64 lines
1.8 KiB
Go
64 lines
1.8 KiB
Go
package esquery
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import (
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"bytes"
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"encoding/json"
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"github.com/elastic/go-elasticsearch/v7"
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"github.com/elastic/go-elasticsearch/v7/esapi"
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)
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// DeleteRequest represents a request to ElasticSearch's Delete By Query API,
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// described in
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// https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-delete-by-query.html
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type DeleteRequest struct {
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index []string
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query Mappable
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}
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// Delete creates a new DeleteRequest object, to be filled via method chaining.
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func Delete() *DeleteRequest {
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return &DeleteRequest{}
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}
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// Index sets the index names for the request
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func (req *DeleteRequest) Index(index ...string) *DeleteRequest {
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req.index = index
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return req
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}
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// Query sets a query for the request.
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func (req *DeleteRequest) Query(q Mappable) *DeleteRequest {
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req.query = q
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return req
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}
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// Run executes the request using the provided ElasticSearch client.
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func (req *DeleteRequest) Run(
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api *elasticsearch.Client,
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o ...func(*esapi.DeleteByQueryRequest),
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) (res *esapi.Response, err error) {
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return req.RunDelete(api.DeleteByQuery, o...)
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}
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// RunDelete is the same as the Run method, except that it accepts a value of
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// type esapi.DeleteByQuery (usually this is the DeleteByQuery field of an
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// elasticsearch.Client object). Since the ElasticSearch client does not provide
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// an interface type for its API (which would allow implementation of mock
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// clients), this provides a workaround. The Delete function in the ES client is
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// actually a field of a function type.
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func (req *DeleteRequest) RunDelete(
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del esapi.DeleteByQuery,
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o ...func(*esapi.DeleteByQueryRequest),
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) (res *esapi.Response, err error) {
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var b bytes.Buffer
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err = json.NewEncoder(&b).Encode(map[string]interface{}{
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"query": req.query.Map(),
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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 del(req.index, &b, o...)
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}
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