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README.md
sqlite-async
ES6 Promise-based interface to the sqlite3 module.
The sqlite-async
module exports the Database
class. Each method works the same as the original sqlite3 API
. Instead of callbacks, each method returns a promise. The prepare
method returns a Statement
instance that also wraps all of the original statement methods into methods that return a promise.
Usage
const Database = require('sqlite-async')
Database.open('test.db')
.then(db => {
...
})
.catch(err => {
...
})
The test/sqlite-async-test.js
file provides examples.
API
Database.SQLITE3_VERSION
Static getter that returns the version number of the node-sqlite3
package currently being used by this module.
Database.open(filename, mode)
Static method that instantiates a new Database
object and calls Database#open(filename, mode)
. Returns a promise that is resolved with the Database instance.
Database#open(filename, mode)
Opens the database with the same arguments as the sqlite3 Database
constructor. Returns a promise that is resolved with the Database instance.
Database#close([fn])
Closes the database and returns a promise. If the optional provider function (fn
) is specified, it is called as fn(db)
before the database is closed. This function must return a promise. The database is closed regardless of whether the promise returned by the optional provider function is resolved or rejected. If the returned promise is rejected, then the close method itself will return a rejected promise with the error from the promise returned by the provider function.
Database#run(sql, [param, ...])
Equivalent to the sqlite3 Database#run
method. Returns a promise that is resolved with the this
parameter from the sqlite3 callback function.
Database#get(sql, [param, ...])
Equivalent to the sqlite3 Database#get
method. Returns a promise that is resolved with the row.
Database#all(sql, [param, ...])
Equivalent to the sqlite3 Database#all
method. Returns a promise that is resolved with the rows.
Database#each(sql, [param, ...], callback)
Equivalent to the sqlite3 Database#each
method. The per-row callback function is requied. Returns a promise that is resolved with the Database instance.
Database#exec(sql)
Equivalent to the sqlite3 Database#exec
method. Returns a promise that is resolved with the Database instance.
Database#transaction(fn)
The transaction
method allows a function returning a promise to be wrapped in a transaction. The function is passed the Database
instance as its parameter. Returns a promise that is resolved with the function's promise value.
db.transaction((db) => {
return Promise.all([
db.run('INSERT INTO test VALUES (2, "two")'),
db.run('INSERT INTO test VALUES (2, "three")')
])
})
Database#prepare(sql, [param, ...])
Equivalent to the sqlite3 Database#prepare
method. Returns a promise that is resolved with the Statement instance.
Statement#bind([param, ...])
Equivalent to the sqlite3 Statement#bind
method. Returns a promise that is resolved with the Statement instance.
Statement#reset()
Equivalent to the sqlite3 Statement#reset
method. Returns a promise that is resolved with the Statement instance.
Statement#finalize()
Equivalent to the sqlite3 Statement#finalize
method. Returns a promise that is resolved with no value because the statement can no longer be used.
Statement#run([param, ...])
Equivalent to the sqlite3 Statement#run
method. Returns a promise that is resolved with the this
parameter from the sqlite3 callback function.
Statement#get([param, ...])
Equivalent to the sqlite3 Statement#get
method. Returns a promise that is resolved with the row.
Statement#all([param, ...])
Equivalent to the sqlite3 Statement#all
method. Returns a promise that is resolved with the rows.
Statement#each([param, ...], callback)
Equivalent to the sqlite3 Statement#each
method. The per-row callback function is requied. Returns a promise that is resolved with the Statement instance.
License
MIT License
Copyright (c) 2021 Frank Hellwig
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.