[Lua] Add API client generation

[daurnimator]

Add lua API client generation.

Probably using lua-http

[wing328]

@daurnimator sounds good to me :)

May I know if you're working on the Lua generator? Do you need any help from us (the community)?

[daurnimator]

May I know if you're working on the Lua generator?

Not yet. Though I'm considering it.

Do you need any help from us (the community)?

Indeed: I'm not sure where to start. (I've just had a look around at some of the other generators: shouldn't be too hard to translate...)

[wing328]

We recently add the Bash generator via #4541, which may serve as a good starting point to add a new client generator.

[zjarkov]

Hi, didn't try it personally wth swagger but lua-Spore is not sufficient?

[daurnimator]

Hi, didn't try it personally wth swagger but lua-Spore is not sufficient?

I didn't realise lua-Spore had a swagger component. It might actually be suitable for me.

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I'm wondering if adding lua support to swagger-codegen is the most useful thing to do. I feel like a fully dynamic-runtime approach like swagger-js took might be more appropriate.

[wing328]

@daurnimator dynamic client approach (e.g. swagger-js, lua-spore) is definitely one way to do it but some developers prefer static clients generated by Swagger Codegen.

[kigsmtua]

@daurnimator any progress on this

[wing328]

@daurnimator @zjarkov @kigsmtua similar to PowerShell and Rust, we can go through the same approach by creating a Lua API client for PetStore by focusing on a few endpoints.

• GET
• POST (form)
• POST (JSON body)

The Lua code can be put in the folder samples/client/petstore/lua.

Then we can reverse-engineer the Lua code to create the mustache templates and the generator in Java.