# GudHub — REST API

> The HTTP interface: authentication, applications, items, elements, files and sharing.

## REST API

- [Rest API](https://gudhub.com/docs/rest-api.md)
- [App Rest API
                #](https://gudhub.com/docs/rest-api/app.md): App requests are responsible for operations with the application. They allow you to create, update, and delete the application. There are 4 requests in total: 1
- [Auth Rest API
                #](https://gudhub.com/docs/rest-api/auth-rest-api.md): Authentication requests are responsible for a user account. It provides creating an account, changing data about it, and access it. In this article you can read
- [Clear Cache
                #](https://gudhub.com/docs/rest-api/clear-cashe.md): This is the only request that the user does not have access to. As you may have gathered, it clears the application cache. This is the only request for clearing
- [Documents
                #](https://gudhub.com/docs/rest-api/documents.md): Documents are the JSON arrays of objects and related to NoSQL databases. The document requests allow working with such data, creating a new one, and deleting it
- [Elements
                #](https://gudhub.com/docs/rest-api/elements.md): Element is a part of the user interface, more precisely, that is displayed on the screen. As usual, it contains data, that will be deleted too if someone remove
- [File
                #](https://gudhub.com/docs/rest-api/file.md): GudHub has interesting file generation. Files are saved in a file list. In turn, file ID is saved in an item. When we need to use a file in the application, we
- [Introduction Rest API
                #](https://gudhub.com/docs/rest-api/introduction-rest-api.md): GudHub s API is a comfortable tool to integrate applications. It helps you to write applications in any programming language without any problems. API works by
- [Item
                #](https://gudhub.com/docs/rest-api/items.md): These requests are aimed at working with items. Since elements are contained in items, deleting item request leads to removing elements and their data too. Ther
- [Sharing](https://gudhub.com/docs/rest-api/sharing-folder.md)
- [Group Sharing](https://gudhub.com/docs/rest-api/sharing-folder/group-sharing.md)
- [Group Sharing Overview
                #](https://gudhub.com/docs/rest-api/sharing-folder/group-sharing/group-sharing-overview.md): GudHub provides a lot of functions to make connections between application. Such networks usually have many applications with different permissions. To share on
- [Managing Apps In Groups
                #](https://gudhub.com/docs/rest-api/sharing-folder/group-sharing/managing-apps-in-groups.md): Like group users, applications have separate requests to work in groups. Each of them is described below. You can also find the rules for applications here. Eac
- [Managing Sharing Groups
                #](https://gudhub.com/docs/rest-api/sharing-folder/group-sharing/managing-sharing-groups.md): Each of group has its own name and generated ID. Maximum number of signs in the name of the group is 40 . Requests to work directly with the group: sharing grou
- [Managing Users In Groups
                #](https://gudhub.com/docs/rest-api/sharing-folder/group-sharing/managing-users-in-groups.md): This chapter describes each of the requests related to a user who belongs to a group. They all have a certain logic of operation and a few important rules. Each
- [Permission Policy
                #](https://gudhub.com/docs/rest-api/sharing-folder/permission-policy.md): GudHub has a specific access system. There are different type of permission that are used in different cases. Some of them intersect and have certain priorities
- [User Sharing
                #](https://gudhub.com/docs/rest-api/sharing-folder/sharing.md): The sharing requests allows not only share the application with other users. Due to them you can literally manage accesses to the application. Each user can hav
- [Web Sockets
                #](https://gudhub.com/docs/rest-api/web-sockets.md): Request of the current type are aimed to sending messages to users.They perform similar actions sending any messages, but are used in different cases. They also