In another article, we reviewed how to register app users with the API. By default, a Backendless backend declares a user entity with three properties: email, password, and name. The “email” property is configured as identity by default, meaning its value should be passed into the login API request.

Previously, we wrote about how to store and retrieve objects to and from server-side in-memory cache. Quite often when working with your cache, it is necessary to check if an object already exists in cache. Backendless provides an API for that function. The code below checks if an object exists in cache, and if not,…

We’ve written about how to upload files to the Backendless Hosting system. Once a file is uploaded, it gets a public URL which can either be obtained using Backendless Console or calculated using a template.

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.

Connecting users with their related data is a key function of user management. When you register (or update) a user object, you may need to create a relation between the user and some other entity/object stored in your Backendless Database. Since a user object is structurally a collection of properties, it is very easy to…

In other articles, we have covered: how to declare a geo-to-data relationship in a data table schema and 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. In this post, we are going to show how to retrieve…

In another article discussing user management, we covered how to use the user registration API to register users for your app. When registering a user, your app sends a collection of user registration properties to the server. Values for these properties typically come from a registration form in your app. Some form fields may be…

In another post, we introduced you to the publish/subscribe messaging API. The API can be used to broadcast messages that can be received by multiple client apps. Be sure to check out our guide to building a Flutter chat app to see pub/sub messaging in action. Note: It is important to distinguish between pub/sub messages…

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.