Mongoose js Find user by username LIKE value

Question

I like to to go find a user in mongoDb by looking for a user called value  The problem with   username   peter    is that i dont find it if the username is  Peter   or  PeTER    or something like that   So i want to do like sql  SELECT   FROM users WHERE username LIKE  peter    Hope you guys get what im askin for   Short   field LIKE value  in mongoose js mongodb

User · Answer

db users find     username        regex    req body keyWord    options     i

User · Answer

You should use a regex for that   db users find  name   peter i      Be wary  though  that this query doesn t use index

User · Answer

mongoose doc for find  mongodb doc for regex   var Person   mongoose model  Person   yourSchema      find each person with a name contains  Ghost  Person findOne    name       regex   Ghost    options   i           function  err  person                 if  err  return handleError err                console log   s  s is a  s    person name first  person name last  person occupation         Note the first argument we pass to mongoose findOne function     name       regex   Ghost    options   i        name  is the field of the document you are searching   Ghost  is the regular expression   i  is for case insensitive match  Hope this will help you

User · Answer

router route   product name  name    get function req  res         var regex   new RegExp req params name   i           query     description  regex         Product find query  function err  products            if  err                res json err                      res json products

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The following query will find the documents with required string case insensitively         and with global occurrence also  var name    Peter       db User find  name                             regex  new RegExp name   ig                                            function err  doc                                           Your code here

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This is what I m using   module exports getBookByName   function name callback       var query                 name    regex   name            User find query callback

User · Answer

Just complementing  PeterBechP  s answer   Don t forget to scape the special chars  https   stackoverflow com a 6969486  function escapeRegExp string      return string replace                     g       amp        var name    Peter with special chars    model findOne  name  new RegExp     escapeRegExp name        i     function err  doc        Do your action here

User · Answer

This is my solution for converting every value in a req body to a mongoose LIKE param  let superQ       Object entries     req body   map  val  i  arr    gt        superQ val 0         regex   val 1     options    i        User find superQ     then result   gt        res send result       catch err   gt         res status 404  send   msg  err

User · Answer

if I want to query all record at some condition I can use this   if  userId     admin     userId      regex            User where  status   1  where  creator   userId

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For those that were looking for a solution here it is  var name    Peter   model findOne  name  new RegExp     name       quot i quot     function err  doc        Do your action here

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Here my code with expressJS   router route   wordslike  word        get function request  response                var word   request params word                     Word find   sentence    new RegExp word   i     function err  words                  if  err   response send err                   response json words

User · Answer

collection findOne       username   peter i    function  err  user        assert  peter i test user username

User · Answer

For dynamic search  you can follow like this also  const   keyword  skip  limit  sort     pagination params   const search   keyword                     title                 regex  new RegExp keyword   i                                      Model find search         sort sort         skip skip         limit limit

User · Answer

I had problems with this recently  i use this code and work fine for me   var data    Peter    db User find   name    new RegExp data   i     function err  docs       cb docs         Use directly  Peter i work  but i use     data   i  and not work for me

[javascript] Mongoose.js: Find user by username LIKE value

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