server: implement scylladb

server/api/api.go

@@ -3,15 +3,23 @@ package api
 import (
 	"net/http"
 
+	"git.dubyatp.xyz/dubyatp/scannerbot/server/db"
 	"github.com/go-chi/chi/v5"
 )
 
 func Start() {
+	db.InitScyllaDB()
+	defer db.CloseScyllaDB()
+
 	r := chi.NewRouter()
 
 	r.Get("/", func(w http.ResponseWriter, r *http.Request) {
 		w.Write([]byte("hello world"))
 	})
 
+	r.Route("/whoami", func(r chi.Router) {
+		r.Get("/", Whoami)
+	})
+
 	http.ListenAndServe(":3000", r)
 }

server/api/user.go

@@ -0,0 +1,30 @@
+package api
+
+import (
+	"log/slog"
+	"net/http"
+
+	"github.com/google/uuid"
+)
+
+func Whoami(w http.ResponseWriter, r *http.Request) {
+	slog.Debug("user: entering Whoami handler")
+	user, ok := r.Context().Value(userKey{}).(*User)
+	if !ok || user == nil {
+		slog.Debug("user: anonymous user")
+		w.Write([]byte("anonymous"))
+		return
+	}
+}
+
+type User struct {
+	ID       uuid.UUID `json:"id"`
+	Name     string    `json:"name"`
+	Password string    `json:"-"`
+}
+
+type userKey struct{}
+
+type UserPayload struct {
+	*User
+}

server/db/scylla.go

@@ -0,0 +1,31 @@
+package db
+
+import (
+	"log/slog"
+	"os"
+
+	"github.com/gocql/gocql"
+)
+
+var Session *gocql.Session
+
+func InitScyllaDB() {
+	cluster := gocql.NewCluster(os.Getenv("SCYLLA_CLUSTER"))
+	cluster.Keyspace = os.Getenv("SCYLLA_KEYSPACE")
+
+	cluster.Consistency = gocql.Quorum
+
+	session, err := cluster.CreateSession()
+	if err != nil {
+		slog.Error("Failed to connect to ScyllaDB", "error", err)
+		os.Exit(1)
+	}
+	Session = session
+	slog.Info("Connected to ScyllaDB")
+}
+
+func CloseScyllaDB() {
+	if Session != nil {
+		Session.Close()
+	}
+}

server/go.mod

@@ -2,4 +2,12 @@ module git.dubyatp.xyz/dubyatp/scannerbot/server
 
 go 1.26.3
 
-require github.com/go-chi/chi/v5 v5.2.5 // indirect
+require (
+	github.com/go-chi/chi/v5 v5.2.5 // indirect
+	github.com/gocql/gocql v1.7.0 // indirect
+	github.com/golang/snappy v0.0.3 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed // indirect
+	github.com/joho/godotenv v1.5.1 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+)

server/go.sum

@@ -1,2 +1,23 @@
+github.com/bitly/go-hostpool v0.0.0-20171023180738-a3a6125de932/go.mod h1:NOuUCSz6Q9T7+igc/hlvDOUdtWKryOrtFyIVABv/p7k=
+github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869/go.mod h1:Ekp36dRnpXw/yCqJaO+ZrUyxD+3VXMFFr56k5XYrpB4=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/go-chi/chi/v5 v5.2.5 h1:Eg4myHZBjyvJmAFjFvWgrqDTXFyOzjj7YIm3L3mu6Ug=
 github.com/go-chi/chi/v5 v5.2.5/go.mod h1:X7Gx4mteadT3eDOMTsXzmI4/rwUpOwBHLpAfupzFJP0=
+github.com/gocql/gocql v1.7.0 h1:O+7U7/1gSN7QTEAaMEsJc1Oq2QHXvCWoF3DFK9HDHus=
+github.com/gocql/gocql v1.7.0/go.mod h1:vnlvXyFZeLBF0Wy+RS8hrOdbn0UWsWtdg07XJnFxZ+4=
+github.com/golang/snappy v0.0.3 h1:fHPg5GQYlCeLIPB9BZqMVR5nR9A+IM5zcgeTdjMYmLA=
+github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed h1:5upAirOpQc1Q53c0bnx2ufif5kANL7bfZWcc6VJWJd8=
+github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed/go.mod h1:tMWxXQ9wFIaZeTI9F+hmhFiGpFmhOHzyShyFUhRm0H4=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
+gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=

server/main.go

@@ -2,12 +2,38 @@ package main
 
 import (
 	"log/slog"
+	"os"
 
 	"git.dubyatp.xyz/dubyatp/scannerbot/server/api"
+	"github.com/joho/godotenv"
 )
 
+var REQUIRED_ENVS = [...]string{
+	"SCYLLA_CLUSTER", "SCYLLA_KEYSPACE",
+}
+
+func checkEnvVars(keys []string) (bool, []string) {
+	var missing []string
+	for _, key := range keys {
+		if _, ok := os.LookupEnv(key); !ok {
+			missing = append(missing, key)
+		}
+	}
+	return len(missing) == 0, missing
+}
+
 func main() {
-	//println("hello world")
+
+	err := godotenv.Load()
+	if err != nil {
+		slog.Debug("No .env file loaded, will try OS environment variables")
+	}
+
+	exists, missingVars := checkEnvVars(REQUIRED_ENVS[:])
+	if !exists {
+		slog.Error("Missing environment variables", "missing", missingVars)
+		os.Exit(1)
+	}
 
 	slog.Info("Starting the API server...")
 	api.Start()