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Elasticsearch Reference [7.3] » REST APIs » cat APIs » cat aliases API
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cat aliases APIedit

Returns information about currently configured aliases to indices, including filter and routing information.

Requestedit

GET /_cat/aliases/{name}

Path parametersedit

{name}
(Optional, string) Comma-separated list of alias names to return.

Query parametersedit

format
(Optional, string) Short version of the HTTP accept header. Valid values include JSON, YAML, etc.
h
(Optional, string) Comma-separated list of column names to display.
help
(Optional, boolean) If true, the response returns help information. Defaults to false.
local
(Optional, boolean) If true, the request retrieves information from the local node only. Defaults to false, which means information is retrieved from the master node.
master_timeout
(Optional, time units) Specifies the period of time to wait for a connection to the master node. If no response is received before the timeout expires, the request fails and returns an error. Defaults to 30s.
s
(Optional, string) Comma-separated list of column names or column aliases used to sort the response.
v
(Optional, boolean) If true, the response includes column headings. Defaults to false.

Examplesedit

GET /_cat/aliases?v

The API returns the following response:

alias  index filter routing.index routing.search
alias1 test1 -      -            -
alias2 test1 *      -            -
alias3 test1 -      1            1
alias4 test1 -      2            1,2

This response shows that alias2 has configured a filter, and specific routing configurations in alias3 and alias4.

If you only want to get information about specific aliases, you can specify the aliases in comma-delimited format as a URL parameter, e.g., /_cat/aliases/alias1,alias2.

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