gulp add pipe to convert to Vinyl objects - gulp

Question

I have upgraded to gulp 4.0.2 version I need to update one of the tasks
const debug = require('gulp-debug');
const i18nextParser = require('i18next-parser');
function myTask() {
return gulp
.src(['./js/**/*.js', './js/**/*.jsx'])
.pipe(
i18nextParser({
locales: ['en', 'de'],
functions: ['translate'],
output: '/opt/locales/'
})
)
.pipe(debug())
.pipe(gulp.dest('/opt/locales/'));
});
I want these files to be converted to Vinyl objects:
[17:04:32] gulp-debug: opt/locales/de/translation.json
[17:04:32] gulp-debug: opt/locales/de/translation_old.json
[17:04:32] gulp-debug: opt/locales/en/translation.json
[17:04:32] gulp-debug: opt/locales/en/translation_old.json
otherwise I have and error
Error: Received a non-Vinyl object in `dest()`
Is there a function that I can pipe to in order to make this task work properly?
i18next-parser version is 0.7.0. Upgrading to latest 3.6.0 version doesn't produce any output at all.

Answer 1

So I solved this by adding extra step using gulp-map
const map = require('gulp-map');
const Vinyl = require('vinyl');
return gulp
.src(['./js/*.js', './js/*.jsx'])
.pipe(
i18nextParser({
locales: ['en', 'de'],
functions: ['translate'],
output: JSON_DIR
})
)
.pipe(map(function(file) {
// Explicitly convert to Vinyl object otherwise `gulp.dest()` will fail
return new Vinyl(file);
}))
.pipe(gulp.dest(JSON_DIR));