Billing System Architecture and System flow

Please watch this full video for the Billing System code walk-thru and System design and demo

https://youtu.be/PlGqs9XTSqc

Presentation Layer

The following are part of the Presentation layer component.

com.itgarden.controller and com.itgarden.dto

The Controller package contains only the Controller class where we can implement all Rest end-point

The presentation layer focused only on Client-side logic which related to Presentation Layer. For Example. It handles Request, Response data, and Client Headers, etc.

We have two main Components in Client-side which are RestController class where we implementing the Rest Endpoint and Value object which known as DTO (Data Transfer Object) classes. All DTO classes under in the following Package “com.itgarden.dto

I don’t want to expose the Entity objects in the Presentation Layer. it should available only in Service Layer. The Service class converts Entity objects as DTO class which is visible for Presentation Layer. These DTO classes designed for Client-side response. Spring Boot converts DTO to JSON data and sends it to the client-side as a response. The Entity object has unnecessary values that are not required for the Client-side so, those values are eliminated in DTO classes. This strategy is known as DTO Design Pattern.

Request Handling

The controller receives the request from the client and maps it to DTO Class, i.e. The client data tightly coupled with DTO classes. The client should follow the DTO class attributes as request data for their JSON Request.

User DTO Object' Attributes
private String firstName;
private String middleName;
private String lastName;
private String mobileNo;
JSON Attributes
{
"firstName": "Suresh1",
"middleName":"test",
"lastName": "Stalin",
"mobileNo": "987652553",
"emailId": "suresh@gmail.com"
}

The above example UserDTO object used in the Presentation layer. The same attributes used in Client-side JSON Attributes. This is the Contract between client and server. The client and Server strictly follow this data format for the data exchange. This Concept called as Content Negotiation in the Web Service world

Response Handling

The Controller sends all responses in the form for the following type.

ResponseEntity<ResponseMessage>.

We don’t want to change the response type for each endpoint so, I came up with a Generic Response Type for all the endpoints available in the System. In the future, if you want to develop any Rest Service, This response type is compatible(Accepted).

ResponseMessage class contains the following three attributes and three different static method

@Data
@NoArgsConstructor
@AllArgsConstructor(access = AccessLevel.PUBLIC)
@RequiredArgsConstructor(access = AccessLevel.PUBLIC)
public class ResponseMessage<T> {

    @NonNull
    private T responseClassType;

    private String message;

    private String messageType;

    public static <T> ResponseMessage<T> withResponseData(T classType, String message,String messageType) {
        return new ResponseMessage<T>(classType, message, messageType);
    }

    public static <T> ResponseMessage<T> withResponseData(T classType) {
        return new ResponseMessage<T>(classType);
    }

    public static ResponseMessage<Void> empty() {
        return new ResponseMessage<>();
    }
}

@NoArgsConstructor

@AllArgsConstructor(access = AccessLevel.PUBLIC)

@RequiredArgsConstructor(access = AccessLevel.PUBLIC)

The meaning of the above three annotations is, the Lombok create three different constructors for this class which are….

#software-architecture #software-development #billing-system #billing-software #spring-boot

What is GEEK

Buddha Community

Billing System Architecture and System flow

Billing System Architecture and System flow

Please watch this full video for the Billing System code walk-thru and System design and demo

https://youtu.be/PlGqs9XTSqc

Presentation Layer

The following are part of the Presentation layer component.

com.itgarden.controller and com.itgarden.dto

The Controller package contains only the Controller class where we can implement all Rest end-point

The presentation layer focused only on Client-side logic which related to Presentation Layer. For Example. It handles Request, Response data, and Client Headers, etc.

We have two main Components in Client-side which are RestController class where we implementing the Rest Endpoint and Value object which known as DTO (Data Transfer Object) classes. All DTO classes under in the following Package “com.itgarden.dto

I don’t want to expose the Entity objects in the Presentation Layer. it should available only in Service Layer. The Service class converts Entity objects as DTO class which is visible for Presentation Layer. These DTO classes designed for Client-side response. Spring Boot converts DTO to JSON data and sends it to the client-side as a response. The Entity object has unnecessary values that are not required for the Client-side so, those values are eliminated in DTO classes. This strategy is known as DTO Design Pattern.

