Diff in Getx put vs lazy put

Overview

In GetX,

Get.put()

Get.lazyPut()

Get.put() — Eager Instantiation

Creates the instance immediately when

put()

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// Instance created RIGHT NOW
final controller = Get.put(HomeController());

// With tag (for multiple instances of same type)
Get.put(ProductController(), tag: 'featured');
Get.put(ProductController(), tag: 'trending');

// permanent = true → never disposed
Get.put(AuthService(), permanent: true);

Use when:

• You need the controller immediately on app/screen start
• You want the controller ready before any widget reads it

Get.lazyPut() — Lazy Instantiation

Creates the instance only when first accessed via

Get.find()

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// Instance NOT created yet — just registered
Get.lazyPut<HomeController>(() => HomeController());

// fenix: true → recreate if disposed and accessed again
Get.lazyPut<ApiService>(() => ApiService(), fenix: true);

// With tag
Get.lazyPut<ProductController>(
  () => ProductController(),
  tag: 'featured',
);

// First call to Get.find() triggers creation
final controller = Get.find<HomeController>(); // ← created here

Use when:

• Inside Bindings (standard practice)
• When controller is optional and may not always be needed
• To improve app startup performance

Comparison Table

Get.put()

Get.lazyPut()

Get.find()

Get.put(Controller())

Get.lazyPut(() => Controller())

fenix: true — Recreate After Dispose

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Get.lazyPut<CartController>(() => CartController(), fenix: true);

// User opens cart → CartController created
Get.find<CartController>();

// User leaves cart → CartController disposed

// User opens cart again → CartController recreated (fenix: true)
Get.find<CartController>(); //新 instance created again

Without

fenix: true

Which to Use?

Get.put(permanent: true)

Get.lazyPut()

Get.put()

Get.lazyPut()

Get.lazyPut(fenix: true)

Best Practice: Use

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Get.put()

for permanent app-level dependencies and

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Get.lazyPut()

inside Bindings for screen-level controllers.