Function authFetch

packages/core/src/plugin/provider/google-vertex.ts:41–55

(fetchWithRuntimeOptions?: unknown)

}

function authFetch(fetchWithRuntimeOptions?: unknown) {
  // Native Vertex SDKs handle ADC internally. OpenAI-compatible Vertex endpoints
  // do not, so inject a Google access token into their fetch path.
  return async (input: Parameters<typeof fetch>[0], init?: RequestInit) => {
    const { GoogleAuth } = await import("google-auth-library")
    const auth = new GoogleAuth({ scopes: ["https://www.googleapis.com/auth/cloud-platform"] })
    const client = await auth.getClient()
    const token = await client.getAccessToken()
    const headers = new Headers(init?.headers)
    headers.set("Authorization", `Bearer ${token.token}`)
    return typeof fetchWithRuntimeOptions === "function"
      ? fetchWithRuntimeOptions(input, { ...init, headers })
      : fetch(input, { ...init, headers })
  }
}

export const GoogleVertexPlugin = define({
  id: "google-vertex",