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script_get.go
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script_get.go
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// Copyright 2012-present Oliver Eilhard. All rights reserved.
// Use of this source code is governed by a MIT-license.
// See http://olivere.mit-license.org/license.txt for details.
package elastic
import (
"context"
"encoding/json"
"fmt"
"net/url"
"github.com/olivere/elastic/uritemplates"
)
// GetScriptService reads a stored script in Elasticsearch.
//
// See https://www.elastic.co/guide/en/elasticsearch/reference/6.2/modules-scripting.html
// for details.
type GetScriptService struct {
client *Client
pretty bool
id string
}
// NewGetScriptService creates a new GetScriptService.
func NewGetScriptService(client *Client) *GetScriptService {
return &GetScriptService{
client: client,
}
}
// Id is the script ID.
func (s *GetScriptService) Id(id string) *GetScriptService {
s.id = id
return s
}
// Pretty indicates that the JSON response be indented and human readable.
func (s *GetScriptService) Pretty(pretty bool) *GetScriptService {
s.pretty = pretty
return s
}
// buildURL builds the URL for the operation.
func (s *GetScriptService) buildURL() (string, string, url.Values, error) {
var (
err error
method = "GET"
path string
)
path, err = uritemplates.Expand("/_scripts/{id}", map[string]string{
"id": s.id,
})
if err != nil {
return "", "", url.Values{}, err
}
// Add query string parameters
params := url.Values{}
if s.pretty {
params.Set("pretty", "true")
}
return method, path, params, nil
}
// Validate checks if the operation is valid.
func (s *GetScriptService) Validate() error {
var invalid []string
if s.id == "" {
invalid = append(invalid, "Id")
}
if len(invalid) > 0 {
return fmt.Errorf("missing required fields: %v", invalid)
}
return nil
}
// Do executes the operation.
func (s *GetScriptService) Do(ctx context.Context) (*GetScriptResponse, error) {
// Check pre-conditions
if err := s.Validate(); err != nil {
return nil, err
}
// Get URL for request
method, path, params, err := s.buildURL()
if err != nil {
return nil, err
}
// Get HTTP response
res, err := s.client.PerformRequest(ctx, PerformRequestOptions{
Method: method,
Path: path,
Params: params,
})
if err != nil {
return nil, err
}
// Return operation response
ret := new(GetScriptResponse)
if err := s.client.decoder.Decode(res.Body, ret); err != nil {
return nil, err
}
return ret, nil
}
// GetScriptResponse is the result of deleting a stored script
// in Elasticsearch.
type GetScriptResponse struct {
Id string `json:"_id"`
Found bool `json:"found"`
Script json.RawMessage `json:"script"`
}