AWS Bedrock invalid template issue

Support
,
2

Oi @taigofranca !!

Welcome to our community :hugs:

I believe that the issue here is that by default, BedrockEmbeddings from langchain will grab the credentials from ~/.aws/credentials, while Weaviate will accept those in headers.

So now you need to make sure that you pass a working langchain embeddings object, like so:

from langchain_aws import BedrockEmbeddings
embeddings = BedrockEmbeddings(model_id="amazon.titan-embed-text-v2:0", credentials_profile_name="my_cool_aws_profile")
result = embeddings.embed_query("This is a test")
print(result)

I was able to run a basic insert/generate with this code, but this will only Weaviate, and rely on the credentials you pass at the client instantiation

from weaviate.classes.config import Configure

client.collections.delete("DemoCollection")

collection = client.collections.create(
    "DemoCollection",
    vectorizer_config=[
        Configure.NamedVectors.text2vec_aws(
            name="title_vector",
            region="sa-east-1",
            source_properties=["title"],
            service="bedrock",
            model="amazon.titan-embed-text-v2:0",
        )
    ],
    generative_config=Configure.Generative.aws(
        region="sa-east-1",
        service="bedrock",
        model="amazon.titan-text-express-v1"
    )    
)

collection.data.insert({"title": "This is a test"})
obj = collection.generate.fetch_objects(
    include_vector=True, 
    limit=1, 
    single_prompt="Translate {title} to Portuguese"
).objects[0]
print(obj.generated)
print(len(obj.vector.get("title_vector")))

Let me know if this helps!