Error handling in flows

There are four ways to handle errors in Windmill flows: retries, error handlers, and early stop/break.

Error handler

The Error handler is a special flow step that is executed when an error occurs within a flow.

If defined, the error handler will take as input the result of the step that errored (which has its error in the 'error field').

Error handler

Configure a script to handle errors.

Retries

Steps within a flow can be retried a specified number of times and at a defined frequency in case of an error.

Example of a flow step giving error if random number = 0 and re-trying 5 times

Retries

Re-try a step in case of error.

Early stop / Break

The Early stop/Break feature allows you to define a predicate expression that determines whether the flow should stop early at the end or before a step.

Early stop / Break

Stop early a flow based on a step's result.

Custom timeout for step

For each step can be defined a timeout. If the execution takes longer than the time limit, the execution of the step will be interrupted.

Custom timeout for step

For each step can be defined a timeout. If the execution takes longer than the time limit, the execution of the step will be interrupted.

Error handling

For more details on Error handling, see:

Error handling

There are 5 ways to do error handling in Windmill.