Support middleware injected by OpenTelemetry Express Instrumentation plugin #4351
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OpenTelemetry injects a proxy object into the router stack, which it uses for its tracing. This is similar to how NewRelic adds a sentinel handler to the router stack. This commit adds a similar workaround so that loopback can find the original layer. Made it more generic to just test if shimmer is used to wrap the handler
a-legrand
requested review from
clark0x,
ebarault,
fabien and
zbarbuto
as code owners
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OpenTelemetry Express Instrumentation injects a proxy object into the router stack, which it
uses for its tracing. This is similar to how NewRelic adds a sentinel handler to the router stack. This commit adds a similar workaround so that loopback can find the original layer.
I made the variable more generic to just test if shimmer is used to wrap the handler, as this library can be used by other libraries.
See also #4119
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