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Création de code de transaction de compensation pour Saga Participant

Création de code de transaction de compensation pour Saga Participant

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La création d’un code de transaction de compensation pour les participants à Saga est une étape importante pour assurer une expérience de jeu équitable et sécurisée.

La saga Pattern est utilisée pour fournir une intégrité des données entre plusieurs services et le faire pour des transactions potentiellement à long terme. Il existe de nombreux blogs, superficiels car ils tendent à l’être, sur les sagas et les transactions à long terme. Dans cet article, je ne rentrerai pas dans les détails en comparant les avantages et les inconvénients des sagas avec le protocole XA deux phases (2PC), le verrouillage distribué, etc., et je dirai simplement que XA et 2PC nécessitent des verrous distribués (inconvénient) qui gèrent les propriétés ACID de sorte que l’utilisateur puisse simplement exécuter un rollback ou un commit (avantage) alors que les sagas n’utilisent que des transactions locales et n’ont donc pas besoin de verrous distribués (avantage) mais nécessitent que l’utilisateur implémente la logique de compensation, etc. (inconvénient). Comme l’a dit Teddy Roosevelt, «Rien de bon ne vient facilement».

Ce que je ferai, c’est montrer un exemple de code complet d’une application microservices impliquant une saga, y compris la logique de compensation des participants, qui peut être trouvée dans ce dépôt.

La saga pattern est utilisée pour assurer l’intégrité des données entre plusieurs services et pour effectuer des transactions de longue durée. Il existe de nombreux blogs, superficiels, sur les sagas et les transactions de longue durée. Dans cet article, je ne vais pas entrer dans les détails en comparant les avantages et les inconvénients des sagas avec le protocole XA à deux phases (2PC), le verrouillage distribué, etc., et je dirai simplement que XA et 2PC nécessitent des verrous distribués (inconvénient) qui gèrent les propriétés ACID de sorte que l’utilisateur puisse simplement exécuter un rollback ou un commit (avantage), alors que les sagas n’utilisent que des transactions locales et ne nécessitent donc pas de verrous distribués (avantage) mais nécessitent que l’utilisateur implémente la logique de compensation, etc. (inconvénient). Comme l’a dit Teddy Roosevelt : «Rien de bien ne vient facilement».

Ce que je vais faire, c’est montrer un exemple de code complet d’une application microservices impliquant une saga, y compris la logique de compensation des participants, qui peut être trouvée dans ce dépôt.

L’utilisation des sagas pour gérer les transactions de longue durée est une pratique courante dans le développement d’applications microservices. Les sagas sont un moyen efficace de garantir l’intégrité des données entre plusieurs services et de gérer les transactions à long terme. Les sagas sont une bonne alternative aux protocoles XA à deux phases (2PC) et au verrouillage distribué car elles n’utilisent que des transactions locales et ne nécessitent pas de verrous distribués. Cependant, elles nécessitent que l’utilisateur implémente la logique de compensation, etc., ce qui peut être complexe et prendre du temps.

Les sagas sont une excellente solution pour gérer les transactions à long terme car elles offrent une grande flexibilité et une bonne gestion des données. Les sagas sont particulièrement utiles pour les applications qui impliquent plusieurs services car elles peuvent garantir la cohérence des données entre ces services. De plus, les sagas peuvent être facilement mises en œuvre dans un environnement microservices car elles peuvent être facilement intégrées aux services existants. Enfin, les sagas peuvent être facilement mises à jour pour prendre en charge les changements dans le système et ainsi garantir la cohérence des données.

Les sagas sont un outil puissant pour garantir l’intégrité des données entre plusieurs services et pour gérer les transactions à long terme. Bien qu’elles nécessitent une implémentation complexe et prennent du temps, elles offrent une grande flexibilité et une bonne gestion des données. Elles peuvent également être facilement intégrées aux services existants et mises à jour pour prendre en charge les changements dans le système. Les sagas sont donc un excellent outil pour garantir la cohérence des données entre plusieurs services et pour gérer les transactions à long terme.

Source de l’article sur DZONE

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10 Questions You Must Ask Before Hiring a Web Design Agency

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Finding a good web design agency is challenging, especially if you’re doing it for the first time. With so many options, it’s challenging to determine which best meets your needs.

The obvious place to start looking for a web design agency is by asking friends, family, and colleagues for personal recommendations, but bear in mind that they may not be qualified to judge your options objectively, and you’ll need to carry out due diligence on any web design agency recommended to you.

The process of researching and evaluating different design agencies can be time-consuming and complex. To make it easier, you must start with a clear understanding of your goals and expectations.

Begin by making a long list of web design agencies and freelance designers that might fit the bill. Then whittle it down to a shortlist by discounting anyone whose portfolio you don’t like — while design is about more than just subjective opinions, it’s also vital that you end up with a website you like and are proud to show off as part of your brand identity.

Now you have your shortlist, there are several key questions to pose to each potential candidate to ensure that they are the right fit for you. Here are the ten questions you should be asking to put you on track to finding your perfect website design partnership.

