added download-file util

packages/server/src/utils/download-file/index.js

@@ -0,0 +1,33 @@
+import fs from "fs"
+import path from "path"
+import axios from "axios"
+
+export default async (payload) => {
+    let { url, destination } = payload
+
+    // if destination path is not provided, use cache folder
+    if (!destination) {
+        destination = path.resolve(global.uploadCachePath, path.basename(url))
+    }
+
+    console.log(destination)
+
+    const writer = fs.createWriteStream(destination)
+
+    const response = await axios({
+        url,
+        method: "GET",
+        responseType: "stream"
+    })
+
+    response.data.pipe(writer)
+
+    return new Promise((resolve, reject) => {
+        writer.on("finish", () => resolve({
+            destination,
+            delete: () => fs.unlinkSync(destination),
+            read: () => fs.readFileSync(destination),
+        }))
+        writer.on("error", reject)
+    })
+}