JavaBallerinaJavascript4+
DevToolBallerina Static Code Analysis Tool (Compiler Developer Tool)
π Introduction About the project The Ballerina Scan Tool is a static security analysis feature built directly into the Ballerina compiler . In the modern software landscape, security is not an afterthought but a critical component of the development lifecycle ("shifting left"). I created this tool to provide Ballerina developers with a seamless, powerful way to detect potential security vulnerabilities directly within their existing workflow. By integrating it into the compiler, the tool analyzes source code for common security flaws like hardcoded secrets and SQL injection risks during the build process itself. The result is a frictionless security audit that helps developers write more secure, reliable code from the very beginning. [Image: The Ballerina logo next to a security shield icon.] π€ Problem space Problems to Solve/Requirements to Create Ballerina developers, like developers in any language, need an automated and reliable way to identify security vulnerabilities before code is deployed. Relying on manual reviews or external, often complex, security tools creates friction and can let critical issues slip through to production. π Problem: Security Vulnerabilities are Often Detected Too Late Common security flaws such as SQL injection, path traversal, hardcoded secrets, and insecure use of APIs are frequently missed during manual code reviews. When these issues are discovered later in the development cycle (e.g., during QA or by a dedicated security team), they are significantly more expensive and time-consuming to fix. In the worst-case scenario, they are discovered in production after a security breach. Current solution Without an integrated tool, developers rely on a combination of solutions: Manual Peer Reviews: Relying on security-conscious team members to spot vulnerabilities, which is inconsistent and not scalable. External SAST Tools: Using third-party Static Application Security Testing (SAST) tools that require separate configuration, licensing, and integration into the CI/CD pipeline, adding complexity and slowing down development. [πΈ A code snippet showing a Ballerina function with a clear SQL injection vulnerability, where user input is directly concatenated into a database query string.] How do we know it is a problem? Industry-wide data from sources like the OWASP Top 10 consistently shows that these types of vulnerabilities remain the most common causes of security breaches. The high cost of post-deployment bug fixes is a well-documented metric in software engineering, with security flaws being among the most critical and expensive. Goals Company objective π― To provide a secure-by-default development experience for Ballerina users, empowering them to build robust and reliable network applications with confidence. Project goals Project goal: Integrate a powerful static security analysis engine directly into the Ballerina compiler to make security scanning a default part of the build process. Project goal: Detect a comprehensive set of common security vulnerabilities, including SQL injection, path traversal, hardcoded secrets, and insecure API usage. Project goal: Provide clear, actionable diagnostics that pinpoint the exact location of a vulnerability and explain the potential risk, enabling developers to fix issues quickly. User Stories π€ Ballerina Developer A software developer building services and integrations with Ballerina. Their primary focus is on delivering functionality while adhering to security best practices. Goals: Write secure code without needing to be a security expert; get immediate feedback on potential vulnerabilities; ensure code passes security checks in the CI pipeline. Needs: Automated security scanning that requires zero configuration; clear error messages integrated into their build output and IDE. π€ DevOps/Security Engineer An engineer responsible for maintaining the security and integrity of the CI/CD pipeline and production environments. Goals: Enforce security policies automatically; prevent vulnerable code from being deployed; generate security reports for compliance and auditing. Needs: A tool that can be easily integrated into CI/CD workflows (e.g., GitHub Actions, Jenkins); the ability to fail builds based on the severity of vulnerabilities found. π Design space UI Design The "UI" for the Ballerina Scan Tool is its output in the developer's terminal during the build process. The design is intentionally minimalist and integrated, presenting security warnings alongside standard compilation errors. The goal is to make security feedback a natural part of the developer's existing workflow. βοΈ CLI Output During bal build Shell Compiling source
my_project/main.bal
WARNING [main.bal:(25:12,25:52)] CWE-89: SQL INJECTION
hint: The vulnerability is detected at the 'query' method call. The query is constructed using a template expression that contains a vulnerable expression.
...
WARNING [main.bal:(42:8,42:25)] CWE-798: USE OF HARDCODED CREDENTIALS
hint: Hardcoded credential "admin123" is detected. Avoid hardcoding credentials. Use environment variables or a secret vault.
Run 'bal build' with the '--cloud=docker' option to build the Docker image.
