## Update a User Agent Blocking rule

`client.Firewall.UARules.Update(ctx, uaRuleID, params) (*UARuleUpdateResponse, error)`

**put** `/zones/{zone_id}/firewall/ua_rules/{ua_rule_id}`

Updates an existing User Agent Blocking rule.

### Parameters

- `uaRuleID string`

  The unique identifier of the User Agent Blocking rule.

- `params UARuleUpdateParams`

  - `ZoneID param.Field[string]`

    Path param: Defines an identifier.

  - `Configuration param.Field[UARuleUpdateParamsConfiguration]`

    Body param: The rule configuration.

    - `type AccessRuleIPConfiguration struct{…}`

      - `Target AccessRuleIPConfigurationTarget`

        The configuration target. You must set the target to `ip` when specifying an IP address in the rule.

        - `const AccessRuleIPConfigurationTargetIP AccessRuleIPConfigurationTarget = "ip"`

      - `Value string`

        The IP address to match. This address will be compared to the IP address of incoming requests.

    - `type IPV6Configuration struct{…}`

      - `Target IPV6ConfigurationTarget`

        The configuration target. You must set the target to `ip6` when specifying an IPv6 address in the rule.

        - `const IPV6ConfigurationTargetIp6 IPV6ConfigurationTarget = "ip6"`

      - `Value string`

        The IPv6 address to match.

    - `type AccessRuleCIDRConfiguration struct{…}`

      - `Target AccessRuleCIDRConfigurationTarget`

        The configuration target. You must set the target to `ip_range` when specifying an IP address range in the rule.

        - `const AccessRuleCIDRConfigurationTargetIPRange AccessRuleCIDRConfigurationTarget = "ip_range"`

      - `Value string`

        The IP address range to match. You can only use prefix lengths `/16` and `/24` for IPv4 ranges, and prefix lengths `/32`, `/48`, and `/64` for IPv6 ranges.

    - `type ASNConfiguration struct{…}`

      - `Target ASNConfigurationTarget`

        The configuration target. You must set the target to `asn` when specifying an Autonomous System Number (ASN) in the rule.

        - `const ASNConfigurationTargetASN ASNConfigurationTarget = "asn"`

      - `Value string`

        The AS number to match.

    - `type CountryConfiguration struct{…}`

      - `Target CountryConfigurationTarget`

        The configuration target. You must set the target to `country` when specifying a country code in the rule.

        - `const CountryConfigurationTargetCountry CountryConfigurationTarget = "country"`

      - `Value string`

        The two-letter ISO-3166-1 alpha-2 code to match. For more information, refer to [IP Access rules: Parameters](https://developers.cloudflare.com/waf/tools/ip-access-rules/parameters/#country).

  - `Mode param.Field[UARuleUpdateParamsMode]`

    Body param: The action to apply to a matched request.

    - `const UARuleUpdateParamsModeBlock UARuleUpdateParamsMode = "block"`

    - `const UARuleUpdateParamsModeChallenge UARuleUpdateParamsMode = "challenge"`

    - `const UARuleUpdateParamsModeWhitelist UARuleUpdateParamsMode = "whitelist"`

    - `const UARuleUpdateParamsModeJSChallenge UARuleUpdateParamsMode = "js_challenge"`

    - `const UARuleUpdateParamsModeManagedChallenge UARuleUpdateParamsMode = "managed_challenge"`

  - `Description param.Field[string]`

    Body param: An informative summary of the rule. This value is sanitized and any tags will be removed.

  - `Paused param.Field[bool]`

    Body param: When true, indicates that the rule is currently paused.

### Returns

- `type UARuleUpdateResponse struct{…}`

  - `ID string`

    The unique identifier of the User Agent Blocking rule.

  - `Configuration UARuleUpdateResponseConfiguration`

    The configuration object for the current rule.

    - `Target string`

      The configuration target for this rule. You must set the target to `ua` for User Agent Blocking rules.

    - `Value string`

      The exact user agent string to match. This value will be compared to the received `User-Agent` HTTP header value.

  - `Description string`

    An informative summary of the rule.

  - `Mode UARuleUpdateResponseMode`

    The action to apply to a matched request.

    - `const UARuleUpdateResponseModeBlock UARuleUpdateResponseMode = "block"`

    - `const UARuleUpdateResponseModeChallenge UARuleUpdateResponseMode = "challenge"`

    - `const UARuleUpdateResponseModeJSChallenge UARuleUpdateResponseMode = "js_challenge"`

    - `const UARuleUpdateResponseModeManagedChallenge UARuleUpdateResponseMode = "managed_challenge"`

  - `Paused bool`

    When true, indicates that the rule is currently paused.

### Example

```go
package main

import (
  "context"
  "fmt"

  "github.com/cloudflare/cloudflare-go"
  "github.com/cloudflare/cloudflare-go/firewall"
  "github.com/cloudflare/cloudflare-go/option"
)

func main() {
  client := cloudflare.NewClient(
    option.WithAPIToken("Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY"),
  )
  uaRule, err := client.Firewall.UARules.Update(
    context.TODO(),
    "372e67954025e0ba6aaa6d586b9e0b59",
    firewall.UARuleUpdateParams{
      ZoneID: cloudflare.F("023e105f4ecef8ad9ca31a8372d0c353"),
      Configuration: cloudflare.F[firewall.UARuleUpdateParamsConfigurationUnion](firewall.AccessRuleIPConfigurationParam{

      }),
      Mode: cloudflare.F(firewall.UARuleUpdateParamsModeChallenge),
    },
  )
  if err != nil {
    panic(err.Error())
  }
  fmt.Printf("%+v\n", uaRule.ID)
}
```

#### Response

```json
{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "result": {
    "id": "372e67954025e0ba6aaa6d586b9e0b59",
    "configuration": {
      "target": "ua",
      "value": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/603.2.4 (KHTML, like Gecko) Version/10.1.1 Safari/603.2.4"
    },
    "description": "Prevent access from abusive clients identified by this User Agent to mitigate a DDoS attack",
    "mode": "js_challenge",
    "paused": false
  },
  "success": true
}
```