DefinitelyTyped/types/keyv/keyv-tests.ts

import Keyv = require('keyv');

new Keyv({
    uri: 'redis://user:pass@localhost:6379',
    namespace: 'redis',
});
new Keyv({ uri: 'redis://user:pass@localhost:6379' });
new Keyv({ namespace: 'redis' });
new Keyv({ ttl: 123 });
new Keyv({ adapter: 'redis' });
new Keyv({ adapter: 'mongo' });
new Keyv({ adapter: 'mongodb' });
new Keyv({ adapter: 'sqlite' });
new Keyv({ adapter: 'postgres' });
new Keyv({ adapter: 'postgresql' });
new Keyv({ adapter: 'mysql' });
new Keyv({ adapter: 'foo' }); // $ExpectError
new Keyv<boolean>({ serialize: JSON.stringify });
new Keyv<boolean>({ deserialize: JSON.parse });

new Keyv<boolean>({ store: new Map() });

new Keyv('mongodb://user:pass@localhost:27017/dbname', { namespace: 'mongodb' });
new Keyv('redis://user:pass@localhost:6379');
new Keyv('sqlite://path/to/database.sqlite');
new Keyv('postgresql://user:pass@localhost:5432/dbname');
new Keyv('mysql://user:pass@localhost:3306/dbname');
new Keyv();

(async () => {
    const keyv = new Keyv<string>();

    keyv.on('error', err => console.log('Connection Error', err));

    await keyv.set('foo', 'expires in 1 second', 1000); // $ExpectType true
    await keyv.set('foo', 'never expires'); // $ExpectType true
    await keyv.get('foo'); // $ExpectType string | undefined
    await keyv.delete('foo'); // $ExpectType boolean
    await keyv.clear(); // $ExpectType void
})();