langgraph

learning langgraph 0->hero

reference repo:https://github.com/iamvaibhavmehra/LangGraph-Course-freeCodeCamp/tree/main

Needed data structure:Prerequisites

1.Dictionary

- normal python dictionary isnt strict to types of key-value pair - solution is typed dictionary - quite important for defining **States**

2.Union

• tells the type of data can be any of defined.eg below

3. Optional

• 

4.Any

5.Lamda

Step 1:Elements of Langgraph

- each nodes are connected using edges.

Step 2:Different tpes of messages

Step 3: Creating Hello World Graph

We'll build below

Install langggraph

pip install -U langgraph

see app.py

Step 4:level 2-Creating grpahs with multiple inputs🔥

• see level2.py

Optional(Adding streamming to output)

see level2_streamming.py

streamming.mp4

Level 3:

#### see sequencial-multinodes.py

(completed Agent 2,need to practice Agent 1& 2)

Agent 1:created simple chatbot

Agent 2:created conversational history in temp file

ReAct Agent(Reasoning & Acting Agent)