Mohamed Amr

#laravel tip You can load relationships of relationships using dot notation. $users = App\Models\User::with('posts.comments')->get(); 🔥

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Title: Domain-Driven Design (DDD) for Microservices: A Strategic Guide 🔰 Understanding DDD: Domain-Driven Design (DDD) is a software development approach focusing on understanding and modeling the core domain. It bridges the gap between technical and domain experts, ensuring that both are aligned with the software’s goals. 🔰 DDD in Modern Software Development: With the shift towards microservices, DDD becomes crucial. It ensures services are well-defined, isolated, and capable of independent evolution, thus enhancing agility and scalability. Key Concepts 🗝 : • Entities: Unique objects with a distinct lifecycle. • Value Objects: Immutable objects representing descriptive characteristics. • Aggregates: Clusters of related objects treated as a single unit to maintain consistency. 🔰 DDD Patterns in Microservices: 1️⃣ Bounded Contexts: Define clear subsystem boundaries. 2️⃣ Repositories: Abstract the database layer. 3️⃣ Factories: Create complex objects. 4️⃣ Services: Focus on specific business logic. 🔰 Relationship between DDD and Microservices: DDD’s strategic perspective complements microservices’ need for small, manageable, independent services. By dissecting complex domains into subdomains, businesses can create microservices with clear purposes and responsibilities. 🔰 Ensuring Autonomy and Isolation: Microservices must function autonomously. DDD helps achieve this by minimizing dependencies, allowing services to evolve independently. 🔰 CQRS and Event Sourcing: 🔸 CQRS: Separates command and query operations, optimizing each for its specific purpose. 🔸 Event Sourcing: Stores every state change as an event, ensuring data isn’t lost and system state is traceable. 🔰 Challenges and Solutions: 🔸 Complexity: Breaking down systems into bounded contexts requires clear domain knowledge. 🔸Scalability and Consistency: Event-driven architecture and CQRS can help manage data integrity and optimize scalability. 🔰 Implementing DDD for Microservices: 1️⃣ Understand the Domain: Collaborate with domain experts to identify key concepts. 2️⃣ Define Bounded Contexts: Ensure each microservice has a clear responsibility. 3️⃣ Use DDD Patterns: Apply entities, value objects, aggregates, and repositories. 4️⃣ Adapt Architecture: Embrace iterative development and adapt to evolving business needs. 5️⃣ Foster Collaboration: Promote open communication and feedback loops. 🤘 Conclusion: Integrating DDD with microservices leads to more responsive, adaptable, and maintainable systems. For successful implementation, businesses should invest in understanding DDD concepts, maintain clear communication, and prioritize training. By strategically combining DDD with microservices, companies can design systems that cater to current needs and are prepared for future challenges. ♻ #DDD #DomainDrivenDesign #Microservices #SoftwareDevelopment #Backend

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How to engineering distinguished software by 7 golden rules: 1-Apply best practices to ensure about deliveries' quality 2-Follow the Git Flow 3-Have strong principles of code review 4-Write tests as much as business gives you time 5-Be receptive to technical discussions 6-Automate as much as you can, ex: CI/CD 7-Write strong linter rules #software_engineer #flutter #mobile #kotlin #dart #java

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Technique to #improve_performance when using LINQ to Entities 💡 : 1-10. Efficient Queries 1- Use AsNoTracking() - to avoid tracking entities that will not need to be modified. 2- Avoid early ToList() - try to delay execution to avoid loading data into memory. 3- Select only required columns (Select) - fetch only the columns you need instead of the entire entity. 4- Use Where before Select - optimize the query order to reduce the number of data processed. 5- Reduce the use of .Include() - fetch only the necessary associated entities to avoid overloading. 6- Filter data first - select the results before performing other operations such as OrderBy. 7- Use custom queries (Raw SQL) - in some cases, raw SQL queries are faster. 8- Avoid Contains() on large collections - use custom queries if the collection is large. 9- Reduce multiple database calls - use Batch Queries to fetch data at once. 10- Filter in the database, not in memory - Make sure that all operations are done in the database, not in memory.

