mirror of
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248 lines
6.6 KiB
Go
248 lines
6.6 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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// OpenPointInTimeService opens a point in time that can be used in subsequent
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// searches.
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//
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// See https://www.elastic.co/guide/en/elasticsearch/reference/7.x/point-in-time-api.html
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// for details.
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type OpenPointInTimeService 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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preference string
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routing string
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ignoreUnavailable *bool
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expandWildcards string
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keepAlive string
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bodyJson interface{}
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bodyString string
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}
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// NewOpenPointInTimeService creates a new OpenPointInTimeService.
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func NewOpenPointInTimeService(client *Client) *OpenPointInTimeService {
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return &OpenPointInTimeService{
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client: client,
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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 *OpenPointInTimeService) Pretty(pretty bool) *OpenPointInTimeService {
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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 *OpenPointInTimeService) Human(human bool) *OpenPointInTimeService {
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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 *OpenPointInTimeService) ErrorTrace(errorTrace bool) *OpenPointInTimeService {
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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 *OpenPointInTimeService) FilterPath(filterPath ...string) *OpenPointInTimeService {
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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 *OpenPointInTimeService) Header(name string, value string) *OpenPointInTimeService {
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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 *OpenPointInTimeService) Headers(headers http.Header) *OpenPointInTimeService {
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s.headers = headers
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return s
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}
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// Preference specifies the node or shard the operation should be performed on.
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func (s *OpenPointInTimeService) Preference(preference string) *OpenPointInTimeService {
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s.preference = preference
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return s
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}
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// Index is the name of the index (or indices).
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func (s *OpenPointInTimeService) Index(index ...string) *OpenPointInTimeService {
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s.index = index
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return s
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}
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// Routing is a specific routing value.
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func (s *OpenPointInTimeService) Routing(routing string) *OpenPointInTimeService {
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s.routing = routing
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return s
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}
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// IgnoreUnavailable indicates whether specified concrete indices should be
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// ignored when unavailable (missing or closed).
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func (s *OpenPointInTimeService) IgnoreUnavailable(ignoreUnavailable bool) *OpenPointInTimeService {
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s.ignoreUnavailable = &ignoreUnavailable
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return s
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}
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// ExpandWildcards indicates whether to expand wildcard expression to
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// concrete indices that are open, closed or both.
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func (s *OpenPointInTimeService) ExpandWildcards(expandWildcards string) *OpenPointInTimeService {
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s.expandWildcards = expandWildcards
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return s
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}
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// KeepAlive indicates the specific time to live for the point in time.
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func (s *OpenPointInTimeService) KeepAlive(keepAlive string) *OpenPointInTimeService {
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s.keepAlive = keepAlive
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return s
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}
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// BodyJson is the document as a serializable JSON interface.
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func (s *OpenPointInTimeService) BodyJson(body interface{}) *OpenPointInTimeService {
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s.bodyJson = body
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return s
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}
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// BodyString is the document encoded as a string.
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func (s *OpenPointInTimeService) BodyString(body string) *OpenPointInTimeService {
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s.bodyString = body
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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 *OpenPointInTimeService) buildURL() (string, string, url.Values, error) {
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var err error
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var method, path string
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if len(s.index) > 0 {
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method = "POST"
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path, err = uritemplates.Expand("/{index}/_pit", map[string]string{
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"index": strings.Join(s.index, ","),
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})
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} else {
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method = "POST"
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path = "/_pit"
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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.preference != "" {
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params.Set("preference", s.preference)
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}
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if s.routing != "" {
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params.Set("routing", s.routing)
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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.expandWildcards != "" {
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params.Set("expand_wildcards", s.expandWildcards)
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}
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if s.keepAlive != "" {
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params.Set("keep_alive", s.keepAlive)
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}
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return method, path, params, nil
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}
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// Validate checks if the operation is valid.
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func (s *OpenPointInTimeService) 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 s.keepAlive == "" {
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invalid = append(invalid, "KeepAlive")
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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 *OpenPointInTimeService) Do(ctx context.Context) (*OpenPointInTimeResponse, 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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method, 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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// Setup HTTP request body
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var body interface{}
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if s.bodyJson != nil {
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body = s.bodyJson
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} else {
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body = s.bodyString
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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: method,
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Path: path,
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Params: params,
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Body: body,
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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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ret := new(OpenPointInTimeResponse)
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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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// OpenPointInTimeResponse is the result of opening a point in time.
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type OpenPointInTimeResponse struct {
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Id string `json:"id,omitempty"`
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}
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