Web Services Archives - Asjava Java development blog Tue, 10 Mar 2026 13:27:50 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.1 https://asjava.com/wp-content/uploads/2024/03/cropped-javascript-736400_640-32x32.png Web Services Archives - Asjava 32 32 Toronto’s Tech Backbone: 6 Software Firms Powering Enterprise Digital Transformation https://asjava.com/web-services/torontos-tech-backbone-6-software-firms-powering-enterprise-digital-transformation/ Tue, 10 Mar 2026 13:26:29 +0000 https://asjava.com/?p=445 Toronto has become something unexpected. Not just a banking town or a real estate market, […]

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Toronto has become something unexpected. Not just a banking town or a real estate market, but a genuine technology hub where enterprise-grade software gets built. The city now hosts a dense concentration of firms capable of handling the most demanding digital transformation projects.

For organizations running business-critical systems, the choice of development partner carries serious weight. These systems process customer transactions, manage supply chains, and handle sensitive data. They cannot fail. They must scale with growth. They need to evolve as markets shift.

The firms profiled here have earned their reputations through years of consistent delivery. They’ve served Canadian enterprises across multiple sectors. They’ve built systems that matter. And they’ve maintained the client relationships that only come from getting it right again and again.

What Makes a True Toronto Market Leader

Before examining specific companies, understanding what distinguishes genuine local authorities helps frame your evaluation.

Canadian enterprise case studies demonstrate real capability

Serving organizations like Bell Canada, major financial institutions, and government agencies requires a level of reliability that general experience cannot guarantee. Past success in similar contexts predicts future performance.

Ten-plus years of delivering business-critical systems builds institutional knowledge

Longevity in this market means surviving multiple technology cycles, economic shifts, and changing client expectations. Firms that endure have learned what works.

Customer satisfaction leadership shows consistent execution

Perfect or near-perfect client scores are rare in this industry. They indicate disciplined processes, transparent communication, and genuine commitment to outcomes.

Local presence enables responsive partnership

Toronto-based teams meet when needed, understand the regional business context, and maintain relationships that distance weakens.

Six Toronto Firms Leading Enterprise Digital Transformation

1. Euristiq

Euristiq has established itself as a definitive partner for Canadian organizations undertaking complex digital transformations. Their approach combines technical depth with rigorous security protocols and documented client success. They also deliver enterprise-grade software with documented success and perfect client satisfaction, confirmed by 10/10 survey scores.

Their impact includes a document verification service adopted by the Government of Canada and major financial institutions, now used by Canadians for online government access and identity verification via mobile, ensuring secure data processing.

They handle business-critical systems for demanding sectors like national telecom (Bell Canada) and financial transactions (Interac).

Their technical expertise spans complex IoT, demonstrated by an AWS-powered telematics platform for a London insurer, which analyzes video and real-time vehicle data, reducing client insurance expenses by 25%. They also developed Bluetooth-connected Android/iOS apps for L&B Altimeters (over 100,000 units sold globally), enabling altimeter configuration and digital logbooks. Furthermore, they created a scalable remote IoT device management platform with a public API for third-party innovation.

Credentials include ISO 27001:2022 certification and AWS Advanced Tier partnership, offering objective proof of security and cloud expertise. Euristiq is the gold standard for organizations needing enterprise solutions with Canadian success and excellent service.

2. Direct Impact Solutions

Direct Impact Solutions serves enterprises with specific workflow needs, emphasizing operational understanding before coding. Their experience spans regulated industries like healthcare, finance, and government, where systems handle sensitive data, ensure compliance, and maintain audit trails.

A strong Toronto presence allows for responsive, face-to-face partnership, accelerating decision-making. They prioritize operational continuity through phased integration, building secure modern applications atop existing databases for immediate value while gradual transformation occurs.

Regulatory expertise ensures systems meet compliance standards quickly, avoiding extended review cycles.

3. Architech

For over two decades, Architech has served the Canadian market, building deep cross-sector expertise. Their comprehensive capabilities suit organizations undergoing significant transformation.

Long-term client relationships and hundreds of modern applications for enterprise brands demonstrate consistent value. Architecture choices consider both current and future needs. Cross-industry experience, from financial services to the public sector, provides a valuable perspective; solutions learned in one sector often apply to others.

