`Atom Authorization` is data-based authorization. This chapter describes the basic concepts and usage of `Atom Authorization`. For more details, see: [Cabloy:Atom Authorization](https://cabloy.com/articles/atom-authorization.html) ## **Authorization Record** Authorization of `atom action` for `atomClass`, such as the following authorization record: | **Role** | **AtomClass** | **Atom Action** | |:---|:---|:---| | system | party | create | ## **Data Scope of Authorization** When authorizing, you can specify the data scope of the permission, such as the following authorization record: | **Role** | **AtomClass** | **Atom Action** | **Data Scope** | |:---|:---|:---|:---| | system | party | read | finance department | > The role `system` can only read `party` data of `finance department` ## **Authorization Ways** There are three ways of atom authorizations. Here, appropriate initial privileges are assigned to the relevant roles through the `initial authorization` approach ### 1\. **Authorization Records** | **Role** | **AtomClass** | **Atom Action** | **Data Scope** | |:---|:---|:---|:---| | system | party | create | | | system | party | read | authenticated | | system | party | write | self | | system | party | delete | self | | system | party | clone | self | | system | party | deleteBulk | | | system | party | exportBulk | | ### 2\. Authorization Logics `src/suite-vendor/test-party/modules/test-party/backend/src/bean/version.manager.js` ``` javascript async init(options) { // init if (options.version === 1) { // add role rights const roleRights = [ { roleName: 'system', action: 'create' }, { roleName: 'system', action: 'read', scopeNames: 'authenticated' }, { roleName: 'system', action: 'write', scopeNames: 0 }, { roleName: 'system', action: 'delete', scopeNames: 0 }, { roleName: 'system', action: 'clone', scopeNames: 0 }, { roleName: 'system', action: 'deleteBulk' }, { roleName: 'system', action: 'exportBulk' }, ]; await this.ctx.bean.role.addRoleRightBatch({ atomClassName: 'party', roleRights }); } } ``` ## **Authorization Checking** Authorization can be checked by `middleware` or `API`. Here we only demonstrate the checking method of `middleware`: `src/suite-vendor/test-party/modules/test-party/backend/src/routes.js` ``` javascript // test/atom/right(checked by middleware) { method: 'post', path: 'test/atom/checkRightCreate', controller: 'testAtomRight', middlewares: 'test', meta: { right: { type: 'atom', action: 'create' } }, }, { method: 'post', path: 'test/atom/checkRightRead', controller: 'testAtomRight', middlewares: 'test', meta: { right: { type: 'atom', action: 'read' } }, }, { method: 'post', path: 'test/atom/checkRightWrite', controller: 'testAtomRight', middlewares: 'test', meta: { right: { type: 'atom', action: 'write' } }, }, { method: 'post', path: 'test/atom/checkRightAction', controller: 'testAtomRight', middlewares: 'test', meta: { right: { type: 'atom', action: 'partyOver' } }, }, ``` | Name | Description | |----|----| | meta | the metadata of api route, which can specify parameters related to middlewares | | right | parameters of middleware `right` | | type | authorization type, here is `atom` | | action | `Atom Action` for authorization checking |