JAVASCRIPT

mongodb text search

db.stores.find( { $text: { $search: "java coffee shop" } } )
/*
  Use the $text query operator to perform text searches on 
  a collection with a text index.

  $text will tokenize the search string using whitespace and most 
  punctuation as delimiters, and perform a logical OR of all such 
  tokens in the search string.

  For example, you could use the following query to find all 
  stores containing any terms from the list "coffee", "shop", and "java":
*/

mongodb text search exact match

Model.find({
  $text: {
  	$search: `"exact_match"`
  }
})

Search by text score in mongodb

/**
 * query: The query in MQL.
 * First search the text using $match
 */
{
   $text:{$search:'Clara De'}
}


-------------

/**
 * specifications: The fields to
 *   include or exclude.
 *. Project results
 */
{
  _id:1,
  name:1,
'score':{$meta:'textScore'}
}

----------
/**
* query: The query in MQL.
* $match again
*/

{
     score:{ $gte: 0.2 }
}