News Aggregator

Debugging jsoup Java Code in Production Using Lightrun

Aggregated on: Sat Apr 23 2022 17:05:40 GMT+0000 (Coordinated Universal Time)

Scraping websites built for modern browsers is far more challenging than it was a decade ago. jsoup is a convenient API that makes scraping websites trivial via DOM traversal, CSS Selectors, JQuery-Like methods, and more. But it isn’t without its caveat. Every scraping API is a ticking time bomb. Real-world HTML is flaky. It changes without notice since it isn’t a documented API. When our Java program fails in scraping, we’re suddenly stuck with a ticking time bomb. In some cases, this is a simple issue that we can reproduce locally and deploy. But some nuanced changes in the DOM tree might be harder to observe in a local test case. In those cases, we need to understand the problem in the parse tree before pushing an update. Otherwise, we might have a broken product in production.

5 Common Step Functions Issues

Aggregated on: Sat Apr 23 2022 17:05:40 GMT+0000 (Coordinated Universal Time)

Step Functions, the serverless finite state machine service from AWS. With DynamoDB, Lambda, and API Gateway, it forms the core of serverless AWS services. If you have tasks with multiple steps and you want to ensure they will get executed in the proper order, Step Functions is your service of choice. It offers direct integrations with many AWS services, so you don’t need to use Lambda Functions as glue. This can improve the performance of your state machine and lower its costs.

Diagrams as Code: The Complete How-to-Use Guide

Aggregated on: Sat Apr 23 2022 16:35:40 GMT+0000 (Coordinated Universal Time)

We're seeing more and more tools that enable you to create software architecture and other Diagrams as Code. The main benefit of using this concept is that majority of the Diagrams as Code tools can be scripted and integrated into a built pipeline for generating automatic documentation. The other benefit responsible for the growing use of Diagrams as code to create software architecture is that it enables the use of text-based tooling, which most software developers already use. Furthermore, text is easily version-controllable and diff’able. Table of Contents What is Diagram as Code? How to install Diagrams How to use Diagrams Conclusion

The Importance of EiPaaS

Aggregated on: Sat Apr 23 2022 16:05:40 GMT+0000 (Coordinated Universal Time)

This is an article from DZone's 2022 Enterprise Application Integration Trend Report.For more: Read the Report In 1993, I started working in the Group Insurance division of a medium-sized insurance company. The products sold by this division were made available to life insurance agents via a locally executed application written in the Pascal programming language. Those agents placed the disk into their computer and launched an MS-DOS executable, which started a character-based application focused on generating new policy sales.

APIs Outside, Events Inside

Aggregated on: Sat Apr 23 2022 03:35:39 GMT+0000 (Coordinated Universal Time)

This is an article from DZone's 2022 Enterprise Application Integration Trend Report.For more: Read the Report In the echo chambers of application development, we constantly hear the mantra "API-first," but this slogan has a fundamental flaw: APIs should typically be the last choice when building a distributed application. The correct war cry ought to instead be: "APIs outside, events inside."

Glue Your Happy Brains Together With Shared State

Aggregated on: Sat Apr 23 2022 02:35:39 GMT+0000 (Coordinated Universal Time)

Operating under a shared reality is a competitive advantage, but most teams share state poorly. Let’s talk about gluing brains together! Image by Willi Heidelbach from Pixabay

How to Refactor Meetings as They Grow With the Rule of Eight

Aggregated on: Fri Apr 22 2022 22:35:39 GMT+0000 (Coordinated Universal Time)

A rule of thumb is that a meeting with more than eight people isn’t a decision-making meeting. When you have more than eight participants, you either need to change the format of the meeting, or you need to restructure the participants — and you usually want to do some deeper work on communication and organizational structure.

Where Does GraphQL Fit In the Stack?

Aggregated on: Fri Apr 22 2022 22:05:39 GMT+0000 (Coordinated Universal Time)

GraphQL is a popular language, and it’s getting more popular by the day. We hear front-end developers, mobile developers, and back-end developers talking about GraphQL. So it’s clear that developers use GraphQL across the stack. But where exactly does GraphQL fit in the stack, and what benefits do you gain by using it? In this article, we’ll first do a quick recap of what “the stack” looks like without GraphQL, and then we’ll dive into how adding GraphQL changes it and what that means for building applications.

