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@caido/quickjs-types / extra/sqlite

extra/sqlite ​

Classes ​

Database ​

A SQLite database.

The implementation uses a connection pool and is fully asynchronous. Each connection will be spawned in a worker thread.

Example ​

ts
const db = await open({ filename: "path/to/database.sqlite" });
await db.exec("CREATE TABLE test (id INTEGER PRIMARY KEY, name TEXT);");
await db.exec("INSERT INTO test (name) VALUES ('foo');");

Constructors ​

Constructor ​

new Database(): Database

Returns ​

Database

Methods ​

exec() ​

exec(sql: string): Promise<void>

This method allows one or more SQL statements to be executed without returning any results.

Parameters ​
ParameterType
sqlstring
Returns ​

Promise<void>

prepare() ​

prepare(sql: string): Promise<Statement>

Compiles a SQL statement into a prepared statement.

Parameters ​
ParameterType
sqlstring
Returns ​

Promise<Statement>

Statement ​

This class represents a single prepared statement. This class cannot be instantiated via its constructor. Instead, instances are created via the database.prepare() method.

Constructors ​

Constructor ​

new Statement(): Statement

Returns ​

Statement

Methods ​

all() ​

all<T>(...params: Parameter[]): Promise<T[]>

This method executes a prepared statement and returns all results as an array of objects. If the prepared statement does not return any results, this method returns an empty array. The prepared statement parameters are bound using the values in params.

Type Parameters ​
Type ParameterDefault type
T extends objectobject
Parameters ​
ParameterTypeDescription
...paramsParameter[]The values to bind to the prepared statement. Named parameters are not supported.
Returns ​

Promise<T[]>

get() ​

get<T>(...params: Parameter[]): Promise<T | undefined>

This method executes a prepared statement and returns the first result as an object. If the prepared statement does not return any results, this method returns undefined. The prepared statement parameters are bound using the values in params.

Type Parameters ​
Type ParameterDefault type
T extends objectobject
Parameters ​
ParameterTypeDescription
...paramsParameter[]The values to bind to the prepared statement. Named parameters are not supported.
Returns ​

Promise<T | undefined>

run() ​

run(...params: Parameter[]): Promise<Result>

This method executes a prepared statement and returns an object summarizing the resulting changes. The prepared statement parameters are bound using the values in params.

Parameters ​
ParameterTypeDescription
...paramsParameter[]The values to bind to the prepared statement. Named parameters are not supported.
Returns ​

Promise<Result>

Type Aliases ​

OpenOptions ​

OpenOptions = object

Properties ​

busyTimeout? ​

optional busyTimeout: number

Time (in milliseconds) to wait for the database to be unlocked before throwing an error.

Default ​
ts
5000
filename? ​

optional filename: string

The filename of the database. If the file does not exist, a new one will be created.

foreignKeys? ​

optional foreignKeys: boolean

Enable foreign key constraints.

idleTimeout? ​

optional idleTimeout: number

Maximum amount of time (in seconds) that a connection is allowed to be idle before it is closed.

Default ​
ts
infinity
in_memory? ​

optional in_memory: boolean

If true, the database will be opened in-memory.

Default ​
ts
false
maxConnections? ​

optional maxConnections: number

Maximum number of connections to the database.

Default ​
ts
5
maxLifetime? ​

optional maxLifetime: number

Maximum amount of time (in seconds) that a connection is allowed to exist before it is closed. Set to null to disable.

Default ​
ts
3600
minConnections? ​

optional minConnections: number

Minimum number of connections to the database.

Default ​
ts
0
pageSize? ​

optional pageSize: number

Set the SQlite page size.

Default ​
ts
4096
wal? ​

optional wal: boolean

If true, the database will use the WAL mode.

Default ​
ts
true

Parameter ​

Parameter = null | number | bigint | string | Uint8Array

Result ​

Result = object

Properties ​

changes ​

changes: number

lastInsertRowid ​

lastInsertRowid: number

Functions ​

open() ​

open(options: OpenOptions): Promise<Database>

Open a SQLite database.

Parameters ​

ParameterTypeDescription
optionsOpenOptionsThe options to open the database.

Returns ​

Promise<Database>