/v1/embeddings expects a list of string input but not a single string not in list format

[AaronSeibert]

Based on https://platform.openai.com/docs/api-reference/embeddings, the input field should be either string or array type. I'm utilizing a client that's generating a 422 response from mlx-openai-server. I tried sending a sample request based on the openai docs:

❯ curl http://localhost:8000/v1/embeddings -H "Content-Type: application/json" -d '{"input":"embed this", "model": "mlx-community/all-MiniLM-L6-v2-4bit", "encoding_format": "float"}'

And I get the following response:
{"detail":[{"type":"list_type","loc":["body","input"],"msg":"Input should be a valid list","input":"embed this"}]}

When converting the input field to an array, it works successfully. However, this shows an incompatibility with the openai api specification

[cubist38]

Hi @AaronSeibert ,
I’ve just released version 1.3.8, which includes a refactor to ensure full compatibility with the OpenAI /v1/embeddings endpoint. You can check it out in the embedding_examples.

Please feel free to test it and let me know if you encounter any issues. Thank you!