This design provides the file, line number, vulnerability type (mapped to CWE), and a helpful hint for remediation directly in the build log. Development Phase Technology Stack Selection Core Engine - Java (as part of the Ballerina Compiler) Why Java? The Ballerina compiler itself is implemented in Java. Building the scan tool directly within the existing compiler infrastructure allows it to leverage the same Abstract Syntax Tree (AST) and semantic models. This ensures maximum accuracy, high performance (as the code is only parsed once), and perfect synchronization with the language's evolution. High-Level Architecture The Ballerina Scan Tool is not a separate application but a compiler phase . [Diagram: A flowchart of the Ballerina compilation process. It shows stages like "Lexing & Parsing -> AST Generation" -> "Semantic Analysis" -> "Code Generation". A new box labeled "Security Analysis (Scan Tool)" is inserted after "Semantic Analysis", showing that it operates on the fully analyzed and type-checked AST before code is generated.] Key Features of the Software Deep Compiler Integration Description: Unlike external linters or scanners that re-parse source code, the Ballerina Scan Tool operates directly on the compiler's internal representation (the AST and semantic model). This gives it a complete and accurate understanding of the code, including types, dependencies, and control flow, which allows it to detect complex vulnerabilities with a very low false-positive rate. Comprehensive Vulnerability Detection Description: The tool is pre-loaded with checks for a wide range of common and critical security vulnerabilities as categorized by CWE (Common Weakness Enumeration). This includes, but is not limited to: SQL Injection (CWE-89) Path Traversal (CWE-22) Hardcoded Credentials (CWE-798) Use of Weak Cryptographic Algorithms (CWE-327) CI/CD Pipeline Integration Description: Since the scan tool runs as part of the standard bal build command, integrating it into a CI/CD pipeline is trivial. A pipeline that already builds the Ballerina project will automatically run the security scan. The build can be configured to fail if any security warnings are detected, thus acting as an automated security gate. Challenges Faced and Solutions Problem: High Rate of False Positives Early static analysis tools are often plagued by false positives (flagging safe code as vulnerable), which leads to developer frustration and causes them to ignore the tool's output altogether. Solution: Leveraging the Semantic Model By integrating directly with the compiler, the tool does more than just pattern-match on source text. It uses the compiler's semantic model to perform data-flow analysis. This means it can trace the flow of data from potentially insecure sources (like an HTTP request) to sensitive operations (like a database query). This contextual understanding allows it to differentiate between a hardcoded string and a dangerous user-provided input, drastically reducing false positives and making its warnings highly reliable. Future Vision / next steps Long-term vision To expand the tool's capabilities beyond security to encompass a full suite of code quality, performance, and reliability checks, making the Ballerina compiler the central hub for ensuring code excellence. What's next? Custom Rule Sets: Allow users and organizations to define their own custom security and style rules in a configuration file. IDE Quick-Fixes: Enhance the Ballerina VS Code extension to provide one-click suggestions to automatically fix the vulnerabilities detected by the scan tool. SARIF Report Generation: Add an option to export scan results in the SARIF format for richer integration with platforms like GitHub Advanced Security and other third-party dashboards.
reacttailwindshadcn3+
Web DevelopmentSkillmentor Web App (E-Learning)
π Introduction About the project Short overview of the project including the topic, the industry and the goals. Explain what you did, why you did it, and what were the results. Keep this introduction brief. [Describe the image: 'Calendar view of the [name] app'] π€ Problem space Problems to solve/Requirements to Create [Top level overview of Clients' Problems or Requirements. 2-3 lines. If it's your project, hypothetically imagine a potential client. π [Problem/Requirement] Example: Users cannot sort their time entries by date [Write an extended problem statement] Current solution [Describe how users are currently solving this problem. How it is solved in the product] [πΈ Describe what's on the screenshot] [πΈ Describe what's on the screenshot] How do we know it is a problem Evidence / proof (user feedback, metrics, etc.) π [Problem] [Write an extended problem statement] [Write an extended problem statement] Current solution [Describe how users are currently solving this problem. How it is solved in the product] [πΈ Describe what's on the screenshot] How do we know it is a problem Evidence / proof (user feedback, metrics, etc.) π£NOTE: Feel Free to Add Enough Problems/Requirements by using the same structure Why solve these problems? (Highly Optional) [Summarize why it is important to address these problems, and why it should be done now.] [Reason: β¦] [Reason: β¦] [User satisfaction matrix] π‘ User satisfaction matrix shows where is given solution is regarding user satisfaction and importance of a user need, vs. where you want it to be after this project is implemented. Goals Company objective π― π‘ Quote the company objective that your project will help achieve. For example: To Create an Modern E-Commerce Platform and Admin dashboard to manage sales [Main company objective you're contributing to with this project] Project goals π‘ List goals you and your team established for this project. You can briefly explain how they connect with the high-level company objective. Project goal: β¦ Ex: Built a ShadCN based UI ecosystem to maintain the consistency and also the modularity of each component Project goal: β¦ User Stories οΏ½οΏ½ List types of user's needs that you are going to fulfill through the project [User type] Example: Visitor 1 [Write a short description of this user. Ex: The Visitor 1 is viewing the website to find different types of clothes that are displayed] Goals:β¦ ex: Find out clothes that are listed in the website Needs:β¦ ex: The necessary filtering and Modular Navigation for Each Gender and Category Other characteristic:β¦ [User type] Example: Admin [Write a short description of this user] Goals:β¦ Needs:β¦ Other characteristic:β¦ π Design space UI Design [Describe the UI Design and flow] Low-fidelity Wireframe π‘ Start showing the progress of your design. Share key concepts, sketches, and low-fidelity mockups. Select only key screens to not overwhelm the viewers. Use digital sketches (examples below were created in excalidraw Excalidraw ). [Design concept] [Describe your concept] β¦. [βοΈ Title of your sketch] High-fidelity design π‘ Share high-fidelity mockups for key flows. You can also attach the prototype or a video walkthrough. [βοΈ Title of your image] Design system π¨ π‘ If you've created or used a design system for this project like ShadCN or Custom Design System, you can add it here [Describe why you needed to use a design system and how you utilized it to develop.] Development Phase Technology Stack Selection π‘ Discuss why the Technologies and Tools you used are chosen [EXAMPLE] 1. Frontend - React.js with TanStack Query Why React.js? Component-Based Architecture : Enables reusable UI components, making the frontend modular and maintainable. Efficient UI Updates : Uses a virtual DOM for faster rendering and smooth user interactions. Rich Ecosystem : Vast library support and active community ensure continued improvements. Why TanStack Query for Data Fetching? Automatic Data Synchronization : Keeps inventory data fresh without excessive API calls. Background Fetching & Caching : Minimizes unnecessary requests by caching data and refetching only when needed. Optimistic Updates : Ensures real-time responsiveness by updating UI before the server confirms changes. Error Handling & Retry Logic : Manages network issues gracefully without breaking the user experience. High-Level Architecture Diagram π‘ Include any High-Level Architecture Diagram and Describe about it [Add the Architecture Diagram Description Hereβ¦ Ex: Built a serverless microservices-based system with an API Gateway managing access to different functions and services] Entity-Extended Relationship Diagram or Class Diagram or Any other Detailed Diagrams [Add the Architecture Diagram Description Hereβ¦ Ex: Built a serverless microservices-based system with an API Gateway managing access to different functions and services] Key Features of the Software π‘ List down the Key Features you implemented in the Software [Feature 1βEx: Inventory Management] [Description and the Decisions made in the development here.] EXAMPLE: 1. Database Selection & Schema Design (MongoDB) Decision: Chose MongoDB as the database for its flexibility in handling dynamic inventory data (e.g., varying product attributes, stock levels, categories). Implementation: Designed a schema with embedded documents where possible (e.g., storing stock details within product documents to reduce query complexity). Used indexes on frequently searched fields (e.g., productName , category , SKU ). ] Challenges Faced and Solutions π‘ Write down the challenges you faced and how you solved [EXAMPLE] Problem: In our inventory management system, multiple users were updating stock levels simultaneously, causing race conditions and inconsistent data . Additionally, frequent database writes from high-traffic transactions led to performance bottlenecks . [EXAMPLE] Solution: We implemented Optimistic Concurrency Control (OCC) and WebSockets ( Socket.io ) to handle real-time updates efficiently: Versioning in MongoDB : Used a version field to track changes and prevent race conditions. Updates were applied only if the stored version matched the client's version. WebSocket Notifications : Instead of repeatedly polling the database, we pushed live updates to clients using WebSockets. Redis Caching for Stock Reads : Frequently accessed stock data was cached in Redis , reducing unnecessary database queries. Future Vision / next steps οΏ½οΏ½ Showcase how you'd envision next iterations of the project, what activities you're planning for V.2, V.3, etc. Long-term vision β¦ β¦ What add to UI, activities
Test project v2 (E commerce)
π Introduction About the project Short overview of the project including the topic, the industry and the goals. Explain what you did, why you did it, and what were the results. Keep this introduction brief. [Describe the image: 'Calendar view of the [name] app'] π€ Problem space Problems to solve/Requirements to Create [Top level overview of Clients' Problems or Requirements. 2-3 lines. If it's your project, hypothetically imagine a potential client. π [Problem/Requirement] Example: Users cannot sort their time entries by date [Write an extended problem statement] Current solution [Describe how users are currently solving this problem. How it is solved in the product] [πΈ Describe what's on the screenshot] [πΈ Describe what's on the screenshot] How do we know it is a problem Evidence / proof (user feedback, metrics, etc.) π [Problem] [Write an extended problem statement] [Write an extended problem statement] Current solution [Describe how users are currently solving this problem. How it is solved in the product] [πΈ Describe what's on the screenshot] How do we know it is a problem Evidence / proof (user feedback, metrics, etc.) π£NOTE: Feel Free to Add Enough Problems/Requirements by using the same structure Why solve these problems? (Highly Optional) [Summarize why it is important to address these problems, and why it should be done now.] [Reason: β¦] [Reason: β¦] [User satisfaction matrix] π‘ User satisfaction matrix shows where is given solution is regarding user satisfaction and importance of a user need, vs. where you want it to be after this project is implemented. Goals Company objective π― π‘ Quote the company objective that your project will help achieve. For example: To Create an Modern E-Commerce Platform and Admin dashboard to manage sales [Main company objective you're contributing to with this project] Project goals π‘ List goals you and your team established for this project. You can briefly explain how they connect with the high-level company objective. Project goal: β¦ Ex: Built a ShadCN based UI ecosystem to maintain the consistency and also the modularity of each component Project goal: β¦ User Stories οΏ½οΏ½ List types of user's needs that you are going to fulfill through the project [User type] Example: Visitor 1 [Write a short description of this user. Ex: The Visitor 1 is viewing the website to find different types of clothes that are displayed] Goals:β¦ ex: Find out clothes that are listed in the website Needs:β¦ ex: The necessary filtering and Modular Navigation for Each Gender and Category Other characteristic:β¦ [User type] Example: Admin [Write a short description of this user] Goals:β¦ Needs:β¦ Other characteristic:β¦ π Design space UI Design [Describe the UI Design and flow] Low-fidelity Wireframe π‘ Start showing the progress of your design. Share key concepts, sketches, and low-fidelity mockups. Select only key screens to not overwhelm the viewers. Use digital sketches (examples below were created in excalidraw Excalidraw ). [Design concept] [Describe your concept] β¦. [βοΈ Title of your sketch] High-fidelity design π‘ Share high-fidelity mockups for key flows. You can also attach the prototype or a video walkthrough. [βοΈ Title of your image] Design system π¨ π‘ If you've created or used a design system for this project like ShadCN or Custom Design System, you can add it here [Describe why you needed to use a design system and how you utilized it to develop.] Development Phase Technology Stack Selection π‘ Discuss why the Technologies and Tools you used are chosen [EXAMPLE] 1. Frontend - React.js with TanStack Query Why React.js? Component-Based Architecture : Enables reusable UI components, making the frontend modular and maintainable. Efficient UI Updates : Uses a virtual DOM for faster rendering and smooth user interactions. Rich Ecosystem : Vast library support and active community ensure continued improvements. Why TanStack Query for Data Fetching? Automatic Data Synchronization : Keeps inventory data fresh without excessive API calls. Background Fetching & Caching : Minimizes unnecessary requests by caching data and refetching only when needed. Optimistic Updates : Ensures real-time responsiveness by updating UI before the server confirms changes. Error Handling & Retry Logic : Manages network issues gracefully without breaking the user experience. High-Level Architecture Diagram π‘ Include any High-Level Architecture Diagram and Describe about it [Add the Architecture Diagram Description Hereβ¦ Ex: Built a serverless microservices-based system with an API Gateway managing access to different functions and services] Entity-Extended Relationship Diagram or Class Diagram or Any other Detailed Diagrams [Add the Architecture Diagram Description Hereβ¦ Ex: Built a serverless microservices-based system with an API Gateway managing access to different functions and services] Key Features of the Software π‘ List down the Key Features you implemented in the Software [Feature 1βEx: Inventory Management] [Description and the Decisions made in the development here.] EXAMPLE: 1. Database Selection & Schema Design (MongoDB) Decision: Chose MongoDB as the database for its flexibility in handling dynamic inventory data (e.g., varying product attributes, stock levels, categories). Implementation: Designed a schema with embedded documents where possible (e.g., storing stock details within product documents to reduce query complexity). Used indexes on frequently searched fields (e.g., productName , category , SKU ). ] Challenges Faced and Solutions π‘ Write down the challenges you faced and how you solved [EXAMPLE] Problem: In our inventory management system, multiple users were updating stock levels simultaneously, causing race conditions and inconsistent data . Additionally, frequent database writes from high-traffic transactions led to performance bottlenecks . [EXAMPLE] Solution: We implemented Optimistic Concurrency Control (OCC) and WebSockets ( Socket.io ) to handle real-time updates efficiently: Versioning in MongoDB : Used a version field to track changes and prevent race conditions. Updates were applied only if the stored version matched the client's version. WebSocket Notifications : Instead of repeatedly polling the database, we pushed live updates to clients using WebSockets. Redis Caching for Stock Reads : Frequently accessed stock data was cached in Redis , reducing unnecessary database queries. testtesttesttesttest
Tech Firm Engineers Begin Their Journey
.06fc7c84.png&w=640&q=75)
.7960c87f.png&w=640&q=75)
.87bbe8e3.png&w=640&q=75)
.32529091.jpg)
Get visibility from recruiters & peers
Webinar
View Recording
Flexibility - learn on your time
Personal mentor an career coaching video calls to keep you on track
