVkwLze6WP5N+U11RHuWaGVxwY=
 github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metric v0.51.0 h1:fYE9p3esPxA/C0rQ0AHhP0drtPXDRhaWiwg1DPqO7IU=
@@ -40,6 +42,9 @@ github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UF
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cncf/xds/go v0.0.0-20250121191232-2f005788dc42 h1:Om6kYQYDUk5wWbT0t0q6pvyM49i9XZAv9dDrkDA7gjk=
 github.com/cncf/xds/go v0.0.0-20250121191232-2f005788dc42/go.mod h1:W+zGtBO5Y1IgJhy4+A9GOqVhqLpfZi+vwmdNXUehLA8=
+github.com/cpuguy83/go-md2man/v2 v2.0.7 h1:zbFlGlXEAKlwXpmvle3d8Oe3YnkKIK4xSRTd3sHPnBo=
+github.com/cpuguy83/go-md2man/v2 v2.0.7/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dhui/dktest v0.4.5 h1:uUfYBIVREmj/Rw6MvgmqNAYzTiKOHJak+enB5Di73MM=
@@ -137,10 +142,23 @@ github.com/robfig/cron/v3 v3.0.1 h1:WdRxkvbJztn8LMz/QEvLN5sBU+xKpSqwwUO1Pjr4qDs=
 github.com/robfig/cron/v3 v3.0.1/go.mod h1:eQICP3HwyT7UooqI/z+Ov+PtYAWygg1TEWWzGIFLtro=
 github.com/rogpeppe/go-internal v1.13.1 h1:KvO1DLK/DRN07sQ1LQKScxyZJuNnedQ5/wKSR38lUII=
 github.com/rogpeppe/go-internal v1.13.1/go.mod h1:uMEvuHeurkdAXX61udpOXGD/AzZDWNMNyH2VO9fmH0o=
+github.com/rs/cors v1.11.1 h1:eU3gRzXLRK57F5rKMGMZURNdIG4EoAmX8k94r9wXWHA=
+github.com/rs/cors v1.11.1/go.mod h1:XyqrcTp5zjWr1wsJ8PIRZssZ8b/WMcMf71DJnit4EMU=
+github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/spiffe/go-spiffe/v2 v2.5.0 h1:N2I01KCUkv1FAjZXJMwh95KK1ZIQLYbPfhaxw8WS0hE=
 github.com/spiffe/go-spiffe/v2 v2.5.0/go.mod h1:P+NxobPc6wXhVtINNtFjNWGBTreew1GBUCwT2wPmb7g=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
+github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
+github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/urfave/cli v1.22.17 h1:SYzXoiPfQjHBbkYxbew5prZHS1TOLT3ierW8SYLqtVQ=
+github.com/urfave/cli v1.22.17/go.mod h1:b0ht0aqgH/6pBYzzxURyrM4xXNgsoT/n2ZzwQiEhNVo=
 github.com/zeebo/assert v1.3.0 h1:g7C04CbJuIDKNPFHmsk4hwZDO5O+kntRxzaUoNXj+IQ=
 github.com/zeebo/assert v1.3.0/go.mod h1:Pq9JiuJQpG8JLJdtkwrJESF0Foym2/D9XMU5ciN/wJ0=
 github.com/zeebo/errs v1.4.0 h1:XNdoD/RRMKP7HD0UhJnIzUy74ISdGGxURlYG8HSWSfM=
@@ -207,6 +225,8 @@ google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 olympos.io/encoding/edn v0.0.0-20201019073823-d3554ca0b0a3 h1:slmdOY3vp8a7KQbHkL+FLbvbkgMqmXojpFUO/jENuqQ=

backend/internal/config/app.go

@@ -30,6 +30,7 @@ type BigqueryProject struct {
 }
 
 type AppConfig struct {
+	AppName                   string          `yaml:"app_name"`
 	IsProduction              bool            `yaml:"is_production"`
 	HTTPServer                HTTPServer      `yaml:"http_server"`
 	Database                  Database        `yaml:"database"`

backend/internal/db/migrate.go

@@ -1,4 +1,4 @@
-package main
+package db
 
 import (
 	"errors"