How can you remove all documents from a collection with Mongoose

Question

I know how to      Remove a single document  Remove the collection itself  Remove all documents from the collection with Mongo    But I don t know how to remove all documents from the collection with Mongoose  I want to do this when the user clicks a button  I assume that I need to send an AJAX request to some endpoint and have the endpoint do the removal  but I don t know how to handle the removal at the endpoint   In my example  I have a Datetime collection  and I want to remove all of the documents when the user clicks a button   api datetime index js   use strict    var express   require  express    var controller   require    datetime controller     var router   express Router     router get      controller index   router get    id   controller show   router post      controller create   router put    id   controller update   router patch    id   controller update   router delete    id   controller destroy    module exports   router    api datetime datetime controller js   use strict    var     require  lodash    var Datetime   require    datetime model        Get list of datetimes exports index   function req  res      Datetime find function  err  datetimes        if err    return handleError res  err         return res json 200  datetimes                Get a single datetime exports show   function req  res      Datetime findById req params id  function  err  datetime        if err    return handleError res  err         if  datetime    return res send 404         return res json datetime                Creates a new datetime in the DB  exports create   function req  res      Datetime create req body  function err  datetime        if err    return handleError res  err         return res json 201  datetime                Updates an existing datetime in the DB  exports update   function req  res      if req body  id    delete req body  id      Datetime findById req params id  function  err  datetime        if  err    return handleError res  err         if  datetime    return res send 404         var updated     merge datetime  req body       updated save function  err          if  err    return handleError res  err           return res json 200  datetime                        Deletes a datetime from the DB  exports destroy   function req  res      Datetime findById req params id  function  err  datetime        if err    return handleError res  err         if  datetime    return res send 404         datetime remove function err          if err    return handleError res  err           return res send 204                     function handleError res  err      return res send 500  err

User · Answer

MongoDB shell version v4 2 6 Node v14 2 0  Assuming you have a Tour Model  tourModel js  const mongoose   require  mongoose     const tourSchema   new mongoose Schema     name        type  String      required   true   A tour must have a name        unique  true      trim  true         createdAt        type  Date      default  Date now             const Tour   mongoose model  Tour   tourSchema    module exports   Tour    Now you want to delete all tours at once from your MongoDB  I also providing connection code to connect with the remote cluster  I used deleteMany    if you do not pass any args to deleteMany    then it will delete all the documents in Tour collection   const mongoose   require  mongoose    const Tour   require          models tourModel    const conStr    mongodb srv   lord  lt PASSWORD gt  cluster0-eeev8 mongodb net tour-guide retryWrites true amp w majority   const DB   conStr replace   lt PASSWORD gt    ADUSsaZEKESKZX    mongoose connect DB        useNewUrlParser  true      useCreateIndex  true      useFindAndModify  false      useUnifiedTopology  true          then  con    gt        console log  DB connection successful   con path            const deleteAllData   async      gt      try       await Tour deleteMany        console log  All Data successfully deleted        catch  err        console log err

User · Answer

In MongoDB  the db collection remove   method removes documents from a collection  You can remove all documents from a collection  remove all documents that match a condition  or limit the operation to remove just a single document   Source  Mongodb   If you are using mongo sheel  just do   db Datetime remove       In your case  you need   You didn t show me the delete button  so this button is just an example    lt a class  button  delete  gt  lt  a gt    Change the controller to   exports destroy   function req  res  next        Datetime remove     function err                if  err                    console log err                else                   res end  success                                        Insert this ajax delete method in your client js file             document  ready function                    button  delete   click function                     var dataId     this  attr  data-id                     if  confirm  are u sure                             ajax                           type   DELETE                           url                               success  function response                                if  response     error                                     console log  Err                                                               else                                   alert  Success                                    location reload                                                                                                      else                       alert  Canceled

User · Answer

remove   is deprecated  instead we can use deleteMany  DateTime deleteMany     callback

User · Answer

DateTime remove     callback  The empty object will match all of them

[javascript] How can you remove all documents from a collection with Mongoose?

Examples related to javascript

Examples related to mongodb

Examples related to mongoose