# flytekit.exceptions.eager

## Directory

### Errors

| Exception | Description |
|-|-|
| [`EagerException`](https://www.union.ai/docs/v1/union/api-reference/flytekit-sdk/packages/flytekit.exceptions.eager/page.md#flytekitexceptionseagereagerexception) | Raised when a node in an eager workflow encounters an error. |

## flytekit.exceptions.eager.EagerException

Raised when a node in an eager workflow encounters an error.

This exception should be used in an {{< py_func_ref `@eager <flytekit.core.task.eager>` >}} workflow function to
catch exceptions that are raised by tasks or subworkflows.

```python
from flytekit import task
from flytekit.exceptions.eager import EagerException

@task
def add_one(x: int) -> int:
    if x < 0:
        raise ValueError("x must be positive")
    return x + 1

@task
def double(x: int) -> int:
    return x * 2

@eager
async def eager_workflow(x: int) -> int:
    try:
        out = await add_one(x=x)
    except EagerException:
        # The ValueError error is caught
        # and raised as an EagerException
        raise
    return await double(x=out)
```

---
**Source**: https://github.com/unionai/unionai-docs/blob/main/content/api-reference/flytekit-sdk/packages/flytekit.exceptions.eager.md
**HTML**: https://www.union.ai/docs/v1/union/api-reference/flytekit-sdk/packages/flytekit.exceptions.eager/