Angular 14- Http Call with Retry

 

What is retry design pattern?

The retry pattern is a design pattern that can be used to handle errors and transient failures in a robust and fault-tolerant way. The basic idea behind the retry pattern is to automatically retry an operation in case of failure, with the hope that the operation will succeed on the next attempt.

The retry pattern typically involves the following steps:

• Attempt to perform the operation.
• If the operation fails, wait for a period of time before retrying.
• Retry the operation.
• If the operation still fails, increase the wait time before the next retry, or retry a fixed number of times before giving up.

The retry pattern can be implemented in various ways, such as using a loop with a fixed number of iterations or using a backoff algorithm that increases the wait time between retries exponentially.

The retry pattern can be useful in situations where the cause of the failure is transient, such as a temporary network outage or a temporary resource shortage. By retrying the operation, the system can automatically recover from these types of failures without the need for human intervention.

However, it's important to use the retry pattern carefully and with consideration to the specific use case. If a failure is likely to be permanent and not recoverable, retrying the operation will not be useful. Additionally, retrying too many times can cause additional load on the system and can also lead to an infinite loop

Here is an example of how you can retry an HTTP call in Angular 14 using the retryWhen operator from the rxjs library:

import { HttpClient } from '@angular/common/http';

import { retryWhen, delay, take } from 'rxjs/operators';

export class MyService {

  constructor(private http: HttpClient) {}

  getData() {

    return this.http.get('https://my-api.com/data').pipe(

      retryWhen(errors =>

        errors.pipe(

          delay(1000), // wait for 1 second before retrying

          take(5), // retry at most 5 times

          // if the error still persists after 5 retries, throw the error

          finalize(() => console.log("Retried 5 times, throwing error"))

        )

      )

    );

  }

}

In this example, the getData method makes a GET request to the specified URL and returns the response. The retryWhen operator is used to retry the request in case of an error. The errors observable passed to retryWhen emits an error event for each failed attempt. The errors observable is piped to delay operator which will wait for 1 second before retrying the request, take operator will retry the request at most 5 times, and finalize operator will log a message after retries are completed.

It is essential to set a maximum number of retries and a delay between retries to prevent an infinite loop of requests. In this example, we are retrying the request at most 5 times and waiting for 1 second between each retry. This helps avoid overwhelming the server with too many requests in a short time. Additionally, it is a good practice to log in or notify the user that the service is retrying the request, so they are aware of what is happening.

It is also important to note that retries should be used judiciously, as they may not always be the best solution for handling errors. In some cases, it may be better to handle the error and display a message to the user or take another action.

where to find part time software development work?

 

"Unleashing the power of part-time: Navigating the job market for software development opportunities. #parttimework #softwaredevelopment"

There are several places where you can find part-time software development work, here are a few options to consider:

Freelance websites: 

Websites like Upwork, Freelancer, and Fiverr connect businesses and individuals with freelance developers from all over the world. You can create a profile, showcase your skills and bid on relevant projects.

Job boards:

Websites like Indeed, LinkedIn, and Glassdoor, list part-time software development job openings. These can include both remote and in-person positions, and some of the bigger companies post their open positions on these job boards

Professional networks: 

Joining professional networks like LinkedIn can help you connect with other developers and potential employers. You can also join online groups related to software development, such as on LinkedIn or Facebook, where people post job listings and opportunities.

Contacting local companies directly:

Many local companies may have part-time or project-based positions that they haven't advertised publicly. You can reach out to them directly and inquire about any available opportunities.

Consultancy or contracting: 

You can also look for opportunities in consulting or contracting companies. They often take on projects from other companies and could use additional developers on a part-time basis.

Internship programs: 

some companies offer internships for students, this could be a good way to get your foot in the door and gain experience and potentially turn into a part-time or full-time job.

How to get part-time software development work from LinkedIn?

It's important to note that competition for part-time software development work can be high, so be prepared to market your skills and qualifications effectively to potential employers. Building a strong portfolio or Github page can also be beneficial.

LinkedIn is a great platform for finding part-time software development work, here are a few strategies you can use to increase your chances of success:

Optimize your LinkedIn profile: Make sure your profile is complete, up-to-date, and includes a clear summary of your skills and experience. Include any relevant software development certifications or education you have, as well as links to your portfolio or GitHub page if you have one.

• Network: Connect with other software developers and professionals in your field, join groups related to software development, and participate in discussions. This can help you build your professional network and increase your visibility to potential employers.

• Apply for relevant jobs: Search for part-time software development jobs on LinkedIn and apply for ones that match your skills and experience. You can also use the LinkedIn job search filters to narrow your search by location, experience level, and job type.

• Use keywords effectively: Use relevant keywords in your profile and job applications, so that potential employers can find you when they search for candidates. Be sure to include keywords related to the specific skills and technologies you have experience with.

