Displaying 1 to 20 from 82 results

AbanteCart - Easy to use open source e-commerce platform, helps selling online

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AbanteCart is a free, open source shopping cart that was built by developers with a passion for free and accessible software. Founded in 2010 (launched in 2011), the platform is coded in PHP and supports MySQL. AbanteCart’s easy to use admin and basic layout management tool make this open source solution both easy to use and customizable, depending on the skills of the user. AbanteCart is very user-friendly, it is entirely possible for a user with little to no coding experience to set up and use this cart. If the user would be limited to the themes and features available in base AbanteCart, there is a marketplace where third-party extensions or plugins come to the rescue.

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Laravel eCommerce Platform - Bagisto

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Nowadays on the web, Shopping is one of the most popular activities. Everyone can shop at their recess, anytime from anywhere. However, this is interesting that anyone can have their pages built to display their favourite products and services.

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Cache using Hazelcast InMemory Data Grid

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Hazelcast is an open source In-Memory Data Grid (IMDG). It provides elastically scalable distributed In-Memory computing, widely recognized as the fastest and most scalable approach to application performance. Hazelcast makes distributed computing simple by offering distributed implementations of many developer-friendly interfaces from Java such as Map, Queue, ExecutorService, Lock and JCache.

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Caching using Ehcache Java Library

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Ehcache from Terracotta is one of Java's most widely used Cache. It is concurrent and highly scalable. It has small footprint with SL4J as the only dependencies. It supports multiple strategies like Expiration policies, Eviction policies. It supports three storage tiers, heap, off-heap, disk storage. There are very few caching products supports multiple tier storage. If you want to scale, you cannot store all items in heap there should be support for off-heap and disk storage. Ehcache is licensed under Apache 2.0. In this article, we can see about basic usage of Ehcache.

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Thymeleaf - Text display, Iteration and Conditionals

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Thymeleaf is a server-side Java template engine for both web and standalone environments. It is a better alternative to JavaServer Pages (JSP). Spring MVC and Thymeleaf compliment each other if chosen for web application development. In this article, we will discuss how to use Thymeleaf.

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Why Corporates should contribute to open source?

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Open source is leading innovation in all technological areas. Open source awareness has spread around the world. Schools and Colleges students speak about it. Government organization think about it. Corporates relay on open source technological stack to build their enterprise or cloud products.

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PySpark: Installation, RDDs, MLib, Broadcast and Accumulator

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We knew that Apace Spark- the most famous parallel computing model or processing the massive data set is written in Scala programming language. The Apace foundation offered a tool to support the Python in Spark which was named PySpark. The PySpark allows us to use RDDs in Python programming language through a library called Py4j. This article provides basic introduction about PySpark, RDD, MLib, Broadcase and Accumulator.

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Read and Write PDF using OpenPDF

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OpenPDF is based on a fork of iText version 4. iText is a widely used PDF library but they changed their license and moved to AGPL. In this article, we can see how to read and write to PDF, How to extract text from PDF and How to create password protected PDF.

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Compress files faster using Snappy

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Snappy is the fast compression/decompression library from Google. It does not target to reduce compression size but it does faster compression. Most of the open source products use Snappy.

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MailHog - Web and API based SMTP testing

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Most of the projects will have a requirement of sending and receiving mails. We have mentioned about GreenMail - Email Test Framework, in our previous article about API based SMTP testing. In this article, we discuss about MailHog - Web and API based SMTP testing. You send out a mail from your code and you can check it via web visually and also via API. Those who do API testing can check via API. Developers may want to visually verify the format of the mail. MailHog is a best bet for SMTP testing.

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JWT Authentication using Auth0 Library

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Json Web Token shortly called as JWT becomes defacto standard for authenticating REST API. In a traditional web application, once the user login credentials are validated, loggedin user object will be stored in session. Till user logs out, session will remain and user can work on the web application without any issues. Rest world is stateless, it is difficult to identify whether the user is already authenticated. One way is to use authenticate every API but that would be too expensive task as the client has to provide credentials in every API. Another approach is to use token.

