PouchDB Create Batch
PouchDB Create Batch
PouchDB Create Batch
- Batch - It is an array of documents in PouchDB.
- db.bulkDocs() - It is used to create an array of documents or batch.
- You'll be able store all the documents that you need to form in PouchDB in an array and pass it to this method as a parameter. This method additionally takes a callback function as a parameter.
Syntax
db.bulkDocs(docs, [options], [callback]) Create Batch Example
db.bulkDocs() method is used to create multiple documents in PouchDB. Documents must be in JSON Format, a set of key-value pairs separated by comma (,) and enclosed within curly brace({}).
//Requiring the package
var PouchDB = require('PouchDB');
//Creating the database object
var db = new PouchDB('Second_Database');
//Preparing the documents array
doc1 = {_id: '001', name: 'Admin', age: 23, Designation: 'Programmer'}
doc2 = {_id: '002', name: 'nisha', age: 24, Designation: 'Teacher'}
doc3 = {_id: '003', name: 'Asha', age: 25, Designation: 'Mechanic'}
docs = [doc1, doc2, doc3]
//Inserting Documents
db.bulkDocs(docs, function(err, response) {
if (err) {
return console.log(err);
} else {
console.log("Documents created Successfully");
}
});
- Save the file name as "Create_Batch.js" within a folder name "PouchDB_Examples". Open the command prompt and execute the JavaScript file using node:
node Create_Batch.js
Output
PouchDB Create Batch
Create a Batch in Remote Database
We can create a batch in a database which is stored remotely on CouchDB Server. For this purpose, we have to pass the path of the database where we need to create the batch.
Example
- We have a database named "employees" on the CouchDB Server.
Let's create a batch in "employee" database.
//Requiring the package
var PouchDB = require('PouchDB');
//Creating the database object
var db = new PouchDB('http://localhost:5984/employees');
//Preparing the documents array
doc1 = {_id: '001', name: 'remma', age: 24, Designation: 'Teacher'}
doc2 = {_id: '002', name: 'Ram', age: 25, Designation: 'Designer'}
doc3 = {_id: '003', name: 'pravin', age: 26, Designation: 'Engineer'}
docs = [doc1, doc2, doc3]
//Inserting Documents
db.bulkDocs(docs, function(err, response) {
if (err) {
return console.log(err);
} else {
console.log("Documents (Batch) created Successfully");
}
});
- Save the file name as "Create_Batch_Remote.js" within a folder name "PouchDB_Examples". Open the command prompt and execute the JavaScript file using node:
node Create_Batch_Remote.js
Output:
PouchDB Create Batch
Verification
- You can see the created documents on CouchDB server.
PouchDB Create Batch