feat: add util

ipfs · SgtPooki · Mar 5, 2025 · Feb 1, 2025 · Feb 1, 2025 · Feb 1, 2025
commit 1eb486fb2c0b7379be28693964d158a1bb7f6e5e
@@ -5,6 +5,7 @@ import * as Task from '../task.js'
 /**
  * @typedef {import('ipfs').IPFSService} IPFSService
  * @typedef {import('kubo-rpc-client').KuboRPCClient} KuboRPCClient
+ * @typedef {import('../../lib/files').FileStream} FileStream
  * @typedef {import('./actions').Ext} Ext
  * @typedef {import('./actions').Extra} Extra
  */
@@ -316,3 +317,22 @@ export const ensureMFS = (store) => {
     throw new Error('Unable to perform task if not in MFS')
   }
 }
+
+/**
+ * Get bytes from file
+ * @param {FileStream} file
+ * @returns {Promise<Uint8Array<ArrayBuffer>>}
+ */
+export const fileToByteArray = (file) => {
+  return new Promise((resolve, reject) => {
+    const reader = new FileReader()
+    reader.onloadend = () => {
+      const arrayBuffer = reader.result
+      if (arrayBuffer === null) resolve(new Uint8Array([]))
+      const byteArray = new Uint8Array(arrayBuffer)
+      resolve(byteArray)
+    }
+    reader.onerror = (error) => reject(error)
+    reader.readAsArrayBuffer(file.content)
+  })
+}