is it possible to get a list of keys matching a pattern?

something like

db.keys('foo*', function(err,  keys) { 
  if (err) return;
  db.batch( keys.map(function(key) {  return {type: 'del', key: key }; } ), done );
});

or maybe using a regexp

db.match(/foo.*/, function(err,  keys) { 
  if (err) return;
  db.batch( keys.map(function(key) {  return {type: 'del', key: key }; } ), done );
});

kind of hoped node-level-multiply to handle that for second, but I am not sure it’s possible.

Thanks

[chesles]

There’s a createKeyStream method, which you should be able to use the standard lt, lte, gt, gte range operators with:

var keys = db.createKeyStream({gte: 'foo!', lte: 'foo~'})
var batch = []
keys.on('data', function(key) {
  batch.push({ type: "del", key: key })
})
keys.on('end', function() {
  db.batch(batch)
})

[hit9]

@rvagg Thanks.