Speeding Up Large Collections Processing in Java

Aggregated on: Fri Apr 22 2022 20:35:39 GMT+0000 (Coordinated Universal Time)

According to The Britannica Dictionary, the term collection designates a group of interesting or beautiful objects brought together in order to show or study them.

CSS Basics: Creating Inset Borders With CSS

Aggregated on: Fri Apr 22 2022 19:35:39 GMT+0000 (Coordinated Universal Time)

Sometimes when creating inset borders, we want to set them at different distances from the edge of the element. There are several ways to do this in CSS, which can all be applicable depending on the situation you find yourself in. Let's look at the different ways to create inset borders with CSS.

The Ultimate Guide to Data Collection in Data Science

Aggregated on: Fri Apr 22 2022 19:35:39 GMT+0000 (Coordinated Universal Time)

In today’s world, data plays a key role in the success of any business. Data produced by your target audience, your competitors, information from the field you work and data your company gains on its own may help you find more customers, analyze your business decisions, reoptimize the business model or escalate to other markets. Data will help you define problems your business can solve and provide better service, specifying precisely your clients' needs. According to The McKinsey Global Institute research, data-driven companies are 23 times more likely to acquire customers, six times as likely to retain customers, and 19 times as likely to be profitable.

6 Agile Methodology Stages You Need to Be Aware Of

Aggregated on: Fri Apr 22 2022 19:35:39 GMT+0000 (Coordinated Universal Time)

Agile methodology is becoming more and more important and popular in modern workspaces. The complexity of projects and the need for continuous modifications have shifted the project management methodology from traditional to agile. However, to thrive agile methodology in your organization, you need to have an adaptive and flexible team to sudden changes and new requirements.

How To Use Vue Template Refs to Access HTML Elements

Aggregated on: Fri Apr 22 2022 19:05:39 GMT+0000 (Coordinated Universal Time)

Vue gives us a lot of powerful features when it comes to manipulating the DOM. It simplifies the job of maintaining states, to creating UIs which are easy to maintain, and fun to use. One thing Vue does really well is removing the need for direct DOM manipulation. Sometimes, though, we still need to manipulate or reference DOM elements themselves. Fortunately, Vue has thought of this and allows us to do this with the ref attribute. Referencing DOM Elements in Vue Although it's certainly possible to use .querySelector() on a Vue document, it's not best practice. If we want to reference a DOM element, we can use the ref attribute in Vue.

What Is Agile Testing? Life Cycle, Benefits, and Principles

Aggregated on: Fri Apr 22 2022 18:35:39 GMT+0000 (Coordinated Universal Time)

In this post, we'll take a quick look at what is Agile testing, the phases of the agile testing life cycle, agile testing principles, and more. Agile testing is an iterative and incremental process that emerges from a person's or a buyer's collaboration and builds teams.

Multi-Cluster Kubernetes Management and Access

Aggregated on: Fri Apr 22 2022 18:35:39 GMT+0000 (Coordinated Universal Time)

As cloud and Kubernetes have become a standard, security remains one of the top inhibitors to modern application development. To reduce security risks, organizations can’t manage access control on a cluster-by-cluster basis. And not finding a scalable approach leads to misconfigurations, vulnerabilities, and failed compliance audits. Let us travel back in time and picture a fort. Forts were huge with massively thick walls, doors, watch towers and a moat to protect them from attacks. There were several layers of defense to keep attackers at bay. An attacker might swim across the moat but still had to climb the high walls before entering the fort. Thus, an attacker might compromise a single layer, but having several layers makes it difficult for an attacker to enter the fort.

Kubernetes-Based Private Container Registry in Alibaba Cloud With Harbor and ARC CLI

Aggregated on: Fri Apr 22 2022 18:35:39 GMT+0000 (Coordinated Universal Time)

This article demonstrates how to install a managed Kubernetes cluster in Alibaba Cloud with ARC CLI and deploy a private container registry using Harbor and Helm. Harbor is an open-source registry that stores artifacts with role-based access control and policies and ensures images are scanned and free from vulnerabilities.

