amphtml-validator
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    1.0.35 • Public • Published

    amphtml-validator Node.js Package

    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/main/validator/js/nodejs.

    Command Line Tool

    The amphtml-validator command line tool is documented here: https://amp.dev/documentation/guides-and-tutorials/learn/validation-workflow/validate_amp#command-line-tool

    Node.js API

    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.

    The method validateString also takes a htmlFormat parameter which would allow applying the validator rules for AMP4ADS or AMP4EMAIL as well. `validateString(inputString, htmlFormat).

    /**
     * Validates the provided inputString; the htmlFormat can be 'AMP' or
     * 'AMP4ADS'; it defaults to 'AMP' if not specified.
     * @param {string} inputString
     * @param {string=} htmlFormat
     * @return {!ValidationResult}
     * @export
     */

    Release Notes

    1.0.35

    • Set default engine to the WebAssembly version validator, which is https://cdn.ampproject.org/v0/validator_wasm.js. ampproject/amphtml #34213

    1.0.34

    • Updated colors dependency version (ampproject/amphtml #31656).

    1.0.33

    • Update repository location.

    1.0.32

    • Removal of AMP Actions format as it is deprecated.

    1.0.31

    • Fix Node API on Node > 12

    1.0.30

    • Remove engine section from pacakge.json to allow any version of nodejs.

    1.0.29

    • Reintroduce node v8 support. Supports node v8, v10, v12 and v14.

    1.0.28

    • Reintroduce node v10 support and introduce node v14 support.

    1.0.27

    • Removed references to amp.validator.categorizeError.

    1.0.26

    • Introduce node v12 support and remove node v10 support.

    1.0.25

    • Broken release, removed.

    1.0.24

    • Introduce node v10 support and remove node 8 support.

    1.0.23

    • The amphtml-validator binary now requires the Node.js binary to be called node. On systems where the Node.js binary is called nodejs, consider installing the nodejs-legacy Debian package or better yet, NVM.

    1.0.22

    • --html_format=AMP4EMAIL added.

    1.0.21

    • --html_format=AMP4ADS is no longer experimental.

    1.0.20

    • Better npm post-install for virtual machines, running debian over windows with SMB shared folder.

    1.0.19

    • Set correct process exit status for old versions of Node.js (v0.10.25).

    1.0.18

    • Small tweaks to this file and package.json.

    1.0.17

    • If the amphtml-validator command is already patched up for Windows, leave it alone instead of failing. Relevant if the package has been installed globally and now we're performing a local install on top of it.

    1.0.16

    • npm install amphtml-validator (local install) should now work on Windows, for require('amphtml-validator').

    1.0.15

    • Added support for installing on Windows. npm install -g amphtml-validator should now just work.

    1.0.13

    • Added newInstance method, a simple API that's not async.

    1.0.12

    • Added support for --user-agent option.

    1.0.11

    • Added support for AMP4ADS (via --html_format command line flag) and argument for validateString function in the API.

    1.0.10

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      Install

      npm i amphtml-validator

      DownloadsWeekly Downloads

      61,327

      Version

      1.0.35

      License

      Apache-2.0

      Unpacked Size

      33.3 kB

      Total Files

      5

      Last publish

      Collaborators

      • amphtml-validator