你可以使用golang客户端库来获取Elasticsearch中的所有索引名称。

huangapple
go评论127阅读模式
英文:

How can I get all index name from Elasticsearch by using golang client library?

问题

我正在使用这个Go库https://pkg.go.dev/github.com/elastic/go-elasticsearch/esapi#CatIndicesRequest来从Elasticsearch查询。

我有一些关于查询的示例，但我正在寻找一种从Elasticsearch集群获取所有索引的API方法。但我在他们的文档中找不到可以使用的方法。有人知道获取所有索引的最佳方法吗？就像http API _cat/indices一样。

英文:

I am using this library in go https://pkg.go.dev/github.com/elastic/go-elasticsearch/esapi#CatIndicesRequest to query from Elasticsearch.

I has some examples on querying but I am looking for a API method to get all index from Elasticsearch cluster. But I can't find one I can use from their doc. Does anyone know what the best way to get all index? like the http api _cat/indices

答案1

得分: 2

这是一个可工作的示例：

  1. package main
  3. import (
  4. 	"context"
  5. 	"fmt"
  7. 	"github.com/elastic/go-elasticsearch/v7"
  8. 	"github.com/elastic/go-elasticsearch/v7/esapi"
  9. )
  11. func main() {
  13. 	cfg := elasticsearch.Config{
  14. 		Addresses: []string{
  15. 			"http://localhost:9243",
  16. 		},
  17. 		Username: "foo",
  18. 		Password: "bar",
  19. 	}
  20. 	es, err := elasticsearch.NewClient(cfg)
  21. 	if err != nil {
  22. 		panic(err)
  23. 	}
  24. 	res, err := esapi.CatIndicesRequest{Format: "json"}.Do(context.Background(), es)
  25. 	if err != nil {
  26. 		return
  27. 	}
  28. 	defer res.Body.Close()
  30. 	fmt.Println(res.String())
  31. }

您可以调整CatIndicesRequest以适应您的情况的输出格式。
例如，如果您使用CatIndicesRequest{Pretty: true, Human: true}，它将返回类似以下的内容：

  1. [200 OK] green open .ent-search-actastic-workplace_search_accounts_v16                                                                           yvaDvj9RTMOoWqIpKdC_kw 1 1       1      0  12.1kb     6kb
  2. green open .ent-search-workplace-search-content-events-ecs-ilm-logs-production-2022.01.23-000003                                        1D1BagTFQ6ypoZh2RdoUhQ 1 1       0      0    416b    208b
  3. green open .ent-search-actastic-workplace_search_search_groups_v4-name-unique-constraint                                                b_FRbLWJQfqXXxyTdcU2cQ 1 1       1      0     7kb   3.5kb
  4. green open .ent-search-actastic-crawler_crawl_requests_v4                                                                               kaUWb7YlTEeFH-Gcpz50qA 1 1       0      0    416b    208b
  5. green open .ent-search-api-ecs-ilm-logs-production-2022.03.09-000016                                                                    EKZZOtqOR_e8pOztXsLU1g 1 1       0      0    416b    208b
英文:

Here's a working example:

  1. package main
  3. import (
  4. 	"context"
  5. 	"fmt"
  7. 	"github.com/elastic/go-elasticsearch/v7"
  8. 	"github.com/elastic/go-elasticsearch/v7/esapi"
  9. )
  11. func main() {
  13. 	cfg := elasticsearch.Config{
  14. 		Addresses: []string{
  15. 			"http://localhost:9243",
  16. 		},
  17. 		Username: "foo",
  18. 		Password: "bar",
  19. 	}
  20. 	es, err := elasticsearch.NewClient(cfg)
  21. 	if err != nil {
  22. 		panic(err)
  23. 	}
  24. 	res, err := esapi.CatIndicesRequest{Format: "json"}.Do(context.Background(), es)
  25. 	if err != nil {
  26. 		return
  27. 	}
  28. 	defer res.Body.Close()
  30. 	fmt.Println(res.String())
  31. }

You can tweak the CatIndicesRequest to format the output for your case.
For example, if you use CatIndicesRequest{Pretty: true, Human: true}. It will return something like this:

  1. [200 OK] green open .ent-search-actastic-workplace_search_accounts_v16                                                                           yvaDvj9RTMOoWqIpKdC_kw 1 1       1      0  12.1kb     6kb
  2. green open .ent-search-workplace-search-content-events-ecs-ilm-logs-production-2022.01.23-000003                                        1D1BagTFQ6ypoZh2RdoUhQ 1 1       0      0    416b    208b
  3. green open .ent-search-actastic-workplace_search_search_groups_v4-name-unique-constraint                                                b_FRbLWJQfqXXxyTdcU2cQ 1 1       1      0     7kb   3.5kb
  4. green open .ent-search-actastic-crawler_crawl_requests_v4                                                                               kaUWb7YlTEeFH-Gcpz50qA 1 1       0      0    416b    208b
  5. green open .ent-search-api-ecs-ilm-logs-production-2022.03.09-000016                                                                    EKZZOtqOR_e8pOztXsLU1g 1 1       0      0    416b    208b

huangapple
  • 本文由 发表于 2022年3月23日 15:16:01
  • 转载请务必保留本文链接：https://go.coder-hub.com/71583148.html
  • elasticsearch
  • go
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