Federated Schema Design

Aggregated on: Fri Apr 22 2022 18:05:39 GMT+0000 (Coordinated Universal Time)

Introduction If you’ve been building with GraphQL, you likely know how essential good schema design is. As the entry-point to all your GraphQL operations, it’s desirable to design a schema that’s easy to understand and work with, serves the needs of our clients today, and can be changed to fit their needs tomorrow. This article teaches about the supergraph, platform thinking, and why it’s key to designing your graph for extensibility. We also discuss considerations that make federated schema design different from the monolithic approach. Finally, we cover the macro-level principles that help us design extensible and maintainable federated graphs.

How Does Kafka Perform When You Need Low Latency?

Aggregated on: Fri Apr 22 2022 18:05:39 GMT+0000 (Coordinated Universal Time)

Most Kafka benchmarks appear to test high throughput but not low latency. Apache Kafka was traditionally used for high throughput rather than latency-sensitive messaging, but it does have a low-latency configuration. (Mostly setting linger.ms=0 and reducing buffer sizes). In this configuration, you can get below 1-millisecond latency a good percentage of the time for modest throughputs. Benchmarks tend to focus on clustering Kafka in a high-throughput configuration. While this is perhaps the most common use case, how does it perform if you need lower latencies?

How I Cracked Chinese Wordle Using a Knowledge Graph

Aggregated on: Fri Apr 22 2022 17:35:39 GMT+0000 (Coordinated Universal Time)

Wordle is going viral these days on social media. The game made by Josh Wardle allows players to try six times to guess a five-letter word, with feedback given for each guess in the form of colored tiles indicating when letters match or occupy the correct position. We have seen many Wordle variants for languages that use the Latin script, such as the Spanish Wordle, French Wordle, and German Wordle. However, for non-alphabetic languages like Chinese, a simple adaptation of the English Wordle's rules just won't work.

How To Execute JavaScript In Selenium PHP

Aggregated on: Fri Apr 22 2022 16:50:39 GMT+0000 (Coordinated Universal Time)

There are cases where test scenarios may fail unexpectedly with Selenium commands (e.g., click operation on the button web element does not result in a click even though the button is enabled). Such issues are more pertinent when creating an XHR request or when attempting to access another frame. For overcoming such issues, you can execute JavaScript in Selenium through the JavaScriptExecutor interface. Introduction to JavaScriptExecutor If locating or performing the required operations on the web elements does not work as expected with Selenium locators like XPath, Name, etc., the JavaScriptExecutor interface can be used to tackle the problem. JavaScriptExecutor is an interface that is available for all the languages that support the Selenium framework, including PHP.

How to Implement a Voice Changer Capability

Aggregated on: Fri Apr 22 2022 16:50:39 GMT+0000 (Coordinated Universal Time)

Research has shown that our voice is often an indicator of our personalities, and this is why we're so fascinated with changing our voice to make it sound more fun and uplifting in, for example, videos and live streams. As a mobile developer, I have implemented a voice changing function into my own app, which you can try out in my demo. This function allows users to mask their voice using seven preset voices: seasoned, cute, male, female, monster, cartoon, and robots.

Instancio: Random Test Data Generator for Java (Part 1)

Aggregated on: Fri Apr 22 2022 16:20:39 GMT+0000 (Coordinated Universal Time)

By now hopefully all of us, developers, have embraced unit testing. Good test coverage of our codebase, combined with that green checkmark after running the tests, gives us a warm fuzzy feeling that everything is in order. While we all like that warm fuzzy feeling, writing tests usually requires some plumbing. This is the "boring part", where you create your test objects and manually set them up with dummy data. Oftentimes the values themselves don't even matter. A typical example of this is testing "converter" logic. For example, we might be converting a JPA entity to a DTO, or a JAXB class to something else. Such a test might look something like this: Java @Test void verifyCustomer() { Customer customer = new Customer(); customer.setFirstName("John"); customer.setLastName("Doe"); customer.setAddress(new Address("123 Main St", "Seattle", "US")); customer.setPhoneNumbers(List.of( new Phone(PhoneType.HOME, "+1", "123-44-55"), new Phone(PhoneType.WORK, "+1", "555-77-88"))); // ... etc CustomerDTO customerDto = customerMapper.toDto(customer); assertThat(customerDto.getFirstName()).isEqualTo(customer.getFirstName()); assertThat(customerDto.getLastName()).isEqualTo(customer.getLastName()); // ... etc }