1. What types of website design services do you offer?

The first thing to realize is that there are many different kinds of websites, and as such, there are also many different kinds of website design services.

The types of website design services offered by web design agencies range from basic site creation to complex ecommerce solutions.

Basic web design services usually include developing and implementing a CMS (Content Management System) such as WordPress, Joomla, or Craft. Agencies may also provide more advanced services such as custom website design, SEO optimization, and web hosting.

Different agencies and freelancers specialize in various types of sites, so you must compare their solutions with your requirements.

2. Do you have any case studies of past projects I can review?

Experience matters when choosing a web design agency. Ask potential candidates about the years they have been in business and the types of projects they’ve worked on. New doesn’t necessarily mean low quality — plenty of great agencies are founded by experienced designers whose portfolios are owned by their previous employers.

However, it is easier to ensure a web design agency is a good fit for your project if you can review case studies of previous jobs. Case studies will provide valuable insights into their approach and techniques and how successful their clients have been.

3. Where are you based?

When it comes to web design agencies, there are pros and cons to hiring a local or remote team. On the one hand, working with a local agency can provide many advantages, such as in-person interaction and access to their resources. On the other hand, working with a remote team may offer greater flexibility, cost savings, and access to a global talent pool.

It’s essential to ask about an agency’s location to understand their services’ advantages and disadvantages.

Effective team communication is essential for any project, so you should check the working hours of any agency you select — you don’t want to wait overnight for answers to urgent queries.

4. Do you specialize in any particular industries or platforms?

Web design agencies may specialize in various industries and platforms, depending on the specific needs of their clients. For example, some might specialize in ecommerce solutions such as Shopify or WooCommerce, while others might focus on frameworks such as Vue or React.

Additionally, web design agencies may specialize in creating custom websites for specific industries, such as healthcare or finance.

Suppose you can locate a web design agency with previous experience developing websites for clients similar to you. In that case, they will be better placed to anticipate challenges specific to your project.

5. What is your process for designing websites?

Before hiring a web design agency, it’s essential to understand their approach to website design. For example, some agencies may take a more traditional “design and build” approach where they create the entire site from start to finish, while others may prefer to work with an existing template and make customizations.

Some design agencies use a traditional waterfall approach, while others adopt an agile methodology. Waterfall is a sequential process in which each step happens in isolation, whereas agile is an interactive approach with frequent testing and feedback.

Knowing how an agency prefers to work will help you establish realistic expectations about how they will integrate into your company culture.

5. Do you offer any additional services, such as SEO or hosting?

Website design agencies may offer a range of additional services, depending on the needs of their clients. Beyond website design and development, many agencies also provide SEO (search engine optimization) and web hosting services.

All reputable web design agencies will ensure that your website meets the minimum standard for technical SEO. But some agencies will also adapt your content to incorporate keywords and phrases related to your industry to help you increase website traffic once the site is launched.

When it comes to web hosting, your web design agency will help you choose the best type of hosting for your needs, but some agencies also provide hosting and will set up and manage a server for you.

6. How will the project be managed, and what is your timeline for completion?

When it comes to website design projects, timeline management is critical to ensure that your new website is delivered on time and within budget. Managing a website project requires careful planning and execution to keep everything on track.

You should also ask how the project will be managed throughout its lifecycle so that you can schedule your in-house timetables.

7. What type of maintenance can I expect after launching the website?

Launching your new website begins a long-term relationship with your web design agency. It’s essential to ask about their post-launch support process to ensure you have all the help and guidance you need. The agency should be able to provide comprehensive maintenance services such as bug fixing, content updates, and security checks.

Additionally, you should understand the process for making changes and requests after the website launch. Find out how quickly they can respond to your inquiries and the cost of any needed updates. This will help you plan your budget accordingly and avoid any unexpected fees.

9. How much will the project cost?

Speaking of costs, it’s vitally important to establish ballpark figures before you shortlist an agency. Like any industry, there is a wide range of different price points, dependent not just on the project but the marketability of the web design agency.

Make sure you ask for a comprehensive quote that outlines all the costs involved. Ask for a payment schedule so you know how much you’re expected to pay upfront. Check on any additional fees, such as maintenance or hosting.

Never adjust your project to secure a web design agency outside your budget. If you can’t afford a particular provider, strike them off your shortlist and move on to the next candidate.

10. What do you need from me?

As a client, there are several steps you need to take to ensure that your website design project runs smoothly. You will need to supply a detailed brief if nothing else.

You should be prepared to schedule regular feedback sessions so your agency can stay on track. You’ll probably need to supply brand materials such as logos, style guides, and any text, images, and videos you want to be included. The agency may want you to sign a contract, agree on a payment schedule, and pay an initial deposit.

Conclusion

Hiring a web design agency is challenging, especially if you don’t have the technical knowledge to assess an agency’s past work objectively.

By asking the questions above, you’ll get a solid sense of what the company is like to work for, how well they fit your corporate culture, and whether their proposed solution is within your budget.

The more questions you ask, the better informed you’ll be, and the more likely your website design project will succeed. Good luck!

 

Featured image via Pexels.

