Add infrastructure

services/entry/pkg/db/postgres/userrepo.go

@@ -0,0 +1,28 @@
+package postgres
+
+import (
+	"context"
+	"errors"
+)
+
+type UserDto struct {
+}
+
+type InMemoryUserRepository struct {
+	users map[int]*UserDto
+}
+
+func NewInMemoryUserRepository() *InMemoryUserRepository {
+	return &InMemoryUserRepository{
+		users: make(map[int]*UserDto),
+	}
+}
+
+func (ur *InMemoryUserRepository) Get(ctx context.Context, id int) (*UserDto, error) {
+	user := ur.users[id]
+	if user == nil {
+		return nil, errors.New("user is not in database")
+	}
+
+	return user, nil
+}