25 lines
532 B
JavaScript
25 lines
532 B
JavaScript
let MongoClient = require('mongodb').MongoClient;
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module.exports = function (uri) {
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if (typeof uri !== 'string') {
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throw new TypeError('Expected uri to be a string');
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}
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let connection = null;
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return function expressMongoDb(req, res, next) {
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if (!connection) {
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connection = MongoClient.connect(uri, { useUnifiedTopology: true });
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}
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connection
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.then(function (client) {
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req['db'] = client.db('autocatdev');
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next();
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})
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.catch(function (err) {
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connection = undefined;
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next(err);
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});
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};
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}; |