node.js - Elasticsearch english language analyzer with nodejs -

first time trying implement elastic search using aws hosted service nodejs. referred official docs , came this:

//1. create index client.indices.create({ index: 'products' });  //2. mapping client.indices.putmapping({         index: 'products',         type: 'products',         body: {             properties: {                 'product_name': {                     'type': 'string',                     "analyzer": "english"                 },                 'product_description': {                     'type': 'string',                     "analyzer": "english"                 }             }         }     });  //3. import documents.. product_name: testing   //4. search  client.search({         index: 'products',         type: 'products',         q: keywords,         analyzer: 'english',         size: 10     }); 

now, if search 'testing' or 'token testing', returns 1 result. if test passing 'test' or 'tist' keyword, seems analyzer isn't picking , no results.

updated: added analyzer: 'english' according @val answer, still no results 'test' or 'tist'.

that's because when using q parameter, query_string query made , default analyzer of input string standard analyzer.

you have 2 choices here:

a. include field name in query string:

client.search({     index: 'products',     type: 'products',     q: 'product_name:' + keywords,    <--- modify     size: 10 }); 

b. specify english query-time analyzer produce same tokens has been indexed:

client.search({     index: 'products',     type: 'products',     q: keywords,     analyzer: 'english',              <--- or add     size: 10 });