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Agentic AI

Tutorials

Top AI Agents Platforms

No code 與 Low code AI 應用開發平台

Self-Hosted
  1. n8n
  2. CrewAI
  3. Dify
  4. LangFlow - 例如基於 RAG 的 AI 整合應用
Cloud-Based

n8n

Community Nodes

PDF to Image

n8n-nodes-pdfconvert
n8n Installation

On a laptop (small level)

  • YOUR_TIMEZONE: Asia/Taipei or America/Chicago or America/New_York 
docker volume create n8n_data

docker run -it --rm \
 --name n8n \
 -p 5678:5678 \
 -e GENERIC_TIMEZONE="<YOUR_TIMEZONE>" \
 -e TZ="<YOUR_TIMEZONE>" \
 -e N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=true \
 -e N8N_RUNNERS_ENABLED=true \
 -v n8n_data:/home/node/.n8n \
 docker.n8n.io/n8nio/n8n
Quick Start Examples

Basic Data Access

{{ $json.fieldName }}                    // Get field from current item
{{ $('Node Name').item.json.field }}     // Data from specific node
{{ $json.items?.[0] }}                   // Safe array access

Date Functions

{{ $now.format('YYYY-MM-DD') }}          // 2024-01-15
{{ $now.plus({days: 7}) }}               // 7 days from now
{{ $now.diff('2024-01-01', 'days') }}    // Days between dates

String Manipulation

{{ $json.name.toLowerCase() }}           // convert to lowercase
{{ $json.email.split('@')[0] }}          // Username from email
{{ $json.text.slice(0, 50) }}            // First 50 characters

Array Processing

{{ $json.items.length }}                 // Count array items
{{ $json.items.filter(item => item.active) }}   // Filter items
{{ $json.items.map(item => item.name) }}        // Extract field from all items
跨 Nodes 傳 binary 內容

新增 Code node

return{
  json: {},
  binary: $('On Form submission').item.binary
}

No Code Tools

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