SyntaxError for UploadThing

using any UploadThing component breaks my code, because of this error
- error SyntaxError: Unexpected token < in JSON at position 0
at JSON.parse (<anonymous>)
- error SyntaxError: Unexpected token < in JSON at position 0
at JSON.parse (<anonymous>)
I dont seem to know where I'm messing up,
"use client";
// You need to import our styles for the button to look right. Best to import in the root /layout.tsx but this is fine
import "@uploadthing/react/styles.css";

import { UploadButton } from "@uploadthing/react";

import { OurFileRouter } from "@/app/api/uploadthing/core";

export default function Upload() {
return (
<div>
<UploadButton<OurFileRouter>
endpoint="imageUploader"
onClientUploadComplete={(res) => {
// Do something with the response
console.log("Files: ", res);
alert("Upload Completed");
}}
onUploadError={(error: Error) => {
// Do something with the error.
alert(`ERROR! ${error.message}`);
}}
/>

</div>
);
}
"use client";
// You need to import our styles for the button to look right. Best to import in the root /layout.tsx but this is fine
import "@uploadthing/react/styles.css";

import { UploadButton } from "@uploadthing/react";

import { OurFileRouter } from "@/app/api/uploadthing/core";

export default function Upload() {
return (
<div>
<UploadButton<OurFileRouter>
endpoint="imageUploader"
onClientUploadComplete={(res) => {
// Do something with the response
console.log("Files: ", res);
alert("Upload Completed");
}}
onUploadError={(error: Error) => {
// Do something with the error.
alert(`ERROR! ${error.message}`);
}}
/>

</div>
);
}
14 Replies
ablc
ablc2y ago
Currently trying the app router examples here to no avail too: https://github.com/pingdotgg/uploadthing/tree/main/examples/appdir
GitHub
uploadthing/examples/appdir at main · pingdotgg/uploadthing
File uploads for modern web devs. Contribute to pingdotgg/uploadthing development by creating an account on GitHub.
markr
markr2y ago
Do you have a public repo I can take a look at? What package manager are you using?
ablc
ablc2y ago
GitHub
GitHub - louisuy/Next-13-Social-Media-App at uploadthing
Contribute to louisuy/Next-13-Social-Media-App development by creating an account on GitHub.
ablc
ablc2y ago
And I use npm.
markr
markr2y ago
We have noticed some oddities with npm recently, though ideally you should be able to use any package manager. I will check out your repo shortly!
ablc
ablc2y ago
Yeah it surely is odd, cause the moment <UploadButton ... /> or <UploadDropzone ... /> is uncommented/pasted in, the page breaks. And all I get in the logs are:
- error SyntaxError: Unexpected token < in JSON at position 0
at JSON.parse (<anonymous>)
- error SyntaxError: Unexpected token < in JSON at position 0
at JSON.parse (<anonymous>)
Where everything else seems to be fine, and atleast 1:1 with the docs.
markr
markr2y ago
IT looks like you don't have the API route or file router definition in this repo That error actually makes sense if you are missing the API route, because it will try to hit that endpoint, and get back an HTML response (instead of JSON)
ablc
ablc2y ago
Those are the files in the docs, which are these right?
markr
markr2y ago
Yep those are the ones
ablc
ablc2y ago
Yeah they exist in that branch in the repo, let me add it to the main and let me push.
ablc
ablc2y ago
Okay yeah, I've brought it back to the master branch, and still I've replicated
- error SyntaxError: Unexpected token < in JSON at position 0
at JSON.parse (<anonymous>)
- error SyntaxError: Unexpected token < in JSON at position 0
at JSON.parse (<anonymous>)
ablc
ablc2y ago
Hey @markr, I've fixed it, It had to do with:
.onUploadComplete(async ({ metadata, file }) => {})
.onUploadComplete(async ({ metadata, file }) => {})
This metadata which remained unused. Removing it fixed it.
markr
markr2y ago
Ah, interesting. Will definitely have to look into that. Cc @theo
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