error-handling Scenario 4 — Try-Catch with Screenshot on Failure

Written by RTILA X Engineering Team

Intermediate ~6 min

Prerequisites: error-handling/1 error-handling/2

What You'll Learn

Use try_catch to capture screenshots on failure

Real-World Use Case

Debugging automation runs without manual intervention

LIVE DEMO

Fallback: Used backup selector to extract data

Field	Value
Backup ID	BKP-1001
Mode	Fallback
Status	Recovered

EXPECTED OUTPUT

RTILA X PROJECT JSON

    {
  "name": "Try_Catch_With_Screenshot",
  "settings": {
    "urls": [
      "https://learn.rtila.com/scenarios/error-handling/4"
    ],
    "headless": false,
    "navigation_timeout": 30000,
    "max_concurrent_workers": 1,
    "humanoidEnabled": true,
    "humanoidSensitivity": "medium"
  },
  "datasets": {
    "fallback_data": {
      "item_selector": "css=table.fallback-data tbody tr",
      "properties": [
        {
          "name": "field",
          "type": "text",
          "selector": "css=td:nth-child(1)"
        },
        {
          "name": "value",
          "type": "text",
          "selector": "css=td:nth-child(2)"
        }
      ]
    }
  },
  "commands": [
    {
      "command": "goto",
      "params": {
        "url": "https://learn.rtila.com/scenarios/error-handling/4"
      }
    },
    {
      "command": "try_catch",
      "params": {
        "try": [
          {
            "command": "click",
            "params": {
              "selector": "css=#risky-action"
            }
          },
          {
            "command": "wait_for_selector",
            "params": {
              "selector": "css=.action-success",
              "timeout": 5000
            }
          },
          {
            "command": "extract_data",
            "params": {
              "dataset": "fallback_data"
            }
          }
        ],
        "catch": [
          {
            "command": "screenshot",
            "params": {
              "path": "error-screenshot.png"
            }
          },
          {
            "command": "extract_data",
            "params": {
              "dataset": "fallback_data"
            }
          }
        ]
      }
    }
  ]
}

RTILA X Concepts

When an action fails, the catch block can save a screenshot for debugging and then continue with a fallback extraction. This preserves context while keeping the automation resilient.

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This scenario covers 2 RTILA X commands and is referenced in 2 learning articles.

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