feat: Allow ImageTransform functions to be async

Closes #88. This change allows transform functions to return a Promise as well.
JonasKruckenberg · May 7, 2021 · da3e726 · da3e726
1 parent d1e03d1
commit da3e726
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/packages/core/src/lib/apply-transforms.ts b/packages/core/src/lib/apply-transforms.ts
@@ -15,7 +15,9 @@ export async function applyTransforms(transforms: ImageTransformation[], image:
         image.withMetadata()
     }
 
-    image = transforms.reduce((img, transform) => transform(img), image)
+    for (const transform of transforms) {
+        image = await transform(image)
+    }
 
     return {
         image,

diff --git a/packages/core/src/types.ts b/packages/core/src/types.ts
@@ -11,7 +11,7 @@ export type TransformFactory<A = {}> = (metadata: Partial<ImageConfig & A>, ctx:
 
 export type TransformOption<A = {},T = any> = (metadata: Partial<ImageConfig & A>, image: Sharp) => T | undefined
 
-export type ImageTransformation = (image: Sharp) => Sharp
+export type ImageTransformation = (image: Sharp) => Sharp | Promise<Sharp>
 
 export interface TransformResult {
     image: Sharp,