Pinecone Ruby Client

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This is the complete Pinecone API and fully tested. Bug reports and contributions are welcome!

Installation

gem install pinecone

Configuration

require "dotenv/load"
require 'pinecone'

Pinecone.configure do |config|
  config.api_key  = ENV.fetch('PINECONE_API_KEY')
  config.environment = ENV.fetch('PINECONE_ENVIRONMENT')
end

Index Operations

Listing Indexes

pinecone = Pinecone::Client.new
pinecone.list_indexes

Describe Index

pinecone.describe_index("example-index")

Create Index

pinecone.create_index({
  "metric": "dotproduct",
  "name": "example-index",
  "dimension": 3,
})

Delete Index

pinecone.delete_index("example-index")

Scale replicas

new_number_of_replicas = 4
pinecone.configure_index("example-index", {
  replicas: new_number_of_replicas
  pod_type: "s1.x1"
})

Vector Operations

Adding vectors to an existing index

pinecone = Pinecone::Client.new
index = pinecone.index("example-index")

index.upsert(
  namespace: "example-namespace",
  vectors: [{
    id: "1",
    metadata: {
      key: value
    },
    values: [
      0.1,
      0.2,
      0.0
    ]
  }]
)

Querying index with a vector

pinecone = Pinecone::Client.new
index = pinecone.index("example-index")
embedding = [0.0, -0.2, 0.4]
response = index.query(vector: embedding)

Querying index with options

pinecone = Pinecone::Client.new
index = pinecone.index("example-index")
embedding = [0.0, -0.2, 0.4]
response = index.query(vector: embedding, 
                        namespace: "example-namespace",
                        top_k: 10,
                        include_values: false,
                        include_metadata: true)

Fetching a vector from an index

pinecone = Pinecone::Client.new
index = pinecone.index("example-index")
index.fetch(
  ids: ["1"], 
  namespace: "example-namespace"
)

Updating a vector in an index

pinecone = Pinecone::Client.new
index = pinecone.index("example-index")
index.update(
  id: "1", 
  values: [0.1, -0.2, 0.0],
  set_metadata: { genre: "drama" },
  namespace: "example-namespace"
)

Deleting a vector from an index

Note, that only one of ids, delete_all or filter can be included. If ids are present or delete_all: true then the filter is removed from the request.

pinecone = Pinecone::Client.new
index = pinecone.index("example-index")
index.delete(
  ids: ["1"], 
  namespace: "example-namespace", 
  delete_all: false,
  filter: {
    "genre": { "$eq": "comedy" }
  }
)

Describe index statistics. Can be filtered - see Filtering queries

pinecone = Pinecone::Client.new
index = pinecone.index("example-index")
index.describe_index_stats(
  filter: {
    "genre": { "$eq": "comedy" }
  }
)

Filtering queries

Add a filter option to apply filters to your query. You can use vector metadata to limit your search. See metadata filtering in Pinecode documentation.

pinecone = Pinecone::Client.new
index = pinecone.index("example-index")
embedding = [0.0, -0.2, 0.4]
response = index.query(
  vector: embedding,
  filter: {
    "genre": { "$eq": "comedy" }
  }
)

Metadata filters can be combined with AND and OR. Other operators are also supported.

{ "$and": [{ "genre": "comedy" }, { "actor": "Brad Pitt" }] } # Genre is 'comedy' and actor is 'Brad Pitt'
{ "$or": [{ "genre": "comedy" }, { "genre": "action" }] } # Genre is 'comedy' or 'action'
{ "genre": { "$eq": "comedy" }} # Genre is 'comedy'
{ "favorite": { "$eq": true }} # Is a favorite
{ "genre": { "$ne": "comedy" }} # Genre is not 'comedy'
{ "favorite": { "$ne": true }} # Is not a favorite
{ "genre": { "$in": ["comedy", "action"] }} # Genre is in the specified values
{ "genre": { "$nin": ["comedy", "action"] }} # Genre is not in the specified values
{ "$gt": 1 }
{ "$gte": 0.5 }
{ "$lt": -0.5 }
{ "$lte": -1 }

Specifying an invalid filter raises ArgumentError with an error message.

Sparse Vectors

pinecone = Pinecone::Client.new
index = pinecone.index("example-index")
embedding = [0.0, -0.2, 0.4]
response = index.query(
  vector: embedding,
  sparse_vector: {
    indices: [10, 20, 30],
    values: [0, 0.5, -1]
  }
)

The length of indices and values must match.

Query by ID

pinecone = Pinecone::Client.new
index = pinecone.index("example-index")
embedding = [0.0, -0.2, 0.4]
response = index.query(
  id: "vector1"
)

Either vector or id can be supplied as a query parameter, not both. This constraint is validated.

Collection Operations

Creating a collection

pinecone = Pinecone::Client.new
pinecone.create_collection({
  name: "example-collection", 
  source: "example-index"
})

List collections

pinecone.list_collections

Describe a collection

pinecone.describe_collection("example-collection")

Delete a collection

pinecone.delete_collection("example-collection")

Contributing

Contributions welcome!

• Clone the repo locally
• bundle to install gems
• run tests with rspec
• mv .env.copy .env and add Pinecone API Key if developing a new endpoint or modifying existing ones
  • to disable VCR and hit real endpoints, NO_VCR=true rspec
• To setup cloud indexes when writing new tests ruby spec/support/setup.rb start and stop to delete them

License

The gem is available as open source under the terms of the MIT License.