NLP Chatbot Resiliency: A Chat With Botpress

Aggregated on: Fri Apr 22 2022 16:05:39 GMT+0000 (Coordinated Universal Time)

In the race to design great conversational experiences, adaptable NLU models will play a key role in the creation of truly intelligent chatbots. In this article, learn how Botpress stemmed from frustrations with poorly designed bots that led to a launch of an open-source managed NLU platform. Also, see why the future of chatbot design will shift from an intents-based approach toward knowledge-based models that offer greater adaptability and resiliency. Developer Accessibility Key to NLP Chatbot Advancement Chatbots have come a long way over the years, evolving from simple command-response models to the more nuanced NLP conversational models of today.

Publish Keycloak Events to Kafka With a Custom SPI

Aggregated on: Fri Apr 22 2022 16:05:39 GMT+0000 (Coordinated Universal Time)

In this post, you will build a custom extension known as Service Provider Interfaces (SPI) for Keycloak. The purpose of this SPI is to listen to the Keycloak events and publish these events to an Apache Kafka cluster as a topic per event type. These events will be consumed by a Quarkus consumer client application which will store and expose the API end-points that can be used for analysis like login counts when client x was created etc. For the demo, I am limiting the event types to only two events: Client and Client login. but all event types can be analyzed. Event types:

XSS Prevention Cheatsheet

Aggregated on: Fri Apr 22 2022 15:50:39 GMT+0000 (Coordinated Universal Time)

XSS, or Cross-Site Scripting, is one of the most common vulnerabilities found in applications. In bug bounty programs of different organizations, XSS consistently ranks as the most common vulnerability found. Today, let’s learn how these attacks work, how they manifest in code, and how to prevent them in your programming language. Let’s dive right in! Anatomy of an XSS attack XSS happens whenever an attacker can execute malicious scripts on a victim’s browser.

How To Integrate Event Streaming Into Your Applications

Aggregated on: Fri Apr 22 2022 15:50:39 GMT+0000 (Coordinated Universal Time)

We created a sample react app for you to follow along and explore Fauna's event streaming feature. Clone the sample app repository to get started. Getting Started Head over to your terminal and run the following commands.

How to Use Shipa to Make Kubernetes Adoption Easier for Developers

Aggregated on: Fri Apr 22 2022 02:35:39 GMT+0000 (Coordinated Universal Time)

Kubernetes offers developers tremendous advantages… if they can overcome the platform’s inherent complexities. It can be a big "if." Without additional tooling, developers aren’t able to simply develop their applications on Kubernetes, but must also become experts in writing complex YAML templates to define Kubernetes resources. A relatively new tool called Shipa provides an application management framework that largely relieves developers of this burden, enabling dev teams to ship applications with no Kubernetes expertise required. Having recently put the tool to the test, this article will demonstrate how to install and utilize Shipa to simplify Kubernetes and ease some common developer frustrations.

ScyllaDB Cloud Using Node.js (Part 2): CRUD

Aggregated on: Fri Apr 22 2022 01:35:39 GMT+0000 (Coordinated Universal Time)

In the first part of this tutorial, I walked you through how to create a ScyllaDB cluster in the cloud and connect to the database using CQLSH and ScyllaDB Drivers. In part 2 here, we will explore how to create, read, update and delete data using NodeJS and ScyllaDB Cloud. You can also find the video series associated with this article on youtube.

Engineering Metrics Benchmarks: What Makes Elite Teams?

Aggregated on: Fri Apr 22 2022 00:50:39 GMT+0000 (Coordinated Universal Time)

DORA Metrics and Beyond In 2014 the DevOps Research and Assessment (DORA) team published their first State of DevOps report, identifying four metrics that can be used to measure engineering team performance. Six months ago the Data Science Team at LinearB decided to continue where DORA left off, digging deeper into the data than ever before. For the first time in history, engineering teams are able to benchmark their performance against data-backed industry standards.

