elasticsearchHow can I create and configure fields in Elasticsearch?

Creating and configuring fields in Elasticsearch can be done with the PUT mapping API. This API allows you to define the data type for each field, as well as define any custom analyzers or tokenizers to be used.

Example code

PUT my_index
{
  "mappings": {
    "properties": {
      "title": {
        "type": "text"
      },
      "description": {
        "type": "text",
        "analyzer": "english"
      }
    }
  }
}

Output example

{
  "acknowledged": true,
  "shards_acknowledged": true,
  "index": "my_index"
}

In the example code, two fields are created: title and description. The title field is of type text, while the description field is of type text and uses the english analyzer.

Code explanation

1. PUT my_index - specifies the name of the index to create or update.
2. "mappings": { - begins the mappings section of the API.
3. "properties": { - begins the properties section of the mappings.
4. "title": { - begins the definition of the title field.
5. "type": "text" - sets the type of the title field to text.
6. "description": { - begins the definition of the description field.
7. "type": "text", - sets the type of the description field to text.
8. "analyzer": "english" - sets the analyzer for the description field to english.

Helpful links

• Elasticsearch Mapping API Documentation
• Elasticsearch Analyzers Documentation

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