Fixed indexing on m:n table, as well as added seeding function

services/entry/main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"context"
+	"fmt"
 	"github.com/dgraph-io/ristretto"
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/client"
@@ -10,10 +11,13 @@ import (
 	"github.com/eko/gocache/store"
 	"github.com/gin-gonic/gin"
 	"github.com/go-co-op/gocron"
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v4/pgxpool"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
 	"io/ioutil"
+	"log"
 	"net/http"
 	"os"
 	"serverctl/pkg/application/projects"
@@ -23,6 +27,8 @@ import (
 	"time"
 )
 
+import _ "net/http/pprof"
+
 func setupLogger() *zap.Logger {
 	highPriority := zap.LevelEnablerFunc(func(lvl zapcore.Level) bool {
 		return lvl >= zapcore.ErrorLevel
@@ -269,5 +275,57 @@ func main() {
 	projectsRepository := postgres.NewProjectsRepository(database)
 	projectsService := projects.NewService(logger, projectsRepository, cacheM)
 
+	setupProfiler()
+	addSeedData(database, usersRepository, projectsRepository)
 	setupApi(logger, cacheM, usersService, projectsService)
 }
+
+func setupProfiler() {
+	go func() {
+		log.Println(http.ListenAndServe(":6060", nil))
+	}()
+}
+
+func addSeedData(database *db.Client, ur users.Repository, pr projects.Repository) {
+	conn := database.GetConn(context.Background())
+	defer conn.Release()
+
+	var numRows int
+	err := conn.QueryRow(context.Background(), "select count(id) from sctl_user").Scan(&numRows)
+	if err != nil {
+		panic(err)
+	}
+
+	if numRows == 0 {
+		addTestData(conn, ur, pr)
+	}
+}
+
+func addTestData(conn *pgxpool.Conn, ur users.Repository, pr projects.Repository) {
+	ctx := context.Background()
+	for jobs := 0; jobs < 100; jobs++ {
+		go func() {
+			for i := 0; i < 1_000; i++ {
+				var (
+					user   *users.CreateUser
+					err    error
+					userId int
+				)
+				user, err = users.NewCreateUser(fmt.Sprintf("%s@test.com", uuid.New().String()), "password", users.NewPlainTextPasswordHasher())
+				if err != nil {
+					panic(err)
+				}
+
+				userId, err = ur.Create(ctx, user)
+				if err != nil {
+					panic(err)
+				}
+
+				_, err = pr.Create(ctx, projects.NewCreateProject(uuid.New().String()[:20], userId))
+				if err != nil {
+					panic(err)
+				}
+			}
+		}()
+	}
+}