Spring Boot: Nice and Easy [Video]

Aggregated on: Thu Apr 21 2022 23:05:38 GMT+0000 (Coordinated Universal Time)

Ever looked for a comprehensive intro to Spring Boot that is fun and entertaining at the same time? Then have a look at this brand-new episode of the "Marco Codes" YouTube channel: Spring Boot - Nice & Easy. In this video, we will build a tiny Google Photos-like clone with Spring Boot. Additionally, along the way, you'll learn plenty about Spring's Dependency Injection and MVC frameworks, Validation and File Handling, Spring Data and Databases, and you'll even deploy your application at the end.

What Is a Data Reliability Engineer, and Do You Really Need One?

Aggregated on: Thu Apr 21 2022 21:35:38 GMT+0000 (Coordinated Universal Time)

As software systems became increasingly complex in the late 2000s, merging development and operations (DevOps) was a no-brainer. One-half software engineer, one-half operations admin, and the DevOps professional are tasked with bridging the gap between building performant systems and making them secure, scalable, and accessible. It wasn’t an easy job, but someone had to do it.

Cloud Computing Architecture for Healthcare

Aggregated on: Thu Apr 21 2022 21:35:38 GMT+0000 (Coordinated Universal Time)

Due to the changing environment of technological innovations and its transition to cloud computing architecture, the demand for exploring its possibilities within various industries and markets emerges. It is a valuable tool for dealing with various operational, managerial, and research issues. Delivering such benefits, cloud computing architecture became a desirable target for diverse on-premises applications to switch from a traditional model. And the healthcare industry, with its online patient care, clinical applications, and medical records analysis, is not an exception. Continue reading to learn more about cloud computing, the several types of cloud computing services, and how healthcare SaaS platforms may help modern society. How Can Cloud Computing Architecture Initiate Beneficial Changes? Let’s take it from the top and define what cloud computing is. It refers to data centers accessible over the internet to many users and is spread across various locations from a centralized server. Cloud relates to providing computer system resources such as data storage and processing power at request. Its architecture enables robust and scalable computation-intensive capabilities through on-demand delivery and the pay-as-you-go model. So, what is so beneficial about cloud computing architecture? Would it be any different for your business if just the internal structure were changed?

JDBC Batch Processing - Introduction and Demo Using Statement and Preparedstatement

Aggregated on: Thu Apr 21 2022 21:05:38 GMT+0000 (Coordinated Universal Time)

In the video below, we take a closer look at JDBC batch processing, introduction, and demo using Statement and PreparedStatement. Let's get started!

How To Use a Python Variable in an External Javascript (Django)

Aggregated on: Thu Apr 21 2022 21:05:38 GMT+0000 (Coordinated Universal Time)

One way to use a Python variable in an external Javascript is to declare the JS variable in the HTML template through the context object, then pass this variable to the external script code : HTML <script type="text/javascript"> js_var_from_dj = "{{ django_var }}"; </script> <script src="https://dzone.com{% static "js/js_file.js" %}" type="text/javascript"></script> js_file.js :

How the MV Command Works on Linux

Aggregated on: Thu Apr 21 2022 20:35:38 GMT+0000 (Coordinated Universal Time)

The mv command, short for the move, lets us move files and directories between two locations on Linux and other Unix-like systems (i.e. MacOS). The syntax for mv can be found below, where [OPTIONS] are optional settings you can use, SOURCE is the single or multiple files/directories you want to move, and LOCATION is the location the file or directory should be moved to:

How To Move From Manual to Automation Testing

Aggregated on: Thu Apr 21 2022 20:35:38 GMT+0000 (Coordinated Universal Time)

With software requirements changing at lightning speed in an agile environment, more and more organizations look to inculcate more atomic development cycles for accelerating their Time To Market (TTM). A 2021 study by digital.ai has discovered that 86% of software development teams have adopted agile, up from 37%, a year ago. This shift to more agile software development methods has led to a simultaneous demand for more efficient means of software testing during the software is developed. Companies run the risk of suboptimal software delivery due to costly manual test case maintenance cycles as well as the lack of visibility these legacy processes bring to the table. A Statista study highlights that 32% of all Software projects fail due to the simple lack of time to test the product thoroughly.

