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composing dataloaders #54

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@sheepdreamofandroids

Hi,

I have a datafetcher where I use 2 dataloaders in sequence: the first to translate from 1 ID to another, the second to fetch data corresponding to the second ID.

loader1.load(id1).thenCompose(id2 -> loader2.load(id2))

This hangs because dispatchAll() is not called again after loader1 completes.
I can work around that by adding that call inside the thenCompose() lambda but then it is called for every id2 which is ugly at the very least.

Is there a better way of doing this?

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