How a PHP/Symfony Developer Handles Dependency Injection After Switching to Go

Software engineer Anton, who works primarily in PHP/Symfony and Go, is in the process of migrating a live PHP monolith into Go microservices. In a detailed technical writeup, he reflects on Symfony's dependency injection container as the feature he missed most during the transition. He breaks down six core capabilities of Symfony's DI system — including autowiring, service decoration, lazy loading, and compiled containers — analyzing both what each feature provides and what complexity it conceals. The compiled container, he notes, is particularly valuable because it catches missing or ambiguous dependencies at build time rather than during live requests. Having moved past the comparison, Anton describes what he built in Go instead, emphasizing that his approach is specific to his own codebase and not intended as general advice.