compsci_ai_herk/build n8n ai agents - 8 hr course/_subsections/lesson-02.org

Lesson 02 | n8n foundations (workflows, variables, etc)

• Links
  • timestamps
• Notes
  • templates
  • credentials
  • workflow
    • node structure
    • adding new credentials
      • open ai
      • add the api key
      • change the Model used
    • test it
    • output panel has 3 options
    • connect the output with another tool
      • get the set Edit field
      • modify the node
  • trigger types
    • using chat trigger
  • templates
    • n8n company
    • set up telegram account

Links

• TOC | Build n8n ai agents 8 hr course
• Course Video

timestamps

• 0:12:05 n8n Foundations (workflows, variables, JSON)
• https://youtu.be/Ey18PDiaAYI?si=5IUu_5Sd-tfTzmMV&t=1276 current

Notes

• n8n lets you automate anything

templates

• n8n
• nate herk

credentials

• in order to use any api you usually need some kind of credentials

workflow

node structure

• every node has three main parts

  • input

  • configuration

    • credentials
  • output

adding new credentials

open ai

• go to Dashboard
• select API keys

• key: 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

add the api key

• in n8n
• go to the tool (message a model)
• go to "credential to connect with"
• select "create new credential"
• enter the API key
• in the upper left hand corner where it says "Open AI" you can rename that to whatever you want, ie the api key name

change the Model used

• go to 'from list' in the Model section
• pick GPT-4.1-MINI

test it

• add something to prompt tell me a joke
• click execute and see the results

output panel has 3 options

• schema
• table
• json

connect the output with another tool

get the set Edit field

• click on the + button
• in the search bar, enter 'set' and pick the Edit Fields node

modify the node

• click 'Fields to Set'
• type in a name for the variable
• from the Input panel drag the paprt you want to 'value'

trigger types

• manual trigger
• chat trigger

using chat trigger

• go to 'message a model' node
• delete whatever is in the prompt field
• drag chatInput to the prompt field

templates

n8n company

• http://n8n.com
• go to Product->Templates
• choose tiktok clone template

set up telegram account

API Key

7944661605:AAFko2fVauPj_iNALgNf-WDr9wUrVEGDTzs

bot username

on_tutorial_nate_clone_bot

bot name

n8n-herk-tutorial-tiktok-clone