Go Idioms
Error Handling
// Return errors, never panic in library code
func LoadConfig(path string) (Config, error) {
data, err := os.ReadFile(path)
if err != nil {
return Config{}, fmt.Errorf("reading config %s: %w", path, err)
}
var cfg Config
if err := json.Unmarshal(data, &cfg); err != nil {
return Config{}, fmt.Errorf("parsing config: %w", err)
}
return cfg, nil
}Rules:
- Always wrap errors with context using `fmt.Errorf("cont
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