seepur/app/Middleware/BookContext.js

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'use strict'
/** @typedef {import('@adonisjs/framework/src/Request')} Request */
/** @typedef {import('@adonisjs/framework/src/Response')} Response */
/** @typedef {import('@adonisjs/framework/src/View')} View */
const Book = use('App/Models/Book');
class BookContext {
/**
* @param {object} ctx
* @param {Request} ctx.request
* @param {Function} next
*/
async handle(ctx, next) {
const {request, auth, response} = ctx;
const bookId = request.params.bookId;
const book = await Book.find(bookId);
if (!book) {
response.status(404);
response.send({code: 404, message: 'Book not found'});
return;
}
ctx.book = book;
// call next to advance the request
await next()
}
}
module.exports = BookContext