[go] refactoring

golang/cmd/spacetraders/main.go

@@ -35,8 +35,8 @@ func main() {
 	client := api.NewClient(ctx)
 	defer client.Close()
 	if err := run(
-		db,
 		client,
+		db,
 	); err != nil {
 		fmt.Fprintf(os.Stderr, "%s\n", err)
 		if err := db.Close(); err != nil {
@@ -47,8 +47,8 @@ func main() {
 }
 
 func run(
-	db *database.DB,
 	client *api.Client,
+	db *database.DB,
 ) error {
 	// ----- Get token or register ---------------------------------------------
 	register, err := client.Register("COSMIC", "ADYXAX-GO")

golang/pkg/database/db.go

@@ -0,0 +1,19 @@
+package database
+
+import (
+	"context"
+	"database/sql"
+)
+
+type DB struct {
+	ctx context.Context
+	db  *sql.DB
+}
+
+func (db *DB) Exec(query string, args ...any) (sql.Result, error) {
+	return db.db.ExecContext(db.ctx, query, args...)
+}
+
+func (db *DB) QueryRow(query string, args ...any) *sql.Row {
+	return db.db.QueryRowContext(db.ctx, query, args...)
+}

golang/pkg/database/migrations.go

@@ -9,11 +9,6 @@ import (
 	_ "github.com/mattn/go-sqlite3"
 )
 
-type DB struct {
-	ctx context.Context
-	db  *sql.DB
-}
-
 //go:embed sql/*.sql
 var schemaFiles embed.FS
 

golang/pkg/database/tokens.go

@@ -1,11 +1,12 @@
 package database
 
 func (db *DB) AddToken(token string) error {
-	_, err := db.db.ExecContext(db.ctx, `INSERT INTO tokens(data) VALUES (?);`, token)
+	_, err := db.Exec(`INSERT INTO tokens(data) VALUES (?);`, token)
 	return err
 }
 
-func (db *DB) GetToken() (token string, err error) {
+func (db *DB) GetToken() (string, error) {
-	err = db.db.QueryRowContext(db.ctx, `SELECT data FROM tokens;`).Scan(&token)
+	var token string
+	err := db.QueryRow(`SELECT data FROM tokens;`).Scan(&token)
 	return token, err
 }