What context is passed into batchFn?

[johnmaguire]

Load() may be called multiple times before batchFn is called. If Load() is called with various contexts, which one is ultimately passed to batchFn?

[johnmaguire]

It looks to me from this code here that it will be the first context object passed to Load() during a given batch window:

dataloader/dataloader.go

Lines 237 to 245 in c87fdce

	// start the batch window if it hasn't already started.
	if l.curBatcher == nil {
	l.curBatcher = l.newBatcher(l.silent, l.tracer)
	// start the current batcher batch function
	go l.curBatcher.batch(originalContext)
	// start a sleeper for the current batcher
	l.endSleeper = make(chan bool)
	go l.sleeper(l.curBatcher, l.endSleeper)
	}

This API is a little confusing - perhaps a note in the README would be helpful to clarify.

[tonyghita]

Thanks @johnmaguire, that's right. A note on the README (and perhaps a comment on the code) could make this a bit clearer.