The return of key technology leaders, CTO Jeevan Varughese and Head of Engineering Robin Jerome, strengthens their practice, bringing enhanced data engineering and mobile expertise and signaling commitment to Toronto market leadership. Design thinking ensures adoption; Architech balances robust engineering with intuitive user experiences.

4. Osedea

Montreal-based Osedea strongly serves enterprise clients across Eastern Canada, focusing on manufacturing, automation, and construction.

A partnership with Boston Dynamics allows Osedea to deliver cutting-edge automation, bridging physical and digital worlds with platforms like the Spot robot. This is valuable where robotics and enterprise systems intersect.

Rapid iteration, including AI auditing weeks and four-week sprints for production-ready prototypes, prevents expensive detours.

Human-centric design ensures industrial adoption, leading to lower training costs and higher productivity as factory workers embrace user-friendly systems.

Osedea’s Industry 4.0 expertise offers proven solutions for manufacturing challenges like quality control, computer vision inspection, and autonomous navigation.

5. Kloudville

Mississauga-based Kloudville streamlines complex operational workflows for major enterprises like telecom providers and distributors. Founded by BSS/OSS veterans from ConceptWave and Objectel, their expertise ensures a deep understanding of sector challenges.

Canadian case studies show their platforms manage partner lifecycles, product catalogs, and order fulfillment for large telecom clients, serving as an operational backbone. Deployment is flexible, offering public/private cloud, on-premise, or hybrid models to meet client security and control needs.

6. Iversoft

Iversoft, a mobile development firm based in Ottawa and Toronto, operates like a “studio as a service,” aiming for long-haul partnerships. They’re all about being transparent, focusing on the user, and offering flexible team support so you don’t have to deal with the headaches of permanent hiring.

They keep things super visible with real-time updates and weekly sprints. Thanks to their mobile-first mindset, they consistently roll out solid native and cross-platform apps. The best part? Iversoft kicks things off with a consultation to nail down the challenges and recommend the best tech right from the jump, which saves everyone a ton of money on fixes later.

Why Local Market Leadership Matters

Choosing Toronto-based firms with documented enterprise success offers specific advantages.

Understanding of Canadian regulatory context reduces risk. PIPEDA compliance, provincial privacy rules, and sector-specific regulations are familiar territory. Partners don’t need education on basic requirements.

  • Time zone alignment enables real-time collaboration. Complex discussions happen during business hours, not across overnight email threads. Decisions move faster.
  • Face-to-face meetings build stronger relationships. When critical issues arise, in-person conversations resolve them more effectively than video calls. Local presence enables this.
  • Accountability is easier to enforce. Firms with local reputations to protect and physical offices in the city have more at stake than remote operators.

The Value of Ten-Plus Years Delivering Critical Systems

Longevity in this market signals specific capabilities.

Survived multiple technology cycles. Firms that have been delivering since the early 2010s have navigated the cloud shift, mobile revolution, and AI emergence. They adapt without losing core competence.

Build institutional knowledge about what fails. Experience includes learning from mistakes. Firms that endure have figured out which approaches don’t work.

Maintained client relationships through leadership changes. Enterprise clients undergo constant personnel shifts. Partners who retain relationships through these transitions have demonstrated value that transcends individual champions.

Developed processes that scale. Serving enterprise clients for a decade requires repeatable methodologies. These firms have refined their approaches through hundreds of projects.

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Coursiv Trustpilot Rating Explained: 4.4 Stars From 68K Reviews https://asjava.com/coursiv-trustpilot-rating/ Mon, 19 Jan 2026 13:55:49 +0000 https://asjava.com/?p=433 Looking at Coursiv’s Trustpilot reviews can feel overwhelming. With over 68,000 reviews and a 4.4-star […]

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Looking at Coursiv’s Trustpilot reviews can feel overwhelming. With over 68,000 reviews and a 4.4-star rating, there’s a lot to unpack about this AI learning platform.

We analyzed hundreds of Coursiv reviews on Trustpilot to understand what users actually think. This deep dive covers the real user experience, common praise, frequent complaints, and whether the rating reflects genuine value.

If you’re considering Coursiv’s AI courses or wondering if those 4.4 stars are legitimate, this breakdown gives you the full picture from actual users.

Overview

Coursiv positions itself as an “AI gym” for complete beginners. The platform teaches practical AI skills through bite-sized daily lessons covering tools like ChatGPT, MidJourney, DALL-E, and Google Gemini.

