Add New POST Endpoint /memory/recall

[dave90]

Description

This PR create a new POST endpoint /memory/recall that accept a json with this format:

{
    "text": "...",
    "k": 34,
    "metadata": {}
}

metadata is a simple flat dictionary to search in AND

Endpoint GET /memory/recall remain and log a warning that is going to be deprecated in the next major version.

Related to issue #899

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas

[lucagobbi]

A POST request to get info from the vector database?🤔

How would you filter by metadata using a GET request? POST seems to be a pretty common practice: Qdrant, Pinecone

[pieroit]

A POST request to get info from the vector database?🤔

How would you filter by metadata using a GET request? POST seems to be a pretty common practice: Qdrant, Pinecone

Can confirm, using POST for queries is ugly but pragmatically used everywhere

[pieroit]

Thanks @dave90 !!
Didn't know there was a deprecated flag in fastAPI