DATABASE!

.gitignore

@@ -1,2 +1,3 @@
 .idea
-out
+out
+.env

go.mod

@@ -1,3 +1,9 @@
 module github.com/rdarius/go-http-server
 
 go 1.23.6
+
+require (
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/joho/godotenv v1.5.1 // indirect
+	github.com/lib/pq v1.10.9 // indirect
+)

go.sum

@@ -0,0 +1,6 @@
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
+github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
+github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=

internal/database/CreateUser.sql.go

@@ -0,0 +1,28 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.28.0
+// source: CreateUser.sql
+
+package database
+
+import (
+	"context"
+)
+
+const createUser = `-- name: CreateUser :one
+INSERT INTO users (id, created_at, updated_at, email)
+VALUES (gen_random_uuid(), NOW(), NOW(), $1)
+RETURNING id, created_at, updated_at, email
+`
+
+func (q *Queries) CreateUser(ctx context.Context, email string) (User, error) {
+	row := q.db.QueryRowContext(ctx, createUser, email)
+	var i User
+	err := row.Scan(
+		&i.ID,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+		&i.Email,
+	)
+	return i, err
+}

internal/database/db.go

@@ -0,0 +1,31 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.28.0
+
+package database
+
+import (
+	"context"
+	"database/sql"
+)
+
+type DBTX interface {
+	ExecContext(context.Context, string, ...interface{}) (sql.Result, error)
+	PrepareContext(context.Context, string) (*sql.Stmt, error)
+	QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error)
+	QueryRowContext(context.Context, string, ...interface{}) *sql.Row
+}
+
+func New(db DBTX) *Queries {
+	return &Queries{db: db}
+}
+
+type Queries struct {
+	db DBTX
+}
+
+func (q *Queries) WithTx(tx *sql.Tx) *Queries {
+	return &Queries{
+		db: tx,
+	}
+}

internal/database/models.go

@@ -0,0 +1,18 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.28.0
+
+package database
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type User struct {
+	ID        uuid.UUID
+	CreatedAt time.Time
+	UpdatedAt time.Time
+	Email     string
+}

main.go

@@ -1,15 +1,22 @@
 package main
 
 import (
+	"database/sql"
 	"encoding/json"
 	"fmt"
+	"github.com/joho/godotenv"
+	_ "github.com/lib/pq"
+	"github.com/rdarius/go-http-server/internal/database"
+	"log"
 	"net/http"
+	"os"
 	"regexp"
 	"sync/atomic"
 )
 
 type apiConfig struct {
 	fileserverHits atomic.Int32
+	db             database.Queries
 }
 
 func (cfg *apiConfig) middlewareMetricsInc(next http.Handler) http.Handler {
@@ -108,9 +115,23 @@ func validateChirpHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func main() {
+	err := godotenv.Load()
+	if err != nil {
+		log.Fatal("Error loading .env file")
+	}
+
+	dbURL := os.Getenv("DB_URL")
+
+	db, err := sql.Open("postgres", dbURL)
+	if err != nil {
+		log.Fatal(err)
+	}
 
 	apiCfg := &apiConfig{}
 
+	dbQueries := database.New(db)
+	apiCfg.db = *dbQueries
+
 	mux := http.NewServeMux()
 
 	mux.HandleFunc("GET /api/healthz", readinessHandler)

sql/queries/CreateUser.sql

@@ -0,0 +1,4 @@
+-- name: CreateUser :one
+INSERT INTO users (id, created_at, updated_at, email)
+VALUES (gen_random_uuid(), NOW(), NOW(), $1)
+RETURNING *;

sql/schema/001_users.sql

@@ -0,0 +1,10 @@
+-- +goose Up
+CREATE TABLE users(
+    id UUID PRIMARY KEY,
+    created_at TIMESTAMP not null DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP not null DEFAULT CURRENT_TIMESTAMP,
+    email TEXT not null
+);
+
+-- +goose Down
+DROP TABLE users;

sqlc.yaml

@@ -0,0 +1,8 @@
+version: "2"
+sql:
+  - schema: "sql/schema"
+    queries: "sql/queries"
+    engine: "postgresql"
+    gen:
+      go:
+        out: "internal/database"