• Showcase your work: Include links to any software development projects you've worked on in the past, or create a portfolio on LinkedIn to showcase your work.

• Make use of LinkedIn Learning: LinkedIn Learning provides a variety of courses and tutorials, it is a great way to learn new skills and keep your knowledge up-to-date, which will increase your chances of finding a job.

• Reach out to recruiters and hiring managers: You can search for recruiters and hiring managers on LinkedIn who work for companies that interest you and reach out to them directly. You can also use LinkedIn's messaging feature to send personalized messages to potential employers.

Keep in mind that finding part-time work as a software developer on LinkedIn or any platform can take time, but with persistence and a strong online presence, you can increase your chances of success.

how to earn millions of dollars, in an easy way?

The Best Ways To Make $1 Million Dollars

Earning a large sum of money, such as a million dollars, is not typically easy or quick. It often requires a combination of hard work, dedication, and a bit of luck.

Here are a few potential paths to earning a significant amount of money:

Starting a successful business

Building and scaling a successful business can be a long and challenging process, but it can also be a way to earn a significant amount of money. It will require a lot of effort, a good business plan, and knowledge of your field, as well as the ability to take risks and make tough decisions.

Investing in stocks, real estate, or other assets

 Investing in assets that appreciate in value over time can be a way to build wealth, but it also involves a significant amount of risk. It's essential to have knowledge and skills and to consult with a financial advisor or professional before making any investment decisions.

Pursuing a high-paying career

Some careers, such as in finance, law, medicine, or technology can offer high earning potential, however, these fields often require extensive education and training and a strong work ethic.

Starting a passive income stream

Creating a product or service that generates recurring income, such as renting out a property, investing in dividend stocks, or creating a successful digital product.

Earning a significant amount of money through cryptocurrency investments

It can be possible, but it also carries a high degree of risk. The value of cryptocurrencies can be highly volatile, and it's possible to lose a significant amount of money just as quickly as you can earn it. Here are a few strategies that you might consider when investing in cryptocurrency:

• Invest in a diverse portfolio of different cryptocurrencies: By spreading your investments across multiple coins, you can potentially reduce your risk.
• Research and due diligence: Before investing in any cryptocurrency, be sure to do your own research and due diligence. Look into the technology behind the cryptocurrency, the team behind it, the adoption, and the potential use cases.
• Long-term holding: Some investors believe in "HODLing" - holding onto their cryptocurrency for the long-term, in the belief that it will increase in value over time. This can be a risky strategy, but it can also potentially lead to significant returns if the value of the cryptocurrency increases.
• Be aware of the market trends and be prepared to sell: Keep an eye on the market trends and be prepared to sell your investments if necessary, you need to be prepared to act quickly if you see the market turning against your investments.
• Avoid hype-driven investments: Be aware of the hype and news, some projects have no real use-case, no real adoption, and no real technology behind them, avoid these projects.

It's important to keep in mind that investing in cryptocurrency carries inherent risks, and you should never invest more than you can afford to lose. It's also a good idea to consult with a financial advisor or professional before making any investment decisions. And please, be always aware of the risks.

It's worth remembering that there is no such thing as easy money and most paths to earning a significant amount of money will require hard work, dedication, and a bit of luck. It's important to set realistic goals and be prepared to put in the effort to achieve them.

how to become millionaire in crypto

 

Maximizing profits and minimizing risk in the volatile world of cryptocurrency investing

It's important to be cautious when considering ways to become a millionaire through cryptocurrency investing. While it is possible to make a lot of money in the cryptocurrency market, it is also highly risky and volatile. Many people have lost significant amounts of money due to market fluctuations, hacking, and fraud.

That being said, here are a few things to consider if you want to try and become a millionaire through cryptocurrency investing:

Educate yourself

Before investing any money, it's important to thoroughly research and understand the cryptocurrency market and the specific coins you are interested in. This will help you make informed investment decisions and reduce the risk of losses.

Diversify your investments

Don't put all your eggs in one basket. Consider investing in a variety of different cryptocurrencies, rather than just one. This will help to spread the risk and increase your chances of making a profit.

Have a long-term investment horizon:

It's important to be patient when investing in cryptocurrency. Don't expect to see immediate returns, and be prepared to hold onto your investments for the long term.

Manage your risk 

The cryptocurrency market can be highly volatile, so it's important to manage your risk carefully. This may include setting stop-loss orders, diversifying your investments, and only investing an amount that you can afford to lose.

Remember, it's important to be realistic about your goals and not to get caught up in the hype. It's also a good idea to consult with a financial advisor before making any significant investments.

how to find a 100x crypto coin?

How do I find my next big crypto?

