compsci_ai_herk/build n8n ai agents - 8 hr course/_subsections/lesson-03.org
2025-07-20 23:27:23 +03:00

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Lesson 03 | data types

Notes

set field

  • can also name the fields and data type for each field

data types

data type symbol example
String A "blah"
Number # 50
Boolean true
Array [1, "one", "three"]
Object 3d box {"blah": 33}

3 AI workflows

1. RAG pipeline & chatbot

tools
pinecone
vector database
google drive
data storage
google docs
open router
lets us connect to ai models like openai's or anthropics

2. Customer support

purpose
  • build off prev workflow with pinecone db
  • respond to customer support related emails
tools
  • pinecone
  • gmail
  • n8n agent
  • open router

3. LinkedIn Content Creation

tools
tavily
search the web
google sheets
store content ideas, and write content ideas to it

Workflow #1 - Rag Pipeline and Chatbot

RAG

stands for
retrieval, augmented, generation
?
looks inside database for the answer
Vector Database
  • multidimensional graph of points
  • vector is placed based on meaning of vector

    • ie, wolf and dog will be close
    • banana, apple will be close
how it works
  • we have a document
  • break it into chunks
  • run it through an 'embeddings model'

    • this puts the chunks into a vector model
Query
  • run the query through the embeddings model
  • see where it lands in vectors, grabs back the nearest 4 or 5 vectors and returns it to us

process

  • our trigger is any changes in folder on google drive
get Google Drive Credentials
create OAuth credentials