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Preparing some new YouTube content ⏳ . I’m working on a new Kotlin series about different concepts such as OOP, FP, design patterns, best practices, DSLs, etc… by building real world projects (No more Fruits and Vegetables example to explain OOP 😆) . . Hopefully the first video will be published tomorrow. . . #android #kotlin #youtube #tutorial #oop #designpatterns

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prepare yourself

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#Laravel Instead of "dd($result)" you can use "->dd()" as a method directly after Eloquent sentence

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PHP 8.4 will be amazing🐘 In #PHP 8.4, you can access properties without using parentheses ()😎 For convenience, you can customize properties with `get` and `set` in class without the need to use any method (getter & setter)😍 Please like, share and write comment for me😁 #php_8_4 #php_84

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skills .. A front-end developer use a variety of hard and soft skills to complete their tasks. They may both use the following skills: Communication: Both types of professionals collaborate with clients, engineers and other developers to complete projects. Problem-solving: A front-end and UI developer may use problem-solving skills to test and refine their designs. A front-end may focus on solving functional problems, while a UI developer may focus on improving visual appearance and user experience. Analytical reasoning: These professionals can use analytical skills to gather data and create their designs. In addition to these skills, a front end-developer may use the following: Coding skills: Front-end developers use a variety of coding skills and programming languages, such as HTML and JavaScript, to write and design websites and applications. Testing and debugging skills: Front-end developers can use testing skills to run code and correct issues. Search engine optimization (SEO): A front-end developer may specialize in SEO to ensure search engines find a website and show it in the search engine results. A UI developer may also need these skills: Research skills: A UI developer designs a website to reach a client's target audience. This may involve conducting market research to analyze what designs and elements an audience prefers. Graphic design: These professionals need visual skills and graphic design knowledge to create visually appealing websites. Creativity: A UI designer may use creativity to create unique designs. Article link 🔗 = https://lnkd.in/gHBf-huD.

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A simple object oriented programming "OOP" project. npx 6z0m9t-object_oriented_programming_oop_mybank -In the OOP My Bank project, I have three main files: account.ts: This file contains the definition of the Account class, which represents a bank account. It includes properties such as balance, account number, and full name, along with methods for depositing, withdrawing, and retrieving account information. cli.ts: This file contains the CLI class, which represents the command-line interface for interacting with the bank application. It allows users to create accounts, deposit money, withdraw money, check balances, and view account summaries. It utilizes the inquirer library for user input and provides a structured menu-based interface. index.ts: This file serves as the entry point of the application. It creates an instance of the CLI class and starts the application by calling the start method. It orchestrates the flow of the application, prompting users to create accounts and then presenting the main menu for interacting with their accounts. Overall, these files work together to create a simple banking application with object-oriented principles, providing users with the ability to manage their accounts via a command-line interface. In this project, I've ensured that only alphabetical characters are accepted for the name input & same that only numerical digits are accepted for the deposit / withdrawal input.. -Any project can be improved with deeper knowledge and understanding. - I am grateful to the Gov. Sindh Initiative program for providing me with opportunities to learn IT programs. - Thanks to honorable Gov. Sindh & all teachers. -Author: Azmat Ali.

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Before you start creating your project as frontend, you need three things: 1- business documentation about your project 2- PSD your project 3- APIs

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Most interview Questions for junior Laravel Developer : // Part 1 // ## 1. **Validation** in Laravel: Validation in Laravel is used to check the validity of user input data before processing it or saving it to the database. You can use built-in validation rules or create custom ones. ## 2. **Eloquent ORM** in Laravel: Eloquent ORM is the object-relational mapping system in Laravel that simplifies database interaction using models instead of directly writing SQL queries. ## 3. **OOP**: Object-oriented programming (OOP) is a programming methodology based on creating programs that consist of objects, which contain properties and methods to represent and handle data. ## 4. **Difference between session and cookies** in Laravel: - **Session**: Stores data on the server and is used to track user state across multiple sessions. - **Cookies**: Stores data in the user's browser and is used to track information across different visits. ## 5. **Template Engine** in Laravel: Blade is the template engine in Laravel that facilitates creating HTML templates with dynamic features. It allows you to embed code and logic within HTML easily. ## 6. **Difference between a class and an object**: - **Class**: A blueprint that contains definitions, properties, and methods that can be used to create objects. - **Object**: An instance of a class, which can use the properties and methods defined in the class. ## 7. **Main components of the Laravel Framework**: - **Routing**: For handling request routing. - **Controller**: For managing application logic. - **Model**: For interacting with the database. - **View**: For displaying data. - **Middleware**: For processing requests before they reach the application. - **Service Container**: For managing application dependencies. ## 8. **Types of Routing** in Laravel: - **GET**: For fetching data. - **POST**: For sending data. - **PUT**: For updating data. - **DELETE**: For deleting data. - Others such as PATCH and OPTIONS. ## 9. **Creating a Controller** in Laravel: You can create a controller using the Artisan command: ```bash php artisan make:controller NameController ``` ## 10. **Middleware** in Laravel: Middleware is an intermediary used to process incoming requests before they reach the application. It can be used for authentication checks, permissions, and other request handling. ## 11. **Types of Models** in Laravel: Models in Laravel represent entities in the database. They can be a base model (Base Model) or extended to create custom models for specific types of data. ## 12. **Creating a Migration** in Laravel: You can create a migration using the Artisan command: ```bash php artisan make:migration create_table_name_table ``` ## 13. **Function of a Facade** in Laravel: A facade is an interface that simplifies access to the services available in Laravel in a streamlined and organized way. It provides a shortcut to accessing application services.

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𝗦𝘁𝗲𝗽-𝗯𝘆-𝗦𝘁𝗲𝗽: 𝗕𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗬𝗼𝘂𝗿 𝗙𝗶𝗿𝘀𝘁 𝗦𝗶𝗺𝗽𝗹𝗲 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 𝗔𝗽𝗽 Feeling ready to get your hands dirty and code your first Android App? Here's a basic roadmap to get you started: 𝟭. 𝗦𝗲𝘁 𝘂𝗽 𝘆𝗼𝘂𝗿 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗘𝗻𝘃𝗶𝗿𝗼𝗻𝗺𝗲𝗻𝘁: Download and install Android Studio and the Android SDK. Create a New Project: Choose a suitable template (e.g. Empty Activity) and name your project. 𝟮. 𝗗𝗲𝘀𝗶𝗴𝗻 𝘁𝗵𝗲 𝗔𝗽𝗽 𝗟𝗮𝘆𝗼𝘂𝘁: Use the Layout Editor in Android Studio to visually design your app's user interface. 𝟯. 𝗪𝗿𝗶𝘁𝗲 𝗖𝗼𝗱𝗲 𝗳𝗼𝗿 𝗙𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝗮𝗹𝗶𝘁𝘆: Write code in Java/Kotlin to handle user interactions, data processing, and other functionalities. 𝟰. 𝗧𝗲𝘀𝘁 𝗮𝗻𝗱 𝗗𝗲𝗯𝘂𝗴: Use the built-in emulator or connect a real device to test your app and fix any errors. 𝟱. 𝗥𝘂𝗻 𝘁𝗵𝗲 𝗔𝗽𝗽: Once everything works as intended, launch your app on your device or emulator. 𝗧𝗵𝗶𝘀 𝗶𝘀 𝗮 𝘀𝗶𝗺𝗽𝗹𝗶𝗳𝗶𝗲𝗱 𝗽𝗿𝗼𝗰𝗲𝘀𝘀, 𝗯𝘂𝘁 𝗶𝘁 𝗽𝗿𝗼𝘃𝗶𝗱𝗲𝘀 𝗮 𝘀𝘁𝗮𝗿𝘁𝗶𝗻𝗴 𝗽𝗼𝗶𝗻𝘁. There are many resources available online to guide you through more complex app development.

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💻 Laravel Developers: Efficient JSON Handling with json_encode() and json_decode() 🔍In web development, handling JSON data is essential, especially for APIs. Laravel makes this simple with json_encode() and json_decode() functions: 🔄 json_encode(): Turns PHP arrays or objects into JSON strings. 🔁 json_decode(): Converts JSON strings back to PHP arrays or objects. #Laravel #JSON #APIs #WebDevelopment #PHP #ProgrammingTips #apidevelopment #mushabberul #sabbir #softwaredeveloper #softwareengineer For instance:

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Three Types of Concurrency in Swift : Structural Concurrency: Execute one after another & if throws error , cancel & return . UnStructural Concurrency: Execute parallel but if throws 1 error, another will be canceled , then return to Parent Task . Detached Concurrency: Execute independently with priority #swift #concurrency #Task #ios #swiftUI #async #await

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