Package Exports

mjml-validator

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Readme

mjml-validator

MJML provides a validation layer that helps you building your email. It can detect if you misplaced or mispelled a MJML component, or if you used any unauthorised attribute on a specific component. It supports 3 levels of validation:

skip: your document is rendered without going through validation
soft (default): your document is going through validation and is rendered, even if it has errors
strict: your document is going through validation and is not rendered if it has any error

In CLI

When using the mjml command line, you can add the option -l or --level with the validation level you want. Ex: mjml -l strict -r my_template.mjml

In Javascript

In Javascript, you can provide the level through the options parameters on MJMLRenderer. Ex: new MJMLRenderer(inputMJML, { level: strict })

strict will raise a MJMLValidationError exception. This object has 2 methods:

getErrors returns an array of objects with line, message, tagName as well as a formattedMessage which contains the line, message and tagName concatenated in a sentence.
getMessages returns an array of formattedMessage.

When using soft, no exception will be raised. You can get the errors using the object returned by the render method errors. It is the same object returned by getErrors on strict mode.