---
url: /logly.zig/examples/telemetry-mini.md
description: Minimal Logly.zig telemetry setup writing spans to a file.
---

# Minimal Telemetry

File-based telemetry with a service name.

```zig
var config = logly.TelemetryConfig.file("telemetry_test.jsonl");
config.serviceName = "test-app";
config.enabled = true;
var telemetry = try logly.Telemetry.init(allocator, config);
defer telemetry.deinit();
```

Output:

```text
Telemetry exported to telemetry_test.jsonl
```