10 replies

Matching Common Errors Wrapped in a Fail Cause

Basic questions about working with

Cause

Cause

. There's

Cause.isNoSuchEelementException

Cause.isNoSuchEelementException

but the if a NoSuchElementException happens in an effect and I

tapErrorCause

tapErrorCause

that function will return false because the

NoSuchElementException

NoSuchElementException

is wrapped in a fail Cause like

{"_id":"Cause","_tag":"Fail","failure":{"_tag":"NoSuchElementException"}}

{"_id":"Cause","_tag":"Fail","failure":{"_tag":"NoSuchElementException"}}

. What's the preferred pattern for matching common errors like NoSuchElementException when they get wrapped in a fail Cause?

The basic pattern I'm trying to achieve, don't log certain errors

Effect.tapErrorCause(c =>
            pipe(
                Effect.logError(`Error fetching persisted request ${JSON.stringify(request)}`, c),
                //don't log NoSuchElementException since its the valid case where there are no persisted results
                Effect.unless(() => Cause.isNoSuchElementException(c)),
            ),
        ),

Effect.tapErrorCause(c =>
            pipe(
                Effect.logError(`Error fetching persisted request ${JSON.stringify(request)}`, c),
                //don't log NoSuchElementException since its the valid case where there are no persisted results
                Effect.unless(() => Cause.isNoSuchElementException(c)),
            ),
        ),

Matching Common Errors Wrapped in a Fail Cause

Basic questions about working with

Cause

Cause

. There's

Cause.isNoSuchEelementException

Cause.isNoSuchEelementException

but the if a NoSuchElementException happens in an effect and I

tapErrorCause

tapErrorCause

that function will return false because the

NoSuchElementException

NoSuchElementException

is wrapped in a fail Cause like

{"_id":"Cause","_tag":"Fail","failure":{"_tag":"NoSuchElementException"}}

{"_id":"Cause","_tag":"Fail","failure":{"_tag":"NoSuchElementException"}}

. What's the preferred pattern for matching common errors like NoSuchElementException when they get wrapped in a fail Cause?

The basic pattern I'm trying to achieve, don't log certain errors

Effect.tapErrorCause(c =>
            pipe(
                Effect.logError(`Error fetching persisted request ${JSON.stringify(request)}`, c),
                //don't log NoSuchElementException since its the valid case where there are no persisted results
                Effect.unless(() => Cause.isNoSuchElementException(c)),
            ),
        ),

Effect.tapErrorCause(c =>
            pipe(
                Effect.logError(`Error fetching persisted request ${JSON.stringify(request)}`, c),
                //don't log NoSuchElementException since its the valid case where there are no persisted results
                Effect.unless(() => Cause.isNoSuchElementException(c)),
            ),
        ),

Matching Common Errors Wrapped in a Fail Cause

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Matching Common Errors Wrapped in a Fail Cause

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