# Index Alias Using NEST
**URL:** https://discuss.elastic.co/t/index-alias-using-nest/213220
**Category:** Elasticsearch
**Created:** [December 27, 2019, 6:27pm UTC](https://discuss.elastic.co/t/index-alias-using-nest/213220 "2019-12-27T18:27:10Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@han1](https://discuss.elastic.co/u/han1)
#### Post date: [December 27, 2019, 6:27pm UTC](https://discuss.elastic.co/t/index-alias-using-nest/213220/1 "2019-12-27T18:27:10Z")
As usual No doc assistance when using NEST. We came across this OLD code on Stackoverflow:
```
> createIndexResponse = client.CreateIndex(indices[1]);
>
> // wait for index-v2 to be operable
> var clusterHealthResponse = client.ClusterHealth(c => c
> .WaitForStatus(WaitForStatus.Yellow)
> .Index(indices[1]));
>
> // swap the alias
> var bulkAliasResponse = client.Alias(ba => ba
> .Add(add => add.Alias(alias).Index(indices[1]))
> .Remove(remove => remove.Alias(alias).Index("*"))
> );
>
> // verify that the alias only exists on index-v2
> var aliasResponse = client.GetAlias(a => a.Name(alias));
```
But we are confused:
1- There is no ClusterHealth anymore.
2- The code that first Adds and then removes alias from All indexes - will that not remove the alias as well from the new index?
Would appreciate any assistance.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [January 24, 2020, 6:27pm UTC](https://discuss.elastic.co/t/index-alias-using-nest/213220/2 "2020-01-24T18:27:30Z")
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