appwrite/docs/examples/1.8.x/server-kotlin/kotlin/storage/get-file-preview.md

import io.appwrite.Client
import io.appwrite.coroutines.CoroutineCallback
import io.appwrite.services.Storage
import io.appwrite.enums.ImageGravity
import io.appwrite.enums.ImageFormat

val client = Client()
    .setEndpoint("https://<REGION>.cloud.appwrite.io/v1") // Your API Endpoint
    .setProject("<YOUR_PROJECT_ID>") // Your project ID
    .setSession("") // The user session to authenticate with

val storage = Storage(client)

val result = storage.getFilePreview(
    bucketId = "<BUCKET_ID>",
    fileId = "<FILE_ID>",
    width = 0, // optional
    height = 0, // optional
    gravity = ImageGravity.CENTER, // optional
    quality = -1, // optional
    borderWidth = 0, // optional
    borderColor = "", // optional
    borderRadius = 0, // optional
    opacity = 0, // optional
    rotation = -360, // optional
    background = "", // optional
    output = ImageFormat.JPG, // optional
    token = "<TOKEN>" // optional
)