Request Handling

The controller receives the request from the client and maps it to DTO Class, i.e. The client data tightly coupled with DTO classes. The client should follow the DTO class attributes as request data for their JSON Request.

User DTO Object' Attributes
private String firstName;
private String middleName;
private String lastName;
private String mobileNo;
JSON Attributes
{
"firstName": "Suresh1",
"middleName":"test",
"lastName": "Stalin",
"mobileNo": "987652553",
"emailId": "suresh@gmail.com"
}

The above example UserDTO object used in the Presentation layer. The same attributes used in Client-side JSON Attributes. This is the Contract between client and server. The client and Server strictly follow this data format for the data exchange. This Concept called as Content Negotiation in the Web Service world

Response Handling

The Controller sends all responses in the form for the following type.

ResponseEntity<ResponseMessage>.

We don’t want to change the response type for each endpoint so, I came up with a Generic Response Type for all the endpoints available in the System. In the future, if you want to develop any Rest Service, This response type is compatible(Accepted).

ResponseMessage class contains the following three attributes and three different static method

@Data
@NoArgsConstructor
@AllArgsConstructor(access = AccessLevel.PUBLIC)
@RequiredArgsConstructor(access = AccessLevel.PUBLIC)
public class ResponseMessage<T> {

    @NonNull
    private T responseClassType;

    private String message;

    private String messageType;

    public static <T> ResponseMessage<T> withResponseData(T classType, String message,String messageType) {
        return new ResponseMessage<T>(classType, message, messageType);
    }

    public static <T> ResponseMessage<T> withResponseData(T classType) {
        return new ResponseMessage<T>(classType);
    }

    public static ResponseMessage<Void> empty() {
        return new ResponseMessage<>();
    }
}

@NoArgsConstructor

@AllArgsConstructor(access = AccessLevel.PUBLIC)

@RequiredArgsConstructor(access = AccessLevel.PUBLIC)

The meaning of the above three annotations is, the Lombok create three different constructors for this class which are….

#software-architecture #software-development #billing-system #billing-software #spring-boot

Ruth  Nabimanya

Ruth Nabimanya

1620633584

System Databases in SQL Server

Introduction

In SSMS, we many of may noticed System Databases under the Database Folder. But how many of us knows its purpose?. In this article lets discuss about the System Databases in SQL Server.

System Database

Fig. 1 System Databases

There are five system databases, these databases are created while installing SQL Server.

  • Master
  • Model
  • MSDB
  • Tempdb
  • Resource
Master
  • This database contains all the System level Information in SQL Server. The Information in form of Meta data.
  • Because of this master database, we are able to access the SQL Server (On premise SQL Server)
Model
  • This database is used as a template for new databases.
  • Whenever a new database is created, initially a copy of model database is what created as new database.
MSDB
  • This database is where a service called SQL Server Agent stores its data.
  • SQL server Agent is in charge of automation, which includes entities such as jobs, schedules, and alerts.
TempDB
  • The Tempdb is where SQL Server stores temporary data such as work tables, sort space, row versioning information and etc.
  • User can create their own version of temporary tables and those are stored in Tempdb.
  • But this database is destroyed and recreated every time when we restart the instance of SQL Server.
Resource
  • The resource database is a hidden, read only database that holds the definitions of all system objects.
  • When we query system object in a database, they appear to reside in the sys schema of the local database, but in actually their definitions reside in the resource db.

#sql server #master system database #model system database #msdb system database #sql server system databases #ssms #system database #system databases in sql server #tempdb system database

Jenny Jabde

1621251999

Quick Flow Male Enhancement Reviews, Benefits Price & Buy Quick Flow?

364bb242-ab45-4601-b9cc-e444f2270076

On the off chance that you fall in the subsequent class, Quick Flow Male Enhancement is the thing that your body is needing right now. The recently discovered male arrangement is the difficult solver for numerous types and types of erectile pressure causing brokenness and causes those issues to be rectified and henceforth blessings you with the more youthful sexual variant.

What is Quick Flow Male Enhancement?
With the new pill, you can supplant all extraordinary and numerous allopathic drugs you had been taking for each issue in an unexpected way. Quick Flow Male Enhancement is the one in all treating instrument pill and causes those explicitly hurtful issues to get right. Regardless of everything, those obstacles are restored and unquestionably, you can feel that the sexual peaks are better. This item builds body imperativeness and the measure of discharge that is required is likewise directed by it.

