%pip install langfuse llama_index --upgrade

import os
 
# get keys for your project from https://cloud.langfuse.com
os.environ["LANGFUSE_PUBLIC_KEY"] = "pk-lf-***"
os.environ["LANGFUSE_SECRET_KEY"] = "sk-lf-***"
os.environ["LANGFUSE_HOST"] = "https://cloud.langfuse.com" # for EU data region
# os.environ["LANGFUSE_HOST"] = "https://us.cloud.langfuse.com" # for US data region
 
# your openai key
os.environ["OPENAI_API_KEY"] = "***"

from langfuse import Langfuse
from llama_index.core import Settings
from llama_index.core.callbacks import CallbackManager
from langfuse.llama_index import LlamaIndexCallbackHandler
 
# Initialize Langfuse client (prompt management)
langfuse = Langfuse()
 
langfuse_callback_handler = LlamaIndexCallbackHandler() # get langfuse's llamaindex callback handler
Settings.callback_manager = CallbackManager([langfuse_callback_handler]) # register callback handler in settings

langfuse.create_prompt(
    name="event-planner",
    prompt=
    "Plan an event titled {{event_name}}. The event will be about: {{event_description}}. "
    "The event will be held in {{location}} on {{date}}. "
    "Consider the following factors: audience, budget, venue, catering options, and entertainment. "
    "Provide a detailed plan including potential vendors and logistics.",
    config={
        "model":"gpt-3.5-turbo-1106",
        "temperature": 0,
    },
    is_active=True
);

# Get current production version of prompt
langfuse_prompt = langfuse.get_prompt("event-planner")
print(langfuse_prompt.prompt)

Plan an event titled {{event_name}}. The event will be about: {{event_description}}. The event will be held in {{location}} on {{date}}. Consider the following factors: audience, budget, venue, catering options, and entertainment. Provide a detailed plan including potential vendors and logistics.

from llama_index.core import PromptTemplate
 
llama_index_prompt = PromptTemplate(langfuse_prompt.get_langchain_prompt())

model = langfuse_prompt.config["model"]
temperature = str(langfuse_prompt.config["temperature"])
print(f"Prompt model configurations\nModel: {model}\nTemperature: {temperature}")

Prompt model configurations
Model: gpt-3.5-turbo-1106
Temperature: 0

from llama_index.core.chat_engine import SimpleChatEngine
 
prompt = llama_index_prompt.format(
    event_name = "Wedding",
    event_description = "The wedding of Julia and Alex, a charming couple who share a love for art and nature. This special day will celebrate their journey together with a blend of traditional and contemporary elements, reflecting their unique personalities.",
    location = "Central Park, New York City",
    date = "June 5, 2024"
)
 
chat_engine = SimpleChatEngine.from_defaults()

response = chat_engine.chat(prompt)
print(response)

Event Title: Wedding of Julia and Alex

Date: June 5, 2024
Venue: Central Park, New York City
Audience: Family and friends of Julia and Alex
Budget: $20,000

Event Plan:

1. Venue:
Central Park offers a beautiful and natural setting for the wedding ceremony. The couple will exchange vows in the Shakespeare Garden, surrounded by lush greenery and blooming flowers. The reception will take place at the Loeb Boathouse, overlooking the lake.

2. Catering:
For catering, we will hire a local catering company that specializes in farm-to-table cuisine. The menu will feature seasonal dishes made with fresh, locally sourced ingredients. Options will include a variety of appetizers, entrees, and desserts to suit all dietary preferences.

3. Entertainment:
To entertain guests during the reception, we will hire a live band that can play a mix of classic love songs and contemporary hits. Additionally, we will have a DJ to keep the party going late into the night. The couple will also have a photo booth set up for guests to capture fun memories.

4. Decor:
The decor will reflect the couple's love for art and nature. We will use a color palette of soft pastels and earth tones, with floral arrangements featuring wildflowers and greenery. The tables will be adorned with artistic centerpieces and handmade place cards.

5. Logistics:
- Transportation: Shuttle buses will be arranged to transport guests from the ceremony to the reception venue.
- Seating: A seating chart will be created to ensure that guests are seated with their desired companions.
- Timeline: A detailed timeline will be established to ensure that all events run smoothly and on schedule.
- Photography: A professional photographer will be hired to capture all the special moments of the day.

Potential Vendors:
- Catering: Farm-to-Table Catering Co.
- Entertainment: Love Notes Band, DJ Party Time
- Decor: Artistic Blooms Floral Design
- Photography: Capture the Moment Photography

Overall, the wedding of Julia and Alex will be a magical and memorable event that celebrates their love and unique personalities. The blend of traditional and contemporary elements, along with the beautiful setting of Central Park, will create a truly special day for the couple and their guests.