SimpleSchema cheat sheet

SimpleSchema-example.js

var schemaName = new SimpleSchema({
  "first_field": {
    type: String|Number|Boolean|[Object],
    label: "First field",
    optional: true,
    custom: function () {
      if (Meteor.isClient && this.isSet) {
        Meteor.call("accountsIsUsernameAvailable", this.value, function (error, result) {
          if (!result) {
            Meteor.users.simpleSchema().namedContext("createUserForm").addInvalidKeys([{name: "username", type: "notUnique"}]);
          }
        });
      }
    }
  },
  
});

MyCollection = new Meteor.Collection("my-collection");
MyCollection.attachSchema(schemaName);