Unexpected token => eslint

Question

Prior to the post, I would like to make it clear that I am very very new to all this (node, eslint, firebase).

So right now I'm writing a proof of concept for a Roblox game/group I'm developing. This however has nothing to do with my issue, my issue comes when I try to compile an asynchronous function. I get the error

Parsing error: Unexpected token =>

A friend of mine took the same snippet of code and apparently it works fine for them. I'm genuinely at a loss, everything looks like it should work.

Node version is 14.17.3

Here's my code

const functions = require("firebase-functions");
const express = require("express");
const cors = require("cors");
const app = express();
const fs = require("fs");
const Webhook = require("discord-webhook-node").Webhook;
const URL = "EXPUNGED";
const hook = new Webhook(URL);
const tmp = require("tmp");
const noblox = require("noblox.js");
const cookie = "EXPUNGED";

app.use(cors({origin: true}));

app.post("/api/rank", async (req, res) => {
  const currentUser = await noblox.setCookie(cookie);
  functions.logger.log(`Logged in as ${currentUser.UserName} [${currentUser.UserID}]`);
  const groupInfo = await noblox.getGroup(000000);
  functions.logger.log(groupInfo);
  res.end("Received POST request!");
}
);
exports.widgets = functions.https.onRequest(app);

The reason there are more variables at the top than I use in the block is that it's for other parts of the script. They don't affect the code block in any way.

If you need further information that I failed to provide let me know.

Update your ESLint config: https://stackoverflow.com/a/68587724/13130697 — Dharmaraj, Aug 03 '21 at 05:02

Josh Wulf · Accepted Answer · 2021-08-03T04:55:55.120

0

You don't compile JavaScript. If eslint is causing this issue, then your eslint settings may need to specify something later than ES5.

Otherwise, you can rewrite it as ES5, without the arrow function:

app.post("/api/rank", async function (req, res) {

If the async keyword causes an issue, see the eslint config in this answer.

edited Aug 03 '21 at 04:55

answered Aug 03 '21 at 02:53

Josh Wulf

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Using async function just errors unexpected token function. eslintrc.js specifies es6. My bad about the compile terminology – jrdonat Aug 03 '21 at 03:39
What's the command you use to run it, that gives you this error? – Josh Wulf Aug 03 '21 at 03:48
I get the error when trying to deploy the firebase function, when running --fix and it auto pops up from the eslint plugin on VSCode – jrdonat Aug 03 '21 at 04:23
Not sure if this is relevant but in the package json under devdependancies my eslint says ^7.32.0 – jrdonat Aug 03 '21 at 04:26
Check the link that I added to my answer. – Josh Wulf Aug 03 '21 at 04:56
Sweet. Worked great. Thanks – jrdonat Aug 03 '21 at 23:49

Unexpected token => eslint

1 Answers1