Note: this example is using v0 version of the Firecrawl API. You can install the 0.0.20 version for the Python SDK or the 0.0.36 for the Node SDK.

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Setup

Install our python dependencies, including langchain, groq, faiss, ollama, and firecrawl-py.

pip install --upgrade --quiet langchain langchain-community groq faiss-cpu ollama firecrawl-py

We will be using Ollama for the embeddings, you can download Ollama here. But feel free to use any other embeddings you prefer.

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Load website with Firecrawl

To be able to get all the data from a website and make sure it is in the cleanest format, we will use Firecrawl. Firecrawl integrates very easily with Langchain as a document loader.

Here is how you can load a website with Firecrawl:

from langchain_community.document_loaders import FireCrawlLoader  # Importing the FirecrawlLoader

url = "https://firecrawl.dev"
loader = FirecrawlLoader(
    api_key="fc-YOUR_API_KEY", # Note: Replace 'YOUR_API_KEY' with your actual FireCrawl API key
    url=url,  # Target URL to crawl
    mode="crawl"  # Mode set to 'crawl' to crawl all accessible subpages
)
docs = loader.load()

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Setup the Vectorstore

Next, we will setup the vectorstore. The vectorstore is a data structure that allows us to store and query embeddings. We will use the Ollama embeddings and the FAISS vectorstore. We split the documents into chunks of 1000 characters each, with a 200 character overlap. This is to ensure that the chunks are not too small and not too big - and that it can fit into the LLM model when we query it.

from langchain_community.embeddings import OllamaEmbeddings
from langchain_text_splitters import RecursiveCharacterTextSplitter
from langchain_community.vectorstores import FAISS

text_splitter = RecursiveCharacterTextSplitter(chunk_size=1000, chunk_overlap=200)
splits = text_splitter.split_documents(docs)
vectorstore = FAISS.from_documents(documents=splits, embedding=OllamaEmbeddings())

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Retrieval and Generation

Now that our documents are loaded and the vectorstore is setup, we can, based on user’s question, do a similarity search to retrieve the most relevant documents. That way we can use these documents to be fed to the LLM model.

question = "What is firecrawl?"
docs = vectorstore.similarity_search(query=question)

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Generation

Last but not least, you can use the Groq to generate a response to a question based on the documents we have loaded.

from groq import Groq

client = Groq(
    api_key="YOUR_GROQ_API_KEY",
)

completion = client.chat.completions.create(
    model="llama3-8b-8192",
    messages=[
        {
            "role": "user",
            "content": f"You are a friendly assistant. Your job is to answer the users question based on the documentation provided below:\nDocs:\n\n{docs}\n\nQuestion: {question}"
        }
    ],
    temperature=1,
    max_tokens=1024,
    top_p=1,
    stream=False,
    stop=None,
)

print(completion.choices[0].message)

​
And Voila!

You have now built a ‘Chat with your website’ bot using Llama 3, Groq Llama 3, Langchain, and Firecrawl. You can now use this bot to answer questions based on the documentation of your website.

If you have any questions or need help, feel free to reach out to us at Firecrawl.