@indiekit/endpoint-auth/lib/controllers/documentation.js

IndieAuth authentication and authorization endpoint for Indiekit. Grants and verifies access tokens and authenticates users.

/**
 * Service documentation
 * @type {import("express").ErrorRequestHandler}
 */
export const documentationController = (error, request, response, next) => {
  if (request.accepts("html")) {
    response.render("auth", {
      title: response.locals.__("auth.guidance.title"),
      ...(error.message && { error }),
    });
  } else if (request.accepts("json")) {
    return next(error);
  }
};