Weaviate Cloud

Follow these steps to connect to a Weaviate Cloud (WCD) instance.

Retrieve your API keys

The WCD instances use API keys to authenticate.

To retrieve your API keys, follow these steps:

1. Open the WCD console and find the details panel for your cluster.

2. Click the API keys button.
3. Copy the key and store it in a safe location.

Connection example

To connect, use the Weaviate URL and the Weaviate API key for your WCD instance to set the environment variables. Then, follow the example for your language.

Python Client v4

# Set these environment variables
# WEAVIATE_URL       your Weaviate instance URL
# WEAVIATE_API_KEY   your Weaviate instance API key

import weaviate
from weaviate.auth import AuthApiKey

# Connect to Weaviate Cloud
client = weaviate.connect_to_weaviate_cloud(
    cluster_url=os.getenv("WEAVIATE_URL"),
    auth_credentials=AuthApiKey(os.getenv("WEAVIATE_API_KEY")),
)

print(client.is_ready())

Python Client v3

# Set these environment variables
# WEAVIATE_URL       your Weaviate instance URL
# WEAVIATE_API_KEY   your Weaviate instance API key

import os
import weaviate

# Create the client
client = weaviate.Client(
    url=os.getenv("WEAVIATE_URL"),
    auth_client_secret=weaviate.auth.AuthApiKey(api_key=os.getenv("WEAVIATE_API_KEY")),
)

print(client.is_ready())

JS/TS Client v3

// Set these environment variables
// WEAVIATE_URL      your WCD instance URL
// WEAVIATE_API_KEY  your WCD instance API key

import weaviate, { WeaviateClient } from 'weaviate-client';

const client: WeaviateClient = await weaviate.connectToWeaviateCloud(
  process.env.WEAVIATE_URL,
  {
    authCredentials: new weaviate.ApiKey(process.env.WEAVIATE_API_KEY),
  }
)

JS/TS Client v2

// Set these environment variables
// WEAVIATE_URL      your WCD instance URL
// WEAVIATE_API_KEY  your WCD instance API key

import weaviate, { ApiKey } from 'weaviate-ts-client';

// Create the client
const client = weaviate.client({
  scheme: 'https',
  host: process.env.WEAVIATE_URL,
  apiKey: new ApiKey(process.env.WEAVIATE_API_KEY),
});

console.log(client)

Go

// Set these environment variables
// WEAVIATE_URL      your Weaviate instance URL
// WEAVIATE_API_KEY  your Weaviate instance API key

package main

import (
	"context"
	"fmt"
	"os"

	"github.com/weaviate/weaviate-go-client/v4/weaviate"
	"github.com/weaviate/weaviate-go-client/v4/weaviate/auth"
)

// Create the client
func CreateClient() {
	cfg := weaviate.Config{
		Host:       os.Getenv("WEAVIATE_URL"),
		Scheme:     "https",
		AuthConfig: auth.ApiKey{Value: os.Getenv("WEAVIATE_API_KEY")},
		Headers:    nil,
	}

	client, err := weaviate.NewClient(cfg)
	if err != nil {
		fmt.Println(err)
	}

	// Check the connection
	live, err := client.Misc().LiveChecker().Do(context.Background())
	if err != nil {
		panic(err)
	}
	fmt.Printf("%v", live)

}

func main() {
	CreateClient()
}

Java

// Set these environment variables
// WEAVIATE_URL      your Weaviate instance URL
// WEAVIATE_API_KEY  your Weaviate instance API key

package your.application;

import io.weaviate.client.Config;
import io.weaviate.client.WeaviateClient;
import io.weaviate.client.WeaviateAuthClient;

public class App
{
    public static void main( String[] args ) throws Exception
    {

    String scheme = "https";
    String host = System.getenv("WEAVIATE_URL");
    String apiKey = System.getenv("WEAVIATE_API_KEY");

    Config config = new Config(scheme, host);
    WeaviateClient client = WeaviateAuthClient.apiKey(config, apiKey);
    }
}

cURL

# Set these environment variables
# WEAVIATE_URL      your Weaviate instance URL
# WEAVIATE_API_KEY  your Weaviate instance API key

curl https://${WEAVIATE_URL}/v1/meta -H "Authorization: Bearer ${WEAVIATE_API_KEY}" | jq

