---
title: "POST /call/UnionTest_Function"
method: POST
path: "/call/UnionTest_Function"
---

# POST /call/UnionTest_Function

`POST /call/UnionTest_Function`

## Request body

- object
  - `input` union, required
    - string
    - boolean
  - `__baml_options__` BamlOptions
    - `client_registry` object, required
      - `clients` ClientProperty[], required
        - `name` string, required
        - `provider` string, required
        - `options` object, required
      - `primary` string

## Response `200`

Successful operation

- UnionTestReturnType
  - `prop1` union, required
    - string
    - boolean
  - `prop2` union[], required
    - union
      - number
      - boolean
  - `prop3` union, required
    - boolean[]
    - integer[]

---

[API](https://skmtc.dev/boundaryml/apis/baml-cli-serve.md) · [All operations](https://skmtc.dev/boundaryml/apis/baml-cli-serve/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/boundaryml/baml-cli-serve/revisions/3f3e2166cbf3/schema)