OpenSearch/rest-api-spec
Jason Tedor 04a9845a49
Adjust defaults for tiered data roles (#64015)
This commit adjusts the defaults for the tiered data roles so that they
are enabled by default, or if the node has the legacy data role. This
ensures that the default experience is that the tiered data roles are
enabled.

To fully specifiy the behavior for the tiered data roles then:
 - starting a new node with the defaults: enabled
 - starting a new node with node.roles configured: enabled if and only
   if the tiered data roles are explicitly configured, independently
   of the node having the data role
 - starting a new node with node.data enabled: enabled unless the
   tiered data roles are explicitly disabled
 - starting a new node with node.data disabled: disabled unless the
   tiered data roles are explicitly enabled
2020-10-27 12:48:31 -04:00
..
src Adjust defaults for tiered data roles (#64015) 2020-10-27 12:48:31 -04:00
.gitignore Initial commit (blank repository) 2013-05-23 17:56:22 +02:00
README.markdown [DOCS] Note doc links should be live in REST API JSON specs (#53871) 2020-03-23 07:42:03 -04:00
build.gradle Add support for missing value fetchers. (#63585) 2020-10-12 17:34:21 -07:00
keywords.json Update rest-api-spec keyword list 2020-06-25 09:55:13 +01:00

README.markdown

Elasticsearch REST API JSON specification

This repository contains a collection of JSON files which describe the Elasticsearch HTTP API.

Their purpose is to formalize and standardize the API, to facilitate development of libraries and integrations.

Example for the "Create Index" API:

{
  "indices.create": {
    "documentation":{
      "url":"https://www.elastic.co/guide/en/elasticsearch/reference/master/indices-create-index.html"
    },
    "stability": "stable",
    "url":{
      "paths":[
        {
          "path":"/{index}",
          "method":"PUT",
          "parts":{
            "index":{
              "type":"string",
              "description":"The name of the index"
            }
          }
        }
      ]
    },
    "params": {
      "timeout": {
        "type" : "time",
        "description" : "Explicit operation timeout"
      }
    },
    "body": {
      "description" : "The configuration for the index (`settings` and `mappings`)"
    }
  }
}

The specification contains:

  • The name of the API (indices.create), which usually corresponds to the client calls

  • Link to the documentation at the http://elastic.co website.

    IMPORANT: This should be a live link. Several downstream ES clients use this link to generate their documentation. Using a broken link or linking to yet-to-be-created doc pages can break the Elastic docs build.

  • stability indicating the state of the API, has to be declared explicitly or YAML tests will fail

    • experimental highly likely to break in the near future (minor/path), no bwc guarantees. Possibly removed in the future.
    • beta less likely to break or be removed but still reserve the right to do so
    • stable No backwards breaking changes in a minor
  • Request URL: HTTP method, path and parts

  • Request parameters

  • Request body specification

NOTE If an API is stable but it response should be treated as an arbitrary map of key values please notate this as followed

{
  "api.name": {
    "stability" : "stable",
    "response": {
      "treat_json_as_key_value" : true
    }
  }
}

Backwards compatibility

The specification follows the same backward compatibility guarantees as Elasticsearch.

  • Within a Major, additions only.
  • If an item has been documented wrong it should be deprecated instead as removing these might break downstream clients.
  • Major version change, may deprecate pieces or simply remove them given enough deprecation time.

Deprecations

The specification schema allows to codify API deprecations, either for an entire API, or for specific parts of the API, such as paths or parameters.

Entire API:

{
  "api" : {
    "deprecated" : {
      "version" : "7.0.0",
      "description" : "Reason API is being deprecated"
    },
  }
}

Specific paths and their parts:

{
  "api": {
    "url": {
      "paths": [
        {
          "path":"/{index}/{type}/{id}/_create",
          "method":"PUT",
          "parts":{
            "id":{
              "type":"string",
              "description":"Document ID"
            },
            "index":{
              "type":"string",
              "description":"The name of the index"
            },
            "type":{
              "type":"string",
              "description":"The type of the document",
              "deprecated":true
            }
          },
          "deprecated":{
            "version":"7.0.0",
            "description":"Specifying types in urls has been deprecated"
          }
        }
      ]
    }
  }
}

Parameters

{
  "api": {
    "url": {
      "params": {
        "stored_fields": {
          "type": "list",
          "description" : "",
          "deprecated" : {
            "version" : "7.0.0",
            "description" : "Reason parameter is being deprecated"
          }
        }
      }
    }
  }
}

License

This software is licensed under the Apache License, version 2 ("ALv2").