Merge pull request #2 from moevm/backend-init

backend and frontend init

hello_world/backend.Dockerfile

@@ -0,0 +1,11 @@
+FROM golang:1.22.4
+WORKDIR ./backend
+
+COPY ./backend/go.mod ./backend/go.sum .
+RUN go mod download
+COPY ./backend/ .
+
+RUN pwd
+RUN ls -l
+RUN CGO_ENABLED=0 GOOS=linux go build -o /backend ./cmd/main
+CMD ["/backend"]

hello_world/backend/cmd/main/main.go

@@ -0,0 +1,46 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"vvnbd/internal/db"
+	testhandlers "vvnbd/internal/handlers/test_handlers"
+	testinfluxrepo "vvnbd/internal/repositories/test_influx_repo"
+	testmongorepo "vvnbd/internal/repositories/test_mongo_repo"
+	testservice "vvnbd/internal/service/test_service"
+
+	"github.com/labstack/echo"
+	"github.com/labstack/echo/middleware"
+)
+
+func main() {
+	e := echo.New()
+	ctx := context.Background()
+
+	e.Use(middleware.Logger())
+
+	e.Use(middleware.CORSWithConfig(middleware.CORSConfig{
+		AllowOrigins: []string{"*"},
+	}))
+
+	e.Logger.Warn("hello")
+	mongoClient, err := db.NewMongoClient(ctx)
+	if err != nil {
+		e.Logger.Fatal(fmt.Sprintf("unble to create mong client Err: %s", err))
+	}
+
+	influxClient := db.NewInfluxClient(ctx)
+
+	mongoRepo := testmongorepo.NewRepository(ctx, mongoClient)
+
+	influxRepo := testinfluxrepo.NewRepository(ctx, influxClient)
+
+	service := testservice.NewService(ctx, mongoRepo, influxRepo)
+
+	handler := testhandlers.NewHandler(ctx, service)
+
+	e.GET("/get", handler.GetHelloWorld)
+	e.GET("/set", handler.SetHelloWorld)
+
+	e.Logger.Fatal(e.Start(":8080"))
+}

hello_world/backend/go.mod

@@ -0,0 +1,34 @@
+module vvnbd
+
+go 1.22.4
+
+require (
+	github.com/apapsch/go-jsonmerge/v2 v2.0.0 // indirect
+	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
+	github.com/google/uuid v1.3.1 // indirect
+	github.com/influxdata/line-protocol v0.0.0-20200327222509-2487e7298839 // indirect
+	github.com/oapi-codegen/runtime v1.0.0 // indirect
+)
+
+require (
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/influxdata/influxdb-client-go/v2 v2.14.0
+	github.com/klauspost/compress v1.16.7 // indirect
+	github.com/labstack/echo v3.3.10+incompatible
+	github.com/labstack/gommon v0.4.2 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/montanaflynn/stats v0.7.1 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasttemplate v1.2.2 // indirect
+	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
+	github.com/xdg-go/scram v1.1.2 // indirect
+	github.com/xdg-go/stringprep v1.0.4 // indirect
+	github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 // indirect
+	go.mongodb.org/mongo-driver v1.17.0
+	golang.org/x/crypto v0.26.0 // indirect
+	golang.org/x/net v0.24.0
+	golang.org/x/sync v0.8.0 // indirect
+	golang.org/x/sys v0.23.0 // indirect
+	golang.org/x/text v0.17.0 // indirect
+)

hello_world/backend/go.sum

@@ -0,0 +1,94 @@
+github.com/RaveNoX/go-jsoncommentstrip v1.0.0/go.mod h1:78ihd09MekBnJnxpICcwzCMzGrKSKYe4AqU6PDYYpjk=
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hello_world/backend/internal/db/influx.go

@@ -0,0 +1,15 @@
+package db
+
+import (
+	"context"
+
+	influxdb2 "github.com/influxdata/influxdb-client-go/v2"
+)
+
+const (
+	token = "test_token"
+)
+
+func NewInfluxClient(ctx context.Context) influxdb2.Client {
+	return influxdb2.NewClient("http://influxdb2:8086", token)
+}

hello_world/backend/internal/db/mongo.go

@@ -0,0 +1,32 @@
+package db
+
+import (
+	"context"
+	"fmt"
+
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+)
+
+const (
+	uri = "mongodb://root:example@mongo:27017/"
+)
+
+func NewMongoClient(ctx context.Context) (*mongo.Client, error) {
+	serverAPI := options.ServerAPI(options.ServerAPIVersion1)
+	opts := options.Client().ApplyURI(uri).SetServerAPIOptions(serverAPI)
+
+	client, err := mongo.Connect(ctx, opts)
+	if err != nil {
+		return nil, fmt.Errorf("unable to connect to mongo Err: %w", err)
+	}
+
+	var result bson.M
+	err = client.Database("admin").RunCommand(ctx, bson.D{{Key: "ping", Value: 1}}).Decode(&result)
+	if err != nil {
+		return nil, fmt.Errorf("mongo is unreachible Err: %w", err)
+	}
+
+	return client, nil
+}

