# How To Modify Cluster Properties Using API Calls.

## Problem

At times there will be requirements to edit clusters properties which are supported \[listed below] via API calls:

`customAmi, numSpotWorkers, numMaxSpotWorkers, numWorkers, numMinWorkers, numMaxWorkers, spotPrice, spotWorkerFlavor, tags, etcdBackup, enableProfileAgent, enableCatapultMonitoring.`

## Environment

* Platform9 Managed Kubernetes - v5.5 and Higher.

## Procedure

**Syntax**: The syntax for the API call to update the cluster property is shown below:

{% tabs %}
{% tab title="Syntax" %}

```javascript
curl --request PUT --url https://<FQDN>/qbert/v4/<PROJECT_UUID>/clusters/<CLUSTER_UUID>  --header "X-Auth-Token: $TOKEN" --header "content-type: application/json" --data '{"<CLUSTER_PROPERTY>":"<VALUE>"}'
```

{% endtab %}
{% endtabs %}

**Example**: Here the API call will modify the `numMinWorkers` value to 5 for the cluster UUID `664afad3-ff7c-4184-bbaa-452622fe1f3b` in tenant/project UUID `d6af700ab0c848dbae1108309a7871ee` is shown below:

{% tabs %}
{% tab title="Example" %}

```javascript
curl --request PUT --url https://test.platform9.horse/qbert/v4/d6af700ab0c848dbae1108309a7871ee/clusters/664afad3-ff7c-4184-bbaa-452622fe1f3b --header "X-Auth-Token: $TOKEN" --header "content-type: application/json"  --data '{"numMinWorkers": 5 }'
OK#
```

{% endtab %}
{% endtabs %}

## Additional Information

{% hint style="info" %}
**Info**

It is very important to note that the type of value passed for each cluster property is crucial, the **numSpotWorkers**, **numMaxSpotWorkers**, **numWorkers**, **numMinWorkers**, **numMaxWorkers** are expected to have **integer** value \[**without** double quotes\*\*" "\*\*], for other properties, the values has to be mentioned as **strings** \[**within** double quotes **" "**].
{% endhint %}


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