Serverless issue

I’m submitting a…

[ ] Regression 
[x] Bug report
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

Swagger endpoint is not found.

Expected behavior

Html response generated by swagger-ui.

Minimal reproduction of the problem with instructions

Here is an example I use in my project.

What is the motivation / use case for changing the behavior?

I’d like to generate swagger documents based on my modules and endpoints, but I cannot.

Environment

"@nestjs/common": "^5.4.0",
"@nestjs/core": "^5.4.0",
"@nestjs/swagger": "^2.5.1",
"aws-serverless-express": "^3.3.5",
"express": "^4.16.4",

 
For Tooling issues:
- Node version: 8.10  
- Platform: Mac 


Others:
I run my environment with serverless and serverless-offline plugin

[plorencrstit]

I had the same problem before with typeorm. My solution was to manually listed entities in the configuration file. So I have two kind of settings.

  entities: [`${__dirname}/../**/*.entity{.ts,.js}`],
  ...typeOrmConfigGeneral,
};

export const typeOrmConfigServerless: TypeOrmModuleOptions = {
  entities: [
    Category,
    Comment,
    Discussion,
  ],
  ...typeOrmConfigGeneral,
};

I choose the configuration based on some env.

Do you use typeorm?

[jtmthf]

@csakbalint I just ran into this the other day. The problem is that given a swagger path of swagger, swagger-ui-express serves its html file from /swagger/ and will redirect if the request path is /swagger. Unfortunately API Gateway strips the trailing slash from the request path so you have to add it back with the block below.

if (event.path === '/swagger') {
  event.path = '/swagger/';
}

This cannot be done as a middleware as req.path from express is a getter and will throw an error if you try to overwrite it.