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Generate Thumbnail in Java using Thumbnailator library 

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In our work there will be situation where we need to resize the image, generate thumbnails and so on. Users need to have little bit of image processing knowledge to achieve it. We have Java ImageIO APIs to achieve these functionalities. As said, we need to be aware of or spend time in learning these APIs. To help us, Thumbnailator library provides easy fluent style API and generates thumbnail in simple three lines of code.

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GreenMail - Email Test Framework in Java

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In any project there will be a need to send mail out to users. It could be an alert mail, forget password or authentication related mail. Mail is the default communication between the software and the users. As a developer, we can write code, to send out a mail but we need to make sure whether it got successfully received and how the body of mail, Is it the same like what we have sent. GreenMail is a Email test framework which helps to send and receive mails. It is a test framework which supports SMTP, POP3, IMAP including SSL.

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Activiti - Open Source Business Automation

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Activiti Cloud is the first Cloud Native BPM framework built to provide a scalable and transparent solution for BPM implementations in cloud environments. The BPM discipline was created to provide a better understanding of how organisations do their work and how this work can be improved in an iterative fashion.

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Microsoft acquires GitHub. Is it Good or Bad?

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Microsoft announced that it is acquiring GitHub for 7.5 Billion dollars. GitHub is a most used Software developer and Code hosting platform. It hosts more than 80 million code repository and more than 20 million developers collaborate in GitHub. In addition to managing code repositories, GitHub has developed many tools to increase the productivity of developers. Almost 70% of open source projects hosted in GitHub. Microsoft is a big corporate leader and it buying a open source code hosting company, Is it good or bad?

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Ngnix - High Performance Web Server, Proxy Server, Content Cache and Reverse Proxy

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Nginx is a High Performance Web Server, Proxy Server, Content Cache and Reverse Proxy server. It can also be used as mail proxy server and a generic TCP/UDP proxy server. Nginx claims to be more efficient and faster in the Web space compared to the other web servers. This can be evident with the architecture which is based on asynchronous event-driven approach. The event driven architecture enables to scale to hundreds / thousands of concurrent connections.

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ONLYOFFICE Document Server, an online office app for Nextcloud and ownCloud

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ONLYOFFICE Document Server is a free collaborative online office suite including viewers and editors for texts, spreadsheets and presentations, fully compatible with Office Open XML formats (.docx, .xlsx, .pptx). This article provides you the overview of ONLYOFFICE Document Server, its features, installation and integration with Nextcloud and ownCloud.

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Exonum Blockchain Framework by the Bitfury Group

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Exonum is an extensible open source blockchain framework for building private blockchains which offers outstanding performance, data security, as well as fault tolerance. The framework does not include any business logic, instead, you can develop and add the services that meet your specific needs. Exonum can be used to build various solutions from a document registry to a DevOps facilitation system.

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Europe Copyright reform may affect Open Source Ecosystem

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Europe is planning to bring in new copyright law, which would require code sharing sites to monitor copyright content to avoid potential copyright infringement. The proposed Article 13 of the EU Copyright Directive targets every online service that allows its users to upload and share content with each other, including code hosting platforms.

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An Introduction to the UnQLite Embedded NoSQL Database Engine

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UnQLite is an embedded NoSQL database engine. It's a standard Key/Value store similar to the more popular Berkeley DB and a document-store database similar to MongoDB with a built-in scripting language called Jx9 that looks like Javascript. Unlike most other NoSQL databases, UnQLite does not have a separate server process. UnQLite reads and writes directly to ordinary disk files. A complete database with multiple collections is contained in a single disk file. The database file format is cross-platform, you can freely copy a database between 32-bit and 64-bit systems or between big-endian and little-endian architectures.

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