swagger-express-ts

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swagger-express-ts

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Generate and serve swagger.json

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# swagger-express-ts
Automatically generate and serve swagger.json v2.0.

## Getting started

First, install [swagger-express-ts](https://www.npmjs.com/package/swagger-express-ts).

```sh
npm install swagger-express-ts --save
```

and [init tsconfig.json](./wiki/installation.md)

## The Basics

In the examples below, we use [inversify-express-utils](https://www.npmjs.com/package/inversify-express-utils). inversify-express-utils is not required to work with swagger-express-ts.

### Step 1: configure express

```ts
import * as bodyParser from "body-parser";
import * as express from "express";
import "reflect-metadata";
import { Container } from "inversify";
import { interfaces, InversifyExpressServer, TYPE } from "inversify-express-utils";
import { VersionController } from "./version/version.controller";
import * as swagger from "swagger-express-ts";
import { SwaggerDefinitionConstant } from "swagger-express-ts";
const config = require ( "../config.json" );

// set up container
const container = new Container ();

// note that you *must* bind your controllers to Controller
container.bind<interfaces.Controller> ( TYPE.Controller )
    .to( VersionController ).inSingletonScope().whenTargetNamed( VersionController.TARGET_NAME );

// create server
const server = new InversifyExpressServer ( container );

server.setConfig( ( app : any ) => {
    app.use( '/api-docs/swagger' , express.static( 'swagger' ) );
    app.use( '/api-docs/swagger/assets' , express.static( 'node_modules/swagger-ui-dist' ) );
    app.use( bodyParser.json() );
    app.use( swagger.express(
        {
            definition : {
                info : {
                    title : "My api" ,
                    version : "1.0"
                } ,
                externalDocs : {
                    url : "My url"
                }
                // Models can be defined here
            }
        }
    ) );
} );

server.setErrorConfig( ( app : any ) => {
    app.use( ( err : Error , request : express.Request , response : express.Response , next : express.NextFunction ) => {
        console.error( err.stack );
        response.status( 500 ).send( "Something broke!" );
    } );
} );

const app = server.build();

app.listen( config.port );
console.info( "Server is listening on port : " + config.port );

```

### Step 2: Decorate your models

```ts
@ApiModel( {
    description : "Version description" ,
    name : "Version"
} )
export class VersionModel {

@ApiModelProperty( {
        description : "Id of version" ,
        required : true,
        example: ['123456789']
    } )
    id : number;

@ApiModelProperty( {
        description : "" ,
        required : true
    } )
    name : string;

@ApiModelProperty( {
        description : "Description of version" ,
        required : true
    } )
    description : string;
}
```

### Step 3: Decorate your controllers

```ts
@ApiPath({
    path: "/versions",
    name: "Version",
    security: { basicAuth: [] }
})
@controller("/versions")
@injectable()
export class VersionController implements interfaces.Controller {
    public static TARGET_NAME: string = "VersionController";
    
    private data = [{
            id: "1",
            name: "Version 1",
            description: "Description Version 1",
            version: "1.0.0"
        },
        {
            id: "2",
            name: "Version 2",
            description: "Description Version 2",
            version: "2.0.0"
        }];

@ApiOperationGet({
        description: "Get versions objects list",
        summary: "Get versions list",
        responses: {
            200: { description: "Success", type: SwaggerDefinitionConstant.Response.Type.ARRAY, model: "Version" }
        },
        security: {
            apiKeyHeader: []
        }
    })
    @httpGet("/")
    public getVersions(request: express.Request, response: express.Response, next: express.NextFunction): void {
        response.json(this.data);
    }

@ApiOperationPost({
        description: "Post version object",
        summary: "Post new version",
        parameters: {
            body: { description: "New version", required: true, model: "Version" }
        },
        responses: {
            200: { description: "Success" },
            400: { description: "Parameters fail" }
        }
    })
    @httpPost("/")
    public postVersion(request: express.Request, response: express.Response, next: express.NextFunction): void {
        if (!request.body) {
            return response.status(400).end();
        }
        this.data.push(request.body);
        response.json(request.body);
    }

}
```

### Step 4: Test

Start your server and test on url : /api-docs/swagger.json

## Extra

### Serve swagger-ui in your API

You can serve swagger.json and swagger-ui in your API.

```sh
npm install swagger-ui-dist --save
```

Create index.html in new directory "swagger".

```html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Swagger UI</title>
    <link href="https://fonts.googleapis.com/css?family=Open+Sans:400,700|Source+Code+Pro:300,600|Titillium+Web:400,600,700"
          rel="stylesheet">
    <link rel="stylesheet" type="text/css" href="/api-docs/swagger/assets/swagger-ui.css">
    <link rel="icon" type="image/png" href="/api-docs/swagger/assets/favicon-32x32.png" sizes="32x32"/>
    <link rel="icon" type="image/png" href="/api-docs/swagger/assets/favicon-16x16.png" sizes="16x16"/>
    <style>
        html {
            box-sizing: border-box;
            overflow: -moz-scrollbars-vertical;
            overflow-y: scroll;
        }

*,
        *:before,
        *:after {
            box-sizing: inherit;
        }

body {
            margin: 0;
            background: #fafafa;
        }
    </style>
</head>

<body>

</defs>
</svg>

// Build a system
        const ui = SwaggerUIBundle ({
            url: "/api-docs/swagger.json",
            dom_id: '#swagger-ui',
            deepLinking: true,
            presets: [
                SwaggerUIBundle.presets.apis,
                SwaggerUIStandalonePreset
            ],
            plugins: [
                SwaggerUIBundle.plugins.DownloadUrl
            ],
            layout: "StandaloneLayout",
            validatorUrl: null
        });

window.ui = ui
    }
</script>
</body>

</html>

```

Configure your server like that.

```ts
app.use( '/api-docs/swagger', express.static( 'swagger' ) );
app.use( '/api-docs/swagger/assets', express.static( 'node_modules/swagger-ui-dist' ) );
```

Test it on url "/api-docs/swagger".

![](https://raw.githubusercontent.com/olivierlsc/swagger-express-ts/master/wiki/img/swagger-ui.png)

## Project example

You can quickly test swagger-express-ts with the project example [example-swagger-express-ts](https://github.com/olivierlsc/example-swagger-express-ts).

## Features and API

- [Installation](./wiki/installation.md)
- [Configuration](./wiki/configuration.md)
- [@ApiModel](./wiki/api-model.decorator.md)
- [@ApiModelProperty](./wiki/api-model-property.decorator.md)
- [@ApiPath](./wiki/api-path.decorator.md)
- [@ApiOperationGet](./wiki/api-operation-get.decorator.md)
- [@ApiOperationPost](./wiki/api-operation-post.decorator.md)
- [@ApiOperationPut](./wiki/api-operation-put.decorator.md)
- [@ApiOperationPatch](./wiki/api-operation-patch.decorator.md)
- [@ApiOperationDelete](./wiki/api-operation-delete.decorator.md)

## For any questions, suggestions, or feature requests

[Please file an issue](https://github.com/olivierlsc/swagger-express-ts/issues)!

## Help wanted

swagger-express-ts wants additional maintainers! To maintain and continue to develop this young library, [Please post in this issue](https://github.com/olivierlsc/swagger-express-ts/issues/34).

swagger-express-ts

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