[FEATURE] New API Client generated from spec

[shyim]

Is your feature request related to a problem?

I would like to have a new API Client which is generated from spec files.

• Saves time adding new stuff
• Use it everywhere the same way
• https://github.com/opensearch-project/opensearch-clients/issues/19
• Getting rid of #95

What solution would you like?

Use https://github.com/opensearch-project/opensearch-api-specification to generate files by

• Writing an own Code Generation tool
  • Swagger Codegen has a very bad generated code
  • Look into AsyncAWS Code Generator https://github.com/async-aws/aws/tree/master/src/CodeGenerator
• Use virtual package for http: https://twitter.com/nicolasgrekas/status/1583454980769730560

What alternatives have you considered?

Still doing as now and adding anything manually

Do you have any additional context?

Add any other context or screenshots about the feature request here.

[nhtruong]

HI @shyim, are you interested in taking a crack at this? We have several examples of how this is done on other clients where the OpenAPI Spec were translated into API code:

• Ruby (Incremental Generation for new endpoints)
• Python (Generation of all endpoints)

We also have a simple guide for this. It does not cover everything. If you have any questions, please don't hesitate to ask. :)

[saimedhi]

Hello @shyim,

I'm Sai, and I'm excited to contribute to the opensearch-php project. I've previously worked on improving the opensearch-py generator, and I'm eager to apply my skills to the opensearch-php generator.

To get started, I'll review the existing generator code here.

I'll keep you updated on my progress. I appreciate your feedback and guidance as I work on this.

Thank you!