How to use API to import OPML?

[Jorenar]

I'm creating an UserScript which will sort the feeds alphabetically for me.
I'm trying to upload sorted OPML file with the following code:

fetch(window.location.origin + '/rest/feed/import', {
  method : "POST",
  headers: { 'Content-Type': 'multipart/form-data' },
  body: new XMLSerializer().serializeToString(opml),
}).then(res => res.text()).then(console.log);

but I'm getting {"code":400,"message":"HTTP 400 Bad Request"}.

Adding header Content-Disposition: form-data; name="file"; filename="rss.opml" doesn't change anything;
using Content-Type: text/xml results in {"code":415,"message":"HTTP 415 Unsupported Media Type"}.

[Athou]

You need to post a FormData object and set the file param to the opml content. file is the name expected by CommaFeed for the opml in the POST body.

const formData = new FormData();
formData.append("file", opmlFile);

opmlFile is usually the value from the file picker but it seems you have the opml as xml or string. I think you'd need to construct a File yourself then: https://stackoverflow.com/a/26181292

After that you can set formData as the value for body in your fetch : body: formData.

See

commafeed/commafeed-client/src/app/client.ts

Lines 63 to 72 in 3271d69

	importOpml: (req: File) => {
	const formData = new FormData()
	formData.append("file", req)
	return axiosInstance.post("feed/import", formData, {
	headers: {
	"Content-Type": "multipart/form-data",
	},
	})
	},
	},

[Jorenar]

Great! That works, thanks!