Author Archives: Shivangi Gupta

Introduction to GraphQL – A Query Language for APIs

Posted on September 3, 2017

GraphQL is an API standard that provides a more efficient, powerful and flexible alternative to REST. It was created by Facebook in 2012 and was open-sourced in 2015 and is now maintained by a large community of companies and individuals from … Continue reading →

Posted in Scala, Tutorial, Web, web application, Web Services, Web Standard | Tagged , , , , | 3 Comments

Scala Best Practices

Posted on July 8, 2017

The central drive behind Scala is to make life easier and more productive for the developer — and that includes me. Scala does this with three principal techniques: It cuts down on boilerplate, so programmers can concentrate on the logic … Continue reading →

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Scala Best Practices : Pure Functions

Posted on July 5, 2017

We grew up in a world of imperative programming that’s why we are more addictive to writing code in imperative style. Everything is mutable around us. Mutability is not that bad. But shared mutability is devil’s work. The moment we … Continue reading →

Posted in Scala, Tutorial | Tagged , , , | 1 Comment

SQL made easy and secure with Slick

Posted on June 15, 2017

Slick stands for Scala Language-Integrated Connection Kit. It is Functional Relational Mapping (FRM) library for Scala that makes it easy to work with relational databases. Slick can be considered as a replacement of writing SQL queries as Strings with a … Continue reading →

Posted in database, Scala, Security, Slick, sql, Tutorial | Tagged , , , , , | Leave a comment

Streaming in Spark, Flink and Kafka

Posted on June 13, 2017

There is a lot of buzz going on between when to use use spark, when to use flink, and when to use Kafka. Both spark streaming and flink provides exactly once guarantee that every record will be processed exactly once … Continue reading →

Posted in Apache Flink, Apache Kafka, apache spark, Streaming | Tagged , , , | Leave a comment

Scala Map

Posted on May 1, 2017

Scala Map is a collection of Key-value pair. A map cannot have duplicate keys but different keys can have same values i.e keys are unique whereas values can be duplicate. Maps in Scala are not language syntax. They are library … Continue reading →

Posted in Scala | Tagged , , , | 3 Comments