load .env config

Author: knoguchi

server/.env.example

@@ -1,33 +1,23 @@
 # RAG Service Configuration
-# Copy this file to .env and adjust values as needed
+# Copy to .env and adjust as needed. All values have sensible defaults.
 
-# Server Configuration
+# Server
 GRPC_PORT=9090
 HTTP_PORT=8080
-ENVIRONMENT=development
-LOG_LEVEL=debug
+LOG_LEVEL=info
 
-# PostgreSQL Configuration
+# PostgreSQL
 DATABASE_URL=postgres://rag:rag@localhost:5432/rag?sslmode=disable
 
-# Qdrant Configuration
+# Qdrant
 QDRANT_URL=http://localhost:6333
-QDRANT_GRPC_URL=localhost:6334
 
-# Ollama Configuration
+# Ollama
 OLLAMA_URL=http://localhost:11434
 OLLAMA_EMBEDDING_MODEL=nomic-embed-text
 OLLAMA_LLM_MODEL=llama3.2
 
-# Auth Configuration
-JWT_SECRET=change-this-in-production-use-a-random-32-byte-key
-JWT_EXPIRY=24h
-SESSION_SECRET=change-this-in-production-use-a-random-32-byte-key
-
-# Default Tenant Configuration
+# RAG defaults (optional)
 DEFAULT_CHUNK_METHOD=semantic
-DEFAULT_CHUNK_TARGET_SIZE=512
-DEFAULT_CHUNK_MAX_SIZE=1024
-DEFAULT_CHUNK_OVERLAP=50
-DEFAULT_TOP_K=5
-DEFAULT_MIN_SCORE=0.7
+DEFAULT_TOP_K=4
+DEFAULT_MIN_SCORE=0.35

server/go.mod

@@ -27,6 +27,7 @@ require (
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
 	github.com/jackc/puddle/v2 v2.2.2 // indirect
+	github.com/joho/godotenv v1.5.1 // indirect
 	golang.org/x/sync v0.19.0 // indirect
 	golang.org/x/sys v0.40.0 // indirect
 	golang.org/x/text v0.33.0 // indirect

server/go.sum

@@ -41,6 +41,8 @@ github.com/jackc/pgx/v5 v5.8.0 h1:TYPDoleBBme0xGSAX3/+NujXXtpZn9HBONkQC7IEZSo=
 github.com/jackc/pgx/v5 v5.8.0/go.mod h1:QVeDInX2m9VyzvNeiCJVjCkNFqzsNb43204HshNSZKw=
 github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
 github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/ledongthuc/pdf v0.0.0-20220302134840-0c2507a12d80 h1:6Yzfa6GP0rIo/kULo2bwGEkFvCePZ3qHDDTC3/J9Swo=
 github.com/ledongthuc/pdf v0.0.0-20220302134840-0c2507a12d80/go.mod h1:imJHygn/1yfhB7XSJJKlFZKl/J+dCPAknuiaGOshXAs=
 github.com/orisano/pixelmatch v0.0.0-20220722002657-fb0b55479cde h1:x0TT0RDC7UhAVbbWWBzr41ElhJx5tXPWkIHA2HWPRuw=

server/internal/config/config.go

@@ -4,6 +4,7 @@ import (
 	"time"
 
 	"github.com/caarlos0/env/v10"
+	"github.com/joho/godotenv"
 )
 
 // Config holds all configuration for the RAG service
@@ -40,8 +41,11 @@ type Config struct {
 	DefaultMinScore        float32 `env:"DEFAULT_MIN_SCORE" envDefault:"0.35"`
 }
 
-// Load loads configuration from environment variables
+// Load loads configuration from .env file (if present) and environment variables
 func Load() (*Config, error) {
+	// Load .env file if it exists (ignore error if not found)
+	_ = godotenv.Load()
+
 	cfg := &Config{}
 	if err := env.Parse(cfg); err != nil {
 		return nil, err