elasticsearch: create index with mappings using javascript

Refining the answer that is in the comment above from Sander Spilleman. The “mappings” property needs to be inside the “body” property. I am also using the Javascript client 1.3.0 and the docs are still not updated with an example.

Adding an example that worked for me with the javascript API provided by elasticsearch on NPM 1.3.0

var body = {
    tweet:{
        properties:{
            tag         : {"type" : "string", "index" : "not_analyzed"},
            type        : {"type" : "string", "index" : "not_analyzed"},
            namespace   : {"type" : "string", "index" : "not_analyzed"},
            tid         : {"type" : "string", "index" : "not_analyzed"}
        }
    }
}

client.indices.putMapping({index:"tweets", type:"tweet", body:body});