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5a81b95 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 | # 🕸️ NEO4J SETUP GUIDE
**Date:** 2025-11-24
**Status:** ⚠️ Neo4j Not Yet Installed
---
## 🎯 OVERVIEW
Neo4j er **ikke** installeret endnu. Vi har implementeret `Neo4jGraphAdapter`, men Neo4j serveren skal startes først.
---
## 📦 INSTALLATION OPTIONS
### Option 1: Docker (Recommended) ✅
**Quick Start:**
```bash
docker run \
--name neo4j-widgetdc \
-p 7474:7474 -p 7687:7687 \
-e NEO4J_AUTH=neo4j/password \
-e NEO4J_PLUGINS='["apoc"]' \
-d \
neo4j:5.15
```
**With Docker Compose:**
```yaml
# docker-compose.yml
version: '3.8'
services:
neo4j:
image: neo4j:5.15
ports:
- "7474:7474" # HTTP
- "7687:7687" # Bolt
environment:
NEO4J_AUTH: neo4j/password
NEO4J_PLUGINS: '["apoc"]'
volumes:
- neo4j_data:/data
- neo4j_logs:/logs
healthcheck:
test: ["CMD", "cypher-shell", "-u", "neo4j", "-p", "password", "RETURN 1"]
interval: 10s
timeout: 5s
retries: 5
volumes:
neo4j_data:
neo4j_logs:
```
**Start:**
```bash
docker-compose up -d neo4j
```
---
### Option 2: Local Installation
**Ubuntu/Debian:**
```bash
wget -O - https://debian.neo4j.com/neotechnology.gpg.key | sudo apt-key add -
echo 'deb https://debian.neo4j.com stable latest' | sudo tee -a /etc/apt/sources.list.d/neo4j.list
sudo apt-get update
sudo apt-get install neo4j
sudo systemctl start neo4j
```
**macOS:**
```bash
brew install neo4j
brew services start neo4j
```
**Windows:**
Download installer from: https://neo4j.com/download/
---
## ⚙️ CONFIGURATION
### Environment Variables
Create `.env` file in `apps/backend/`:
```bash
# Neo4j Configuration
NEO4J_URI=bolt://localhost:7687
NEO4J_USERNAME=neo4j
NEO4J_PASSWORD=password
NEO4J_DATABASE=neo4j
```
**Default Values (if not set):**
- URI: `bolt://localhost:7687`
- Username: `neo4j`
- Password: `password`
- Database: `neo4j`
---
## 🔍 VERIFICATION
### Check if Neo4j is Running
**1. Check Docker:**
```bash
docker ps | grep neo4j
```
**2. Check HTTP Port:**
```bash
curl http://localhost:7474
```
**3. Check Bolt Port:**
```bash
nc -zv localhost 7687
```
**4. Test Connection:**
```bash
# Using cypher-shell (if installed)
cypher-shell -u neo4j -p password "RETURN 1"
```
---
## 🚀 QUICK START (Docker)
```bash
# 1. Start Neo4j
docker run -d \
--name neo4j-widgetdc \
-p 7474:7474 -p 7687:7687 \
-e NEO4J_AUTH=neo4j/password \
neo4j:5.15
# 2. Wait for startup (30-60 seconds)
sleep 30
# 3. Verify connection
curl http://localhost:7474
# 4. Set environment variables
export NEO4J_URI=bolt://localhost:7687
export NEO4J_USERNAME=neo4j
export NEO4J_PASSWORD=password
# 5. Start backend
cd apps/backend
npm run dev
```
---
## 🔧 APOC PLUGIN (Optional but Recommended)
APOC (Awesome Procedures on Cypher) provides additional procedures:
```bash
# Docker with APOC
docker run -d \
--name neo4j-widgetdc \
-p 7474:7474 -p 7687:7687 \
-e NEO4J_AUTH=neo4j/password \
-e NEO4J_PLUGINS='["apoc"]' \
neo4j:5.15
```
**APOC Features:**
- Additional graph algorithms
- Data import/export
- Text processing
- Time functions
---
## 📊 CURRENT STATUS
### ✅ What We Have
- ✅ Neo4j driver installed (`neo4j-driver@6.0.1`)
- ✅ Neo4jGraphAdapter implemented
- ✅ Integration code ready
- ✅ Graceful degradation (continues without Neo4j)
### ❌ What's Missing
- ❌ Neo4j server not running
- ❌ No Docker container
- ❌ No local installation
---
## 🎯 RECOMMENDED ACTION
**Use Docker (Easiest):**
```bash
# Create docker-compose.yml in project root
cat > docker-compose.yml << 'EOF'
version: '3.8'
services:
neo4j:
image: neo4j:5.15
ports:
- "7474:7474"
- "7687:7687"
environment:
NEO4J_AUTH: neo4j/password
NEO4J_PLUGINS: '["apoc"]'
volumes:
- neo4j_data:/data
healthcheck:
test: ["CMD", "cypher-shell", "-u", "neo4j", "-p", "password", "RETURN 1"]
interval: 10s
timeout: 5s
retries: 5
volumes:
neo4j_data:
EOF
# Start Neo4j
docker-compose up -d neo4j
# Verify
sleep 30
curl http://localhost:7474
```
---
## 🔗 USEFUL LINKS
- **Neo4j Docker Hub:** https://hub.docker.com/_/neo4j
- **Neo4j Documentation:** https://neo4j.com/docs/
- **Cypher Query Language:** https://neo4j.com/docs/cypher-manual/
- **APOC Procedures:** https://neo4j.com/labs/apoc/
---
## ⚠️ NOTES
1. **Default Password:** First-time setup requires password change via browser UI
2. **Ports:** 7474 (HTTP), 7687 (Bolt)
3. **Memory:** Neo4j needs ~2GB RAM minimum
4. **Data Persistence:** Use Docker volumes for data persistence
5. **Graceful Degradation:** System works without Neo4j (uses implicit patterns)
---
**Status:** ⚠️ **Neo4j Not Installed - Setup Required**
**Next Action:** Start Neo4j using Docker or local installation
|