diff --git a/README.md b/README.md
index 7f7392b..001d087 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ diContainer.register(
     asyncDisposePriority: 10, // lower value means its disposed earlier
     asyncInit: 'init',
     asyncDispose: 'dispose',
-    eagerInject: true, // this will be constructed and cached immediately. Redundant for resolves with `asyncInit` parameter set, as that is always resolved eagerly.
+    eagerInject: true, // this will be constructed and cached immediately. Redundant for resolves with `asyncInit` parameter set, as that is always resolved eagerly. If a string is passed, then additional synchronous method will be invoked in addition to constructor on injection.
   }),
 )
 
diff --git a/lib/awilixManager.ts b/lib/awilixManager.ts
index 1647548..2cd3cde 100644
--- a/lib/awilixManager.ts
+++ b/lib/awilixManager.ts
@@ -7,7 +7,7 @@ declare module 'awilix' {
     asyncInitPriority?: number // lower means it gets initted earlier
     asyncDispose?: boolean | string
     asyncDisposePriority?: number // lower means it gets disposed earlier
-    eagerInject?: boolean
+    eagerInject?: boolean | string
     enabled?: boolean
   }
 }
@@ -76,7 +76,10 @@ export function eagerInject(diContainer: AwilixContainer) {
   })
 
   for (const entry of dependenciesWithEagerInject) {
-    diContainer.resolve(entry[0])
+    const resolvedComponent = diContainer.resolve(entry[0])
+    if (typeof entry[1].eagerInject === 'string') {
+      resolvedComponent[entry[1].eagerInject]()
+    }
   }
 }
 
diff --git a/test/awilixManager.spec.ts b/test/awilixManager.spec.ts
index a1a0eca..03d92b6 100644
--- a/test/awilixManager.spec.ts
+++ b/test/awilixManager.spec.ts
@@ -24,6 +24,7 @@ class AsyncDisposeClass {
 }
 
 let isInittedGlobal = false
+let isInittedCustom = false
 let isDisposedGlobal = false
 
 class AsyncInitSetClass {
@@ -64,6 +65,10 @@ class InitSetClass {
   constructor() {
     isInittedGlobal = true
   }
+
+  init() {
+    isInittedCustom = true
+  }
 }
 
 describe('awilixManager', () => {
@@ -107,28 +112,28 @@ describe('awilixManager', () => {
         injectionMode: 'PROXY',
       })
       diContainer.register(
-          'dependency1',
-          asClass(AsyncInitClass, {
-            lifetime: 'SINGLETON',
-            asyncInit: true,
-            enabled: false,
-          }),
+        'dependency1',
+        asClass(AsyncInitClass, {
+          lifetime: 'SINGLETON',
+          asyncInit: true,
+          enabled: false,
+        }),
       )
       diContainer.register(
-          'dependency2',
-          asClass(AsyncInitClass, {
-            lifetime: 'SINGLETON',
-            asyncInit: true,
-            eagerInject: true,
-          }),
+        'dependency2',
+        asClass(AsyncInitClass, {
+          lifetime: 'SINGLETON',
+          asyncInit: true,
+          eagerInject: true,
+        }),
       )
       diContainer.register(
-          'dependency3',
-          asClass(AsyncInitClass, {
-            lifetime: 'SINGLETON',
-            asyncInit: 'asyncInit',
-            enabled: false,
-          }),
+        'dependency3',
+        asClass(AsyncInitClass, {
+          lifetime: 'SINGLETON',
+          asyncInit: 'asyncInit',
+          enabled: false,
+        }),
       )
 
       await asyncInit(diContainer)
@@ -250,27 +255,27 @@ describe('awilixManager', () => {
         injectionMode: 'PROXY',
       })
       diContainer.register(
-          'dependency1',
-          asClass(AsyncDisposeClass, {
-            lifetime: 'SINGLETON',
-            asyncDispose: true,
-            enabled: false,
-          }),
+        'dependency1',
+        asClass(AsyncDisposeClass, {
+          lifetime: 'SINGLETON',
+          asyncDispose: true,
+          enabled: false,
+        }),
       )
       diContainer.register(
-          'dependency2',
-          asClass(AsyncDisposeClass, {
-            lifetime: 'SINGLETON',
-            asyncDispose: true,
-          }),
+        'dependency2',
+        asClass(AsyncDisposeClass, {
+          lifetime: 'SINGLETON',
+          asyncDispose: true,
+        }),
       )
       diContainer.register(
-          'dependency3',
-          asClass(AsyncDisposeClass, {
-            lifetime: 'SINGLETON',
-            asyncDispose: 'asyncDispose',
-            enabled: false,
-          }),
+        'dependency3',
+        asClass(AsyncDisposeClass, {
+          lifetime: 'SINGLETON',
+          asyncDispose: 'asyncDispose',
+          enabled: false,
+        }),
       )
 
       const manager = new AwilixManager({
@@ -367,18 +372,41 @@ describe('awilixManager', () => {
       expect(isInittedGlobal).toBe(true)
     })
 
+    it('injects dependencies eagerly and calls given init method', () => {
+      isInittedGlobal = false
+      const diContainer = createContainer({
+        injectionMode: 'PROXY',
+      })
+      diContainer.register(
+        'dependency1',
+        asClass(InitSetClass, {
+          lifetime: 'SINGLETON',
+          eagerInject: 'init',
+        }),
+      )
+
+      const manager = new AwilixManager({
+        diContainer,
+        eagerInject: true,
+      })
+      manager.executeInit()
+
+      expect(isInittedGlobal).toBe(true)
+      expect(isInittedCustom).toBe(true)
+    })
+
     it('does not inject dependencies eagerly if disabled', () => {
       isInittedGlobal = false
       const diContainer = createContainer({
         injectionMode: 'PROXY',
       })
       diContainer.register(
-          'dependency1',
-          asClass(InitSetClass, {
-            lifetime: 'SINGLETON',
-            eagerInject: true,
-            enabled: false,
-          }),
+        'dependency1',
+        asClass(InitSetClass, {
+          lifetime: 'SINGLETON',
+          eagerInject: true,
+          enabled: false,
+        }),
       )
 
       const manager = new AwilixManager({