# Request Inspector

## Overview

The request inspector allows you to debug incoming requests, view headers and other information that can facilitate application development work. It is available for the `tuna http`, `tuna postgres`, `tuna redis` commands and is controlled by the `--inspect` flag or the `TUNA_INSPECT` environment variable.

## Management

The request inspector is enabled by default and is available at `http://127.0.0.1:4040`. If port `4040` is busy, the next available port will be selected. You can disable the inspector with the `--inspect=false` flag or the `TUNA_INSPECT=false` variable. The address or port can be overridden using the `TUNA_INSPECT_ADDR` environment variable or the `inspectAddr` parameter in the [configuration file](https://tuna.am/en/docs/guides/config-file.md).

* `TUNA_INSPECT_ADDR=0.0.0.0` - listen on all interfaces
* `TUNA_INSPECT_ADDR=0.0.0.0:8080` - listen on all interfaces on port `8080`, if the port is busy, the next available port will be selected
* `TUNA_INSPECT_ADDR=8080` - listen on address `127.0.0.1` on port `8080`, if the port is busy, the next available port will be selected

RAM consumption

The inspector stores requests in RAM. Disable the inspector (`--inspect=false`) in production and on embedded devices (IP-KVM, Raspberry Pi, etc.) to prevent memory leaks.

The final address will be printed in the console at startup:

![inspector-link](/docs/img/examples/inspect1.png)

## Interface

By following the link, you will see a minimalist WEB interface with a list of executed requests. You can click on any request to view more detailed information about headers and other details.

### Request list

![list](/docs/img/inspect/list.png)

You can also repeat requests, including with modifications:

![repeat](/docs/img/inspect/repeat.png)

### Settings

This displays general information and the current configuration of [traffic policies](https://tuna.am/en/docs/traffic-policy.md).

![settings](/docs/img/inspect/settings.png)

### Tools

For greater convenience, we have built developer tools right into the inspector.

![tools](/docs/img/inspect/tools.png)

On a separate tab you can find:

* CSV to JSON
* Base64 Encode/Decode
* JSON Formatter
* YAML to JSON
* URL Encode/Decode
* Timestamp to Date
* Query Parameters to JSON
* JSON to CSV
* JSON to YAML
* Number System Converter
* Regex Tester
* JWT Parser
* Hash Generator
* UUID Generator
* Lorem Ipsum Generator

*If you didn't find the tool you need, [contact us](mailto:info@tuna.am) and we will consider the request.*

### QR code

The QR code contains a link to the tunnel, which is convenient for mobile devices.

![qr](/docs/img/inspect/qr.png)