As title stated, how to use Migration API with multiple locales? As far as I know, it's only possible to POST with one locale, and PUT method is ignoring lang property.
After watch this video, just found out that you can create (POST) a document and then take its id to alternate_language_id to link it.
const createInDefaultLang = await create({
uid,
lang: "vi",
type,
data: item.vi,
title: item.vi.name,
});
if (createInDefaultLang.id) {
await create({
alternate_language_id: createInDefaultLang.id,
uid,
lang: "en",
type,
data: item.en,
title: item.en.name,
});
}