How to implement auto-complete in elasticsearch -


i need implement auto-complete feature in field called "names" in document. here suggest query using that:

{ "autosuggest": { "text": "word", "completion": { "field": "names" } } }

im getting following error running query:

{ "_shards":{ "total":5, "successful":0, "failed":5, "failures":[ { "index":"myindex", "shard":0, "reason":"broadcastshardoperationfailedexception[[names][0] ]; nested: elasticsearchexception[failed execute suggest]; nested: classcastexception[org.elasticsearch.index.mapper.core.stringfieldmapper cannot cast org.elasticsearch.index.mapper.core.completionfieldmapper]; " } .... ] }

what reason error? , should enable auto-complete?

you need define suggester in mapping first , makes sense call out in _suggest api. can refer more on subject here.


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