foundation simulator delay response API

[jbolda]

Motivation

Add API to delay responses to improve "real API feel".

Approach

Add middleware which takes an input or an environment variable to configure response delays.

[frontsidejack]

Package Changes Through e4027ef

There are 1 changes which include @simulacrum/foundation-simulator with minor

Planned Package Versions

The following package releases are the planned based on the context of changes in this pull request.

package	current	next
@simulacrum/foundation-simulator	0.1.0	0.2.0

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[cowboyd]

How do you configure the delay from within a test case? Maybe with a header? Or with a specific control API?

[jbolda]

How do you configure the delay from within a test case? Maybe with a header? Or with a specific control API?

I haven't really ventured too far down controlling from tests. In part because I haven't had the need, but also I really just want my tests to run fast 🤣 .

It does feel worthwhile to support, but I am comfortable punting on it for now. I am not terribly keen on headers because then your production code paths might need to muddy themselves up with that header. Control API feels better, but I don't think we have enough in place to support that yet. What do you think?

[cowboyd]

Nice!