Add Header Parameters for Security Schemes

src/Refitter.Core/ParameterExtractor.cs

@@ -40,6 +40,26 @@ public static IEnumerable<string> GetParameters(
                 .ToList();
         }
 
+        if (settings.GenerateAuthenticationHeader)
+        {
+            var document = operation.Parent.Parent;
+            foreach (var securitySchemeName in operationModel.Security.SelectMany(x => x.Keys))
+            {
+                if (!document.SecurityDefinitions.TryGetValue(securitySchemeName, out var securityScheme))
+                {
+                    continue;
+                }
+
+                if (securityScheme.Type == OpenApiSecuritySchemeType.ApiKey
+                    && securityScheme.In == OpenApiSecurityApiKeyLocation.Header
+                    && !operationModel.Parameters.Any(p => p.Kind == OpenApiParameterKind.Header && p.IsHeader && p.Name == securityScheme.Name))
+                {
+                    headerParameters.Add($"[Header(\"{securityScheme.Name}\")] string {securityScheme.Name}");
+                    break;
+                }
+            }
+        }
+
         var formParameters = operationModel.Parameters
             .Where(p => p.Kind == OpenApiParameterKind.FormData && !p.IsBinaryBodyParameter)
             .Select(p =>

src/Refitter.Core/Settings/RefitGeneratorSettings.cs

@@ -356,4 +356,10 @@ payloads with (yet) unknown types are offered by newer versions of an API
     public bool UsePolymorphicSerialization { get; set; }
 
     [JsonIgnore] public IParameterNameGenerator? ParameterNameGenerator { get; set; }
+
+    /// <summary>
+    /// Gets or sets a value indicating whether to generate Security Schema Authentication headers.
+    /// </summary>
+    [Description("Generate Security Schema Authentication headers")]
+    public bool GenerateAuthenticationHeader { get; set; }
 }

src/Refitter.Tests/Resources/EmbeddedResources.cs

@@ -96,6 +96,50 @@ public static string SwaggerPetstoreYamlV3WithDifferentHeaders
         }
     }
 
+    public static string SwaggerPetstoreJsonV2WithAuthenticationHeaders
+    {
+        get
+        {
+            using var stream = GetStream("V2.SwaggerPetstoreWithAuthenticationHeaders.json");
+            using var reader = new StreamReader(stream);
+
+            return reader.ReadToEnd();
+        }
+    }
+
+    public static string SwaggerPetstoreJsonV3WithAuthenticationHeaders
+    {
+        get
+        {
+            using var stream = GetStream("V3.SwaggerPetstoreWithAuthenticationHeaders.json");
+            using var reader = new StreamReader(stream);
+
+            return reader.ReadToEnd();
+        }
+    }
+
+    public static string SwaggerPetstoreYamlV2WithAuthenticationHeaders
+    {
+        get
+        {
+            using var stream = GetStream("V2.SwaggerPetstoreWithAuthenticationHeaders.yaml");
+            using var reader = new StreamReader(stream);
+
+            return reader.ReadToEnd();
+        }
+    }
+
+    public static string SwaggerPetstoreYamlV3WithAuthenticationHeaders
+    {
+        get
+        {
+            using var stream = GetStream("V3.SwaggerPetstoreWithAuthenticationHeaders.yaml");
+            using var reader = new StreamReader(stream);
+
+            return reader.ReadToEnd();
+        }
+    }
+
     public static string SwaggerIllegalPathsJsonV3
     {
         get
@@ -134,7 +178,15 @@ public static string GetSwaggerPetstore(SampleOpenSpecifications version)
                 SwaggerPetstoreYamlV2WithDifferentHeaders,
             SampleOpenSpecifications.SwaggerPetstoreYamlV3WithDifferentHeaders =>
                 SwaggerPetstoreYamlV3WithDifferentHeaders,
+            SampleOpenSpecifications.SwaggerPetstoreJsonV2WithAuthenticationHeaders =>
+                SwaggerPetstoreJsonV2WithAuthenticationHeaders,
+            SampleOpenSpecifications.SwaggerPetstoreJsonV3WithAuthenticationHeaders =>
+                SwaggerPetstoreJsonV3WithAuthenticationHeaders,
+            SampleOpenSpecifications.SwaggerPetstoreYamlV2WithAuthenticationHeaders =>
+                SwaggerPetstoreYamlV2WithAuthenticationHeaders,
+            SampleOpenSpecifications.SwaggerPetstoreYamlV3WithAuthenticationHeaders =>
+                SwaggerPetstoreYamlV3WithAuthenticationHeaders,
             _ => throw new ArgumentOutOfRangeException(nameof(version), version, null)
         };
     }
-}
+}

src/Refitter.Tests/Resources/SampleOpenSpecifications.cs

@@ -9,6 +9,10 @@ public enum SampleOpenSpecifications
     SwaggerPetstoreJsonV2WithDifferentHeaders,
     SwaggerPetstoreJsonV3WithDifferentHeaders,
     SwaggerPetstoreYamlV2WithDifferentHeaders,
-    SwaggerPetstoreYamlV3WithDifferentHeaders,     
+    SwaggerPetstoreYamlV3WithDifferentHeaders,
+    SwaggerPetstoreJsonV2WithAuthenticationHeaders,
+    SwaggerPetstoreJsonV3WithAuthenticationHeaders,
+    SwaggerPetstoreYamlV2WithAuthenticationHeaders,
+    SwaggerPetstoreYamlV3WithAuthenticationHeaders,
     IllegalPathsJsonV3
-}
+}