OpenAPITools / OpenAPITools/openapi-generator
[REQ] Support for registering additional handlebars helpers
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- Dominant language
- Java
- Stars
- 26.8k
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Description
Is your feature request related to a problem? Please describe.
I'm unable to register additional helpers in the HandlebarsEngineAdapter: https://github.com/OpenAPITools/openapi-generator/blob/057a56a8272aa9723278acc860abd6b24890d582/modules/openapi-generator/src/main/java/org/openapitools/codegen/templating/HandlebarsEngineAdapter.java#L80-L88
Describe the solution you'd like
Support for registering a callback function that is invoked with the Handlebars instance, or refactoring HandlebarsEngineAdapter so that it may be extended to without duplicating all the compileTemplate logic.
Describe alternatives you've considered
Currently I've extended HandlebarsEngineAdapter, but also had to copy most logic from compileTemplate as it's not extensible.
Additional context
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with modules/openapi-generator/src/main/java/org/openapitools/codegen/templating/HandlebarsEngineAdapter.java, especially the compileTemplate logic and the referenced helper-registration lines. Determine how to expose Handlebars customization without requiring callers to duplicate that logic; done means an extension can register additional helpers through the supported mechanism.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- handlebars, java
- Domain
- tooling
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100