Best Practices To Optimize Continuous Testing in DevOps

Aggregated on: Thu Apr 21 2022 18:50:38 GMT+0000 (Coordinated Universal Time)

As more and more organizations undergo digital transformations, we see a growing trend towards cloud storage, cloud computing, and strategizing testing on the cloud with a DevOps mindset. Continuous testing is an integral part of DevOps. The QA teams who use the best DevOps test strategy see the importance of faster software development and delivery as a competitive business differentiator. The development team aims to incorporate continuous testing into the development process so that the users can receive a high-quality product with great features without jeopardizing the software product’s reliability. The team can uncover flaws and errors far in advance by testing continually throughout the software development and delivery process, making it simple to address minor issues before they become large, unmanageable losses. For strategic continuous testing, a well-designed DevOps test automation strategy is essential. Continuous testing reduces the time it takes to complete tests. It saves the developer’s time while uncovering errors and is an important collaborative method that emphasizes good communication and coordination between teams to achieve the best results. The gap between development and testing can be bridged by providing timely feedback to developers.

Using CockroachDB CDC with Confluent Cloud Kafka and Schema Registry

Aggregated on: Thu Apr 21 2022 17:05:38 GMT+0000 (Coordinated Universal Time)

Previous Articles on CDC: SaaS Galore: Integrating CockroachDB with Confluent Kafka, FiveTran, and Snowflake CockroachDB CDC Using Minio as Cloud Storage Sink - Part 3 CockroachDB CDC Using Hadoop Ozone S3 Gateway as Cloud Storage Sink Motivation I was working on a demo requiring data to be serialized in Avro format. CockroachDB supports Avro for change data capture when used in conjunction with Confluent Schema Registry. We have documentation on CDC with Avro using a local Schema Registry, but what is missing is hosted Schema Registry on Confluent Cloud. We are going to address that in the short term but in the meantime, this tutorial should suffice. As of the time of this article, the hosted setup has nuances and I attempt to document it in the meantime.

Scalable JWT Token Revokation in Spring Boot

Aggregated on: Thu Apr 21 2022 16:35:38 GMT+0000 (Coordinated Universal Time)

With stateless JWT Tokens for security, short TTLs (1 min) can be used. These tokens are then refreshed during their time to live. If the server does not get to know when a user has logged out, a token of a logged-out user could continue to be refreshed. One solution for this problem will be shown here that keeps a lot of the horizontal scalability. Architecture

Getting Started With Low-Code Development

Aggregated on: Thu Apr 21 2022 15:50:38 GMT+0000 (Coordinated Universal Time)

Low-code platforms employ visual, declarative techniques instead of traditional lines of programming, are used by both developers and non-developers, and significantly reduce the time and effort to deliver applications and automated processes. Despite the definition, low code still means many things to different people as several tool types exist under this umbrella term: website generators, form builders, API connectors, database builders, workflow automation, and more. In this Refcard, we introduce low-code development, how it varies from "no-code development", primary use cases, platform usage, and key features.

How the AI Behind TikTok Works

Aggregated on: Thu Apr 21 2022 04:05:38 GMT+0000 (Coordinated Universal Time)

TikTok is a video-sharing app that let users create and share short videos. It impresses users with its personalized "just for you” recommendations precisely. It is highly addictive and very popular among Gen Z. Behind it, it is powered by artificial intelligence technologies. TikTok Architecture The architecture of the TikTok recommendation system includes three components: big data frameworks, machine learning, and microservices architecture.

How to Perform Chaos Testing in LoadRunner Using Gremlin

Aggregated on: Thu Apr 21 2022 04:05:38 GMT+0000 (Coordinated Universal Time)

Chaos testing is a subset of chaos engineering. Think of performance testing as a subset of performance engineering. Simply put, you break things on purpose and learn how you can make your systems reliable. Gremlin Integration with LoadRunner Professional 2022 To integrate Gremlin with LoadRunner Professional 2022, the following prerequisites are required:

How to Improve Your Wordpress' Website Security

Aggregated on: Thu Apr 21 2022 03:35:38 GMT+0000 (Coordinated Universal Time)

WordPress security has been an important topic ever since the content management system was released back in 2003. As with any highly popular piece of software with a long and rich history, the CMS can sometimes become the target of WordPress hackers. Hostile actions could include a cross-site scripting attack, sql injections, brute force attacks, and a number of other ways to gain unauthorized access. As hackers gain experience in finding new ways to exploit WordPress vulnerabilities, developers and security specialists get better at creating sites that are more difficult to breach. There are things developers and WordPress site owners can do if they don’t want hackers to gain access and bypass server security. In this article, we will discuss some actions a WordPress admin can perform to prevent a platform from becoming one of many hacked websites.

