# Logs and Monitoring

The CLI provides two modes for viewing function logs: historical (fetch recent requests) and streaming (live tail). Both use an interactive terminal UI.

## Viewing Recent Logs


```bash
sinch functions logs [ID]
```

Fetches the 50 most recent requests and displays them in an interactive table. Navigate with arrow keys. Press Enter to expand request/response details and console output.

If you are inside the function directory (containing `sinch.json`), you can omit the ID.

## Streaming Real-Time Logs


```bash
sinch functions logs [ID] --follow
sinch functions logs stream [ID]          # equivalent
```

Opens a live streaming connection. New requests appear as they arrive. Press `Q` or `Ctrl+C` to exit.

## Log Viewer Controls

| Key | Action |
|  --- | --- |
| `Up` / `Down` | Navigate rows |
| `Enter` or click | Expand request details |
| `Esc` or `Q` | Close detail view or quit |
| `J` | Copy request as JSON to clipboard |
| `C` | Copy request as cURL command to clipboard |


## Filtering Logs


```bash
sinch functions logs ID --level error       # errors only
sinch functions logs ID --search "timeout"  # text search
sinch functions logs ID --since 1h          # last hour
sinch functions logs ID --lines 200         # more entries
sinch functions logs ID --since 30m --level error  # combine
```

`--since` accepts `s` (seconds), `m` (minutes), `h` (hours), `d` (days).

## Log Entry Details

Each expanded entry shows:

- **Request** — HTTP method, URL, headers, and body sent to your function
- **Response** — Status code, headers, and body your function returned
- **Console logs** — `console.log`/`console.error` output with timestamps


## Function Status


```bash
sinch functions status [ID]               # current status
sinch functions status [ID] --follow      # poll every 3s for changes
sinch functions list                      # all functions in project
sinch functions list -i                   # interactive: select and take action
sinch functions status ID --json          # JSON output for scripting
```