Their signature offering is the 28-Day AI Challenge, designed for busy professionals who want hands-on AI training without technical prerequisites. Each lesson takes 5-10 minutes and focuses on real-world applications rather than theory.

The platform operates across iOS, Android, and web (coursiv.io), serving over 800,000 learners. Users complete daily challenges, earn certificates, and track progress through gamified learning paths.

Coursiv targets professionals aged 45+ who feel left behind by AI developments, career changers exploring new skills, and small business owners wanting to reduce outsourcing costs. The emphasis stays firmly on practical application over academic concepts.

The Details

Coursiv’s structure revolves around short, actionable lessons. The 28-Day AI Challenge covers different AI tools each week, building from basic ChatGPT prompting to advanced image generation with MidJourney and Stable Diffusion.

Daily challenges include guided playbooks with templates and workflows users can immediately apply to their work. The platform tracks streaks and awards certificates upon completion, appealing to users who respond well to gamification.

Beyond the flagship 28-day program, Coursiv offers shorter 14-day challenges and specialized tracks like the No Code Challenge. All content focuses on practical skills rather than technical theory.

The learning approach emphasizes “doing” over watching. Users interact directly with AI tools during lessons rather than passively consuming video content. This hands-on method appears frequently in positive Coursiv reviews on Trustpilot.

What Users Say

The Coursiv Trustpilot reviews reveal consistent themes about user experience and learning outcomes.

“It shows how important it is to use ChatGPT, because with the right question and a specific question, you can get a more precise and desired answer. Also, it was the first time I heard and learned that there are two versions of ChatGPT. It’s great for knowledge, and I like that it.”

Many users appreciate the practical focus on prompt engineering and tool-specific techniques.

“Initially I was hesitant to try this out (admittedly I have an immediate hesitation for social media-recommended things I have to pay for) but decided to try. If anything, I’d be out however much I paid, which was doable. I’ve been really enjoying the lessons. Short, concise, focused on 1 thing. Easy to do between tasks. I found myself taking notes based off of the things I’ve been learning.”

The bite-sized format consistently receives praise from busy professionals who struggle with longer courses.

“Hands on is always best for me. I love being able to walk through the process and learn what these different AIs can do. I put all AI into one bucket before this course. Coursiv has shown me what the different tools can do for me.”

Users frequently mention discovering the distinct capabilities of different AI tools, moving beyond basic ChatGPT usage.

“I enjoy learning about new things and technology. Coursiv is a great resource for learning about AI and how to implement its many uses into any project that you are creating. This was a great experience and I recommend giving it a try. You learn something new and it can be a powerful tool to advance your business/career and ultimately lead to a better income.”

Career advancement and business application appear as common motivations among satisfied users.

“My experience with Coursiv has been outstanding from start to finish. The platform is extremely user-friendly, organized, and efficient, making the entire process smooth and stress-free. What truly stood out was their responsiveness and genuine commitment to helping users succeed.”

Customer support quality receives consistent mention in positive reviews.

“Coursiv is a fantastic learning platform—easy to use, well-organized, and full of clear, high-quality lessons. The content is practical, the instructors explain things well, and the support team is quick to help. Highly recommend!”

Platform usability and content organization get frequent positive mentions across Coursiv Trustpilot reviews.

Even experienced users find value in the structured approach:

“TBH, I’ve worked in AI academically and professionally since 1982. I’m taking the course to polish my skills as a user, but especially to assess its value as a resource to be recommended to family, friends, and clients and students in my consulting/training business.”

Pros and Cons

Pros: – Genuinely beginner-friendly with zero technical prerequisites – Short 5-10 minute lessons fit busy schedules – Hands-on practice with real AI tools during lessons – Covers multiple AI platforms beyond just ChatGPT – Strong customer support responsiveness – Gamified progress tracking maintains engagement – Practical templates and workflows included – Available across all devices

Cons: – Content may be too basic for users with existing AI experience – Limited advanced topics for users wanting deeper technical knowledge

The Coursiv rating reflects a platform that delivers on its core promise of making AI accessible to beginners. Most criticism centers on content depth rather than quality or delivery.

Is It Worth It?

The 4.4-star Coursiv Trustpilot rating appears to accurately reflect user satisfaction, particularly among the target demographic of AI beginners and busy professionals.