**How can it really function? **

Different results of this class have numerous regular Ingredients in them, yet the ones here in Quick Flow Male Enhancement are truly uncommon and furthermore natural in their reap and produce. This allows you to get the experience of the truth of more profound sex intercourse which you generally thought was a fantasy for you. Positively, this is a demonstrated natural thing, and relying upon it is no place off-base according to specialists. It is time that your body is given valuable minerals as requested by age.

download-1
**How to Buy? **

It is fundamental that you visit the site and see by your own eyes you willing we are to help you in each progression. Start from the terms and furthermore know inconspicuously the states of procurement. Any question must be addressed as of now or, more than likely later things probably won’t go as you might suspect. Purchase Quick Flow Male Enhancement utilizing any method of online installment and you may likewise go for the simple EMI choice out there.

https://www.benzinga.com/press-releases/21/03/wr20313473/quick-flow-male-enhancement-reviews-fast-flow-male-enhancement-most-effective-and-natural-formul

https://www.facebook.com/Quick-Flow-Male-Enhancement-111452187779423

#quick flow male enhancement #quick flow male enhancement reviews #quick flow male enhancement male health #quick flow male enhancement review #quick flow male enhancement offer #quick flow male enhancement trial

Maddy Bris

Maddy Bris

1599132316

5Kw Solar System in Brisbane

1 August 2020, Sunny Sky solarannounced you to launch a residential solar power system in Queensland, Australia. There are different sizes of houses with different energy requirements so one solar power system cannot fulfill every type of electricity need.

Whether energy need is low or higher they have announced a wide range of solar power system in Brisbane that includes 5KW solar panel system, 6Kw solar panel system, 10Kw solar panel system, and many more so that everyone can enjoy the benefits of solar energy.

Residential Solar Power System needs to be flexible because of the changing requirement of energy. As we know our energy needs hikes up in the summers more than winters because we use air conditioners, refrigerators (also used in winters but less than summers), fans. In winter we drop down these usages so the energy needs to go up and down according to the weather changing.

Some households have a high energy need, some have low, and mostly have the normal or average of high and low. Sunny Sky Solar offers expert’s advice to all the customers on call or personally because it is important to analyze the energy need, budget, location, and many other things before buying a solar power system for your home sweet home.

Their professionals analyze all these things and suggest you the best residential solar power system in Brisbane to reduce the energy costs and clean the environment as solar energy is green & clean energy.

At this time of announcing the residential solar panel system, the representative of Sunny Sky Solar has talked about some advantages of a residential solar power system. He said “get update yourself by the time is important because the latest technology will save you lots of money and time. The solar power system is the best technology in this era that can give you lots of benefits. Don’t get upset with the initial cost because after installing a solar power system at your house it will repay you the initial cost in two to three years. So, you are going to invest in a great deal if you are purchasing a solar panel system in Brisbane.”

He also added “Residential solar power system can save your pocket from getting loose every month for heavy electricity bills. You will earn money by producing solar energy and feeding your power supply grid as government, and mostly all the power suppliers give benefits to producing solar energy. You can easily earn money by feeding the power grid with your excess produced solar energy. You will use solar energy and save the excess by feeding the power grid this way.”

Sunny Sky Solar offering an efficient range of residential and commercial solar power system that includes 5KW solar panel system, 6.6Kw solar panel system, 10Kw solar panel system, and there are many more that you can select according to your energy needs and budget.
They provide expert assistance that will help you in choosing the best solar system for your house. Their experienced professionals work under the guidance of experts who ensures the perfections and safety at the time of installing and after the installation.

Installing a solar power system at your place will be more convenient with them because they work under the expert’s supervision that makes them perfect and faster. They ensure safety first at the time of installing because at that time family members are around the installing site and accidents can happen.

They also ensure the quality of products they used in installing and other solar products. If the products will be durable and efficient, the system will produce more electricity with higher efficiency for a longer period.
The main thing that matters while installing a solar power system at a residence is the roof situation, Sunny Sky Solar doesn’t work for doing business only. They first check the place or analyze from your information that your location is safe for installing a solar power system or not. If the find any problem they will suggest repairing it first because if you will put the solar power system at a less secure place and the solar system’s weight can damage it then repairing that place first should your main priority.
This shows their loyalty and caring behavior towards the customers.

