Fuzzy Searching with Mongodb?

Question

In my MongoDB app, I have set up a search feature. The below code works very well but it only returns exact results. I want to change my code so that it can accept more "fuzzy" search results.

router.get("/", function(req, res){

    if (req.query.search) {

       Jobs.find({"name": req.query.search}, function(err, foundjobs){

       if(err){

           console.log(err);

       } else {

          res.render("jobs/index",{jobs:foundjobs});

       }

    }); 

    }

  Jobs.find({}, function(err, allJobs){

       if(err){

           console.log(err);

       } else {

          res.render("jobs/index",{jobs:allJobs});

       }

    });

});

Answer 1

I think you can use regex in MongoDB. The following is the code for what you're looking for (escapeRegex function source here):

function escapeRegex(text) {

    return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");

};

router.get("/", function(req, res) {

    if (req.query.search) {

       const regex = new RegExp(escapeRegex(req.query.search), 'gi');

       Jobs.find({ "name": regex }, function(err, foundjobs) {

           if(err) {

               console.log(err);

           } else {

              res.render("jobs/index", { jobs: foundjobs });

           }

       }); 

    }

}

With the help of package like search-index for search can help you to optimize your application's performance, with the added benefit of searching word stems (like returning "found" from "find").

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