A tool for generating OCaml bindings to JavaScript libraries, simplifying cross-language interoperability.
gen_js_api is a tool for generating OCaml bindings to JavaScript libraries, enabling OCaml code to interact with JavaScript libraries seamlessly. It simplifies the process of creating cross-language bindings by handling value conversions and calling conventions automatically, primarily for use with the js_of_ocaml compiler.
OCaml developers who need to integrate JavaScript libraries into their projects, particularly those porting web applications from JavaScript to OCaml or building web applications with js_of_ocaml.
Developers choose gen_js_api because it eliminates the need for custom syntax or JS-specific types in client code, provides reliable production-ready bindings, and supports both interface generation and local binding definitions through a ppx preprocessor.
Easy OCaml bindings for Javascript libraries
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Client code uses normal OCaml syntax without custom types, as per the philosophy, ensuring clean and maintainable integration.
Used in production since 2015, demonstrating maturity and stability for real-world applications, as noted in the overview.
Supports both generating .ml from annotated .mli and local bindings via ppx, offering versatility for different use cases, documented in IMPLGEN.md and PPX.md.
Handles conversion between OCaml and JavaScript values and calling conventions automatically, reducing manual work for binding authors.
Currently only works with js_of_ocaml, as stated in the overview, excluding other compilers like ReScript without additional effort or future updates.
Requires authors to write annotated interfaces, which can be error-prone and demand deep knowledge of both OCaml and JavaScript APIs, as seen in the documentation.
The TODO list indicates missing features and ongoing development, which may limit advanced use cases or require workarounds.