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The post 10 Questions You Must Ask Before Hiring a Web Design Agency first appeared on Webdesigner Depot.

Source de l’article sur Webdesignerdepot

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The Pros and Cons of Tailwind CSS

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As a utility-first CSS framework, Tailwind has rapidly become popular among developers. With its fast styling process and the freedom it offers when designing a website, it’s really no wonder why.

But how can you make sure this is the right CSS framework for your upcoming development projects? In this blog post, you’ll learn what Tailwind is, and how it differs from other frameworks like Bootstrap, or Foundation.

In addition, we will highlight the main advantages and disadvantages of the framework. By the end, you will be able to make an honest and objective assessment as to whether Tailwind is the right framework for you. So without further ado, let us dive deeper into it. 

What is Tailwind CSS?

First released in May 2019, Tailwind CSS is a front-end CSS framework. It is currently at version 2.2. Since its release, Tailwind has created quite a following. More than 260k developers have used it to enhance their design systems.

Stats like these make Tailwind one of the most popular CSS frameworks on the market, and all in less than two years. There are many reasons for this. Primarily, because its features make it the ideal choice for a wide variety of projects. Tellingly, most developers prefer it to create React projects.

The main difference between Tailwind and its competitors is that it gives developers complete control over the styling of a web application. So, is it the right CSS framework for you? To answer this question, let us take a look at Tailwind’s advantages and disadvantages.

Tailwind CSS: Pros and Cons

Tailwind CSS: Advantages

1. Control Over Styling

Tailwind is a unique CSS framework when it comes to styling web applications, meaning that Tailwind does not have a default theme that you have to use like other CSS frameworks.

For example, you can give each project a different look even if you use the same elements (color palette, size, etc.). Therefore, it’s one of the few CSS frameworks that is not opinionated on how you should style your project. 

2. Faster CSS Styling Process

There is no faster framework than Tailwind when it comes to styling HTML. As a result, you can easily create good-looking layouts by styling elements directly. This is possible because Tailwind offers thousands of built-in classes that do not require you to create designs from scratch.

Therefore, you do not have to write CSS rules yourself. These CSS classes are the main reason why building and styling with Tailwind is so fast. 

3. Responsiveness and Security 

With Tailwind’s pre-built classes, you can design the layout directly in an HTML file. This makes it a very responsive, mobile-friendly CSS framework. Apart from that, Tailwind has proven to be a stable framework since its initial release.

The framework was developed by top-notch engineers, which is why bugs and breaks are rare. 

4. Additional Features 

Tailwind CSS works in the front end of a website. For this reason, it is reasonable for developers to demand ultimate responsiveness. Well, Tailwind provides the ability to create responsive themes for your web applications and remove all unused CSS classes. With PurgeCSS, Tailwind helps you keep your final CSS as small as possible.

Tailwind CSS: Disadvantages

1. Styling and HTML are Mixed

Because you do not have to write CSS rules yourself, Tailwind works differently than most CSS frameworks. While this is great for those unfamiliar with CSS, it also means that Tailwind mixes style rules in with your HTML files.

This goes against the principle of the “separation of concerns.” Many developers prefer to separate page structure and style, claiming that classes make the Tailwind markup process verbose. 

2. It Takes Time to Learn 

Because of the built-in classes, Tailwind CSS is quite learning-intensive. Even for experienced developers, it can be a challenge to learn how to use and fully utilize the pre-built classes. But, of course, as with any other development task, practice makes perfect.

However, if you are confident and quick when it comes to writing CSS classes, Tailwind may not be the best choice for you. Even if that’s true, Tailwind generally makes CSS styling faster in the long run.  

3.  Lack of Important Components

Unlike Bulma and Bootstrap, Tailwind does not have many significant styling components. Unfortunately, this means you have to manually add features like headers, buttons, and navigation bars for web apps.

This is not a significant drawback, as experienced developers can implement these features quickly. However, you will need to spend some time doing so. 

4. Documentation 

Although Tailwind CSS has made great strides when it comes to adding guides and video tutorials, it still lags behind competitors like Bootstrap. Of course, you can always contact the developers if you have a problem.

However, keep in mind that this may take some time. For this reason, you may need to customize the framework to your needs manually.

Is Tailwind Worth Trying?

In a few words, working with Tailwind is quite different from other CSS frameworks. We have identified its main advantages and disadvantages. Based on these features, we can easily say that Tailwind is:

  • An excellent solution for developers familiar with CSS who want to speed up the creation and design process in the long run.
  • Not such a good idea if you are not familiar with CSS or do not want to spend time learning a new CSS framework. 

It becomes clear that it all depends on your personal needs and preferences. However, if saving time on CSS styling is a priority for you, you should definitely give Tailwind a try.

Regardless of whether you choose to use Tailwind or not, it’s evident that many developers use it for good reasons. Since it offers a faster styling process and is a responsive and stable framework, it’s here to stay.

Tailwind can help you save time and change the way you design websites, and so taking the time to test it out is worthwhile.

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The post The Pros and Cons of Tailwind CSS first appeared on Webdesigner Depot.


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