张 小龙

1637910096

Create a Go Serverless Application with Serverless-Stack

Welcome Gophers, in this video, we'll be blasting through the creation of a serverless Go application in 5 minutes using serverless-stack - https://serverless-stack.com/ 

Go (also called Golang or Go language) is an open source programming language used for general purpose. Go was developed by Google engineers to create dependable and efficient software. Most similarly modeled after C, Go is statically typed and explicit.

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#go #golang 

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Create a Go Serverless Application with Serverless-Stack

Serverless Applications - Pros and Cons to Help Businesses Decide - Prismetric

In the past few years, especially after Amazon Web Services (AWS) introduced its Lambda platform, serverless architecture became the business realm’s buzzword. The increasing popularity of serverless applications saw market leaders like Netflix, Airbnb, Nike, etc., adopting the serverless architecture to handle their backend functions better. Moreover, serverless architecture’s market size is expected to reach a whopping $9.17 billion by the year 2023.

Global_Serverless_Architecture_Market_2019-2023

Why use serverless computing?
As a business it is best to approach a professional mobile app development company to build apps that are deployed on various servers; nevertheless, businesses should understand that the benefits of the serverless applications lie in the possibility it promises ideal business implementations and not in the hype created by cloud vendors. With the serverless architecture, the developers can easily code arbitrary codes on-demand without worrying about the underlying hardware.

But as is the case with all game-changing trends, many businesses opt for serverless applications just for the sake of being up-to-date with their peers without thinking about the actual need of their business.

The serverless applications work well with stateless use cases, the cases which execute cleanly and give the next operation in a sequence. On the other hand, the serverless architecture is not fit for predictable applications where there is a lot of reading and writing in the backend system.

Another benefit of working with the serverless software architecture is that the third-party service provider will charge based on the total number of requests. As the number of requests increases, the charge is bound to increase, but then it will cost significantly less than a dedicated IT infrastructure.

Defining serverless software architecture
In serverless software architecture, the application logic is implemented in an environment where operating systems, servers, or virtual machines are not visible. Although where the application logic is executed is running on any operating system which uses physical servers. But the difference here is that managing the infrastructure is the soul of the service provider and the mobile app developer focuses only on writing the codes.

There are two different approaches when it comes to serverless applications. They are

Backend as a service (BaaS)
Function as a service (FaaS)

  1. Backend as a service (BaaS)
    The basic required functionality of the growing number of third party services is to provide server-side logic and maintain their internal state. This requirement has led to applications that do not have server-side logic or any application-specific logic. Thus they depend on third-party services for everything.

Moreover, other examples of third-party services are Autho, AWS Cognito (authentication as a service), Amazon Kinesis, Keen IO (analytics as a service), and many more.

  1. Function as a Service (FaaS)
    FaaS is the modern alternative to traditional architecture when the application still requires server-side logic. With Function as a Service, the developer can focus on implementing stateless functions triggered by events and can communicate efficiently with the external world.

FaaS serverless architecture is majorly used with microservices architecture as it renders everything to the organization. AWS Lambda, Google Cloud functions, etc., are some of the examples of FaaS implementation.

Pros of Serverless applications
There are specific ways in which serverless applications can redefine the way business is done in the modern age and has some distinct advantages over the traditional could platforms. Here are a few –

🔹 Highly Scalable
The flexible nature of the serverless architecture makes it ideal for scaling the applications. The serverless application’s benefit is that it allows the vendor to run each of the functions in separate containers, allowing optimizing them automatically and effectively. Moreover, unlike in the traditional cloud, one doesn’t need to purchase a certain number of resources in serverless applications and can be as flexible as possible.

🔹 Cost-Effective
As the organizations don’t need to spend hundreds and thousands of dollars on hardware, they don’t need to pay anything to the engineers to maintain the hardware. The serverless application’s pricing model is execution based as the organization is charged according to the executions they have made.

The company that uses the serverless applications is allotted a specific amount of time, and the pricing of the execution depends on the memory required. Different types of costs like presence detection, access authorization, image processing, etc., associated with a physical or virtual server is completely eliminated with the serverless applications.

🔹 Focuses on user experience
As the companies don’t always think about maintaining the servers, it allows them to focus on more productive things like developing and improving customer service features. A recent survey says that about 56% of the users are either using or planning to use the serverless applications in the coming six months.

Moreover, as the companies would save money with serverless apps as they don’t have to maintain any hardware system, it can be then utilized to enhance the level of customer service and features of the apps.

🔹 Ease of migration
It is easy to get started with serverless applications by porting individual features and operate them as on-demand events. For example, in a CMS, a video plugin requires transcoding video for different formats and bitrates. If the organization wished to do this with a WordPress server, it might not be a good fit as it would require resources dedicated to serving pages rather than encoding the video.

Moreover, the benefits of serverless applications can be used optimally to handle metadata encoding and creation. Similarly, serverless apps can be used in other plugins that are often prone to critical vulnerabilities.

Cons of serverless applications
Despite having some clear benefits, serverless applications are not specific for every single use case. We have listed the top things that an organization should keep in mind while opting for serverless applications.

🔹 Complete dependence on third-party vendor
In the realm of serverless applications, the third-party vendor is the king, and the organizations have no options but to play according to their rules. For example, if an application is set in Lambda, it is not easy to port it into Azure. The same is the case for coding languages. In present times, only Python developers and Node.js developers have the luxury to choose between existing serverless options.

Therefore, if you are planning to consider serverless applications for your next project, make sure that your vendor has everything needed to complete the project.

🔹 Challenges in debugging with traditional tools
It isn’t easy to perform debugging, especially for large enterprise applications that include various individual functions. Serverless applications use traditional tools and thus provide no option to attach a debugger in the public cloud. The organization can either do the debugging process locally or use logging for the same purpose. In addition to this, the DevOps tools in the serverless application do not support the idea of quickly deploying small bits of codes into running applications.

#serverless-application #serverless #serverless-computing #serverless-architeture #serverless-application-prosand-cons

Hertha  Mayer

Hertha Mayer

1595334123

Authentication In MEAN Stack - A Quick Guide

I consider myself an active StackOverflow user, despite my activity tends to vary depending on my daily workload. I enjoy answering questions with angular tag and I always try to create some working example to prove correctness of my answers.

To create angular demo I usually use either plunker or stackblitz or even jsfiddle. I like all of them but when I run into some errors I want to have a little bit more usable tool to undestand what’s going on.

Many people who ask questions on stackoverflow don’t want to isolate the problem and prepare minimal reproduction so they usually post all code to their questions on SO. They also tend to be not accurate and make a lot of mistakes in template syntax. To not waste a lot of time investigating where the error comes from I tried to create a tool that will help me to quickly find what causes the problem.

Angular demo runner
Online angular editor for building demo.
ng-run.com
<>

Let me show what I mean…

Template parser errors#

There are template parser errors that can be easy catched by stackblitz

It gives me some information but I want the error to be highlighted

#mean stack #angular 6 passport authentication #authentication in mean stack #full stack authentication #mean stack example application #mean stack login and registration angular 8 #mean stack login and registration angular 9 #mean stack tutorial #mean stack tutorial 2019 #passport.js

Fannie  Zemlak

Fannie Zemlak

1599854400

What's new in the go 1.15

Go announced Go 1.15 version on 11 Aug 2020. Highlighted updates and features include Substantial improvements to the Go linker, Improved allocation for small objects at high core counts, X.509 CommonName deprecation, GOPROXY supports skipping proxies that return errors, New embedded tzdata package, Several Core Library improvements and more.

As Go promise for maintaining backward compatibility. After upgrading to the latest Go 1.15 version, almost all existing Golang applications or programs continue to compile and run as older Golang version.

#go #golang #go 1.15 #go features #go improvement #go package #go new features

saloni shah

saloni shah

1607667485

Top6 Advantages of MEAN Stack for Web App Development

Last decade has seen introduction of lot of new software development framework and technologies. The purpose behind creating these frameworks is to serve the need of growing demand for web and mobile applications around the world.MEAN stack is one of these latest tools for web based software development.

What is Mean stack?
MEAN Stack development is basically a composition for MongoDB, Express js, angular.js and node.js. MEAN stack some time uses react.js and to form MERN stack.Let’s look at each component in more details.

Mongo DB: MongoDB is an open-source NoSQL database that will hold all of the application’s data. It allows developers to quickly change the structure of the data is persisted. Here it relies on an architecture that comprises of collection & documents and not table & rows.

Express JS: It is used to create web application easily. Also provides a slight simplification for creating a request to developer procedure. This way it gets easier to write modules, secure & fast applications.

Angular.Js: A Client-side framework, often referred to as simply Angular, it has, in fact, become a ‘default’ web front-end JavaScript formwork. Angular Js allows the client to seamlessly send and receive JSON documents.

Node.js: This java Script-based runtime is built on the version 8 engine by chrome. With a compilation of JavaScript source code to the machine code prior to execution, high-performing and scalable web applications are built by the developers.Experss is used to create a Restful API server. To connect mango dB and app server, the node.js driver is been used.
Benefits of MEAN Stack Development
Server and Client switch was never this easy
JavaScript is very popular and powerfuland it allows you to switch seamlessly between client-side and server-side. There will be no need for a third-party standalone server like Apache for deploying the app. The Node.js technology allows the developer to open the application on the server.

Multipurpose and Flexible
MEAN stack is truly wonderful and offers greater flexibility with development to developers. The framework allows for easy testing of the app on the cloud platform upon completing the development process. The development, testing and introduction into the cloud processes are done seamlessly. Any additional information can also be incorporated into the app by simply adding an extra filed on to the form. The technology responsible for this feature is MongoDB which, because it is specifically tailored for the cloud, offers automatic replication and full cluster support.

Build MVP quickly
MVP stands for a minimum viable product. It comprises to the app developed with the most basic and essential features. This set of features are the bare minimum of what users are searching for in a product. Being able to develop an MVP in the shortest time possible is critical for cutting costs as well as testing the product in the market. The MEAN stack makes it possible to create an MVP quickly because the framework offers fast development.

MEAN / MERN allows Isomorphic coding possible
There are two major OS platforms on which mobile operators, namely: iOS and Android. Anyone interested in creating an app for both platforms needs to do a separate project for each. But with the MEAN / MERN stack, this is not necessary. Apps developed using MEAN /MERN are isomorphic, meaning that they can work on multiple platforms without having to change the base code. Thus, the developer’s work is cut in half and more time is spent on enhancing the app already created. Businesses aiming to reach a wider market segment will therefore benefit from using the stack.

Ease in Development with Single Programming Language
MEAN the technologies based on JavaScript. The working environment for developers is thus enhanced, ensuring that they come up with products that will draw the attention of the users by everything that happens in one language. Single programming language also means that the backend response unit will be in a position to handle client requests quickly and efficiently as the program grows with time.

Responsive and Time-saving
If you need to develop an application with limited timelines, use MEAN stack to achieve that. It has infinite module libraries for node Js, which are ready for use. As a result this aspect saves your time and initially used to create modules from scratch. It also has an automated testing feature that instantly notifies you when a particular feature is broken. It gives you more time to polish your project to perfection.
Some of the benefits outlined above are just a little of what the company stands to gain in incorporating the MEAN stack in their app development projects. Enhanced app quality, reduced costs, and time for app development and also which to save time and money, or are just interested in managing a business.

DasinfomdiaPvt.Ltd. offer MEAN stack development services to produce adaptable, versatile web and mobile applications, which utilize JavaScript, on both client and server-side. We provide customer-centric Hire MEAN Stack Development Services.Our MEAN stack export is exceptional when it comes to MEAN stack technology and possess years of experience.

#full-stack application development #full-stack web application, #full-stack web application development #web-development #hire dedicated mean stack developers, #hire frontend developers,

张 小龙

1637910096

Create a Go Serverless Application with Serverless-Stack

Welcome Gophers, in this video, we'll be blasting through the creation of a serverless Go application in 5 minutes using serverless-stack - https://serverless-stack.com/ 

Go (also called Golang or Go language) is an open source programming language used for general purpose. Go was developed by Google engineers to create dependable and efficient software. Most similarly modeled after C, Go is statically typed and explicit.

Subscribe: https://www.youtube.com/c/Tutorialedge/featured 

#go #golang