74f76c75d5
This refactors a bit of the http handler code. Moves error handling for handler functions to a generic handler. This also has a side-effect of being able to propagate errors from the provider to send the correct status code, provided the error type matches a pre-defined interface.
85 lines
2.3 KiB
Go
85 lines
2.3 KiB
Go
package strongerrors
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// ErrNotFound signals that the requested object doesn't exist
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type ErrNotFound interface {
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NotFound()
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}
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// ErrInvalidArgument signals that the user input is invalid
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type ErrInvalidArgument interface {
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InvalidArgument()
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}
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// ErrConflict signals that some internal state conflicts with the requested action and can't be performed.
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// A change in state should be able to clear this error.
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type ErrConflict interface {
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Conflict()
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}
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// ErrUnauthorized is used to signify that the user is not authorized to perform a specific action
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type ErrUnauthorized interface {
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Unauthorized()
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}
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// ErrUnauthenticated is used to indicate that the caller cannot be identified.
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type ErrUnauthenticated interface {
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Unauthenticated()
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}
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// ErrUnavailable signals that the requested action/subsystem is not available.
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type ErrUnavailable interface {
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Unavailable()
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}
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// ErrForbidden signals that the requested action cannot be performed under any circumstances.
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// When a ErrForbidden is returned, the caller should never retry the action.
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type ErrForbidden interface {
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Forbidden()
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}
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// ErrSystem signals that some internal error occurred.
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// An example of this would be a failed mount request.
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type ErrSystem interface {
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System()
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}
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// ErrNotModified signals that an action can't be performed because it's already in the desired state
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type ErrNotModified interface {
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NotModified()
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}
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// ErrAlreadyExists is a special case of ErrNotModified which signals that the desired object already exists
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type ErrAlreadyExists interface {
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AlreadyExists()
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}
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// ErrNotImplemented signals that the requested action/feature is not implemented on the system as configured.
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type ErrNotImplemented interface {
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NotImplemented()
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}
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// ErrUnknown signals that the kind of error that occurred is not known.
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type ErrUnknown interface {
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Unknown()
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}
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// ErrCancelled signals that the action was cancelled.
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type ErrCancelled interface {
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Cancelled()
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}
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// ErrDeadline signals that the deadline was reached before the action completed.
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type ErrDeadline interface {
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DeadlineExceeded()
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}
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// ErrExhausted indicates that the action cannot be performed because some resource is exhausted.
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type ErrExhausted interface {
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Exhausted()
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}
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// ErrDataLoss indicates that data was lost or there is data corruption.
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type ErrDataLoss interface {
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DataLoss()
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}
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