diff --git a/README.assets/1531039386654.png b/README.assets/1531039386654.png index fb5b8bc..fde7295 100644 Binary files a/README.assets/1531039386654.png and b/README.assets/1531039386654.png differ diff --git a/README.md b/README.md index 78335c6..92e839e 100644 --- a/README.md +++ b/README.md @@ -8,6 +8,14 @@ **Aicra** is a self-working framework coded in *Go* that allows anyone to create a fully featured REST API. It features type checking, authentication management through middlewares, file upload, rich argument parsing (*i.e. url slash-separated, urlencoded, form-data, json*), nested routes, project compiler (*i.e. aicra*), etc. +All the REST API management is done for you, you just need to implement : + +- the controllers +- the middlewares (to manage authentication, csrf, etc) +- the type checkers to check if input arguments follows some rules + +There is 2 drivers that lets you implement these features in Go or whatever language. + This framework is based over some of the following concepts. @@ -15,7 +23,7 @@ This framework is based over some of the following concepts. | concept | explanation | |---|---| | meaningful defaults | Defaults and default values work without further understanding | -| config driven | Avoid information duplication. Automate anything that can be without losing control. Have *one* configuration that summarizes the whole project, its behavior and its automation flow. | +| configuration driven | Avoid information duplication. Automate anything that can be automated without losing control. Have *one* configuration that summarizes the whole project, its behavior and its automation flow. | > A working example is available [here](https://git.xdrm.io/example/aicra) @@ -56,9 +64,9 @@ It should now be available locally and available for your imports. -##### 2. Compile the command-line builder +##### 2. Compile the command-line compiler -You should then compile the project builder to help you manage your projects. +You should then compile the project compiler to help you manage your projects. ```bash go install git.xdrm.io/go/aicra/cmd/aicra @@ -74,84 +82,164 @@ go install git.xdrm.io/go/aicra/cmd/aicra The default project structure for **aicra** is as follows : - - - - ``` -├── main.go - the entry point -├── manifest.json - the configuration file +├── main.go - entry point +| +├── aicra.json - server configuration file +├── api.json - API configuration file +| ├── middleware - middleware implementations ├── controller - controller implementations -└── types - custom type for the type checker - +└── type - custom type checkers ``` -In order for your project to be run, each controller, middleware and type checker has to be compiled as a *plugin* (*i.e. shared objects*). They can then be loaded by the server. + + +##### 1. Compilation configuration + +The `aicra.json` configuration file defines where are located your controllers, type checkers, and middlewares ; also it contains what driver you want to use, you have 2 choices : + +1. **plugin** - for Go implementations +2. **generic** - for any language implementation (uses standard input and output) + +| field | description | example value | +| ------------------ | ------------------------------------------------------------ | -------------------- | +| root | The project folder path | `./some-path` | +| driver | The driver to use for loading controllers, middlewares and type checkers | `plugin` or`generic` | +| types.default | Whether to load default types into the project | `true`, `false` | +| types.folder | The folder (relative to the project root) where type checkers' implementations are located | `./type` | +| controllers.folder | The folder (relative to the project root) where controllers' implementations are located | `./controller` | +| middlewares.folder | The folder (relative to the project root) where middlewares' implementations are located | `./middleware` | + +A sample file can be found [here](https://git.xdrm.io/example/aicra/src/master/aicra.json). -##### 1. Configuration +##### 2. API Configuration -The whole project behavior is described inside the `manifest.json` file. For a better understanding of the format, take a look at this working [template](https://git.xdrm.io/example/aicra/src/master/manifest.json). This file contains information about : +The whole project behavior is described inside the `api.json` file. For a better understanding of the format, take a look at this working [template](https://git.xdrm.io/example/aicra/src/master/api.json). This file defines : -- resources routes and their methods +- resource routes and their methods - every input for each method (called *argument*) - every output for each method -- scope permissions -- input policy : type, required/optional, default value, variable renaming, etc. +- scope permissions (list of permissions you can compose) +- input policy : + - type of argument + - required/optional + - default value + - variable renaming -##### 2. Controllers +##### 3. Controllers -For each route, you'll have to place your implementation into the `controller` folder following the naming convention : add `/main.go` at the end of the route. +Controllers implement `Get`, `Post`, `Put`, and `Delete` methods, and have access to special variables surrounded by underscores : -> Example - `/path/to/some/uri` will be inside `controller/path/to/some/uri/main.go`. - -A sample directory structure is available [here](https://git.xdrm.io/example/aicra/src/master/controller). +- `_HTTP_METHOD_` the request's HTTP method in uppercase +- `_SCOPE_` the scope filled by middlewares +- `_AUTHORIZATION_` the request's **Authorization** header -##### 3. Middlewares +Also special variables found in the return data are processed with special actions : -In order for your project to manage authentication, the best solution is to create middlewares, there are programs that updates a *Scope* according to internal or persistent (*i.e.