OpenSearch/rest-api-spec/api/get_script.json

{
  "get_script": {
    "documentation": "http://www.elasticsearch.org/guide/en/elasticsearch/reference/master/modules-scripting.html",
    "methods": ["GET"],
    "url": {
      "path": "/_scripts/{lang}/{id}",
      "paths": [ "/_scripts/{lang}/{id}" ],
      "parts": {
        "id": {
          "type" : "string",
          "description" : "Script ID",
          "required" : true
        },
        "lang" : {
          "type" : "string",
          "description" : "Script language",
          "required" : true
        }
      },
      "params" : {
        "version": {
          "type": "number",
            "description": "Explicit version number for concurrency control"
          },
        "version_type": {
          "type": "enum",
          "options": ["internal", "external", "external_gte", "force"],
          "description": "Specific version type"
        }
      }
    },
    "body": null
  }
}