Asset manager upload sending empty object to backend endpoint
Sorry but by simply trying to submit an asset the payload I see is correct, so without a reproducible demo, it looks to be an issue on your backend side (ensure to have the proper body-parser).
Read full answer below βQuestion
GrapesJS version
- I confirm to use the latest version of GrapesJS
What browser are you using?
Firefox
Reproducible demo link
NA
Describe the bug
What is the current behavior?
I have created a custom backend endpoint for storing my assets, when I used the upload method of asset manager it is not sending any data to my backend it sends an empty object, I am getting the asset data at client side inspector also facing the same issue while sending using Axios inside the asset manager
assetManager: {
upload: "http://localhost:5002/api/grapesjs/assets"',
},
getting an empty object at backend
Also tried
assetManager: {
uploadFile: async (e) => {
var files = e.dataTransfer ? e.dataTransfer.files : e.target.files;
console.log(files[0]);
let formData = new FormData();
formData.append("file", files[0]);
formData.append('test',"testing...");
console.log(formData);
await Axios.post("http://localhost:5002/api/grapesjs/assets", {
headers: {
"Content-Type": "multipart/form-data",
"Access-Control-Allow-Original":"*"
},
formData
})
.then(function () {
console.log("Success");
})
.catch(function (error) {
console.log(error);
});
},
},
Same error
BACKEND CODE
private storeassets = async (
req: Request,
res: Response,
next: NextFunction
): Promise<void> => {
try {
console.log("REQ TO S3")
console.log(req.body);
const assetData = req.body;
console.log("STORING TO S3")
console.log(assetData)
Backend console data getting empty object in formData: {}
REQ TO S3
{
headers: {
'Content-Type': 'multipart/form-data',
'Access-Control-Allow-Original': '*'
},
formData: {}
}
### Code of Conduct
- [X] I agree to follow this project's Code of ConductAnswers (3)
Sorry but by simply trying to submit an asset the payload I see is correct, so without a reproducible demo, it looks to be an issue on your backend side (ensure to have the proper body-parser).
Thanks, worked using Multer, the issue was with the body parser.
Thanks for reporting this, @Aar-if.
The issue with Asset manager upload sending empty object to backend endpoint appears to be a race condition or state management timing problem. This typically happens when component lifecycle events and DOM modifications overlap, creating an inconsistent state.
What to try:
- Add a setTimeout wrapper to ensure the DOM has settled:
setTimeout(() => {
// your operation here
}, 0);
-
Check initialization order β make sure components are fully loaded before you interact with them
-
Use the editor's event system β listen to completion events:
editor.on('component:mount', (component) => {
// safe to interact with component here
});
Recommended next steps:
- Test with the latest GrapesJS version if you haven't
- Provide a minimal reproducible example (CodeSandbox) β this helps the team identify the root cause faster
- Include GrapesJS version, browser, and console errors in your report
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