One reviewer offers balanced perspective:

“I greatly enjoyed completing the Coursiv AI Mastery course. Whilst I know some critics have complained it is very basic, that’s the beauty of the course… it starts off with the fundamentals. It’s easy to follow with plenty of exercises to practice with each of the AI tools, and the structure of the course enables you to gradually build up your knowledge. The completion certificates for each course are a nice touch. I believe this course could greatly benefit many other people who are interested in learning more about AI, and I encourage folks to give it a try. Please note though, it is probably best to see what you can find for free on platforms like YouTube as this may give you all you are after rather than paying for Coursiv, which may give you more than what you really need. For me, the cost was more than worth it.”

This review captures the value proposition well. Coursiv works best for people who prefer structured, guided learning over free but scattered YouTube content. The platform excels at taking complete beginners from curious to confident with practical AI skills.

The coursiv rating on Trustpilot suggests genuine user satisfaction rather than artificial inflation. Reviews consistently mention specific features, learning outcomes, and practical applications rather than generic praise.

For professionals who need practical AI skills quickly and prefer guided learning, the investment appears worthwhile based on user feedback. Those comfortable with self-directed learning might find adequate free resources elsewhere.

Ready to see if Coursiv’s approach works for you? Check out their 28-Day AI Challenge and join the 800,000+ learners building practical AI skills through daily practice.

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What is a web service and how to work with it? https://asjava.com/web-services/what-is-a-web-service-and-how-to-work-with-it/ Wed, 14 Feb 2024 11:15:00 +0000 https://asjava.com/?p=68 We should start with what the concept of web services was created for. By the time this concept appeared, there were already technologies in the world that allowed applications

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We should start with what the concept of web services was created for. By the time this concept appeared, there were already technologies in the world that allowed applications to communicate at a distance, where one program could call some method in another program, which could be run on a computer located in another city or even country. All this is abbreviated as RPC (Remote Procedure Calling). As examples we can cite CORBA technologies, and for Java – RMI (Remote Method Invoking). And everything seems to be good in them, especially in CORBA, since it can be worked with in any programming language, but something was still missing. I guess the disadvantage of CORBA is that it works through its own network protocols instead of just HTTP, which will get through any firewall.

The idea behind the web service was to create an RPC that would be stuffed into HTTP packets. That’s how the development of the standard started. What are the basic concepts of this standard:

  • SOAP. Before you can call a remote procedure, you need to describe that call in a SOAP XML file. SOAP is just one of the many XML markups that are used in web services. Anything we want to send somewhere via HTTP is first turned into an XML description of SOAP, then stuffed into an HTTP packet and sent to another computer on the network over TCP/IP;
  • WSDL. There is a web service, i.e., a program whose methods can be remotely invoked. But the standard requires that this program be accompanied by a description that says “yes, you are not mistaken – this is indeed a web service and you can call such and such methods from it”. Such a description is represented by another XML file that has a different format, namely WSDL. That is, WSDL is just an XML file describing a web service and nothing else.

So, in Java, there is such an API as JAX-RPC. In case you don’t know, when people say that Java has such and such an API, it means that there is a package with a set of classes that encapsulate the technology in question. JAX-RPC took a long time to evolve from version to version and eventually evolved into JAX-WS. WS obviously stands for WebService and one might think that this is a simple renaming of RPC into the now popular buzzword. This is not the case, as Web Services have now moved away from the original idea and allow not just calling remote methods, but simply sending SOAP-formatted messages-documents. Why this is needed I don’t know yet, the answer here is unlikely to be “just in case you need it”. I myself would like to know from more experienced comrades. And lastly, then there is also JAX-RS for so-called RESTful web services, but this is the topic of a separate article.

General approach

In web services there is always a client and a server. The server is our web service and is sometimes called the endpoint (like, the endpoint where SOAP messages from the client go). What we need to do is the following:

  • Describe the interface of our web service;
  • Implement this interface;
  • Run our web service;
  • Write a client and remotely call the required method of the web service.

You can run a web service in different ways: either describe a class with the main method and run the web service directly as a server, or you can depopulate it on a server like Tomcat or any other server. In the second case, we don’t start a new server ourselves and don’t open another port on the computer, we just tell the Tomcat servlet container that “we’ve written the web service classes here, please publish them so that everyone who comes to you can use our web service”.

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JAX-RS is just an API https://asjava.com/web-services/jax-rs-is-just-an-api/ Wed, 10 Jan 2024 11:01:00 +0000 https://asjava.com/?p=62 The RESTful API can be implemented in Java in a number of ways: you can use Spring, JAX-RS, or just write your own servlets if you're good and brave enough.

