gulp-json-lint

JSON linter plugin for Gulp.

First install gulp-json-lint

npm install --save-dev gulp-json-lint

Usage:

var jsonlint = require('gulp-json-lint');
 
gulp.task('jsonlint', function(){
      gulp.src('source.json')
        .pipe(jsonlint())
        .pipe(jsonlint.report('verbose'));
});

The output is added to file.jsonlint. You can output the errors by using reporters. There are two default reporters:

• 'json' prints stringified JSON to console.log.
• 'verbose' prints longer human-readable failures to console.log.

Reporters are executed only if there is an error.

You can use your own reporter by supplying a function.

/* Output is in the following form:
 * {
 *   "error": "Unknown Character 'a', expecting a string for key statement.",
 *   "line": 2,
 *   "character": 5
 * }
 */
var testReporter = function (lint, file) {
    console.log(file.path + ': ' + lint.error);
};
 
gulp.task('invalid', function(){
      gulp.src('invalid.json')
        .pipe(jsonlint())
        .pipe(jsonlint.report(testReporter));
});

gulp-json-lint only has one option, which specifies if comments are allowed. By default, they're not.

gulp.task('comments-valid', function(){
      gulp.src('comments.json')
        .pipe(jsonlint({
          comments: true
        }))
        .pipe(jsonlint.report('verbose'));
});

Development

Fork this repository, run npm install and send pull requests.