javascript - How To Remove Several Nested Objects Using an Array of ToDeleteItems -

i trying use checklist select locations collection , store them array called todelete : [{_id: string}]. array want run against locations inside of collections object , remove them.

i store collection id param , array body. have console logged array know has id's want delete , correctly passes them service.

what should server side function mongoose? best attempt.

//delete collection locations collectionrouter.post('removelocation/:id', function(req, res, next) {   collection.update(     {_id: req.params.id},     {$pull: {locations: {_id: {$in:req.body}}}},     function (err, result) {       if (err) {         return res.status(500).json({           title: 'an error occured',           error: err         });       }       res.status(201).json({         message: 'locations removed',         obj: result       });     }); }); 

here collection.service

removecollectionlocation(collection: collection, locations: string[])  {     let body = locations;     const headers = new headers({       'content-type': 'application/json'});     const token = localstorage.getitem('token')       ? '?token=' + localstorage.getitem('token')       : '';     return this.http.post('http://localhost:3000/collection/removelocation/' + collection._id + token , body, {headers: headers})       .map((response: response)=> response.json())       .catch((error: response)=> observable.throw(error.json()));   } 

thank everyone.

you can -

removecollectionlocation(collection: collection, locations: string[])  {     let body = locations;     const headers = new headers({       'content-type': 'application/json'});     const token = localstorage.getitem('token')       ? '?token=' + localstorage.getitem('token')       : '';     return this.http.post('http://localhost:3000/collection/removelocation/' + collection._id + token , body, {headers: headers})       .map((response: response)=> response.json())       .catch(error => observable.of(`bad promise: ${error}`));   }