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Overview

The REST paradigm has been around for a few years now and still attracts a lot of attention.

The RESTful API can be implemented in Java in a number of ways: you can use Spring, JAX-RS, or just write your own servlets if you’re good and brave enough. All you need is the ability to expose HTTP methods – the rest depends on how you organize them and how you direct the client when calling your API.

As you may realize from the title, this article will focus on JAX-RS. But what does “just an API” mean? It means that the focus here is on clearing up the confusion between JAX-RS and its implementations and offering an example of what a proper JAX-RS web application looks like.

Incorporating it into Java EE

JAX-RS is nothing more than a specification, a set of interfaces and annotations offered by Java EE. And then, of course, we have implementations; some of the best known are RESTEasy and Jersey .

Also, if you ever decide to build a JEE-compatible application server, the folks at Oracle will tell you that, among other things, your server must provide a JAX-RS implementation for use by deployed applications. That’s why it’s called the Java Enterprise Edition Platform .

Another good example of specification and implementation is JPA and Hibernate.

Lightweight wars

So how does all this help us developers? The help is that our deployable components can and should be very thin, allowing the application server to provide the necessary libraries. This applies to RESTful API development as well: the final artifact should not contain any information about the JAX-RS implementation being used.

Of course, we can provide the implementation ( here’s a tutorial on RESTeasy). But then we can no longer call our application a “Java EE app”. If someone comes tomorrow and says ” Ok, it’s time to move to Glassfish or Payara, JBoss has gotten too expensive! ” We might be able to do that, but it will be hard work.

If we provide our own implementation, we have to make sure that the server knows to exclude its own – this usually happens by having a proprietary XML file inside the deployment. Of course, such a file should contain all sorts of tags and instructions that nobody knows anything about except the developers who left the company three years ago.

Always know your server

So far we have said that we should take advantage of the platform we are offered.

Before deciding which server to use, we should look at what JAX-RS implementation (name, vendor, version and known bugs) it provides, at least for production environments. For example, Glassfish comes with Jersey and Wildfly or Jboss comes with RESTEasy.

This of course means a small amount of research time, but this is only supposed to be done once, at the beginning of a project or when migrating it to another server.

Just keep in mind that JAX-RS is a powerful API, and most (if not all) of what you need is already implemented on your web server. You don’t need to turn a deployable module into an unmanageable pile of libraries.

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Working with JAX-WS Web Services https://asjava.com/web-services/working-with-jax-ws-web-services/ Sun, 07 Jan 2024 11:08:00 +0000 https://asjava.com/?p=65 Numerous platforms are available on the market for developing web services based on the Java platform. However, most of these platforms conform to the JAX-WS specification (JSR-000224).

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Numerous platforms are available on the market for developing web services based on the Java platform. However, most of these platforms conform to the JAX-WS specification (JSR-000224).

Start developing a simple web service

Software requirements:

  • Java SE 1.6 or higher;
  • JAX-WS Reference 2.2.5 implementation (available here);
  • Apache Tomcat version 6 or higher.

The web service can be developed in two ways

Top-down approach

In this approach, the service interface is created first, and the implementation is provided later.

Bottom-up approach

In this approach, the service implementation is created first and the interface is defined on that basis. This approach is easy for beginners unfamiliar with web services.

We follow the second, bottom-up approach, for reasons of simplicity and to have a faster, ready-to-use working example.

What you need to do.

Create a POJO class (an old Java object) and annotate it with WebService as follows

package com.accrd.blog.blog.ws.jaxws.sample;
import javax.jws.WebService;
@WebService(name="SimpleWebService")
public class SimpleWebService {
public String sayHello (String name){
return "Hello, "+ name + "!" ;
}

Now the web service has a task, and the available operation does this: you pass a name (“web service”), and it returns a hello message with the specified name (“Hello, web service!”).

That’s it. The web service is ready to be deployed.

You can deploy it in two ways,

  1. standalone deployment. In this approach, you just need to have a main method and call Endpoint.publish (url, provider) . This is mentioned below. This creates the web service runtime environment that comes with Java SE 6 and deploys it to a lightweight http server. The service is accessible from the URL specified as input to the publish method.
  2. Deployment in a servlet container. In this approach, we can deploy a web service by creating a standard .war file of a java web application and deploy it to a web server that has servlet container support, such as Tomcat or Jetty.

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