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Expose a JsonSerializerOptions setting in the prompts APIs (#279)

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* Expose a JsonSerializerOptions setting in the prompts APIs

* Change namespace for workaround converter.
This commit is contained in:
Eirik Tsarpalis 2025-04-11 18:02:21 +01:00 • committed by GitHub
commit ce4e6586d2
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1 changed files with 54 additions and 19 deletions
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21
src/ModelContextProtocol/Configuration/McpServerBuilderExtensions.cs
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@ -143,6 +143,7 @@ public static partial class McpServerBuilderExtensions
/// <summary>Adds <see cref="McpServerPrompt"/> instances to the service collection backing <paramref name="builder"/>.</summary>
/// <typeparam name="TPromptType">The prompt type.</typeparam>
/// <param name="builder">The builder instance.</param>
/// <param name="serializerOptions">The serializer options governing prompt parameter marshalling.</param>
/// <returns>The builder provided in <paramref name="builder"/>.</returns>
/// <exception cref="ArgumentNullException"><paramref name="builder"/> is <see langword="null"/>.</exception>
/// <remarks>
@ -154,7 +155,8 @@ public static partial class McpServerBuilderExtensions
DynamicallyAccessedMemberTypes.PublicMethods |
DynamicallyAccessedMemberTypes.NonPublicMethods |
DynamicallyAccessedMemberTypes.PublicConstructors)] TPromptType>(
this IMcpServerBuilder builder)
this IMcpServerBuilder builder,
JsonSerializerOptions? serializerOptions = null)
{
Throw.IfNull(builder);
@ -163,8 +165,8 @@ public static partial class McpServerBuilderExtensions
if (promptMethod.GetCustomAttribute<McpServerPromptAttribute>() is not null)
{
builder.Services.AddSingleton((Func<IServiceProvider, McpServerPrompt>)(promptMethod.IsStatic ?
services => McpServerPrompt.Create(promptMethod, options: new() { Services = services }) :
services => McpServerPrompt.Create(promptMethod, typeof(TPromptType), new() { Services = services })));
services => McpServerPrompt.Create(promptMethod, options: new() { Services = services, SerializerOptions = serializerOptions }) :
services => McpServerPrompt.Create(promptMethod, typeof(TPromptType), new() { Services = services, SerializerOptions = serializerOptions })));
}
}
@ -174,6 +176,7 @@ public static partial class McpServerBuilderExtensions
/// <summary>Adds <see cref="McpServerPrompt"/> instances to the service collection backing <paramref name="builder"/>.</summary>
/// <param name="builder">The builder instance.</param>
/// <param name="promptTypes">Types with marked methods to add as prompts to the server.</param>
/// <param name="serializerOptions">The serializer options governing prompt parameter marshalling.</param>
/// <returns>The builder provided in <paramref name="builder"/>.</returns>
/// <exception cref="ArgumentNullException"><paramref name="builder"/> is <see langword="null"/>.</exception>
/// <exception cref="ArgumentNullException"><paramref name="promptTypes"/> is <see langword="null"/>.</exception>
@ -183,7 +186,7 @@ public static partial class McpServerBuilderExtensions
/// instance for each. For instance methods, an instance will be constructed for each invocation of the prompt.
/// </remarks>
[RequiresUnreferencedCode(WithPromptsRequiresUnreferencedCodeMessage)]
public static IMcpServerBuilder WithPrompts(this IMcpServerBuilder builder, params IEnumerable<Type> promptTypes)
public static IMcpServerBuilder WithPrompts(this IMcpServerBuilder builder, IEnumerable<Type> promptTypes, JsonSerializerOptions? serializerOptions = null)
{
Throw.IfNull(builder);
Throw.IfNull(promptTypes);
@ -197,8 +200,8 @@ public static partial class McpServerBuilderExtensions
if (promptMethod.GetCustomAttribute<McpServerPromptAttribute>() is not null)
{
builder.Services.AddSingleton((Func<IServiceProvider, McpServerPrompt>)(promptMethod.IsStatic ?
services => McpServerPrompt.Create(promptMethod, options: new() { Services = services }) :
services => McpServerPrompt.Create(promptMethod, promptType, new() { Services = services })));
services => McpServerPrompt.Create(promptMethod, options: new() { Services = services, SerializerOptions = serializerOptions }) :
services => McpServerPrompt.Create(promptMethod, promptType, new() { Services = services, SerializerOptions = serializerOptions })));
}
}
}
@ -211,6 +214,7 @@ public static partial class McpServerBuilderExtensions
/// Adds types marked with the <see cref="McpServerPromptTypeAttribute"/> attribute from the given assembly as prompts to the server.
/// </summary>
/// <param name="builder">The builder instance.</param>
/// <param name="serializerOptions">The serializer options governing prompt parameter marshalling.</param>
/// <param name="promptAssembly">The assembly to load the types from. If <see langword="null"/>, the calling assembly will be used.</param>
/// <returns>The builder provided in <paramref name="builder"/>.</returns>
/// <exception cref="ArgumentNullException"><paramref name="builder"/> is <see langword="null"/>.</exception>
@ -235,7 +239,7 @@ public static partial class McpServerBuilderExtensions
/// </para>
/// </remarks>
[RequiresUnreferencedCode(WithPromptsRequiresUnreferencedCodeMessage)]
public static IMcpServerBuilder WithPromptsFromAssembly(this IMcpServerBuilder builder, Assembly? promptAssembly = null)
public static IMcpServerBuilder WithPromptsFromAssembly(this IMcpServerBuilder builder, Assembly? promptAssembly = null, JsonSerializerOptions? serializerOptions = null)
{
Throw.IfNull(builder);
@ -244,7 +248,8 @@ public static partial class McpServerBuilderExtensions
return builder.WithPrompts(
from t in promptAssembly.GetTypes()
where t.GetCustomAttribute<McpServerPromptTypeAttribute>() is not null
select t);
select t,
serializerOptions);
}
#endregion