@nestjs/swagger: How to add API URL?

Question

I'm using @nestjs/swagger. Here is the simple example how I'm using it

    const document = SwaggerModule.createDocument(
      app,
      new DocumentBuilder()
        .setTitle('API')
        .setDescription('API')
        .setVersion('1.0')
        .addBearerAuth()
        .build(),
    );

    SwaggerModule.setup('/api/doc', app, document);

Before I could add API url using setHost('URL HERE') but now it is not working. So I want to add api url to which will be sent the requests from the Swagger UI. I'm beginner so sorry if the question is not very smart Thanks!

Answer 1

Looks like you are using @nestjs/swagger version 4***. setHost was removed in version 4*** but was available in version 3***. If it works before I guess the version of @nestjs/swagger was updated in your project.

As you can see here

If you're currently using @nestjs/swagger@3.*, note the following breaking/API changes in version 4.0.

The following decorators have been changed/renamed:

• @ApiModelProperty is now @ApiProperty
• @ApiModelPropertyOptional is now @ApiPropertyOptional
• @ApiResponseModelProperty is now @ApiResponseProperty
• @ApiImplicitQuery is now @ApiQuery
• @ApiImplicitParam is now @ApiParam
• @ApiImplicitBody is now @ApiBody
• @ApiImplicitHeader is now @ApiHeader
• @ApiOperation({ title: 'test' }) is now @ApiOperation({ summary: 'test' })
• @ApiUseTags is now @ApiTags

DocumentBuilder breaking changes (updated method signatures):

• addTag
• addBearerAuth
• addOAuth2
• setContactEmail is now setContact
• setHost has been removed
• setSchemes has been removed (use the addServer instead, eg, addServer('http://'))

The following methods have been added:

• addServer
• addApiKey
• addBasicAuth
• addSecurity
• addSecurityRequirements

So if you need to add the API URL to you Swagger UI page, you can do that by adding .addServer(API_URL) . API_URL can be either something like /api or https://example.com/api . And it can be added multiple times. If you need for example URL for local usage, development, and production environments.

The full example will look like

const document = SwaggerModule.createDocument(
      app,
      new DocumentBuilder()
        .setTitle('API')
        .setDescription('API')
        .setVersion('1.0')
        .addBearerAuth()
        .addServer(API_URL)
        .build(),
    );

    SwaggerModule.setup(swaggerPath, app, document);

Answer 2

i think you might be missing the 'includes' param of where the controller is. try to add

   const document = SwaggerModule.createDocument(
  app,
  new DocumentBuilder()
    .setTitle('API')
    .setDescription('API')
    .setVersion('1.0')
    .addBearerAuth()
    .build(),
    { incliude: [ModuleWhereControllerIs]  }
);