# `ASM.Extensions.Persistence.PipelinePlug`
[🔗](https://github.com/nshkrdotcom/agent_session_manager/blob/v0.9.2/lib/asm/extensions/persistence/pipeline_plug.ex#L1)

Non-blocking pipeline plug that forwards events to an async persistence writer.

Options:
- `:writer` (required): writer pid started via `ASM.Extensions.Persistence.start_writer/1`
- `:on_failure` (optional): `:drop` (default) or `:halt`

# `on_failure`

```elixir
@type on_failure() :: :drop | :halt
```

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*Consult [api-reference.md](api-reference.md) for complete listing*