2bcff315f8* Update content according to latest spec * Add Title to a bunch of types * Add _meta to lots of types * Address feedback, more cleanup, fix NAOT test failure
68 lines
1.9 KiB
C#
68 lines
1.9 KiB
C#
using System.Text.Json.Nodes;
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using System.Text.Json.Serialization;
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namespace ModelContextProtocol.Protocol;
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/// <summary>
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/// Provides a base class for all request parameters.
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/// </summary>
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/// <remarks>
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/// See the <see href="https://github.com/modelcontextprotocol/specification/blob/main/schema/">schema</see> for details.
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/// </remarks>
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public abstract class RequestParams
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{
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/// <summary>Prevent external derivations.</summary>
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private protected RequestParams()
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{
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}
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/// <summary>
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/// Gets or sets metadata reserved by MCP for protocol-level metadata.
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/// </summary>
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/// <remarks>
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/// Implementations must not make assumptions about its contents.
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/// </remarks>
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[JsonPropertyName("_meta")]
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public JsonObject? Meta { get; set; }
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/// <summary>
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/// Gets or sets an opaque token that will be attached to any subsequent progress notifications.
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/// </summary>
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[JsonIgnore]
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public ProgressToken? ProgressToken
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{
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get
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{
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if (Meta?["progressToken"] is JsonValue progressToken)
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{
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if (progressToken.TryGetValue(out string? stringValue))
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{
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return new ProgressToken(stringValue);
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}
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if (progressToken.TryGetValue(out long longValue))
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{
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return new ProgressToken(longValue);
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}
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}
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return null;
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}
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set
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{
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if (value is null)
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{
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Meta?.Remove("progressToken");
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}
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else
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{
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(Meta ??= [])["progressToken"] = value.Value.Token switch
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{
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string s => JsonValue.Create(s),
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long l => JsonValue.Create(l),
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_ => throw new InvalidOperationException("ProgressToken must be a string or a long.")
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};
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}
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}
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}
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}
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