How do you use Factory Pattern alongside DI?
Updated Apr 28, 2026
Short answer
When you need to construct objects at runtime using data unknown at startup, DI injects a Factory rather than the object itself.
Deep explanation
DI containers are great for wiring static graphs. But if an object requires dynamic parameters (like a User ID from a payload) plus injected services (like a Logger), you inject an IOrderFactory. The factory takes the runtime parameters, requests the static services from the container, and returns the constructed object.
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