Swagger: NestJS 7 + Azure Func

[kauandotnet]

Infinity load.

GET http://localhost:7071/api/swagger-ui-init.js net::ERR_ABORTED 404 (Not Found)

main.azure.ts

```
...
// SWAGGER CONFIGURATION
const options = new DocumentBuilder()
.setTitle('Test')
.setDescription('API Documentation')
.setVersion('1.0')
.addBearerAuth()
.build();

// RUN SWAGER
const document = SwaggerModule.createDocument(app, options);
SwaggerModule.setup('api', app, document);
...

package.json

...
"@azure/functions": "^1.0.3",
"@nestjs/azure-func-http": "^0.5.0",
"@nestjs/swagger": "^4.5.5",
"swagger-ui-express": "^4.1.4",
...
```

[kamilmysliwiec]

Would you like to create a PR for this issue?

[kauandotnet]

@kamilmysliwiec Sure, ill update soon

[jacobdo2]

Any luck on updating this? having the same issue.

[kauandotnet]

@jacobdo2 , im too busy now, can you provide a minimal repository? I can do it on monday...

[felipecrs]

Is there any workaround at the moment?

[felipecrs]

Repository for reproduction: https://github.com/felipecassiors/nestjs-swagger-azure-func

And you can try it right now in Gitpod: https://gitpod.io/#https://github.com/felipecassiors/nestjs-swagger-azure-func

Just run:

npm install
npm run azure:start

See it works with nest start

But not with func host start

[kauandotnet]

Repository for reproduction: https://github.com/felipecassiors/nestjs-swagger-azure-func

And you can try it right now in Gitpod: https://gitpod.io/#https://github.com/felipecassiors/nestjs-swagger-azure-func

Just run:

npm install
npm run azure:start

See it works with nest start

But not with func host start

Thanks, @kamilmysliwiec can you check this?

[K1kk3rt]

Any idea when this will be fixed? I saw a pull request with a solution but it hasn't been merged yet. Kinda desperate for this since I really want to use nestjs, but if it doesn't work with swagger in combination with azure functions I need to use something else

[TLaMars]

Hi,
My company is looking for this solution.
Is there any idea when this issue will be fixed? My company really needs a solution, because we use azure functions and nestjs a lot and want to have swagger working in it.

[jacobdo2]

My not a solution was to keep using azure function for calls and deploy the solution for swagger's sake somewhere else.

[abeebola]

I have this issue too. My workaround for the swagger-ui-init.js (using an nginx server) was to add the following directive:

location = /swagger/swagger-ui-init.js {
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Host $http_host;

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        proxy_pass http://api_upstream/swagger/swagger-ui-init.js;
        proxy_redirect off;
        proxy_read_timeout 240s;
}

By using this exact match, the request is passed directly to NestJS.
The problem was that nginx was trying to find the file which doesn't actually exist

[kamilmysliwiec]

This issue should be reported in the swagger-ui-express repository.