anil.recoil.org
Pure OCaml xxhash implementation
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ocaml-openapi/CLAUDE.md
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ocaml-openapi/CLAUDE.md
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# OCaml OpenAPI
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OpenAPI code generator for OCaml, specialized for:
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- **requests** HTTP library (Eio-based)
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- **jsont** for JSON codecs
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- Stdlib-first approach (avoiding Base/Core)
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- OCamldoc comments from OpenAPI descriptions
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## Quick Start
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```bash
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# Generate client from OpenAPI spec
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opam exec -- dune exec -- openapi-gen generate spec.json -o ./generated -n my_api
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# Include dune regeneration rules
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opam exec -- dune exec -- openapi-gen generate spec.json -o ./generated -n my_api --regen
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```
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## Generated Code Structure
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```
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output/
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├── dune # Build configuration (wrapped library)
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├── dune.inc # Regeneration rules (if --regen used)
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├── types.ml # Type definitions with jsont codecs
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├── types.mli # Type interfaces
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├── client.ml # API client functions using requests
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├── client.mli # Client interface
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├── <api_name>.ml # Wrapped main module
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└── <api_name>.mli # Main module interface
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```
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## Usage
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After generation, you can use the API like:
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```ocaml
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(* Access types through the wrapped module *)
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let album : Immich.Types.AlbumResponseDto.t = ...
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(* Create a client and make requests *)
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Eio_main.run @@ fun env ->
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Eio.Switch.run @@ fun sw ->
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let client = Immich.Client.create ~sw env ~base_url:"http://localhost:2283/api" in
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let json = Immich.Client.get_activities ~album_id:"..." client () in
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...
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```
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## Regeneration with Dune
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When using `--regen`, the generated `dune.inc` contains rules for:
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```bash
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# Regenerate and promote changes
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dune build @gen --auto-promote
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```
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## Architecture
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- `lib/openapi_spec.ml` - OpenAPI 3.x specification types with jsont codecs
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- `lib/openapi_codegen.ml` - Code generation from spec to OCaml
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- `lib/openapi_runtime.ml` - Runtime utilities for generated clients
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- `bin/openapi_cli.ml` - CLI tool
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## Build & Test
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```bash
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opam exec -- dune build
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opam exec -- dune test
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```
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ocaml-openapi/LICENSE.md
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ocaml-openapi/LICENSE.md
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## ISC License
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Copyright (c) Anil Madhavapeddy
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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PERFORMANCE OF THIS SOFTWARE.
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ocaml-openapi/dune-project
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ocaml-openapi/dune-project
···
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(generate_opam_files true)
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(license ISC)
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(authors "Anil Madhavapeddy")
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(homepage "https://tangled.org/@anil.recoil.org/ocaml-openapi")
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(maintainers "Anil Madhavapeddy <anil@recoil.org>")
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(maintenance_intent "(latest)")
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(source (tangled anil.recoil.org/ocaml-openapi))
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(homepage "https://tangled.org/@anil.recoil.org/ocaml-openapi")
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(bug_reports "https://tangled.org/@anil.recoil.org/ocaml-openapi/issues")
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(package
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(name openapi)
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(synopsis "OpenAPI code generator for OCaml with requests and jsont")
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(description
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"Generate type-safe OCaml API clients from OpenAPI 3.x specifications.
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Uses the requests HTTP library and jsont for JSON codecs.")
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Uses the requests HTTP library and jsont for JSON codecs.")
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(depends
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(ocaml (>= 5.1.0))
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jsont
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ocaml-openapi/openapi.opam
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ocaml-openapi/openapi.opam
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synopsis: "OpenAPI code generator for OCaml with requests and jsont"
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description: """
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Generate type-safe OCaml API clients from OpenAPI 3.x specifications.
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Uses the requests HTTP library and jsont for JSON codecs."""
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Uses the requests HTTP library and jsont for JSON codecs."""
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maintainer: ["Anil Madhavapeddy <anil@recoil.org>"]
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authors: ["Anil Madhavapeddy"]
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license: "ISC"
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homepage: "https://tangled.org/@anil.recoil.org/ocaml-openapi"
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bug-reports: "https://tangled.org/anil.recoil.org/ocaml-openapi/issues"
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bug-reports: "https://tangled.org/@anil.recoil.org/ocaml-openapi/issues"
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depends: [
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"dune" {>= "3.21"}
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"ocaml" {>= "5.1.0"}