public sealed class FirewallAction.Types.SetHeaderAction : IMessage<FirewallAction.Types.SetHeaderAction>, IEquatable<FirewallAction.Types.SetHeaderAction>, IDeepCloneable<FirewallAction.Types.SetHeaderAction>, IBufferMessage, IMessage
Reference documentation and code samples for the Google Cloud reCAPTCHA Enterprise v1 API class FirewallAction.Types.SetHeaderAction.
A set header action sets a header and forwards the request to the
backend. This can be used to trigger custom protection implemented on the
backend.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThis webpage provides documentation for the \u003ccode\u003eFirewallAction.Types.SetHeaderAction\u003c/code\u003e class within the Google Cloud reCAPTCHA Enterprise v1 API for .NET.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eSetHeaderAction\u003c/code\u003e class allows you to set a header and forward the request to the backend, which can be used to trigger custom backend protection logic.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of the API class documented here is version 2.17.0, but documentation is also provided for previous versions, starting with 1.2.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eSetHeaderAction\u003c/code\u003e class inherits from \u003ccode\u003eobject\u003c/code\u003e and implements \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eSetHeaderAction\u003c/code\u003e class has two properties: \u003ccode\u003eKey\u003c/code\u003e to set the header key and \u003ccode\u003eValue\u003c/code\u003e to set the header value, both represented as strings.\u003c/p\u003e\n"]]],[],null,["# Google Cloud reCAPTCHA Enterprise v1 API - Class FirewallAction.Types.SetHeaderAction (2.18.0)\n\nVersion latestkeyboard_arrow_down\n\n- [2.18.0 (latest)](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/latest/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.17.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.17.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.16.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.16.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.15.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.15.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.14.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.14.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.13.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.13.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.12.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.12.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.11.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.11.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.10.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.10.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.9.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.9.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.8.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.8.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.7.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.7.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.6.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.6.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.5.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.5.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.4.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.4.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.3.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.3.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.2.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.2.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.1.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.1.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [2.0.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.0.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [1.6.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/1.6.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [1.5.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/1.5.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [1.4.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/1.4.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [1.3.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/1.3.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction)\n- [1.2.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/1.2.0/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction) \n\n public sealed class FirewallAction.Types.SetHeaderAction : IMessage\u003cFirewallAction.Types.SetHeaderAction\u003e, IEquatable\u003cFirewallAction.Types.SetHeaderAction\u003e, IDeepCloneable\u003cFirewallAction.Types.SetHeaderAction\u003e, IBufferMessage, IMessage\n\nReference documentation and code samples for the Google Cloud reCAPTCHA Enterprise v1 API class FirewallAction.Types.SetHeaderAction.\n\nA set header action sets a header and forwards the request to the\nbackend. This can be used to trigger custom protection implemented on the\nbackend. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e FirewallAction.Types.SetHeaderAction \n\nImplements\n----------\n\n[IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage-1.html)[FirewallAction](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/latest/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction)[Types](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/latest/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types)[SetHeaderAction](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/latest/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction), [IEquatable](https://learn.microsoft.com/dotnet/api/system.iequatable-1)[FirewallAction](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/latest/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction)[Types](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/latest/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types)[SetHeaderAction](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/latest/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction), [IDeepCloneable](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IDeepCloneable-1.html)[FirewallAction](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/latest/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction)[Types](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/latest/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types)[SetHeaderAction](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/latest/Google.Cloud.RecaptchaEnterprise.V1.FirewallAction.Types.SetHeaderAction), [IBufferMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IBufferMessage.html), [IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage.html) \n\nInherited Members\n-----------------\n\n[object.GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) \n[object.GetType()](https://learn.microsoft.com/dotnet/api/system.object.gettype) \n[object.ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring)\n\nNamespace\n---------\n\n[Google.Cloud.RecaptchaEnterprise.V1](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/latest/Google.Cloud.RecaptchaEnterprise.V1)\n\nAssembly\n--------\n\nGoogle.Cloud.RecaptchaEnterprise.V1.dll\n\nConstructors\n------------\n\n### SetHeaderAction()\n\n public SetHeaderAction()\n\n### SetHeaderAction(SetHeaderAction)\n\n public SetHeaderAction(FirewallAction.Types.SetHeaderAction other)\n\nProperties\n----------\n\n### Key\n\n public string Key { get; set; }\n\nOptional. The header key to set in the request to the backend server.\n\n### Value\n\n public string Value { get; set; }\n\nOptional. The header value to set in the request to the backend server."]]
