level-dump

Dumps all values and/or keys of a level db or a sublevel to the console.

level-dump

Dumps all values and/or keys of a level db or a sublevel to the console.

Intended for debugging purposes in order to just show and/or count db entries.

var dump = require('level-dump');
dump(db);         // dump keys and values (same as dump.entries) 
dump.keys(db);    // dump keys only 
dump.values(db);  // dump values only 
 
dump.allKeys(db);     // dump keys including all sublevels 
dump.allValues(db);   // dump values including all sublevels 
dump.allEntries(db);  // dump entries including all sublevels 

db to be any level-up instance, including a sublevel, in which cases it only dumps value inside the sublevel.

By default the dump gets written via console.log. You can overwrite this however.

This comes in useful for testing for instance:

var assert = require('assert');
var dump = require('level-dump');
 
dump(
    db 
  , function write(data) {
      assert.deepEqual(data, 'what I expected'); 
    }
  , function end(err) {
      assert.notOk(err);
    }
  )

dump(db[, write, end])

dump.{entries,keys,values}(db[, write, end])

  • db the leveldb instance, whose entries to dump
  • write : function called for every dumped value (default: console.log)
  • end: function called when all values have been dumped and/or an error occurred

Note: when write is supplied, end needs to be as well. When only one function is supplied it will be treated as end.

dump.{allEntries,allKeys,allValues}(db[, write, end])

  • same as above except if called on the root level db, it will include keys/values/entries of all sublevels