It's important to be cautious when looking for cryptocurrencies that have the potential to increase significantly in value, as these investments are highly speculative and carry a high level of risk. There is no way to accurately predict which cryptocurrencies will perform well in the future, and many coins that have experienced significant price increases in the past have later declined in value.

That being said, if you are interested in finding cryptocurrencies that have the potential for significant price increases, here are a few things to consider:

1. Research the technology behind the coin - Look for cryptocurrencies that have strong and innovative technology, such as a new consensus algorithm or a unique use case.
2. Consider the team behind the project - Look for cryptocurrencies with a strong and experienced team, as well as a solid development roadmap.
3. Look for coins with strong adoption and demand - Consider cryptocurrencies that are already being used by a significant number of people or companies, as these coins may have a higher likelihood of long-term success.
4. Evaluate the market potential - Look for cryptocurrencies that have the potential to solve real-world problems or meet a significant demand in the market.

It's important to remember that investing in cryptocurrency carries significant risk, and you should never invest more than you can afford to lose. It's also a good idea to diversify your investments and not to put all your eggs in one basket. It's also a good idea to consult with a financial advisor before making any significant investments. 

How to make money by cryptocurrency - 2023?

How to make money by cryptocurrency?

There are many methods to profit from the cryptocurrency market, but it's crucial to keep in mind that these investments come with a high level of risk due to the market's extreme volatility. Here are some options to think about:

Buy and hold: 

Purchasing a coin that you think will gain value over time and holding onto it for an extended length of time is one strategy to profit from cryptocurrencies. This approach commonly referred to as "HODL," calls for persistence and a lengthy investment horizon.

Trading:

 Actively trading coins on exchanges is another approach to earning money using cryptocurrencies. This can be a riskier tactic because it entails purchasing and selling coins in an effort to benefit from price swings. Trading calls for a solid risk management strategy and a solid comprehension of technical analysis.

Mining:

Specific hardware can be used to mine some coins, including Bitcoin. You take part in the process of transaction verification and blockchain addition when you mine a currency. A little portion of the coin the miner is mining is given to them as compensation. However, mining can be expensive and expensive equipment and electricity are needed.

Gaining interest

A few cryptocurrency exchanges, such as ByBit , Kucoin and Binance, let you gain interest in your investments. The interest rates on these platforms are often greater than those of traditional banks, but before using them, you should carefully review and evaluate the terms and conditions.

Always exercise caution while making bitcoin investments, and never risk more than you can afford to lose. Additionally, it is wise to spread out your investments rather than putting all your eggs in one basket.

Microsoft Software Engineer Interview Questions

Microsoft is a leading technology company, and as such, the interview process for a software engineer position at Microsoft is likely to be quite competitive. Here are a few examples of questions that you might be asked during a Microsoft software engineer interview:

How do you approach debugging a problem in your code?

• Can you describe a time when you had to optimize a slow piece of code? How did you go about doing it?
• How do you keep your technical skills current?
• Can you describe a project that you worked on where you had to learn a new technology or programming language?
• How do you handle working on a team where there are differing opinions on the best way to solve a problem?
• Can you describe a time when you had to work on a tight deadline? How did you manage your time and priorities?
• How do you approach testing your code?
• Can you describe a difficult coding problem that you solved and how you went about solving it?
• How do you handle working with large codebases?
• Can you describe a time when you had to refactor a large piece of code? How did you approach the task and what was the outcome?

It's important to be prepared to discuss your technical skills and experience in-depth, as well as your problem-solving abilities and approach to teamwork. You should also be prepared to discuss any projects you've worked on in the past, and how you approached them.

Best investing strategy in crypto

 Investing in cryptocurrency can be a high-risk, high-reward endeavor. Here are a few strategies that you might consider when investing in cryptocurrency:

• Diversification: Don't put all your eggs in one basket. Consider investing in a diverse portfolio of different cryptocurrencies to spread out your risk.

• Dollar-cost averaging: Rather than investing a large sum all at once, try investing a fixed amount at regular intervals (e.g. monthly). This can help to average out the price at which you buy in, potentially reducing the impact of short-term price fluctuations.

• Long-term holding: Some investors believe in "HODLing" - holding onto their cryptocurrency for the long-term, in the belief that it will increase in value over time. This can be a risky strategy, but it can also potentially lead to significant returns if the value of the cryptocurrency increases.

• Research and due diligence: Before investing in any cryptocurrency, be sure to do your own research and due diligence. Look into the technology behind the cryptocurrency, the team behind it, and the potential use cases. This can help you make an informed decision about whether it's a good investment for you.

It's important to keep in mind that investing in cryptocurrency carries inherent risks, and you should never invest more than you can afford to lose. It's also a good idea to consult with a financial advisor or professional before making any investment decisions.

What are software development best practices?

