Viper Configuration

What problem does it solve?

Centralizes and standardizes application configuration for Go services so settings are discovered, merged, and prioritized correctly across files, environment variables, command-line flags, and defaults to avoid configuration drift and runtime errors.

Core Features & Use Cases

• Config discovery & merging: Locate and merge multiple config files (environment-specific) with sensible defaults.
• Env and flag binding: Bind environment variables with prefixes and replace keys, and bind Cobra flags to configuration keys.
• Struct mapping & validation: Unmarshal configuration into typed structs and validate required values, with optional live watching for reloads.
• Use Case: Initialize Viper in a Go backend that uses Cobra for CLI flags and deploys to both local development (SQLite) and production (PostgreSQL) environments.

Quick Start

Use the Viper Configuration skill to initialize Viper, load config files, bind environment variables and Cobra flags, unmarshal into structs, and validate required settings for your Go application.