client.py

# SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import asyncio

import uvloop

from dynamo.runtime import DistributedRuntime, dynamo_worker


@dynamo_worker()
async def worker(runtime: DistributedRuntime):
    await init(runtime, "dynamo")


async def init(runtime: DistributedRuntime, ns: str):
    """
    Instantiate a `backend` client and call the `generate` endpoint
    """
    # get endpoint
    endpoint = runtime.endpoint(f"{ns}.backend.generate")

    # create client
    client = await endpoint.client()

    # wait for an endpoint to be ready
    await client.wait_for_instances()

    # issue request
    stream = await client.generate("hello world")

    error_count = 0
    try:
        # process response
        async for char in stream:
            print(char)
    except ValueError:
        error_count += 1
        pass
    finally:
        assert error_count == 1

    stream = await client.generate("hello earth", annotated=False)

    async for char in stream:
        print(char)


if __name__ == "__main__":
    uvloop.install()
    asyncio.run(worker())