Struct ValueParserContext

Carries the current route segment and request-scoped services into an asynchronous value parser.

Inherited Members

ValueType.Equals(object)

ValueType.GetHashCode()

ValueType.ToString()

object.GetType()

object.Equals(object, object)

object.ReferenceEquals(object, object)

Namespace: NanoRoute

Assembly: NanoRoute.dll

Syntax

public readonly struct ValueParserContext

Examples

builder.AddValueParser("user", static async context =>
{
    Guid id = Guid.Parse(context.Segment.ToString());
    object? user = await context.Services.GetRequiredService<IUserStore>().FindAsync(id, context.Cancellation);
    return new ValueParseResult(user is not null, user);
});

Properties

Arguments

Gets the parser arguments that were bound during route registration.

Declaration

public object? Arguments { get; init; }

Property Value

Type	Description
object

Examples

ParserLimits? limits = (ParserLimits?) context.Arguments;

Cancellation

Gets the linked pipeline cancellation token.

Declaration

public CancellationToken Cancellation { get; init; }

Property Value

Type	Description
CancellationToken

Examples

context.Cancellation.ThrowIfCancellationRequested();

Segment

Gets the decoded route segment.

Declaration

public required ReadOnlyMemory<char> Segment { get; init; }

Property Value

Type	Description
ReadOnlyMemory<char>

Examples

string value = context.Segment.ToString();

Services

Gets the request-scoped service provider.

Declaration

public required IServiceProvider Services { get; init; }

Property Value

Type	Description
IServiceProvider

Examples

IUserStore store = context.Services.GetRequiredService<IUserStore>();