> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fastgen.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Logging

**Access logs of all API requests & workflow executions.**

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## Overview

Logging provides you with valuable insights into your API and workflow activity to better understand performance and optimize them.

#### Log Details

Details provide you with granular information like request and response headers, request bodies, action data and timestamps.

#### Sorting & Filtering

Sort by route, HTTP status or date to quickly identify patterns or issues.

#### Request & Response Data

Analyze response headers and bodies.

### Global Error Handling

Global Error Handling allows you to monitor errors automatically. To enable this feature, go to the project settings and activate the global error handling options.

**Unexpected Error**

An `error.unexpected_error` event is automatically triggered when unexpected errors occur in your APIs, Workflows or Functions.

**Error Action Error**

An `error.action_triggered` event can be manually initiated through error response actions within your API.

**Error Information as Parameters**

Each error event carries detailed parameters to aid in troubleshooting and resolution. Below is an example of an error information structure for an unexpected error in an API:

```json theme={null}
{
    "endpointId": 4,
    "error": "Message: rpc error: code = InvalidArgument desc = update_by key is required",
    "errorSourceAction": {
      "Config": {
        "Data": {
          "ApiEndpointId": "user/update",
          "BodyFields": {
            "update_by": {}
          },
          "PathFields": {},
          "QueryFields": {}
        }
      },
      "IsValid": true,
      "Kind": "actions.user",
      "Name": "User Action",
      "Uuid": "84d579e5-d4c3-442a-a041-b1707ef8630e"
    },
    "executedAt": "2024-07-01T10:21:23Z",
    "isDeployed": false,
    "method": "GET",
    "path": "/hello"
  }
```

## Lessons

Learn more about Logging, among other things, in the following Fastgen University lessons:

* [API](/university/step-by-step/api)

* [Webhook-SQL](/university/step-by-step/webhook-sql)