Add file handlers, s3 support

src/file/file.controller.ts

@@ -0,0 +1,73 @@
+import { FastifyReply, FastifyRequest } from "fastify";
+
+import { generateId } from "../utils/id";
+import { deleteFileS3, getFileUrlS3, uploadFileS3 } from "../utils/s3";
+import { createFile, getFile } from "./file.service";
+
+export async function fileUploadHandler(
+  req: FastifyRequest,
+  res: FastifyReply
+) {
+  const file = await req.file();
+
+  if (!file) return res.code(400).send({ error: "file not found in the body" });
+
+  try {
+    const chunks = [];
+    for await (const chunk of file.file) {
+      chunks.push(Buffer.from(chunk));
+    }
+
+    const fileData = Buffer.concat(chunks);
+    const key = generateId();
+    await uploadFileS3(key, fileData);
+
+    const fileRec = await createFile(
+      key,
+      file.filename,
+      file.mimetype,
+      req.user.tenantId
+    );
+
+    return res.code(201).send(fileRec);
+  } catch (err) {
+    return err;
+  }
+}
+
+export async function fileDownloadHandler(
+  req: FastifyRequest,
+  res: FastifyReply
+) {
+  const { fileId } = req.params as { fileId: string };
+
+  try {
+    const file = await getFile(fileId, req.user.tenantId);
+    if (file === null)
+      return res.code(404).send({ error: "resource not found" });
+
+    const signedUrl = await getFileUrlS3(file.pid, file.name);
+    return res.code(200).send({ url: signedUrl });
+  } catch (err) {
+    return err;
+  }
+}
+
+export async function deleteFileHandler(
+  req: FastifyRequest,
+  res: FastifyReply
+) {
+  const { fileId } = req.params as { fileId: string };
+
+  try {
+    const file = await getFile(fileId, req.user.tenantId);
+    if (file === null)
+      return res.code(404).send({ error: "resource not found" });
+
+    await deleteFileS3(file.pid);
+    await file.deleteOne();
+    return res.code(204).send();
+  } catch (err) {
+    return err;
+  }
+}