mongoose-partial-search

  const plugin = require('mongoose-partial-search');
  const mongoose = require('mongoose');

  const Schema = new mongoose.Schema({
    name: {
      type: String,
      searchable: true,
    }
  });

  Schema.plugin(plugin);
  
  const Model = mongoose.model('foo', Schema);
  const query = Model.searchBuilder('bar');

  // then, use the query however you like.