onNoData.md

onNoData hook

onNoData(params, qs)

• params {Object} - Serialized route parameters, /route/:_id => { _id: 'str' }
• qs {Object} - Serialized query string, /route/?key=val => { key: 'val' }
• Return: {void}

.onNoData() hook is triggered instead of .action() in case when .data() hook returns "falsy" value. Run any JavaScript code inside .onNoData() hook, for example render 404 template or redirect user somewhere else.

FlowRouter.route('/post/:_id', {
  name: 'post',
  data(params) {
    return PostsCollection.findOne({_id: params._id});
  },
  onNoData(params, qs){
    this.render('_layout', '_404');
  }
});

Further reading

• .data() hook