#solar panel system #solar panel system in brisbane #5kw solar panel system #5kw solar panel system #10kw solar panel system #10kw solar panel system in brisbane

Secret Email System Review - Recommended or Not?

Matt Bacak’s secret email system is one of the most successful products in the WarriorPlus marketplace in recent memory. My secret email system review will not try to hard sell you on the product – I mean, it’s pretty cheap, so if you’re going to buy it, you’re going to buy it. Instead, I’ll concentrate on explaining the benefits of email marketing and how to get the most out of Matt’s system.

Nowadays, digital marketing is essential for every business. But what is the best strategy? There are many different points of view, but one thing is certain: emails are essential. Email marketing is one of the most efficient and cost-effective ways to promote a business online, and it is simple and inexpensive to get started. The most important thing is to understand your audience and deliver content and offers that are truly relevant to them.

The PDF Download of an Honest Secret Email System Review
The front-end product
What Matt Bacak is selling, which has been promoted by such capable affiliates as Curt Maly, is a PDF ebook that you can download immediately after purchasing. However, there are a number of bonuses included to sweeten the deal. You get access to Mr. Bacak’s private Facebook group, and instead of a simple PDF download, you get a massive zip file full of useful files and videos.
Now that we know what we’re up against, let’s get into this secret email system review!

What is Included in the Secret Email System Download?
Here is a list of everything you get inside the zip file sold at the front end of the Secret Email System:

Matt Bacak’s 3x Formula Calculator (plus a video explaining how to use it)
1000 email swipe files in text format (swipe files or “swipes” are like templates you can repurpose in a variety of ways).
A 1.5-hour video session

Free access to Matt’s high-converting leadpages lead generation template
A massive book of swipe files (in PDF format)
A copy of Matt’s book, Secrets of the Internet Millionaire Mind,
A video tutorial on how to select “irresistible offers” from affiliate marketplaces.

The PDF version of The Secret Email System
The Checklist for the Secret Email System PDF
Text files containing instructions for joining the Facebook group and other bonuses
Matt was charging less than $6 for all of that value last time I checked. He is demonstrating his many years of experience in internet marketing by creating an irresistible offer that people will want to buy and affiliates will want to promote. As a result, the Secret Email System has sold more copies on Warrior Plus than any other product in recent memory.

Examine everything included in the secret email system
Who is Matt Bacak, and why should I listen to him?
Many consider Matt Bacak to be an internet marketing legend, and email marketing is his primary focus. My first encounter with Matt came in the form of some Facebook ads he ran. Matt explained who he was in the video ad (which featured a little guy dancing in the background) and invited me to visit his blog, which I did. He demonstrated a thorough understanding of online business, so it’s no surprise that he put together the ultimate email marketing package.
headshot of Matt Bacak

Overall, Matt’s ad was one of the strangest Facebook ads I’ve ever seen. It was also one of the most effective and memorable. I didn’t buy whatever Matt was selling that day, but I read his blog and remembered his name and who he was. When I saw Curt Maly running ads for Matt Bacak’s Secret Email System months later, it made a big difference.

When I saw that the price was under $6 and that the bonuses were included, I knew I had to buy the product. I didn’t buy it right away because I was too busy, but it stayed in the back of my mind until I had the opportunity to do so.
If it isn’t obvious, I’ll explain: the reason you should listen to Matt Bacak is that he knows how to get inside people’s heads and stay there, both as a marketer and as a public figure.

Is the Secret Email System Training of Good Quality?
At first glance, the training does not appear to be groundbreaking, but this is because the creator is unconcerned about flashy packaging. You literally get a zip file full of stuff that most people would put on a membership website. I can see how this would irritate some people who are used to flashy ClickFunnels and Kajabi courses.

If that describes you, you’re missing out. Matt’s training isn’t flashy, but it describes a solid system that most businesses can implement in some way. As the name implies, it all revolves around building a list and emailing it on a regular basis. Did I ruin the surprise?
Front end offer and upsells from a secret email system
Bonuses from the Secret Email System (and a Bonus From Me)
I’ve already outlined everything you get in the zip file that serves as the funnel’s front-end offer. Everything else, other than the Secret Email System PDF itself, is considered a bonus, and the total value could easily be in the hundreds of dollars.

