How deeply does Building Web APIs with ASP.NET Core cover MapGet?

Defines a concrete route and response, then extends the handler with exception details and trace identifiers.

MapGet

As explained in Building Web APIs with ASP.NET Core

MapGet is an ASP.NET Core minimal-API method that maps HTTP GET requests to route handlers.

MapGet is an ASP.NET Core minimal-API method that maps an HTTP GET request to a route handler. For exception handling, the /error route can return a ProblemDetails response that clients receive when the application produces an HTTP 500 error. section 6.2.4

Mapping the error endpoint

The route maps /error to a handler that returns Results.Problem(). CORS and response caching attributes allow cross-origin access while preventing the error response from being cached. The resulting JSON follows RFC 7807 and includes a 500 status. section 6.2.4

How Building Web APIs with ASP.NET Core covers it

Cover of Building Web APIs with ASP.NET Core

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Also explained in

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ASP.NET Core in Action, 3eMapGet is an ASP.NET Core endpoint-mapping method for associating a URL pattern and handler with HTTP GET requests.
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.NET in Action, Second EditionMapGet is an ASP.NET Core endpoint-mapping method that associates HTTP GET requests with a handler.

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Related concepts

HTTP GETuses · HTTP GET is a request method for retrieving a representation of a resource identified by the request target, without requesting a state change.
routinguses · Routing is the selection of a path, destination, or processing component to direct an item, request, or flow toward an intended endpoint.
Problem Detailsproduces · Problem Details is a standardized HTTP response format for communicating machine-readable information about a problem occurrence, commonly serialized as JSON.
IEndpointRouteBuilderuses · IEndpointRouteBuilder is an ASP.NET Core interface for registering route endpoints during application request-processing configuration.
minimal APIused by · A minimal API is an ASP.NET Core programming model for defining HTTP endpoints with minimal framework ceremony, typically without controller classes.
WebApplicationuses · WebApplication is an ASP.NET Core application type that hosts configured services, runs the web server, and exposes the HTTP request-processing pipeline.

This explainer was generated by Manning's knowledge graph from the text of Building Web APIs with ASP.NET Core. The section links point to the parts of the book it draws on.