first commit

main/main.go

@@ -0,0 +1,116 @@
+package main
+
+import (
+	"github.com/labstack/echo/v4"
+	echoSwagger "github.com/swaggo/echo-swagger"
+	"net/http"
+	"strconv"
+	"time"
+	"zadanie7API/main/models"
+	"zadanie7API/main/repository"
+)
+
+const connectionURL = "postgres://tgbot:pass@localhost:5432/vyatsu"
+
+//INPUT DATA IN FORM-DATA FORMAT
+
+func main() {
+	e := echo.New()
+	e.GET("/request/:id", getRequest)
+	e.GET("/swagger/*", echoSwagger.WrapHandler)
+	e.PUT("/request", createRequest)
+	e.DELETE("/request/:id", deleteRequest)
+	e.POST("/request/:id", updateRequest)
+	// Start server
+	e.Logger.Fatal(e.Start(":8080"))
+
+}
+func getRequest(e echo.Context) error {
+	db, err := repository.New(connectionURL)
+	id, err := strconv.Atoi(e.Param("id"))
+	request, err := db.GetRequest(id)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusInternalServerError, err.Error())
+	}
+	return e.JSON(http.StatusOK, request)
+}
+
+const layout = "2006-01-02"
+
+func stringToTime(dateString string) (time.Time, error) {
+	t, err := time.Parse(layout, dateString)
+	if err != nil {
+		return time.Time{}, err
+	}
+	return t, nil
+}
+
+func createRequest(e echo.Context) error {
+	db, err := repository.New(connectionURL)
+
+	var Request models.Request
+
+	name := e.FormValue("Name")
+	description := e.FormValue("Description")
+	Status := e.FormValue("Status")
+	CreationDate, err := stringToTime(e.FormValue("CreationDate"))
+	LastUpdateDate, err := stringToTime(e.FormValue("LastUpdateDate"))
+
+	Request = models.Request{
+		Name:           name,
+		Description:    description,
+		Status:         Status,
+		CreationDate:   CreationDate,
+		LastUpdateDate: LastUpdateDate,
+	}
+	db.CreateRequest(Request)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusInternalServerError, err.Error())
+	}
+	return e.JSON(http.StatusOK, Request)
+}
+
+func deleteRequest(c echo.Context) error {
+	db, err := repository.New(connectionURL)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusInternalServerError, "Ошибка подключения к базе данных")
+	}
+
+	id, err := strconv.Atoi(c.Param("id"))
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, "Неверный формат ID")
+	}
+
+	err = db.DeleteRequest(id)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusInternalServerError, err.Error())
+	}
+
+	return c.NoContent(http.StatusOK)
+}
+
+func updateRequest(e echo.Context) error {
+	db, err := repository.New(connectionURL)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusInternalServerError, err.Error())
+	}
+
+	id, err := strconv.Atoi(e.FormValue("ID"))
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, "Invalid ID")
+	}
+
+	var request models.Request
+	request.ID = id
+	request.Name = e.FormValue("Name")
+	request.Description = e.FormValue("Description")
+	request.Status = e.FormValue("Status")
+	request.CreationDate, err = stringToTime(e.FormValue("CreationDate"))
+	request.LastUpdateDate, err = stringToTime(e.FormValue("LastUpdateDate"))
+
+	err = db.UpdateRequest(request)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusInternalServerError, err.Error())
+	}
+	return e.JSON(http.StatusOK, request)
+}

main/models/models.go

@@ -0,0 +1,12 @@
+package models
+
+import "time"
+
+type Request struct {
+	ID             int
+	Name           string
+	Description    string
+	Status         string
+	CreationDate   time.Time
+	LastUpdateDate time.Time
+}

main/repository/Requests.go

@@ -0,0 +1,41 @@
+package repository
+
+import (
+	"context"
+	"zadanie7API/main/models"
+)
+
+func (repo *PGrepo) GetRequest(id int) (models.Request, error) {
+	rows, err := repo.pool.Query(context.Background(), "select * from request WHERE ID = $1", id)
+	defer rows.Close()
+	request := models.Request{}
+	rows.Next()
+	err = rows.Scan(&request.ID, &request.Name, &request.Description, &request.Status, &request.CreationDate,
+		&request.LastUpdateDate)
+
+	if err != nil {
+		panic(err)
+	}
+	return request, nil
+}
+func (repo *PGrepo) CreateRequest(request models.Request) {
+	_, err := repo.pool.Query(context.Background(), "INSERT INTO request (name, description, status, creationdate, lastupdatedate) values ($1, $2, $3, $4, $5)",
+		request.Name, request.Description, request.Status, request.CreationDate, request.LastUpdateDate)
+	if err != nil {
+		panic(err)
+	}
+}
+
+func (repo *PGrepo) DeleteRequest(id int) error {
+	_, err := repo.pool.Exec(context.Background(), "DELETE FROM request WHERE id = $1", id)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (repo *PGrepo) UpdateRequest(request models.Request) error {
+	_, err := repo.pool.Exec(context.Background(), "UPDATE request SET name = $2, description = $3, status = $4, creationdate = $5, lastupdatedate = $6 WHERE id = $1",
+		request.ID, request.Name, request.Description, request.Status, request.CreationDate, request.LastUpdateDate)
+	return err
+}

main/repository/pgsql.go

@@ -0,0 +1,20 @@
+package repository
+
+import (
+	"context"
+	"github.com/jackc/pgx/v5/pgxpool"
+	"sync"
+)
+
+type PGrepo struct {
+	mu   sync.Mutex
+	pool *pgxpool.Pool
+}
+
+func New(connStr string) (*PGrepo, error) {
+	pool, err := pgxpool.New(context.Background(), connStr)
+	if err != nil {
+		panic(err)
+	}
+	return &PGrepo{mu: sync.Mutex{}, pool: pool}, nil
+}