MongoDB

Solution for Riak 500 Internal Server Error

I am new to Riak and learning it. Few days ago, I got 500 Internal Server Error exception while inserting data in a Riak bucket. It was weird because I was able to insert same data in different bucket. I tried to find out root cause, but didn’t get success. After beating my head whole day, I posted it on Roak forum and stackoverflow. I Continue Reading

Scala in Business | Knoldus Newsletter – September 2014

Hello Folks We are back again with September 2014, Newsletter. Here is this Scala in Business | Knoldus Newsletter – September 2014 In this newsletter you will get to know how organizations are getting benefits by using Typesafe Reactive Platform, how Scala can be beneficial for you and what trends are going in industries. So, if you haven’t subscribed to the newsletter yet then make Continue Reading

Classic CRUD application in Play Framework 2.3.0 with ReactiveMongo, WebJars and Bootswatch-United

Play 2.3.0 application with ReactiveMongo – reactive, asynchronous and non-blocking Scala driver for MongoDB. This is a classic CRUD application, backed by a MongoDB database. It demonstrates: Achieving, Futures to use more idiomatic error handling. Accessing a MongoDB database, using ReactiveMongo. Achieving, table pagination and sorting functionality. Replaced the embedded JS & CSS libraries with WebJars. Play and Scala-based template engine implementation Bootswatch-United with Twitter Continue Reading

Show Online Friends using Node.js with Nice UI Interface

Last month, we created a login demo template in Node.js and MongoDB. We also added signUp with Facebook, Twitter and google. So that user would not need to signup manually. We added profile management feature with a nice UI interface. So that uses could modify his profile detail along with his photo. We have used MongoDB for this application. We added Friend List management with Continue Reading

Making Friend-List in Node.js and MongoDB using Autocomplete

Last week, we created a login demo template in Node.js and MongoDB. We also added signUp with FaceBook, Twitter and google. So that user would not need to signup manually. We added profile management feature with a nice UI interface. So that uses could modify his profile detail along with his photo. Now we have added one more feature Friend List management with auto-complete functionality. Continue Reading

Profile Management with Nice UI Interface in Node.js and MongoDB

Last week, we created a login demo template in Node.js and MongoDB. We also added signUp with FaceBook, Twitter and google. So that user would not need to signup manually. Now we have added profile management feature with a nice UI interface. Now uses can modify his profile detail along with his photo. This is demo template, which can be used as a starting point Continue Reading

Sign-Up with Facebook, Twitter and Google using Node.js and MongoDB

Last week, we created a simple login application, which has sign up and login facility after successfully registration. Now we have added one more feature, i.e. Sign-up with Facebook, Twitter and Google. You can login with your facebook, twitter and google account. We’ll be adding some more features in this application very soon such as birthday reminder functionality. We have used Passport[authentication middleware for Node.js] Continue Reading

Easiest Way to Implement JOINs in MongoDB 2.4

Last year, I wrote a blog to implement JOINs in MongoDB. But this solution was applicable only for versions below Mongo 2.4. According to the release log of 2.4, this feature is removed. We could not use another collection on map reduce, which is invoked against a particular collection. Earlier it was permitted. MongoDB is a no-SQL database and doesn’t support joins. But if you Continue Reading

A Simple Login Application in Node.js and MongoDB

Node.js, a software platform, built on google chrome runtime. It uses v8, the same run time environment, that google chrome uses. It is one of the best plateform to easily build scalable network applications(especially server-side). We have created Node.js Login Template with a nice User Interface. If you want to use Node.js as plateform and MongoDB as Database then this demo project can be used Continue Reading

An alternate way to implement JOINs in MongoDB [Update]

I have updated this blog . As last description was creating some misunderstanding and lot of confusion . In one of my project , there was a requirement to generate report in .csv format from MongoDB without using any reporting tool and any language . I had to use only MongoDB query . In that report , I had to use multiple collection . Since Continue Reading

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