Upsert

# Option 1: Dictionary format
index.upsert(items)

# Option 2: Separate arrays  
index.upsert(ids, vectors)

[
  {
    "id": str, # Unique identifier for the vector
    "vector": List[float], # The vector data
    "contents": str, # Optional text content associated with the vector
    "metadata": Dict # Optional key-value pairs for filtering and retrieval
  },
  ...
]

# Basic vector upsert
items = [
    {
        'id': 'doc1',
        'vector': [0.1, 0.2, 0.3, 0.4]
    },
    {
        'id': 'doc2', 
        'vector': [0.5, 0.6, 0.7, 0.8]
    }
]

index.upsert(items)

import numpy as np

# Using separate arrays
ids = ['vec1', 'vec2', 'vec3']
vectors = np.random.rand(3, 128).astype(np.float32)

index.upsert(ids, vectors)