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### Related issues Closes #15358 <!-- After filing upstream, replace XXXX with your issue number. --> --- ### What problem does this PR solve? `POST /api/v1/openai/<chat_id>/chat/completions` forwards `messages` to `async_chat` without normalizing `content`. Downstream, `dialog_service` assumes string content: ```python re.sub(r"##\d+\$\$", "", m["content"]) ``` OpenAI-compatible clients may send `content` as an **array** of parts (text, `image_url`, etc.), including text-only arrays. That causes `TypeError` and HTTP **500** instead of a valid response or a clear **400**. `openai_api.py` also reads `messages[-1]["content"]` directly for `prompt` without handling list-shaped content. This PR normalizes array `content` to a string (concatenating `type: text` parts) before calling `async_chat`, matching a minimal OpenAI-compat path. Image parts can be documented as unsupported or handled in a follow-up if vision integration is required.
(1). Deploy RAGFlow services and images
https://ragflow.io/docs/build_docker_image
(2). Configure the required environment for testing
Install Python dependencies (including test dependencies):
uv sync --python 3.13 --only-group test --no-default-groups --frozen
Activate the environment:
source .venv/bin/activate
Install SDK:
uv pip install sdk/python
Modify the .env file: Add the following code:
COMPOSE_PROFILES=${COMPOSE_PROFILES},tei-cpu
TEI_MODEL=BAAI/bge-small-en-v1.5
RAGFLOW_IMAGE=infiniflow/ragflow:v0.25.6 #Replace with the image you are using
Start the container（wait two minutes）:
docker compose -f docker/docker-compose.yml up -d
(3). Test Elasticsearch
a) Run sdk tests against Elasticsearch:
export HTTP_API_TEST_LEVEL=p2
export HOST_ADDRESS=http://127.0.0.1:9380 # Ensure that this port is the API port mapped to your localhost
pytest -s --tb=short --level=${HTTP_API_TEST_LEVEL} test/testcases/test_sdk_api
b) Run http api tests against Elasticsearch:
pytest -s --tb=short --level=${HTTP_API_TEST_LEVEL} test/testcases/test_http_api
(4). Test Infinity
Modify the .env file:
DOC_ENGINE=${DOC_ENGINE:-infinity}
Start the container:
docker compose -f docker/docker-compose.yml down -v
docker compose -f docker/docker-compose.yml up -d
a) Run sdk tests against Infinity:
DOC_ENGINE=infinity pytest -s --tb=short --level=${HTTP_API_TEST_LEVEL} test/testcases/test_sdk_api
b) Run http api tests against Infinity:
DOC_ENGINE=infinity pytest -s --tb=short --level=${HTTP_API_TEST_LEVEL} test/testcases/test_http_api