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238 lines
6.4 KiB
Go
238 lines
6.4 KiB
Go
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// Copyright 2012-present Oliver Eilhard. All rights reserved.
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// Use of this source code is governed by a MIT-license.
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// See http://olivere.mit-license.org/license.txt for details.
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package elastic
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import (
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"context"
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"fmt"
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"net/http"
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"net/url"
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"strings"
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"github.com/olivere/elastic/v7/uritemplates"
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)
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// IndicesGetService retrieves information about one or more indices.
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//
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// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/indices-get-index.html
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// for more details.
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type IndicesGetService struct {
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client *Client
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pretty *bool // pretty format the returned JSON response
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human *bool // return human readable values for statistics
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errorTrace *bool // include the stack trace of returned errors
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filterPath []string // list of filters used to reduce the response
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headers http.Header // custom request-level HTTP headers
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index []string
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feature []string
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local *bool
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ignoreUnavailable *bool
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allowNoIndices *bool
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expandWildcards string
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flatSettings *bool
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}
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// NewIndicesGetService creates a new IndicesGetService.
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func NewIndicesGetService(client *Client) *IndicesGetService {
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return &IndicesGetService{
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client: client,
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index: make([]string, 0),
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feature: make([]string, 0),
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}
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}
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// Pretty tells Elasticsearch whether to return a formatted JSON response.
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func (s *IndicesGetService) Pretty(pretty bool) *IndicesGetService {
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s.pretty = &pretty
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return s
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}
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// Human specifies whether human readable values should be returned in
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// the JSON response, e.g. "7.5mb".
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func (s *IndicesGetService) Human(human bool) *IndicesGetService {
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s.human = &human
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return s
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}
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// ErrorTrace specifies whether to include the stack trace of returned errors.
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func (s *IndicesGetService) ErrorTrace(errorTrace bool) *IndicesGetService {
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s.errorTrace = &errorTrace
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return s
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}
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// FilterPath specifies a list of filters used to reduce the response.
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func (s *IndicesGetService) FilterPath(filterPath ...string) *IndicesGetService {
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s.filterPath = filterPath
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return s
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}
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// Header adds a header to the request.
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func (s *IndicesGetService) Header(name string, value string) *IndicesGetService {
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if s.headers == nil {
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s.headers = http.Header{}
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}
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s.headers.Add(name, value)
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return s
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}
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// Headers specifies the headers of the request.
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func (s *IndicesGetService) Headers(headers http.Header) *IndicesGetService {
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s.headers = headers
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return s
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}
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// Index is a list of index names.
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func (s *IndicesGetService) Index(indices ...string) *IndicesGetService {
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s.index = append(s.index, indices...)
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return s
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}
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// Feature is a list of features.
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func (s *IndicesGetService) Feature(features ...string) *IndicesGetService {
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s.feature = append(s.feature, features...)
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return s
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}
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// Local indicates whether to return local information, i.e. do not retrieve
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// the state from master node (default: false).
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func (s *IndicesGetService) Local(local bool) *IndicesGetService {
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s.local = &local
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return s
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}
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// IgnoreUnavailable indicates whether to ignore unavailable indexes (default: false).
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func (s *IndicesGetService) IgnoreUnavailable(ignoreUnavailable bool) *IndicesGetService {
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s.ignoreUnavailable = &ignoreUnavailable
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return s
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}
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// AllowNoIndices indicates whether to ignore if a wildcard expression
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// resolves to no concrete indices (default: false).
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func (s *IndicesGetService) AllowNoIndices(allowNoIndices bool) *IndicesGetService {
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s.allowNoIndices = &allowNoIndices
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return s
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}
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// ExpandWildcards indicates whether wildcard expressions should get
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// expanded to open or closed indices (default: open).
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func (s *IndicesGetService) ExpandWildcards(expandWildcards string) *IndicesGetService {
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s.expandWildcards = expandWildcards
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return s
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}
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// buildURL builds the URL for the operation.
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func (s *IndicesGetService) buildURL() (string, url.Values, error) {
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var err error
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var path string
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var index []string
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if len(s.index) > 0 {
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index = s.index
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} else {
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index = []string{"_all"}
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}
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if len(s.feature) > 0 {
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// Build URL
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path, err = uritemplates.Expand("/{index}/{feature}", map[string]string{
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"index": strings.Join(index, ","),
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"feature": strings.Join(s.feature, ","),
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})
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} else {
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// Build URL
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path, err = uritemplates.Expand("/{index}", map[string]string{
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"index": strings.Join(index, ","),
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})
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}
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if err != nil {
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return "", url.Values{}, err
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}
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// Add query string parameters
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params := url.Values{}
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if v := s.pretty; v != nil {
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params.Set("pretty", fmt.Sprint(*v))
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}
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if v := s.human; v != nil {
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params.Set("human", fmt.Sprint(*v))
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}
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if v := s.errorTrace; v != nil {
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params.Set("error_trace", fmt.Sprint(*v))
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}
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if len(s.filterPath) > 0 {
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params.Set("filter_path", strings.Join(s.filterPath, ","))
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}
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if s.expandWildcards != "" {
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params.Set("expand_wildcards", s.expandWildcards)
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}
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if s.flatSettings != nil {
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params.Set("flat_settings", fmt.Sprintf("%v", *s.flatSettings))
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}
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if s.local != nil {
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params.Set("local", fmt.Sprintf("%v", *s.local))
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}
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if s.ignoreUnavailable != nil {
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params.Set("ignore_unavailable", fmt.Sprintf("%v", *s.ignoreUnavailable))
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}
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if s.allowNoIndices != nil {
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params.Set("allow_no_indices", fmt.Sprintf("%v", *s.allowNoIndices))
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}
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return path, params, nil
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}
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// Validate checks if the operation is valid.
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func (s *IndicesGetService) Validate() error {
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var invalid []string
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if len(s.index) == 0 {
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invalid = append(invalid, "Index")
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}
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if len(invalid) > 0 {
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return fmt.Errorf("missing required fields: %v", invalid)
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}
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return nil
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}
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// Do executes the operation.
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func (s *IndicesGetService) Do(ctx context.Context) (map[string]*IndicesGetResponse, error) {
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// Check pre-conditions
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if err := s.Validate(); err != nil {
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return nil, err
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}
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// Get URL for request
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path, params, err := s.buildURL()
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if err != nil {
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return nil, err
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}
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// Get HTTP response
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res, err := s.client.PerformRequest(ctx, PerformRequestOptions{
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Method: "GET",
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Path: path,
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Params: params,
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Headers: s.headers,
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})
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if err != nil {
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return nil, err
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}
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// Return operation response
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var ret map[string]*IndicesGetResponse
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if err := s.client.decoder.Decode(res.Body, &ret); err != nil {
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return nil, err
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}
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return ret, nil
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}
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// IndicesGetResponse is part of the response of IndicesGetService.Do.
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type IndicesGetResponse struct {
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Aliases map[string]interface{} `json:"aliases"`
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Mappings map[string]interface{} `json:"mappings"`
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Settings map[string]interface{} `json:"settings"`
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Warmers map[string]interface{} `json:"warmers"`
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}
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