Add endpoint examples defined in the spec to API servers

[wing328]

Description

Similar to what we've done for SpringMVC generator, we want to add support of endpoint examples defined in the spec to the auto-generated server stubs.

Ref: https://github.com/swagger-api/swagger-codegen/pull/5411

Endpoint example support in the server generators:

• [ ] C# (NancyFx, ASP.net Core)
• [ ] Elixir
• [ ] Erlang
• [ ] Go
• [ ] Haskell Servant
• [ ] JavaScript/NodeJS
• [ ] Java (MSF4J, Spring:white_check_mark:, Undertow, JAX-RS: CDI, CXF, Inflector, RestEasy)
• [ ] PHP (Lumen, Slim, Silex, Zend Expressive)
• [ ] Python Flask
• [ ] Ruby (Sinatra, Rails)
• [ ] Scala Finch
• [ ] Scala Scalatra

Suggest a Fix

5411 is a good reference. If anyone wants to contribute to this task, please reply to let us know. Thank you.

[thure]

Just a heads-up: I'm looking into doing a Lumen branch based on #5411. Thanks for organizing everything here 😄

[wing328]

Thanks @thure.

FYI. The lambda functions have been renamed to lambdaEscapeDoubleQuote and lambdaRemoveLineBreak