Third party API keys

If you use API-based models for vectorization or RAG, you must provide an API key for the service. To add third party API keys, follow these examples:

Python Client v4

# Set these environment variables
# WEAVIATE_URL       your Weaviate instance URL
# WEAVIATE_API_KEY   your Weaviate instance API key
# COHERE_API_KEY     your Cohere API key

import os
import weaviate
from weaviate.auth import AuthApiKey

# Connect to Weaviate Cloud
client = weaviate.connect_to_weaviate_cloud(
    cluster_url=os.getenv("WEAVIATE_URL"),
    auth_credentials=AuthApiKey(os.getenv("WEAVIATE_API_KEY")),
    headers={
        "X-Cohere-Api-Key": os.getenv("COHERE_API_KEY")
    }
)

print(client.is_ready())

Python Client v3

# Set these environment variables
# WEAVIATE_URL       your Weaviate instance URL
# WEAVIATE_API_KEY   your Weaviate instance API key
# COHERE_API_KEY     your Cohere API key

import os
import weaviate
from weaviate.auth import AuthApiKey

# Connect to Weaviate Cloud
client = weaviate.Client(
    url=os.getenv("WEAVIATE_URL"),
    auth_client_secret=weaviate.auth.AuthApiKey(api_key=os.getenv("WEAVIATE_API_KEY")),
    additional_headers={
        "X-Cohere-Api-Key": os.getenv("COHERE_API_KEY"),
    },
)

print(client.is_ready())

JS/TS Client v3

// Set these environment variables
// WEAVIATE_URL      your Weaviate instance URL
// WEAVIATE_API_KEY  your Weaviate instance API key
// COHERE_API_KEY    your Cohere API key

import weaviate, { WeaviateClient } from 'weaviate-client';

const client: WeaviateClient = await weaviate.connectToWeaviateCloud(
  process.env.WEAVIATE_URL,
  {
    authCredentials: new weaviate.ApiKey(process.env.WEAVIATE_API_KEY),
    headers: {
     'X-Cohere-Api-Key': process.env.COHERE_API_KEY || '',
   }
  }
)

JS/TS Client v2

// Set these environment variables
// WEAVIATE_URL      your Weaviate instance URL
// WEAVIATE_API_KEY  your Weaviate instance API key
// COHERE_API_KEY    your Cohere API key

import weaviate, { ApiKey } from 'weaviate-ts-client';

// Create the client
const client = weaviate.client({
  scheme: 'https',
  host: process.env.WEAVIATE_URL,
  apiKey: new ApiKey(process.env.WEAVIATE_API_KEY),
  headers: {
    'X-Cohere-Api-Key': process.env.COHERE_API_KEY,
  },
});

console.log(client)

Go

// Set these environment variables
// WEAVIATE_URL      your Weaviate instance URL
// WEAVIATE_API_KEY  your Weaviate instance API key
// COHERE_API_KEY    your Cohere API key

package main

import (
  "context"
  "fmt"
  "os"
  "github.com/weaviate/weaviate-go-client/v4/weaviate"
  "github.com/weaviate/weaviate-go-client/v4/weaviate/auth"
)

// Create the client
func CreateClient() {
cfg := weaviate.Config{
    Host: os.Getenv("WEAVIATE_URL"),   // URL only, no scheme prefix
    Scheme: "https",
    AuthConfig: auth.ApiKey{Value: os.Getenv("WEAVIATE_API_KEY")},
    Headers: map[string]string{
        "X-Cohere-Api-Key": os.Getenv("WEAVIATE_COHERE_KEY"),
    },
}

client, err := weaviate.NewClient(cfg)
if err != nil{
    fmt.Println(err)
}

// Check the connection
live, err := client.Misc().LiveChecker().Do(context.Background())
if err != nil {
	panic(err)
}
fmt.Printf("%v", live)
}

func main() {
	CreateClient()
}

Java

// Set these environment variables
// WEAVIATE_URL      your Weaviate instance URL
// WEAVIATE_API_KEY  your Weaviate instance API key
// COHERE_API_KEY    your Cohere API key

package your.application;

import java.util.HashMap;
import java.util.Map;
import io.weaviate.client.Config;
import io.weaviate.client.WeaviateClient;
import io.weaviate.client.WeaviateAuthClient;

public class App
{
public static void main( String[] args ) throws Exception
{

String scheme = "https";
String host = System.getenv("WEAVIATE_URL");
String apiKey = System.getenv("WEAVIATE_API_KEY");
String cohereKey = System.getenv("COHERE_API_KEY");

Map<String, String> headers = new HashMap<String, String>() { {
    put("X-Cohere-Api-Key", cohereKey);
} };

Config config = new Config(scheme, host, headers);
WeaviateClient client = WeaviateAuthClient.apiKey(config, apiKey);
}
}

cURL

# Set these environment variables
# WEAVIATE_URL      your Weaviate instance URL
# WEAVIATE_API_KEY  your Weaviate instance API key
# COHERE_API_KEY    your Cohere API key

curl https://${WEAVIATE_URL}/v1/meta \
-H 'Content-Type: application/json' \
-H "X-Cohere-Api-Key: ${COHERE_API_KEY}" \
-H "Authorization: Bearer ${WEAVIATE_API_KEY}" | jq

Environment variables

danger

Do not hard-code API keys or other credentials in your client code. Use environment variables or a similar secure coding technique instead.

Environment variables keep sensitive details out of your source code. Your application imports the information to runtime.

Set an environment variable.

In these examples, the environment variable names are in UPPER_CASE.

Bash/Zsh

export WEAVIATE_URL="http://localhost:8080"
export WEAVIATE_API_KEY="sAmPleKEY8FwELJILn0YDRG9gjy4hReqfInz"

Windows PowerShell

$Env:WEAVIATE_URL="http://localhost:8080"
$Env:WEAVIATE_API_KEY="sAmPleKEY8FwELJILn0YDRG9gjy4hReqfInz"

Windows Command Prompt

set WEAVIATE_URL=http://localhost:8080
set WEAVIATE_API_KEY=sAmPleKEY8FwELJILn0YDRG9gjy4hReqfInz

Import an environment variable.

Python

weaviate_url = os.getenv("WEAVIATE_URL")
weaviate_key = os.getenv("WEAVIATE_API_KEY")

JS/TS

const weaviateUrl = process.env.WEAVIATE_URL;
const weaviateKey = process.env.WEAVIATE_API_KEY;

Go

weaviateUrl := os.Getenv("WEAVIATE_URL")
weaviateKey := os.Getenv("WEAVIATE_API_KEY")

Java

String weaviateUrl = System.getenv("WEAVIATE_URL");
String weaviateKey = System.getenv("WEAVIATE_API_KEY");

gRPC timeouts

The Python client v4 and TypeScript client v3 use gRPC. The gRPC protocol is sensitive to network delay. If you encounter connection timeouts, adjust the timeout values for initialization, queries, and insertions.

Python Client v4

# Set these environment variables
# WEAVIATE_URL       your Weaviate instance URL
# WEAVIATE_API_KEY   your Weaviate instance API key

import weaviate, os
from weaviate.auth import AuthApiKey
from weaviate.classes.init import AdditionalConfig, Timeout

# Connect to a WCD instance
client = weaviate.connect_to_weaviate_cloud(
    cluster_url=os.getenv("WEAVIATE_URL"),
    auth_credentials=AuthApiKey(os.getenv("WEAVIATE_API_KEY")),
    # skip_init_checks=True,
    additional_config=AdditionalConfig(
        timeout=Timeout(init=30, query=60, insert=120)  # Values in seconds
    )
)

print(client.is_ready())

JS/TS Client v3

// Set these environment variables
// WEAVIATE_URL       your Weaviate instance URL
// WEAVIATE_API_KEY   your Weaviate instance API key

import weaviate, { WeaviateClient } from 'weaviate-client';

const client: WeaviateClient = await weaviate.connectToWeaviateCloud(
  process.env.WEAVIATE_URL,
  {
    authCredentials: new weaviate.ApiKey(process.env.WEAVIATE_API_KEY),
    timeout: { init: 30, query: 60, insert: 120 } // Values in seconds
  }
)

console.log(client)

Questions and feedback

If you have any questions or feedback, let us know in the user forum.

• Technical questions
• Documentation feedback