Unsupported fetch action type createMany

When I tried to use the import function, I am seeing:

Unsupported fetch action type createMany

could you please provide an example of how to implement createMany

[benwinding]

Version 1.0.31 should fix the issue here. The new version should automatically handle those additional error cases.

But if you’re still getting an error from createMany try disabling it by using disableCreateMany in the options.

Let me know if there’s any issues

[a3626a]

Implementing CreateMany is always better than relying on the fallback. However, in some cases CreateMany is not supported at api(server) level. In those cases, implementing CreateMany is just repeating this code : https://github.com/benwinding/react-admin-import-csv/blob/9b7b840f76270fe7c444710881ed781a8d83c830/src/uploader.ts#L106-L123

Therefore, I think relying on the fallback is better if the api server does not support CreateMany. Fallback condition depends on the error raised, Unknown dataProvider : https://github.com/benwinding/react-admin-import-csv/blob/9b7b840f76270fe7c444710881ed781a8d83c830/src/uploader.ts#L147

Error message for missing data provider function varies depending on data provider implementations. So in many cases, this fallback does not work without additional implmentations. In my case, I catch error from the data provider and throw “Unknown dataProvider”.

try {
  ...
} catch (error) {
    if (error.toString().includes("Unsupported Data Provider")) {
        throw "Unknown dataProvider"
    } else {
        throw error;
    }
}

---

Making fallback work for various data provider implementions looks like difficult. Because there are no protocol to signal missing data provider functions in react admin. I think providing a tutorial for this would be the best.