That’s why purchasing this product was such a no-brainer for me. I already knew how to write good marketing emails, but I really wanted to look inside Matt’s system.
In addition to everything else, you’ll get lifetime access to Matt’s private Facebook community. He answers questions from people here on a daily basis, and it can be a great place to learn.

The truth is that you get so much value and stuff from purchasing this product that adding another bonus is almost pointless. But I’m a bonus machine, so be prepared.
In 2020, I published my first book on email marketing, How to Build Your First Money Making Email List. You’re already getting a lot of reading material, but if you purchase Matt’s product through my link, I’ll add it to the stack. Most of the books I write sell for $27, so this just adds to the ridiculous valuation of this sub-six-dollar product.
Bonuses Bonuses for Matt Bacak’s Secret Email System
Will This Product Really Help You Make Money Online?

It all depends on whether or not you use the secret email system. According to multiple sources, Matt Bacak is in charge of millions of dollars in sales for both himself and his clients. And the best thing about this guy is that he’s upfront and honest, and he puts his money where his mouth is. What I mean is that he doesn’t hold anything back in the books he writes. That is another reason he has amassed such a large and devoted fan base.

Finally, if your business can profit from email marketing or if you want to use email marketing to become an influential public figure, I believe this ebook can assist you. It helped me improve my understanding of the business side of being an affiliate marketer and is far more valuable than the price tag. This product will be especially useful if you want to get started in affiliate marketing with a small investment.

matt bacak’s business model
Going Beyond My Review – Secret Email System
The book itself goes beyond email marketing, but I don’t want to give too much away. Instead, I’ll go over some of the finer points of lead generation quickly so you can get started building your email list as soon as possible.

Now, I’m guessing that roughly 90% of people reading this review are affiliate marketers or are interested in affiliate marketing. As a result, I’m going to focus on lead generation strategies used by many successful affiliates. If you want to learn more about my favorite affiliate marketing strategies, click on that link to read my in-depth guide.

The Most Effective Methods for Building an Email List
Here’s a rundown of some of the best (and quickest) ways to build an email list. First, you’ll need a way to collect emails, and it must be a high-converting method. My favorite lead generation tools are:
ConvertBox (on-site messaging software/advanced popup builder)
ConversioBot (website chatbot platform)

You may have noticed that the majority of them are chatbots. Chatbots, on the other hand, are one of the best ways to not only capture an email address, but also to obtain additional customer information and even directly sell products.
The following are the most effective ways to drive traffic to these tools:
Facebook ads (particularly effective when paired with ConvertBox)
Google Ads and YouTube Ads (a killer combination with ConvertBox or Conversiobot)

Influencer Marketing
Facebook organic marketing
Search Engine Optimization
Secret Email System sales page Matt Bacak

If you can master even one of those traffic methods and use it to drive people to a high-converting optin or sales funnel, you’ll be well on your way to creating a recurring income.
Whether or not you choose to purchase this product through my link, I wish you the best of luck with your online business. If you do purchase the system, I hope to see you in the Facebook community! Please feel free to contact me via message or email at any time.

And if you do get the ebook through my link, please let me know so I can send you a copy of my book as a bonus!

Frequently Asked Questions (FAQs) About The Secret Email System
Here are some frequently asked product-related questions.
Is the secret email system bonus worth it?

In my opinion, the front end product and the majority of the bonuses are worth the price. I would have paid more just to gain access to Matt’s Facebook group!
What are the benefits of a hidden email system?
The main benefit is that you will learn one of the highest ROI business practices (email marketing) from someone who has built a seven-figure online business.

What do you call email marketing?
Email marketing is an important component of digital marketing for many businesses. Email marketing software is frequently referred to as an autoresponder, but a good email marketing platform will have more functionality.

Is this a legitimate way to make money online?
My secret email system review says it’s a great way to make money online as long as your online business uses marketing emails. It does require a list, but Matt teaches several methods for creating one.

Visit The Officail Website

#secret email system matt bacak #secret email system review #secret email system #secret email system bonus #secret email system bonuses #secret email system reviews