amphtml-validator
Advanced tools
Readme
This package is published and available at https://www.npmjs.com/package/amphtml-validator.
The source code is available at https://github.com/ampproject/amphtml/tree/master/validator/nodejs.
The amphtml-validator command line tool is documented here:
https://amp.dev/documentation/guides-and-tutorials/learn/validation-workflow/validate_amp#command-line-tool
This API is new - feedback is especially welcome.
To install, use npm install amphtml-validator in your project directory,
or add amphtml-validator as a dependency to your package.json.
You may save the following example into a file, e.g., demo.js.
'use strict';
var amphtmlValidator = require('amphtml-validator');
amphtmlValidator.getInstance().then(function(validator) {
var result = validator.validateString('<html>Hello, world.</html>');
(result.status === 'PASS' ? console.log : console.error)(result.status);
for (var ii = 0; ii < result.errors.length; ii++) {
var error = result.errors[ii];
var msg =
'line ' + error.line + ', col ' + error.col + ': ' + error.message;
if (error.specUrl !== null) {
msg += ' (see ' + error.specUrl + ')';
}
(error.severity === 'ERROR' ? console.error : console.warn)(msg);
}
});
Now try running it:
$ node demo.js
FAIL
line 1, col 0: The mandatory attribute '⚡' is missing in tag 'html ⚡ for top-level html'. (see https://amp.dev/documentation/guides-and-tutorials/learn/spec/amphtml#required-markup)
line 1, col 0: The parent tag of tag 'html ⚡ for top-level html' is '$root', but it can only be '!doctype'. (see https://amp.dev/documentation/guides-and-tutorials/learn/spec/amphtml.html#required-markup)
...
As expected, this emits errors because the provided string in the example, <html>Hello, world.</html> is not a valid AMP HTML document.
npm install amphtml-validator (local install) should now work on Windows,
for require('amphtml-validator').npm install -g amphtml-validator should now just work.FAQs
Official validator for AMP HTML (www.ampproject.org)
We found that amphtml-validator demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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