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fix: add WAL mode and busy timeout for SQLite concurrency
Enables concurrent write operations in SQLite by adding journal_mode(WAL)
and busy_timeout(5000) pragmas to the connection string. This prevents
"readonly database" errors during concurrent API operations.
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internal/config/config.go
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internal/config/config.go
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func (c *Config) DSN() string {
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if c.Driver == "sqlite" || c.Driver == "sqlite3" {
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// For SQLite, "Database" field is the file path
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return c.Database
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// Add connection parameters for proper write access:
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// - journal_mode(WAL) enables Write-Ahead Logging for better concurrency
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// - busy_timeout(5000) waits up to 5 seconds if database is locked
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return c.Database + "?_pragma=journal_mode(WAL)&_pragma=busy_timeout(5000)"
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}
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// MySQL: username:password@tcp(host)/dbname?parseTime=true
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dsn := fmt.Sprintf("%s:%s@tcp(%s)/%s?parseTime=true", c.Username, c.Password, c.Host, c.Database)