hello_world/backend/internal/domain/db/not_found.go

@@ -0,0 +1,9 @@
+package db
+
+import "fmt"
+
+type NotFoundError struct{}
+
+func (e *NotFoundError) Error() string {
+	return fmt.Sprintf("entity not found in db")
+}

hello_world/backend/internal/domain/hello_world.go

@@ -0,0 +1,8 @@
+package domain
+
+type HelloWorld struct {
+	Username string
+	FullName string
+	Login    string
+	Icon     string
+}

hello_world/backend/internal/dto/test_dto/hello_world.go

@@ -0,0 +1,9 @@
+package testdto
+
+type HelloWorldFull struct {
+	Username string `json:"username"`
+	FullName string `json:"full_name"`
+	Login    string `json:"login"`
+	Icon     string `json:"icon"`
+	Point    string `json:"point"`
+}

hello_world/backend/internal/handlers/test_handlers/get_hello_world.go

@@ -0,0 +1,26 @@
+package testhandlers
+
+import (
+	"net/http"
+	testdto "vvnbd/internal/dto/test_dto"
+
+	"github.com/labstack/echo"
+)
+
+func (h *Handler) GetHelloWorld(c echo.Context) error {
+	res, point, isFound := h.service.GetHelloWorld(c.Request().Context())
+
+	resp := testdto.HelloWorldFull{
+		Username: res.Username,
+		FullName: res.FullName,
+		Login:    res.Login,
+		Icon:     res.Icon,
+		Point:    point,
+	}
+
+	if !isFound {
+		return c.NoContent(http.StatusNotFound)
+	}
+
+	return c.JSON(http.StatusOK, resp)
+}

hello_world/backend/internal/handlers/test_handlers/handler.go

@@ -0,0 +1,21 @@
+package testhandlers
+
+import (
+	"context"
+	"vvnbd/internal/domain"
+)
+
+type service interface {
+	GetHelloWorld(ctx context.Context) (result domain.HelloWorld, point string, isFound bool)
+	SetHelloWorld(ctx context.Context) error
+}
+
+type Handler struct {
+	service service
+}
+
+func NewHandler(ctx context.Context, service service) *Handler {
+	return &Handler{
+		service: service,
+	}
+}

hello_world/backend/internal/handlers/test_handlers/set_hello_world.go

@@ -0,0 +1,17 @@
+package testhandlers
+
+import (
+	"net/http"
+
+	"github.com/labstack/echo"
+)
+
+func (h *Handler) SetHelloWorld(c echo.Context) error {
+	err := h.service.SetHelloWorld(c.Request().Context())
+	if err != nil {
+		c.Logger().Error(err)
+		return c.NoContent(http.StatusInternalServerError)
+	}
+
+	return c.NoContent(http.StatusOK)
+}

hello_world/backend/internal/repositories/test_influx_repo/get_point.go

@@ -0,0 +1,31 @@
+package testinfluxrepo
+
+import (
+	"fmt"
+	"vvnbd/internal/domain/db"
+
+	"golang.org/x/net/context"
+)
+
+var (
+	getQuery = fmt.Sprintf(`from(bucket:"%s")|> range(start: -1h) |> filter(fn: (r) => r._measurement == "stat")`, bucket)
+)
+
+func (r *Repository) GetPoint(ctx context.Context) (string, error) {
+	queryAPI := r.client.QueryAPI(org)
+
+	result, err := queryAPI.Query(context.Background(), getQuery)
+	if err != nil {
+		return "", fmt.Errorf("unable to execute get point query Err: %w", err)
+	}
+
+	if result.Err() != nil {
+		return "", fmt.Errorf("cannot get point due query error Err: %w", err)
+	}
+
+	if result.Next() {
+		return fmt.Sprintf("row: %s\n", result.Record().String()), nil
+	}
+
+	return "", &db.NotFoundError{}
+}

hello_world/backend/internal/repositories/test_influx_repo/repository.go

@@ -0,0 +1,16 @@
+package testinfluxrepo
+
+import (
+	influxdb2 "github.com/influxdata/influxdb-client-go/v2"
+	"golang.org/x/net/context"
+)
+
+type Repository struct {
+	client influxdb2.Client
+}
+
+func NewRepository(ctx context.Context, client influxdb2.Client) *Repository {
+	return &Repository{
+		client: client,
+	}
+}