> ## Documentation Index
> Fetch the complete documentation index at: https://docs.falkordb.cloud/llms.txt
> Use this file to discover all available pages before exploring further.

# Update instance

> Update the configuration of a Pro Single-Zone instance.

Applies configuration changes to a running instance. Only the fields you send are changed. Changing `falkordbPassword` or `nodeInstanceType` restarts the instance.

## Authorization

<ParamField header="Cookie" type="string" required>
  Session cookie set by [Sign in](/api-reference/authentication/signin): `omnistrate_token=<jwt>`.
  Browsers send it automatically; other clients must forward it on every request.
</ParamField>

## Path parameters

<ParamField path="id" type="string" required>
  ID of the resource instance.
</ParamField>

## Query parameters

<ParamField query="subscriptionId" type="string">
  ID of the subscription that owns the instance.
</ParamField>

## Body

<ParamField body="requestParams" type="object" required>
  Instance configuration.

  <Expandable title="requestParams properties">
    <ParamField body="falkordbPassword" type="string" required>
      Default password for the database. Updating this value after deployment restarts the instance.
    </ParamField>

    <ParamField body="nodeInstanceType" type="string" default="e2-custom-4-8192" required>
      Compute instance type used for each node. See [Instance configuration](/api-reference/schemas#instance-configuration).
    </ParamField>

    <ParamField body="description" type="string" default="FalkorDB Instance">
      Description of the instance.
    </ParamField>

    <ParamField body="name" type="string" default="FalkorDB Instance">
      Human-readable name for the instance.
    </ParamField>
  </Expandable>
</ParamField>

## Sizing and tier availability

`nodeInstanceType` is required and must be one of the instance types below. The list differs from the Enterprise tiers, which accept any instance type available to the plan.

| Cloud provider | `nodeInstanceType`   | vCPU | Memory |
| -------------- | -------------------- | ---- | ------ |
| AWS            | `t4g.medium`         | 2    | 4 GB   |
| AWS            | `m7g.large`          | 2    | 8 GB   |
| AWS            | `r7g.large`          | 2    | 16 GB  |
| AWS            | `c7g.xlarge`         | 4    | 8 GB   |
| AWS            | `m7g.xlarge`         | 4    | 16 GB  |
| AWS            | `r7g.xlarge`         | 4    | 32 GB  |
| AWS            | `c7g.2xlarge`        | 8    | 16 GB  |
| AWS            | `m7g.2xlarge`        | 8    | 32 GB  |
| AWS            | `r7g.2xlarge`        | 8    | 64 GB  |
| AWS            | `c7g.4xlarge`        | 16   | 32 GB  |
| AWS            | `m7g.4xlarge`        | 16   | 64 GB  |
| AWS            | `r7g.4xlarge`        | 16   | 128 GB |
| AWS            | `c7g.8xlarge`        | 32   | 64 GB  |
| AWS            | `m7g.8xlarge`        | 32   | 128 GB |
| GCP            | `e2-medium`          | 2    | 4 GB   |
| GCP            | `e2-standard-2`      | 2    | 8 GB   |
| GCP            | `e2-highmem-2`       | 2    | 16 GB  |
| GCP            | `e2-custom-4-8192`   | 4    | 8 GB   |
| GCP            | `e2-standard-4`      | 4    | 16 GB  |
| GCP            | `e2-highmem-4`       | 4    | 32 GB  |
| GCP            | `e2-custom-8-16384`  | 8    | 16 GB  |
| GCP            | `e2-standard-8`      | 8    | 32 GB  |
| GCP            | `e2-highmem-8`       | 8    | 64 GB  |
| GCP            | `e2-custom-16-32768` | 16   | 32 GB  |
| GCP            | `e2-custom-32-65536` | 32   | 64 GB  |

`maxMemory` and `enableEnterpriseModule` are **not** available on the Pro tier. Memory is determined by the selected `nodeInstanceType`.

`numReplicas` is fixed at `2` for this component and cannot be changed.

See [Instance configuration](/api-reference/schemas#instance-configuration) for the full field reference.

## Response

<ResponseField name="id" type="string">
  ID of the resource instance.
</ResponseField>

## Errors

See [Error](/api-reference/schemas#error) for the shared error response shape.