* database) information and the actual http request. They are all run before each request is forwarded to your controller. The scope are used to match the `scope` field in the configuration file and automatically block non-authenticated requests. Scopes can also be used for implementation-specific behavior. +- `_REDIRECT_` will redirect to the URL contained in the variable -Each middleware must be directly inside the `middleware` folder. +###### Plugin driver + +For each route, you'll have to place your implementation into the `controller` folder (according to the *aicra.json* configuration) following the naming convention : add `/main.go` at the end of the route. + +> Example - `/path/to/some/uri` will be inside `controller/path/to/some/uri/main.go` + +> Exception - `/` will be inside `controller/ROOT/main.go` + +A sample directory structure is available [here](https://git.xdrm.io/example/aicra/src/master/controller.plugin). + + + +Each controller must implement the `git.xdrm.io/go/aicra/driver.Controller` interface. In addition you must declare the function `func Export() Controller` to allow dynamic loading of your controller. + +###### Generic driver + +This is the same as with the plugin driver but instead of without `/main.go` at the end. + +> Example - `/path/to/some/uri` will be inside `controller/path/to/some/uri` where the **uri** file is an executable. + +> Exception - `/` will be inside `controller/ROOT`. + +A sample directory structure is available [here](https://git.xdrm.io/example/aicra/src/master/controller.generic). + + + + + +##### 4. Middlewares + +In order for your project to manage authentication, the best solution is to create middlewares, there are programs that updates a *Scope* (*i.e. a list of strings*) according to internal or persistent (*i.e.* database) information and the actual http request. They are all run before each request is forwarded to your controller. The scope are used to match the `scope` field in the configuration file and automatically block non-authenticated requests. Scopes can also be used for implementation-specific behavior such as _CSRF_ management. Controllers have access to the scope through the variable `_SCOPE_`. + + + +###### Plugin driver + +Each middleware must be **directly** inside the `middleware` folder (according to the _aicra.json_ configuration). > Example - the `1-authentication` middleware will be inside `middleware/1-authentication/main.go`. **Note** - middleware execution will be ordered by name. Prefixing your middlewares with their order is a good practice. - - -##### 4. Custom types - -In your configuration you will have to use built-in types (*e.g.* int, any, varchar), but if you want project-specific ones, you can add your own types inside the `type` folder. You can check what structure to follow by looking at the [built-in types](https://git.xdrm.io/go/aicra/src/master/internal/checker/default). +A sample directory structure is available [here](https://git.xdrm.io/example/aicra/src/master/middleware.plugin). -Each type must be inside a unique package directly inside the `type` folder. The package name is arbitrary and does not have to match the name (but it is better if it is explicit), because the `Match()` method already matches the name. +Each middleware must implement the `git.xdrm.io/go/aicra/driver.Middleware` interface. In addition you must declare the function `func Export() Middleware` to allow dynamic loading of your middleware. + + + +###### Generic driver + +This is the same as with the plugin driver but instead of without `/main.go` at the end. + +> Example - the `1-authentication` middleware will be inside `middleware/1-authentication` where **1-authentication** is an executable + +A sample directory structure is available [here](https://git.xdrm.io/example/aicra/src/master/middleware.generic). + + + +##### 5. Custom types + +In your configuration you will have to use built-in types (*e.g.* int, any, varchar), but if you want project-specific ones, you can add your own types inside the `type` folder. You can check what structure to follow by looking at the [built-in types](https://git.xdrm.io/go/aicra/src/master/internal/checker/default). Also it is not required that you use built-in types, you can ignore them by setting `types.default = false` in the _aicra.json_ configuration. + +Each type must be **directly** inside the `type` folder. The package name is arbitrary and does not have to match the name (but it is better if it is explicit), because the `Match()` method already matches the name. + +###### Plugin driver + +Each type checker must be **directly** inside the `type` folder (according to the _aicra.json_ configuration). + +> Example - the `number` type checker will be inside `type/number/main.go`. + +A sample directory structure is available [here](https://git.xdrm.io/example/aicra/src/master/type.plugin). + +###### Generic driver + +This is the same as with the plugin driver but instead of without `/main.go` at the end. + +> Example - the `number` type checker will be inside `type/number` where **number** is an executable + +A sample directory structure is available [here](https://git.xdrm.io/example/aicra/src/master/type.generic). #### III. Build your project -After each controller, middleware or type edition, you'll have to rebuild the project. This can be achieved through the command-line builder. +After each controller, middleware or type implementation, you'll have to compile the project. This can be achieved through the command-line builder. -Usage is `aicra [options] /path/to/your/project`. - -Options: - -- `-c` - overrides the default controllers path ; default is `./controller` -- `-m` - overrides the default middlewares path ; default is `./middleware` -- `-t` - overrides the default custom types path ; default is `./custom-types` +Usage is `aicra /path/to/your/project`. -For a project that does not need a different structure, you just have to run this command under your project root +Usually you just have to run the following command inside your project directory : ```bash aicra . @@ -175,8 +263,8 @@ import ( func main() { - // 1. create server - server, err := aicra.New("manifest.json") + // 1. create the API from the configuration file + server, err := aicra.New("api.json") if err != nil { panic(err) } @@ -217,3 +305,14 @@ func main() { - [x] generic controllers implementation (shared objects) - [x] response interface - [ ] devmode watcher : watch manifest, watch plugins to compile + hot reload them +- [x] driver for Go plugins + - [x] controllers + - [x] middlewares + - [x] type checkers +- [x] driver working with any executable through standard input and output + - [x] controllers + - [x] middlewares + - [x] type checkers +- [x] project configuration file to select **driver**, source folders and whether to load default type checkers. + - [x] used to compile the project by the `aicra` command + - [x] used to create an API from `aicra.New()`