How to upload a file from the client or from postman to the server?

[willantunes]

What is the best way to be able to send a file to the database? I see most of people are storing tempFiles in the server and then sending it to the DB. I am trying to achieve the first piece which is the temporary storage, but I am getting errors. This is my server.ts:
`// server.ts
import { Application, Router } from "https://deno.land/x/oak/mod.ts";
import { ensureDir } from "https://deno.land/std/fs/mod.ts";
import { join } from "https://deno.land/std/path/mod.ts";
import { crypto } from "https://deno.land/std/crypto/mod.ts";

const app = new Application();
const router = new Router();

const uploadDir = './uploads';
await ensureDir(uploadDir);

router.post('/upload', async (context) => {
if (context.request.hasBody) {
const body = await context.request.body({ type: 'form-data' }).value;
const rspBody = { fields: 0, files: 0 };

for (const [name, value] of body.entries()) {
  if (value instanceof File) {
    const newFileName = crypto.randomUUID();
    const filePath = join(uploadDir, newFileName + '-' + value.name);
    await Deno.writeFile(filePath, new Uint8Array(await value.arrayBuffer()));
    rspBody.files++;
  } else {
    rspBody.fields++;
  }
}

context.response.body = rspBody;

} else {
context.response.status = 400;
context.response.body = { error: "No file uploaded" };
}
});

app.use(router.routes());
app.use(router.allowedMethods());

console.log("Server is running on port 8000");
await app.listen({ port: 8000 });`

But I am getting the error i the line 15, it says in the .request.body( ->
This expression is not callable.
Type 'Body' has no call signatures.deno-ts(2349)
(property) Request.body: Body
An interface to access the body of the request. This provides an API that aligned to the Fetch Request API, but in a dedicated API.

No quick fixes available

Screenshot attached

[marvinhagemeister]

According to the oak documentation the context.request property is not a function, but an instance of the Request class. That's why you're getting the error. For Oak specific questions and how to use it, it's best to reach out to the oak project. They have a dedicated GitHub repository where you'll get answers from the folks who wrote oak directly: https://github.com/oakserver/oak/issues?q=sort%3Aupdated-desc+is%3Aissue+is%3Aopen

[willantunes]

But does Deno has something to do that in a better way? In a more native way I mean. This was also my question :)
Thanks so far btw

[marvinhagemeister]

Oak is pretty close to the native APIs in Deno. Deno itself doesn't come with a router, so going with oak is a solid choice!