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get-express-starter

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Get production ready express boilerplate with a single command

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/* eslint-disable no-param-reassign */ const paginate = (schema) => { schema.statics.paginate = async function (filter, options) { let sort = ''; if (options.sortBy) { const sortingCriteria = []; options.sortBy.split(',').forEach((sortOption) => { const [key, order] = sortOption.split(':'); sortingCriteria.push((order === 'desc' ? '-' : '') + key); }); sort = sortingCriteria.join(' '); } else { sort = 'createdAt'; } if (filter.search) { const [key, value] = filter.search.split(':'); filter[key] = { $regex: value.trim(), $options: 'i' }; delete filter.search; } const limit = options.limit && parseInt(options.limit, 10) > 0 ? parseInt(options.limit, 10) : 10; const page = options.page && parseInt(options.page, 10) > 0 ? parseInt(options.page, 10) : 1; const skip = (page - 1) * limit; const countPromise = this.countDocuments(filter).exec(); let docsPromise = this.find(filter).sort(sort).skip(skip).limit(limit); if (options.populate) { options.populate.split(',').forEach((populateOption) => { docsPromise = docsPromise.populate( populateOption .split('.') .reverse() .reduce((a, b) => ({ path: b, populate: a })) ); }); } docsPromise = docsPromise.exec(); return Promise.all([countPromise, docsPromise]).then((values) => { const [totalResults, results] = values; const totalPages = Math.ceil(totalResults / limit); const result = { results, page, limit, totalPages, totalResults, }; return Promise.resolve(result); }); }; }; module.exports = paginate;