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Get script language

The get script language API operation retrieves all supported script languages and their contexts.

Sample request

GET _script_language

Sample response

The GET _script_language request returns the available contexts for each language:

{
  "types_allowed" : [
    "inline",
    "stored"
  ],
  "language_contexts" : [
    {
      "language" : "expression",
      "contexts" : [
        "aggregation_selector",
        "aggs",
        "bucket_aggregation",
        "field",
        "filter",
        "number_sort",
        "score",
        "terms_set"
      ]
    },
    {
      "language" : "mustache",
      "contexts" : [
        "template"
      ]
    },
    {
      "language" : "opensearch_query_expression",
      "contexts" : [
        "aggs",
        "filter"
      ]
    },
    {
      "language" : "painless",
      "contexts" : [
        "aggregation_selector",
        "aggs",
        "aggs_combine",
        "aggs_init",
        "aggs_map",
        "aggs_reduce",
        "analysis",
        "bucket_aggregation",
        "field",
        "filter",
        "ingest",
        "interval",
        "moving-function",
        "number_sort",
        "painless_test",
        "processor_conditional",
        "score",
        "script_heuristic",
        "similarity",
        "similarity_weight",
        "string_sort",
        "template",
        "terms_set",
        "trigger",
        "update"
      ]
    }
  ]
}

Response fields

The request contains the following response fields.

Field Data type Description
types_allowed List of strings The types of scripts that are enabled, determined by the script.allowed_types setting. May contain inline and/or stored.
language_contexts List of objects A list of objects, each of which maps a supported language to its available contexts.
language_contexts.language String The name of the registered scripting language.
language_contexts.contexts List of strings A list of all contexts for the language, determined by the script.allowed_contexts setting.