indices.exists

edit
client.indices.exists({
  index: string | string[],
  local: boolean,
  ignore_unavailable: boolean,
  allow_no_indices: boolean,
  expand_wildcards: 'open' | 'closed' | 'none' | 'all',
  flat_settings: boolean,
  include_defaults: boolean
})

Reference

index

string | string[] - A comma-separated list of index names

local

boolean - Return local information, do not retrieve the state from master node (default: false)

ignore_unavailable or ignoreUnavailable

boolean - Ignore unavailable indexes (default: false)

allow_no_indices or allowNoIndices

boolean - Ignore if a wildcard expression resolves to no concrete indices (default: false)

expand_wildcards or expandWildcards

'open' | 'closed' | 'none' | 'all' - Whether wildcard expressions should get expanded to open or closed indices (default: open)
Default: open

flat_settings or flatSettings

boolean - Return settings in flat format (default: false)

include_defaults or includeDefaults

boolean - Whether to return all default setting for each of the indices.