Ensuring quality and efficiency in every line of code. #bestpractices #softwareengineering

There are many best practices that can be followed in software development in order to produce high-quality software that is maintainable, reliable, and easy to understand. Here are a few examples:

Write clean, readable, and well-documented code: Use clear and descriptive names for variables and functions, and include comments in your code to explain how it works.

Use version control: Version control systems like Git allow you to track changes to your code, roll back to previous versions, and collaborate with other developers.

Follow a style guide: A style guide is a set of standards for formatting and organizing code. Adhering to a style guide helps to ensure that your code is easy to read and understand.

Write automated tests: Automated tests allow you to verify that your code is working correctly and catch bugs early on in the development process.

Use design patterns: Design patterns are tried-and-true solutions to common software design problems. Using design patterns can help you write more flexible and maintainable code.

Refactor your code regularly: As your codebase grows and evolves, it's important to periodically refactor your code to remove duplication, improve the structure, and make it easier to understand.

Follow agile development methodologies: Agile development methodologies, such as Scrum, emphasize iterative development, collaboration, and flexibility. Using an agile approach can help you deliver high-quality software faster.

Improve Image Quality with C#

How to increase the resolution of an image in C#?

 Improving the resolution of an image, also known as upscaling or resampling, can be challenging as it involves adding new pixels to the image, which can lead to a loss of quality if not done carefully. 

Here is a simple C# program that uses the System.Drawing.Graphics class to upscale an image:

using System;

using System.IO;

using System.Drawing;

namespace ImageResizer

{

    class Program

    {

        static void Main(string[] args)

        {

            string filePath = "C:/path/to/image.jpg";

            int newWidth = 1200;

            int newHeight = 900;

            // Load the image from file

            Image originalImage = Image.FromFile(filePath);

            // Create a new bitmap with the new size

            Bitmap resizedImage = new Bitmap(newWidth, newHeight);

            // Set the interpolation mode to high quality

            resizedImage.SetResolution(originalImage.HorizontalResolution, originalImage.VerticalResolution);

            Graphics g = Graphics.FromImage(resizedImage);

            g.InterpolationMode = InterpolationMode.HighQualityBicubic;

            // Draw the original image onto the bitmap with the new size

            g.DrawImage(originalImage, 0, 0, newWidth, newHeight);

            // Save the resized image to a new file

            resizedImage.Save("C:/path/to/resized_image.jpg");

        }

    }

}

This program loads an image from a file, creates a new bitmap with the specified width and height, and sets the interpolation mode to high quality. The original image is then drawn onto the bitmap with the new size using the high-quality interpolation mode. Finally, the resized image is saved to a new file.

Using a high-quality interpolation mode, such as InterpolationMode.HighQualityBicubic, can help to reduce the loss of quality when upscaling an image. However, it's important to remember that upscaling an image will always involve some loss of quality, and the resulting image may not be as clear or detailed as the original.

How to compress image size without losing quality in C#?

Reduce Image size C# 

Here is a simple C# program that can be used to minimize the size of an image:

using System;

using System.IO;

using System.Drawing;

namespace ImageResizer

{

    class Program

    {

        static void Main(string[] args)

        {

            string filePath = "C:/path/to/myimage.jpg";

            int newWidth = 640;

            int newHeight = 480;

            // Load the image from file

            Image originalImage = Image.FromFile(filePath);

            // Calculate the new size of the image

            Size newSize = GetNewSize(originalImage.Width, originalImage.Height, newWidth, newHeight);

            // Create a new bitmap with the new size

            Bitmap resizedImage = new Bitmap(newSize.Width, newSize.Height);

            // Draw the original image onto the bitmap with the new size

            using (Graphics g = Graphics.FromImage(resizedImage))

            {

                g.DrawImage(originalImage, 0, 0, newSize.Width, newSize.Height);

            }

            // Save the resized image to a new file

            resizedImage.Save("C:/path/to/resized_image.jpg");

        }

        static Size GetNewSize(int originalWidth, int originalHeight, int newWidth, int newHeight)

        {

            int finalWidth;

            int finalHeight;

            // Calculate the new width and height based on the aspect ratio

            if (originalWidth > originalHeight)

            {

                finalWidth = newWidth;

                finalHeight = (int)(originalHeight * ((float)newWidth / (float)originalWidth));

            }

            else

            {

                finalWidth = (int)(originalWidth * ((float)newHeight / (float)originalHeight));

                finalHeight = newHeight;

            }

            return new Size(finalWidth, finalHeight);

        }

    }

}

 This program loads an image from a file, calculates a new size for the image based on the specified width and height, creates a new bitmap with the new size, and draws the original image onto the bitmap. The resized image is then saved to a new file.

The GetNewSize function is used to calculate the new size of the image based on the aspect ratio of the original image so that the resulting image is not distorted.