#### [Abblix\.Oidc\.Server](https://www.abblix.com/en/docs/api/abblix-oidc-server 'index')
### [Abblix\.Oidc\.Server\.Common\.Constants](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Common.Constants 'Abblix\.Oidc\.Server\.Common\.Constants')

## HttpRequestHeaders Class

This class defines HTTP header names commonly used in HTTP requests\.

```csharp
public static class HttpRequestHeaders
```

Inheritance [System\.Object](https://learn.microsoft.com/en-us/dotnet/api/system.object 'System\.Object') → HttpRequestHeaders
### Fields

## HttpRequestHeaders\.Authorization Field {#Abblix.Oidc.Server.Common.Constants.HttpRequestHeaders.Authorization}

The "Authorization" header is used in HTTP requests to include authentication credentials\.
It is crucial for securing API endpoints and providing proof of client identity or permissions\.

```csharp
public const string Authorization = "Authorization";
```

#### Field Value
[System\.String](https://learn.microsoft.com/en-us/dotnet/api/system.string 'System\.String')

## HttpRequestHeaders\.DPoP Field {#Abblix.Oidc.Server.Common.Constants.HttpRequestHeaders.DPoP}

The "DPoP" request header carries the proof JWT bound to the current request method\+URI
per RFC 9449 §4\.1\. Present on token, userinfo, introspection, and revocation requests
when the client demonstrates proof\-of\-possession of the access\-token\-binding key\.

```csharp
public const string DPoP = "DPoP";
```

#### Field Value
[System\.String](https://learn.microsoft.com/en-us/dotnet/api/system.string 'System\.String')

## HttpRequestHeaders\.DPoPNonce Field {#Abblix.Oidc.Server.Common.Constants.HttpRequestHeaders.DPoPNonce}

The "DPoP\-Nonce" response header carries the fresh nonce on a `use_dpop_nonce`
challenge response per RFC 9449 §8 / §9\. Although a response header by direction, it
lives alongside the request\-header constants here to keep all DPoP wire\-form names in
one place; consumers are response formatters writing it onto outbound responses\.

```csharp
public const string DPoPNonce = "DPoP-Nonce";
```

#### Field Value
[System\.String](https://learn.microsoft.com/en-us/dotnet/api/system.string 'System\.String')