server: implement scylladb

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()