Validations¶

Format Pydantic validation errors into readable text

The Validations utility provides a single helper function to format validation errors from FastEdgy APIs (Pydantic) into user-friendly error messages.

Available Function¶

• formatValidationErrors(error, defaultMessage): Format Pydantic validation errors to readable text

Key Features¶

• Pydantic Error Formatting: Convert FastEdgy/Pydantic errors to readable messages
• Multiple Error Handling: Handle arrays of validation errors
• Field Location Mapping: Show field paths (e.g., "body → email")
• Fallback Messages: Use default message when error details unavailable

Function Signature¶

formatValidationErrors(error, defaultMessage = undefined)

Parameters: - error: Error object from API request with data.detail property - defaultMessage: Optional default message (defaults to "Erreur inconnue")

Returns: - string: Formatted error message - undefined: If no error details found

Quick Example¶

import { formatValidationErrors } from 'vue-fastedgy'

// Single error
const singleError = {
  data: {
    detail: [{
      loc: ['body', 'email'],
      msg: 'field required'
    }]
  }
}
console.log(formatValidationErrors(singleError))
// Output: "body → email: field required"

// Multiple errors
const multipleErrors = {
  data: {
    detail: [
      {
        loc: ['body', 'email'],
        msg: 'field required'
      },
      {
        loc: ['body', 'password'],
        msg: 'ensure this value has at least 8 characters'
      }
    ]
  }
}
console.log(formatValidationErrors(multipleErrors))
// Output:
// "• body → email: field required
// • body → password: ensure this value has at least 8 characters"

// String error
const stringError = {
  data: {
    detail: "Invalid credentials"
  }
}
console.log(formatValidationErrors(stringError))
// Output: "Invalid credentials"

Get Started¶

Ready to use validation error formatting? Check out the practical guide:

User Guide