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How to Build a Game Skill for Amazon Alexa Using Codeless
In a previous article (Developing a Custom Skill for an Alexa Game), we showed you how to build a custom Alexa skill using Backendless and our Amazon Alexa Skill SDK. Now, we are going to show how to make the same game using our Codeless feature - in other words - without any coding! You…

How to create custom mapping between data tables and client classes

In another post, we described how data tables in Backendless map to the client-side classes whose instances contain persisted data objects. However, there are scenarios when the default mapping is undesirable. In that case, Backendless client libraries provide an API to override the mapping. For example, consider the following data table (Restaurant):

How to add client class to data table mapping

Data tables created in Backendless and the client-side classes you write or obtain through Backendless code generation have a direct correlation. By default, a table and the corresponding client-side class have the same name. This is true for all Backendless SDKs that support object-oriented data access. This includes Android, Java, Objective-C, Swift, JavaScript, ActionScript, and…

How to add objects with relations using REST Console

In another post, we described how to save data objects using REST Console. The same interface allows to save objects with related data – it is strictly a matter of formatting the request body. Consider the following two data table schemas: Restaurant table schema:

How to use REST Console to delete objects

Backendless REST Console is a tool capable of driving REST queries against Data Service. It is useful when you need to validate a REST command or for testing and diagnostics purposes. REST Console is available in a dedicated tab on the Data screen of Backendless Console. In another post, we wrote about how to load…

How to create/save new data objects using REST Console

The REST Console is a part of the Backendless Console. It is a versatile interface that lets you perform a complete CRUD (Create, Retrieve, Update, Delete) set of operations on your data stored in Backendless using the REST interface. Another Recipe article described how to use the REST Console to perform search queries (that’s the…

How to search data objects by distance from a location

In another article, we described how a data object may have a related geopoint (or a collection of geopoints). One of the benefits of data-to-geo relationships is search by distance. That means Backendless can search for data objects using the location of the related geopoints. Consider an example from a taxi-reservation system. There may be…

How to load data objects with related geopoints using API

In other articles, we have covered: how to declare a geo-to-data relationship in a data table schema how to create relationships between an object in that schema and geopoints Of course, both of the operations above can also be accomplished with the API. However, in this post, we are going to show how to retrieve…

How to load data objects from the server with an SQL query

In other articles, we have reviewed multiple techniques for loading data objects from persistent server-side storage. There is a list of all articles categorized by topic. In this post, we are going to review the API for loading data objects using an SQL query. We already wrote once about SQL queries in Backendless and that…

How to update an object’s related collections using API

Data objects stored in Backendless Database may have related objects through one-to-one or one-to-many collections. When objects are retrieved on the client side, these relations are materialized as collections of data in the object’s fields or properties. Consider the following data object: