Chat with the Local Knowledge Base

This guide walks through authentication, session creation, local file upload, ingestion, and prompting.

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Prerequisites

• Credentials for a hosted SmartChat RAG API with a CHAT_USER role
• A pre-configured SmartChat RAG API server
• A PDF file to upload

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1. Authenticate

import requests
import json

base_url = "<BASE_URL>"

payload = json.dumps({"username": "<USERNAME>", "password": "<PASSWORD>"})
headers = {"Content-Type": "application/json"}

response = requests.post(f"{base_url}/api/v1/auth/user", headers=headers, data=payload)
headers["Authorization"] = f"Bearer {response.json()['access_token']}"

2. Get Default Chat Configuration

response = requests.get(f"{base_url}/config-manager/api/v1/user/configs", headers=headers)

configs = response.json()
default_config = [c for c in configs if c["userGroupId"] == "default"][0]

default_local_config_id = default_config["localKbConfigs"][0]["id"]
allowed_llms = default_config["localKbConfigs"][0]["allowed_llms"]

3. Upload Files

import time

file_paths = ["PATH_TO_FILE_1", "PATH_TO_FILE_2"]
params = {"kb": "local"}
files = [("files", open(fp, "rb")) for fp in file_paths]

response = requests.post(f"{base_url}/file-manager/api/v1/files/", headers=headers, params=params, files=files)

pending_files = response.json()
pending_file_ids = [f["fileId"] for f in pending_files]

# Poll until uploaded
while True:
    params = {"kb": "local", "fileIds": pending_file_ids}
    response = requests.get(f"{base_url}/file-manager/api/v1/files/", headers=headers, params=params)
    files = response.json()

    if all(f["status"] in ["uploaded", "duplicated"] for f in files):
        break
    if all(f["status"] in ["error", "file_too_large", "file_type_not_supported"] for f in files):
        raise Exception("Couldn't upload files")
    time.sleep(2)

uploaded_files = files

4. Ingest Files

for uploaded_file in uploaded_files:
    metadata = {
        "file_id": uploaded_file["fileId"],
        "user_id": uploaded_file["userId"],
        "file_name": uploaded_file["fileName"],
        "file_uri": uploaded_file["fileUri"],
    }
    body = {
        "filePath": uploaded_file["fileUri"],
        "role": "user",
        "metadata": metadata,
    }

    requests.post(f"{base_url}/ingest-master/api/v1/task", headers=headers, json=body)

    # Poll until ingested
    while True:
        params = {"file_path": uploaded_file["fileUri"], "role": "user"}
        response = requests.post(f"{base_url}/ingest-master/api/v1/tasks/file", headers=headers, params=params)
        status = response.json()[-1]["status"]

        if status == "ingested":
            break
        if status == "ingestion_failed":
            raise Exception("Couldn't ingest file")

ingested_files = uploaded_files

5. Create a Chat Session

body = {
    "title": "Testing the SmartChat RAG API",
    "config": {
        "localConfigId": default_local_config_id,
        "globalContext": False,
        "activeFiles": [f["fileId"] for f in ingested_files],
        "chatModel": allowed_llms[0]["name"],
    },
}
response = requests.post(f"{base_url}/chat-session-manager/api/v1/sessions/", headers=headers, json=body)
session_id = response.json()["sessionId"]

6. Chat

body = {
    "sessionId": session_id,
    "userPrompt": "Can you summarize the context to me?",
}
response = requests.post(f"{base_url}/query-pipelines/api/v1/chat", headers=headers, json=body)
print(response.json())