ElasticSearch Index API && Mapping

ElasticSearch NEST Client Operation index

var indexname= "Twitter";

var deleteindexresponse = client. Deleteindex (IndexName);
var createindexresponse = client. CreateIndex (IndexName);
var getindexresponse = client. GetIndex (IndexName);
var indexexistsresponse = client. Indexexists (IndexName);
var openindexresponse=client. Openindex (IndexName);
var closeindexresponse=client. Closeindex (IndexName);

1. CREATE index

PUT twitter{}

2. Delete Index

Delete/twitter

3. Get index

Get/twitter

4. Check if index is present

HEAD Twitter

5. Turn off index

/Twitter/Twitter/_open

PUT Mapping

1. Create index and add mapping to the field

PUT Twitter {  "mappings": {"tweet": {"Properties": {"        message": {          "type": "Text"        }      }    }  }}

2. Add the document type to the existing index and specify the mapping

PUT twitter/_mapping/user {"  properties": {"    name": {      "type": "Text"}}  }

3. Add a new field to the mapping that already exists mapping

PUT twitter/_mapping/tweet {"  properties": {    "user_name": {      "type": "Text"}}  }

Note: In general, fields that already exist mapping are not able to be modified.

Get Mapping API

Get mapping information for the entire document

Get/twitter/_mapping/tweet

Get Field Mapping API

Gets the mapping information for the specified field

GET Publications/_mapping/article/field/title

ElasticSearch Index API && Mapping