Imgix Purge Post Request fails for unknown reason - node.js

Question

I wanna purge an image from the imgix cache, they have a API for that (https://docs.imgix.com/setup/purging-images)
I use axios to make the request from my nodejs backend:
const imgixKey = functions.config().imgix.key;
const headers = {
Authorization: `Bearer ${imgixKey}`,
'Content-Type': 'application/json',
};
const data = JSON.stringify({
type: 'purges',
attributes: {
url: href,
source_id: 'SOsourceId',
},
});
try {
await axios.post('https://api.imgix.com/api/v1/purge', data, { headers });
functions.logger.log('Purged Image successfully' + href);
} catch (e) {
functions.logger.error('Error removing image from cache ' + href + ' -> ' + e);
}
Error removing image from cache {stackoverflowimgpath.png} -> Error: Request failed with status code 400
The problem is other than the status code 400 there is nothing else specified, I checked the image paths and tried different Content-Type headers like in their example but that also did not work.
Since I cannot get any more information out of the response I ask for help here since I do not know how to continue.

Answer 1

Checking imgix documentation, the body of your request should have a data property:
curl -X POST 'https://api.imgix.com/api/v1/purge' \
--header 'Authorization: Bearer <api-key>' \
--header 'Content-Type: application/vnd.api+json' \
--data-raw '{ "data": { "attributes": { "url": "<url-to-purge>" }, "type": "purges" } }'
So, just modify your message to (adding the data property to your json object):
const data = JSON.stringify({
data: {
type: 'purges',
attributes: {
url: href,
source_id: 'SOsourceId',
},
}
});