Converting redis INFO command response string to JSON object in nodejs

Question

Converting redis INFO command response string to JSON object in nodejs

The redis INFO commad returns the string like "redis_version:2.2.14\r\nredis_git_sha1:00000000\r\nredis_git_dirty:0\r\narch_bits:32"

How can I convert the string to get a JSON object something like

{ 
     "redis_version":"x",
     "key2":"value"
 }

Thanks in advance

javascript
node.js
redis

Answer 1

I don't know why would you want to do that, but here's a simple example:

function parseInfo( info ) {
    var lines = info.split( "\r\n" );
    var obj = { };
    for ( var i = 0, l = info.length; i < l; i++ ) {
        var line = lines[ i ];
        if ( line && line.split ) {
            line = line.split( ":" );
            if ( line.length > 1 ) {
                var key = line.shift( );
                obj[ key ] = line.join( ":" );
            }
        }
    }
    return obj;
}

Answer 2

You can use node-redis-info:

npm install redis-info

Usage:

> var parser = require('redis-info');
undefined
> var info = parser.parse(redis_info_str);
undefined
> info.fields.redis_version
2.6.1
> info.startWith('pubsub')
[ [ 'pubsub_channels', '2' ],
  [ 'pubsub_patterns', '0' ] ]
> info.contains('memory')
[ [ 'used_memory', '15080416' ],
  [ 'used_memory_human', '14.38M' ],
  [ 'used_memory_rss', '21258240' ],
  [ 'used_memory_peak', '18985904' ],
  [ 'used_memory_peak_human', '18.11M' ] ]