Three Ways to Import Data With Postgres

Aggregated on: Thu Apr 21 2022 03:35:38 GMT+0000 (Coordinated Universal Time)

What is a database without data? Postgres provides multiple options to import data from files. You can use the COPY command, restore from a backup, or load in a CSV with a SQL GUI tool. The fastest and easiest method will depend on your setup and how the data exists right now. Method 1: Using the COPY Command for Postgres The COPY command can import data to Postgres if access to text, CSV, or binary format data. For example, the COPY TO command outputs the content of a table to a file. You can also use the COPY FROM command to load the data from a file to the table. The file mentioned in the COPY command must be accessible by the Postgres user and should be specified from the perspective of the Postgres server.

How If-Else Logic works in Svelte

Aggregated on: Thu Apr 21 2022 03:35:38 GMT+0000 (Coordinated Universal Time)

Like other modern frameworks such as Vue and React, Svelte allows for logic within components. In this article, we'll look at how if and else statement logic works in Svelte outside of Javascript. Using If-Else Statements in Svelte Let's create a new component. Make a new file in your Svelte project in ./src/components called Component.svelte. Inside that component, add the following code:

How to Manage Distributed Applications in Kubernetes Using Cilium and Istio

Aggregated on: Thu Apr 21 2022 03:35:38 GMT+0000 (Coordinated Universal Time)

In this post, we’ll explore a few alternative approaches to using Kubernetes (K8s) to help you more easily manage distributed applications. Cloud Native Computing Foundation (CNCF) provides many different options for managing your distributed applications. And, there are many open-source projects out there that have come a long way in helping to alleviate some of the pain points for developers working in the cross-cloud, multi-cloud, and hybrid cloud scenarios.

Building an AutoML Application

Aggregated on: Wed Apr 20 2022 22:50:38 GMT+0000 (Coordinated Universal Time)

Machine learning (ML) has been developed and growing fast. It also depends on an expert in ML to develop the ML model, i.e. pre-processing, building model, feature engineering, tuning of hyper-parameters, etc. Data scientists have many demanding responsibilities, and challenges. These challenges include the selection of the best algorithm, modification of this algorithm over many iterations, and identification and tuning of the hyper-parameters many times. Despite going through difficult processes, it is worth noting to watch the ML model beat expected accuracy. There is the myth that the developers love to overdo the coding. Many steps that are performed by data scientists are repeatable and time-consuming which makes these steps ideal candidates for automation [1]. Figure 1

TypeScript Basics: How Generic Types Work

Aggregated on: Wed Apr 20 2022 20:05:38 GMT+0000 (Coordinated Universal Time)

Typescript generics are a way to take a function that has an argument that we can define when we call that argument - the same way we can change an argument of a function when we call it. If you're new to the concept of Typescript generics, then read on to learn how they work.

Visualizing Thread-Safe Singletons in Java

Aggregated on: Wed Apr 20 2022 16:50:38 GMT+0000 (Coordinated Universal Time)

Working in Java, we seldom have to create our handwritten singletons, for the existing frameworks like Spring creates these objects for us and maintains them. In enterprise applications, we get into framework disposal and let them create the singletons. But it is interesting to know the singleton pattern and visualize the famous pattern in a multi-threaded environment. In this article, I will dive deep into this pattern with a multi-threaded environment view.

What Is Test Monitoring and Test Control?

Aggregated on: Wed Apr 20 2022 02:35:37 GMT+0000 (Coordinated Universal Time)

Introduction In the field of app testing, QA managers and other senior testing professionals must implement different test management approaches such as test monitoring and control to ensure that the test suite runs smoothly. These essential management strategies are required by the managers to track and align the test progress for optimal accuracy and efficiency. What Is Test Monitoring? Test monitoring is a test execution process in which all testing activities and efforts are evaluated to: