Greetings and welcome! Some tips while using this course Course Content About Go Language Why choose Go? Join our Discord Community Go Playground Installing Go on Linux Installing Go on Windows Installing Go on Mac IDE/Code Editor Installing VS Code on Linux Installing VS Code on Windows Installing VS Code on Mac Setting Up Development environment: Extensions Resources and Connect

What is Git? What is VCS? Installing Git on Linux Installing Git on Windows Installing Git on Mac Github Github and Git : SSH git init git add git commit git remote git push

Course Setup Hello World! Go Run Go Compiler The Standard Library Import statement Data Types Variables Naming Conventions Constants Arithmetic Operations Loop: For (break continue) Loop: For (using as while) Operators Conditions: If else Conditions: Switch Arrays Slices Maps Range Functions Multiple Return Values Variadic functions Defer Panic Recover Exit Init function Basics Quiz Section Summary and Motivation

Closures Recursion Pointers Strings and Runes Formatting Verbs Fmt package Structs Methods Interfaces Struct Embedding Generics Intermediate Quiz 1 Errors Custom Errors String Functions String Formatting Text Templates Regular Expressions Time Epoch Time Formatting / Parsing Random Numbers Number Parsing Intermediate Quiz 2 URL Parsing bufio package Base64 Coding SHA 256/512 Hashes / Hashing / Cryptography / Crypto Package Writing Files Reading Files Line Filters File Paths Directories Temporary Files and Directories Embed Directive Intermediate Quiz 3 Command Line Arguments/Flags Command Line Sub Commands Environment Variables Logging JSON Struct Tags XML Go Extension Type Conversions IO package Math package Math package (Code Examples) Intermediate Quiz 4 Section Summary and Motivation

Goroutines Channels - Introduction Unbuffered Channels and Runtime Mechanism Buffered Channels Channel Synchronization Advanced Quiz 1 Channel Directions Multiplexing using Select Non blocking channel operations Closing Channels Advanced Quiz 2 Context Timers Tickers Worker Pools Wait Groups Advanced Quiz 3 Mutexes Atomic Counters Rate Limiting Rate Limiting - Token Bucket Algorithm Rate Limiting - Fixed Window Counter Rate Limiting - Leaky Bucket Algorithm Stateful Goroutines Sorting Advanced Quiz 4 Testing / Benchmarking Executing Processes / OS Processes / Other Processes Signals Reflect Advanced Quiz 5 Section Summary and Congratulations

Concurrency vs Parallelism Race Conditions Deadlocks RWMutex sync.NewCond sync.Once sync.Pool for select statement Advanced Concurrency Quiz

URL/URI Request Response Cycle What is Frontend Dev/ Client Side What is Backend Dev/ API / Server Side HTTP 1/2/3, HTTPS Internet Quiz

OS Choice for Development What is REST API Endpoints HTTP Client HTTP Server Ports Postman for API Testing Install wrk (Benchmarking Tool) Install Htop Benchmarking an API Modules - go mod init Let's begin making the API/Server Downloading Third Party/External Packages - go get <package link> Let's add HTTP2 and HTTPS to our API https certificates - SSL/TLS Postman for TLS + HTTP2 Requests Using Curl to make http2 request HTTP2/HTTPS/HTTP Connections, TLS Handshake mTLS and Postman Settings Benchmarking HTTP1 vs HTTP2 -H2Load BM Tool Serialization/Deserialization - Marshal/Unmarshal - Encode/Decode API Folder Structure API Planning Stage Basic Routing-CRUD-HTTP Methods Processing Requests Path Params Query Params .gitignore file Multiplexer (mux) Middlewares Middlewares - Security Headers Middlewares - CORS Middlewares - Response Time Middlewares - Compression Middlewares - Rate Limiter Middlewares - HPP Middlewares - Ordering Efficient Middleware Chaining Older Routing Technique (Pre Go 1.22) Getting All/Filtered/One Entry(ies) - GET Adding Single Entry/Multiple Entries - POST Handlers Refactoring MariaDB/MySQL - Introduction MariaDB Installation MariaDB GUI Tool - DBeaver Installation SQL Primer - CRUD - Command Line SQL Primer - CRUD - DBeaver Connect API to SQL Environment Variables (.env file) Creating our SQL Database Updating POST methods to post in Database Updating GET method to Fetch One Entry from Database Updating GET method to Fetch Multiple Entries from Database WHERE 1=1. WHY??? Advanced Filtering Technique - GET - Getting Entries Based on Multiple Criteria Advanced Sort Order Technique - GET - Get Entries Based on Multiple Criteria Updating a 'Complete Entry' - PUT Modifying An Entry - PATCH Improving our PATCH function - Reflect Package Deleting An Entry - DELETE Modernizing Routes - Older Routing Technique and its Limitations Refactoring Mux Using Path Params for Specific Entry Modifying Multiple Entries - PATCH Deleting Multiple Entries - DELETE Modelling Data Refactoring Database Operations Error Handling Struct Tags Data Validation Students Database Creation CRUD for Students Route Students Routes and Testing New Subroutes Getting Student List for a Specific Teacher Getting Student Count for a Specific Teacher Router Refactoring Execs Router Execs Model and Database Table CRUD for Execs Route Passwords - Hashing Authorization and Authentication Cookies, Sessions and JWT Login Route Part 1 - Data Validation Login Route Part 2 - Password Hashing - Argon2 Login Route Part 3 - JWT, Cookie Login Route Refactoring Logout Authentication Middleware - JWT Skipping Routes With Middlewares - PreLogin Update Password Sending Emails - MailHog Forgot Password Reset Password CSRF Adding Pagination Data Sanitization - XSS Middleware Authorization Middleware Sequence Revisited Code Obfuscation Adjustments Before Final Binary API Binary Extensive Benchmarking - Source Code v/s Go Binary v/s Obfuscated Section Summary and Motivation

What are Protocol Buffers? Syntax and Structure of .proto Files Packages in Protocol Buffers Messages in Protocol Buffers Fields in Protocol Buffers Field Types and Data Types Field Numbers Serialization and Deserialization RPC (Remote Procedure Call) in Protocol Buffers Versioning and Backward Compatibility Best Practices for .proto Files Installing Protoc Compiler to Generate Code from .proto Files Protocol Buffers in Practice Protocol Buffers Quiz

What is gRPC? Stubs What is Service? REST vs gRPC Creating Simple gRPC Server Creating a Simple gRPC Client gRPC + TLS Deep Dive - Proto Buf Packages + RPC gRPC Streaming Server Side Stream Client Side Stream BiDirectional Stream Advanced gRPC Features Metadata, Headers and Trailers Postman for gRPC gRPCurl for gRPC Protoc Gen Validate Plugin Combo API (gRPC + REST functionality in One API) Benchmarking Combo API - GHZ BM Tool gRPC Quiz

Intro MongoDB and NoSQL - Introduction MongoDB - Installation MongoDB Compass - GUI for MongoDB MongoDB Primer - CRUD gRPC API Folder Structure and Project Requirements Creating Proto files based on our REST API routes Creating Project's gRPC Server Downloading Known Required Dependencies Connect API to MongoDB Error Handling Adding New Teacher(s) Refactoring Getting Teacher(s) - Filter Getting Teacher(s) - Sorting Getting Teacher(s) - Finalizing Interfaces - Common Filter for all Get RPCs Decode Function Generics - Common Decode for all Get Functions Modifying Teacher(s) Generics - Mapping Helpers - Refactored Deleting Teacher(s) Adding New Student(s) and Exec(s) Getting Student(s) and Exec(s) Modifying Student(s) and Exec(s) Deleting Student(s) and Exec(s) Relationships in NoSQL (MongoDB) Getting Students By Teacher - RPC Getting Student Count By Teacher - RPC Login RPC Update Password RPC Deactivate User RPC Forgot Password RPC Reset Password RPC Response Time Interceptor Rate Limiting Interceptor Authentication Interceptor Logout RPC Authorization gRPC Advantage - No need for HPP, Sanitize, Compression, HTTP Headers, CORS Interceptor Sequence Data Validation using Protoc Gen Validate TLS/SSL + gRPC Code Obfuscation and API Binary Benchmarking

Resources and Connect

Interview Questions and Answers

What we learnt. Where to go from here?

Good Bye and Good Luck! Sincere Request