PouchDB Delete Document

The db.remove() method is used to delete a document from PouchDB database. You have to pass id and _rev value to delete an existing document. This method accepts an optional callback function. You can also pass the complete document instead of id and _rev.

Syntax:

Delete Document Example

First retrieve the value of a document which you want to delete by using Read Document method.

{ age: 24,
  _id: '001',
  _rev: '2-b26971720f274f1ab7234b3a2be93c83' }

This document is stored in a database named "Second_Database" in PouchDB.

Now, use remove() method with _rev value and id of the document.

//Requiring the package
var PouchDB = require('PouchDB');
//Creating the database object
var db = new PouchDB('Second_Database');
//Deleting an existing document
db.remove('001', '2-b26971720f274f1ab7234b3a2be93c83', function(err) {
   if (err) {
      return console.log(err);
   } else {
      console.log("Document deleted successfully");
   }
});

Save the above code in a file named "Delete_Document.js" within a folder name "PouchDB_Examples". Open the command prompt and execute the JavaScript file using node:

Output:

Verification

You can verify that your document is deleted or not by retrieving your document. If it is deleted it will show message:

You can see that document is deleted.

Delete a Document from Remote Database

You can delete an existing document in a database which is stored remotely on CouchDB Server. For this, you have to pass the path of the database which contains the document that you want to delete.

Example

We have a database named "employees" on the CouchDB Server.

The employee database has a document having id "001".

Let's delete the above document.

//Requiring the package
var PouchDB = require('PouchDB');
//Creating the database object
var db = new PouchDB('http://localhost:5984/employees');
//Deleting an existing document
db.remove('001', '4-406cbc35b975d160d8814c04d64bafd3', function(err) {
   if (err) {
      return console.log(err);
   } else {
      console.log("Document deleted successfully");
   }
});

Save the above code in a file named "Delete_Remote_Document.js" within a folder name "PouchDB_Examples". Open the command prompt and execute the JavaScript file using node:

Output: