Logging Stack Trace info within A Golang Application

You can use package below to log stack trace info of where the specific action was triggered. For instance, triggering a panic or logging a message.

Package

Usage

Output

#go #golang

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Logging Stack Trace info within A Golang Application
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
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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

Carmen  Grimes

Carmen Grimes

1595498460

Contact Tracing App: The Technology, Approach to fight COVID-19/Corona

As COVID-19 staggeringly lands blows to nations across the world, governments are considering ways to see their citizens through this pandemic. At the moment, a WHO situation report clocks the number of confirmed cases above two million along with more than one hundred thousand deaths. With vaccines dubbed as the best possible chance to tackle COVID-19 having no precise time frame of being ready, the talk is quickly shifting away to Contact Tracing Applications.

Contact tracing apps are digital solutions that use mobile technology to power the process of manual contact tracing. The apps follow a user’s movement, either by the use of Bluetooth technology, QR codes, or geo-location data while also tracking and keeping data from other user phones nearby. If one user gets diagnosed, the apps alert other users that they may have been exposed to the virus. As such, Contact Tracing Applications are being welcomed and perceived as an important approach to stem the spread of COVID-19 by providing a more accurate platform with data and information about affected individuals.

How Contact Tracing App Works

contact-tracing-app-devathon-

As mentioned above, contact tracing apps leverage mobile technology to trace cases of possible infection more accurately. But how exactly? Once installed and operative, the phone runs the app simultaneously with Bluetooth or location data to transmit signals with unique keys or IDs to phones in the designated range of connection. Similarly, the other phones with the app installed to detect and send back the signals.

For instance, if ‘Individual A’ has the app installed and goes outdoors to run some errands, they will interact with other individuals. In such a case, supposing all the other individuals had functional Contact Tracing Apps, each phone would exchange and store the contact data anonymously. It is important to note that the data collected only covers the app range distance to disregard irrelevant contacts and that their keys repeatedly change as individuals move. In any event that ‘Individual A’ tests positive for COVID-19 through confirmed tests, users who were previously within the proximity of ‘Individual A’ are alerted. Consequently, they are notified to check for symptoms, self-isolate, or get tested. Each time a person tests positive, the app notifies and advises the affected individuals.

In a nutshell, Contact Tracing Apps automate and supplement the traditional concept of tracing contacts to achieve extensive and realistic results in the least time possible.

What are the Benefits of Contact Tracing Apps?

Contract Tracing Apps are assets that offer indispensable solutions to health institutions and the public against COVID-19. There are several reasons why many governments are urging their citizens to use digital contact tracing apps to combat the spread of COVID-19. They include:

  1. The apps are more effective than manual tracing. While not perfect, their predictive algorithms frequently observe individuals detect new cases and analyze the probability one was infected. If one has contact with an asymptomatic individual, they are immediately notified and advised accordingly. Therefore, this saves time, energy, and resources that would have otherwise been overused.
  2. Contact tracing apps facilitate the relaxation of imposed restrictions or lockdowns. With a large number of infected people identified by the apps and put under surveillance, healthy citizens can be allowed to go about their duties. This may be a significant turning point to try and revive economies.
  3. Users’ private data is encrypted and secured. Even if you test positive, other users will only get notifications of possible infections. Your information is protected from both other users and developers of the app.
  4. They will increase the capacity to test and detect COVID-19 cases. With infected users alert, users who come in contact with affected persons come forward to be tested and treated with a higher recovery chance.

Future of Contact Tracing Apps?

Currently, the role of contact tracing apps is limited to accurately identifying infected individuals and their contacts as well as facilitating a quicker response to the Covid-19 threat.

Beyond that, the use of contact tracing apps is projected to take a different turn. One key area bound to change is how people’s privacy is handled. Tech institutions are under growing pressure to devise ways to develop privacy-preserving Contact Tracing Apps.

This will earn the users-trust, which is a pillar for these apps to help contain the disease. Technically, the technology will also have to improve drastically. The apps will have to seamlessly integrate with the user’s phone lifestyle causing minimal or no interference. With most applications having an open-source code, Artificial Intelligence, Beacon Technology, and Big Data solutions will be increasingly harnessed to power and improve them. The apps may also cut across various types of industries apart from health institutions.

How Can It Help to Trace COVID-19 and Reduce the Spread of the Virus?

contact-tracing-app-devathon-3

Contact Tracing Apps will effectively help stem lowering the cases of COVID-19. By using the apps, officials are able to monitor high-risk individuals easily. Also, should any new case arise, both users and health officials get notified they will swiftly act to trace, test, or isolate infected individuals.

Unlike traditional contact tracing, which may not get all contacts, these apps ensure that once Covid-19 cases are detected, they are all treated early, and those other individuals are not exposed to the infection. They also ward off users from high-risk areas. In the long run, they help break the COVID-19 chain by preventing further spread. Illustratively, an online publication by  CNBC states that more than 500,000 using a Singapore-registered mobile number downloaded the TraceTogether app within the first 24 hours of its launch. Subsequently, together with other government efforts, Singapore has since lowered the infection rate and eased restrictions.

If Contact Tracing Apps are implemented and used alongside other policies, we may as well be a few steps way to curbing this virus.

#android app #ios app #mobile app development #news #technology #contact tracing #contact tracing app #contact tracing app approach #contact tracing app technology #contact tracing coronavirus #contact tracing process #corona virus detecting app #corona virus tracing app #corona virus tracker #corona virus tracker live

Logging Stack Trace info within A Golang Application

You can use package below to log stack trace info of where the specific action was triggered. For instance, triggering a panic or logging a message.

Package

Usage

Output

#go #golang

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,

Best Mern Stack Development Company India & USA | Orion eSolutions

Bothe MEAN and MERN are full stack frameworks with Java coded components. The difference is that MEAN uses Angular JS while MERN uses the React JS developed by Facebook. Both aids developers to make reactive and intuitive UI. To understand which stack is the better one, we need to understand the underlying differences between them.

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DIFFERENCES BETWEEN MEAN AND MERN
MEAN: Components include Mongo DB, Angular JS, Express, and Node.
MERN: Components include Mongo DB, React JS, Express, and Node.
MEAN: JavaScript development stack.
MERN: Open source JavaScript library.
MEAN: Uses Typescript language.
MERN: Uses JavaScript and JSX.
MEAN: Copnent based architecture.
MERN: None.
MEAN: Regular DOM.
MERN: Virtual DOM.
MEAN: Steep learning curve.
MERN: Better documentation.
MEAN: Bidirectional data flow.
MERN: Unidirectional dataflow.
Both tech has high class features and immense functionality. The slight upper hand that MERN enjoys is in the learning curve. MERN is easier to grasp because the learning curve differs between Angular JS and React JS. Let us take a deeper dive into the benefits of MEAN and MERN stacks to understand the power of each of these stacks fully.

BENEFITS OF MEAN AND MERN
MEAN STACK
All types of applications can be developed easily.
Various plug ins and widgets have compatibility with this stack. For development that has a stricter time frame, this comes in handy.
The functionality skyrockets due to the availability of plug ins.
Developers enjoy community support since the framework is open source.
Real time testing is possible with the built-in tools.
A single language is used for back end and front end. This increases coordination and gets applications to respond faster.
MERN STACK
Front end and back end are covered by a single coding script.
The entire process can be completed using only JAVA and JSON.
Seamless development through the MVC architecture.
Real time testing through built-in tools.
Runs on an open source community and the source code can be easily modified.
According to Hacker Rank development skill report, 30% of developers went with Angular JS while 26% stayed with React JS. The report also mentions that 30% of the programmers wanted to learn React JS and 35.9% of developers prefer to develop using React JS, thus MERN stands slightly above MEAN when it comes to popularity.

As far as we know, in terms of ease of understanding and popularity, MERN is at the forefront now. Let us take a detailed comparison to understand who will win the race in 2021.

MEAN vs MERN : A DETAILED COMPARISON
Scalability, Security: Both MEAN and MERN are equally secure. However, in terms of scalability, MERN is at the forefront.

MVC: For enterprise level apps, a complete architecture needs to be maintained. MEAN is the better option for this.
UI: For an advanced and simple UI, MERN is the go-to stack. MERN facilitates user interaction.
CRUD: For CRUD (create, read, update, delete), MERN is the ideal stack. The React JS handles data changes quickly and has a good user interface as well.
Support: The Angular JS in MEAN supports HTTP calls and unites the back-end. Enterprise level app development will require third party.
libraries. On the other hand, React JS improves functionality through its supplementary libraries. MEAN scores slightly above in this section.
MEAN enhances the experience through the use of third party extensions while MERN would require additional configurations to do this.

In aspects of the learning curve, UI, scalability, and CRUD, MERN stack scores more than MEAN stack. However, in the aspects of community support and MVC MEAN stays ahead. In terms of security both are at par. However, the application of the stacks depend entirely on the business needs.

MEAN is more affordable, and is the first choice for startups and SMEs. Switching between clients and servers is easier. For real time web apps, MEAN is definitely the best choice. In MERN, the Virtual DOM enhances user experience and gets the developer’s work done faster. A stable code is maintained by React JS due to a unidirectional data flow. For coding for Android and IOS using JavaScript, MERN is definitely the way to go.

TAKE AWAY
Companies like Accenture, Raindrop, Vungle, Fiverr, UNIQLQ, and Sisense among others use MEAN in their tech stacks. Brands such as UberEats, Instagram, and Walmart use MERN stack. Both the stacks provide an incredible user experience. Stability and scalability can be achieved with both stacks.

From this we can conclude that enterprise level projects require MEAN over MERN. MERN makes rendering UI simpler. Both are reliable for a quick front end development.

MEAN is good for large scale application. MERN is good for faster development of smaller applications.

At Orion we have an excellent team that can help you with all your MEAN and MERN stack development needs.

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#full stack frameworks #mern stack development #mern stack development #mean stack application development #mean stack development services