## Create Firewall Rule

`client.Networking.FirewallRules.New(ctx, vpcID, body) (*Operation, error)`

**post** `/v1/networking/vpcs/{vpc_id}/firewall_rules`

Create a firewall rule

### Parameters

- `vpcID string`

- `body FirewallRuleNewParams`

  - `DestinationAddress param.Field[string]`

    Destination address of the Firewall Rule. Either VPC CIDR or VM in VPC. Must be in network-aligned/canonical form.

  - `DestinationPorts param.Field[[]string]`

    Destination ports of the Firewall Rule.

  - `Name param.Field[string]`

    Name of the Firewall Rule.

  - `Protocol param.Field[FirewallRuleNewParamsProtocol]`

    Protocol of the Firewall Rule.

    - `const FirewallRuleNewParamsProtocolTcp FirewallRuleNewParamsProtocol = "tcp"`

    - `const FirewallRuleNewParamsProtocolUdp FirewallRuleNewParamsProtocol = "udp"`

  - `SourceAddress param.Field[string]`

    Source address of the Firewall Rule. Address of 0.0.0.0 requires a CIDR mask of 0. Must be in network-aligned/canonical form.

  - `Tags param.Field[[]string]`

    Tags to attach to the Firewall Rule.

### Returns

- `type Operation struct{…}`

  Operation details.

  - `ID string`

    Unique identifier for the Operation.

  - `CreatedAt Time`

    When the Operation was created.

  - `Details OperationDetails`

    Structured details about what an operation is changing.

    - `Changes OperationChanges`

      Map of changed field names to their from/to diffs. Keys depend on the parent operation's kind+type.

      - `From OperationFieldDiffFromUnion`

        Previous value.

        - `string`

        - `float64`

        - `bool`

        - `type OperationFieldDiffFromArray []string`

      - `To OperationFieldDiffToUnion`

        New value.

        - `string`

        - `float64`

        - `bool`

        - `type OperationFieldDiffToArray []string`

  - `Kind OperationKind`

    Kind of Operation.

    - `const OperationKindVM OperationKind = "vm"`

    - `const OperationKindVolume OperationKind = "volume"`

    - `const OperationKindVPC OperationKind = "vpc"`

    - `const OperationKindFirewallRule OperationKind = "firewall_rule"`

    - `const OperationKindNKSCluster OperationKind = "nks_cluster"`

    - `const OperationKindNKSNodePool OperationKind = "nks_node_pool"`

  - `ProjectID string`

    Project ID the Operation belongs to.

  - `ResourceID string`

    ID of the resource that the Operation is acting on.

  - `Status OperationStatus`

    Status of the Operation.

    - `const OperationStatusPending OperationStatus = "pending"`

    - `const OperationStatusRunning OperationStatus = "running"`

    - `const OperationStatusDone OperationStatus = "done"`

    - `const OperationStatusFailed OperationStatus = "failed"`

    - `const OperationStatusUnknown OperationStatus = "unknown"`

  - `Type OperationType`

    Type of Operation.

    - `const OperationTypeCreate OperationType = "create"`

    - `const OperationTypeUpdate OperationType = "update"`

    - `const OperationTypeDelete OperationType = "delete"`

    - `const OperationTypeRestart OperationType = "restart"`

  - `UpdatedAt Time`

    When the Operation was updated.

### Example

```go
package main

import (
  "context"
  "fmt"

  "github.com/nirvana-labs/nirvana-go"
  "github.com/nirvana-labs/nirvana-go/networking"
  "github.com/nirvana-labs/nirvana-go/option"
)

func main() {
  client := nirvana.NewClient(
    option.WithAPIKey("My API Key"),
  )
  operation, err := client.Networking.FirewallRules.New(
    context.TODO(),
    "vpc_id",
    networking.FirewallRuleNewParams{
      DestinationAddress: "10.0.0.0/25",
      DestinationPorts: []string{"22", "80", "443"},
      Name: "my-firewall-rule",
      Protocol: networking.FirewallRuleNewParamsProtocolTcp,
      SourceAddress: "0.0.0.0/0",
    },
  )
  if err != nil {
    panic(err.Error())
  }
  fmt.Printf("%+v\n", operation.ID)
}
```

#### Response

```json
{
  "id": "123e4567-e89b-12d3-a456-426614174000",
  "created_at": "2025-01-01T00:00:00Z",
  "details": {
    "changes": {
      "foo": {
        "from": "string",
        "to": "string"
      }
    }
  },
  "kind": "vm",
  "project_id": "123e4567-e89b-12d3-a456-426614174000",
  "resource_id": "123e4567-e89b-12d3-a456-426614174000",
  "status": "pending",
  "type": "create",
  "updated_at": "2025-01-01T00:00:00Z"
}
```