✨ Database allocator

.idea/inspectionProfiles/Project_Default.xml

@@ -0,0 +1,10 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="GoDfaErrorMayBeNotNil" enabled="true" level="WARNING" enabled_by_default="true">
+      <methods>
+        <method importPath="git.solsynth.dev/hypernet/nexus/pkg/proto" receiver="DatabaseControllerClient" name="AllocDatabase" />
+      </methods>
+    </inspection_tool>
+  </profile>
+</component>

.idea/sqldialects.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="SqlDialectMappings">
+    <file url="file://$PROJECT_DIR$/pkg/internal/database/allocator.go" dialect="GenericSQL" />
+  </component>
+</project>

go.mod

@@ -77,6 +77,7 @@ require (
 	github.com/kennygrant/sanitize v1.2.4 // indirect
 	github.com/klauspost/compress v1.17.8 // indirect
 	github.com/leodido/go-urn v1.2.4 // indirect
+	github.com/lib/pq v1.10.9 // indirect
 	github.com/lukesampson/figlet v0.0.0-20190211215653-8a3ef4a6ac42 // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect

go.sum

@@ -233,6 +233,8 @@ github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/leodido/go-urn v1.2.4 h1:XlAE/cm/ms7TE/VMVoduSpNBoyc2dOxHs5MZSwAN63Q=
 github.com/leodido/go-urn v1.2.4/go.mod h1:7ZrI8mTSeBSHl/UaRyKQW1qZeMgak41ANeCNaVckg+4=
+github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
+github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
 github.com/lukesampson/figlet v0.0.0-20190211215653-8a3ef4a6ac42 h1:UtyD+eBVdLYSj5/pjfSR6mtnzMgIiOVcFT024G2l4CY=
 github.com/lukesampson/figlet v0.0.0-20190211215653-8a3ef4a6ac42/go.mod h1:/peI0OaxVYh7fzA72CD7rUsyGVdF7sCiFw7GcYqOcCw=
 github.com/magiconair/properties v1.8.7 h1:IeQXZAiQcpL9mgcAe1Nu6cX9LLw6ExEHKjN0VQdvPDY=

pkg/http/api/command.go

@@ -52,9 +52,6 @@ func invokeCommand(c *fiber.Ctx) error {
 	if err != nil {
 		return fiber.NewError(fiber.StatusInternalServerError, err.Error())
 	} else {
-		if !out.IsDelivered {
-			log.Debug().Str("id", command).Str("method", method).Msg("Invoking command from HTTP Gateway... failed, delivery not confirmed")
-		}
 		c.Set(fiber.HeaderContentType, out.ContentType)
 		return c.Status(int(out.Status)).Send(out.Payload)
 	}

pkg/http/api/index.go

@@ -1,6 +1,7 @@
 package api
 
 import (
+	"git.solsynth.dev/hypernet/nexus/pkg/http/ws"
 	"github.com/gofiber/contrib/websocket"
 	"github.com/gofiber/fiber/v2"
 )
@@ -22,7 +23,7 @@ func MapAPIs(app *fiber.App) {
 			return err
 		}*/
 		return c.Next()
-	}).Get("/ws", websocket.New(listenWebsocket))
+	}).Get("/ws", websocket.New(ws.Listen))
 
 	app.All("/cgi/:command", invokeCommand)
 }

pkg/http/ws/connections.go

@@ -1,4 +1,4 @@
-package services
+package ws
 
 import (
 	"math/rand"

pkg/http/ws/ws.go

@@ -1,8 +1,7 @@
-package api
+package ws
 
 import (
 	"git.solsynth.dev/hypernet/nexus/pkg/internal/models"
-	"git.solsynth.dev/hypernet/nexus/pkg/internal/services"
 	"git.solsynth.dev/hypernet/nexus/pkg/nex"
 	"github.com/gofiber/contrib/websocket"
 	jsoniter "github.com/json-iterator/go"
@@ -10,11 +9,11 @@ import (
 	"github.com/spf13/viper"
 )
 
-func listenWebsocket(c *websocket.Conn) {
+func Listen(c *websocket.Conn) {
 	user := c.Locals("user").(models.Account)
 
 	// Push connection
-	clientId := services.ClientRegister(user, c)
+	clientId := ClientRegister(user, c)
 	log.Debug().
 		Uint("user", user.ID).
 		Uint64("clientId", clientId).
@@ -78,7 +77,7 @@ func listenWebsocket(c *websocket.Conn) {
 	}
 
 	// Pop connection
-	services.ClientUnregister(user, clientId)
+	ClientUnregister(user, clientId)
 	log.Debug().
 		Uint("user", user.ID).
 		Uint64("clientId", clientId).

pkg/internal/database/allocator.go

@@ -0,0 +1,39 @@
+package database
+
+import (
+	"fmt"
+	"github.com/samber/lo"
+	"github.com/spf13/viper"
+	"strings"
+)
+
+func AllocDatabase(name string) (string, error) {
+	// Disabled
+	if Kdb == nil {
+		return "host=localhost", fmt.Errorf("database feature is disabled")
+	}
+
+	var connString []string
+	connString = strings.Split(viper.GetString("database.dsn"), " ")
+	connString = lo.Filter(connString, func(item string, _ int) bool {
+		return !strings.HasPrefix(item, "dbname=")
+	})
+
+	name = viper.GetString("database.prefix") + name
+
+	var exists bool
+	if err := Kdb.QueryRow("SELECT EXISTS(SELECT datname FROM pg_catalog.pg_database WHERE datname = $1)", name).Scan(&exists); err != nil {
+		return strings.Join(connString, " "), nil
+	}
+
+	if !exists {
+		_, err := Kdb.Exec("CREATE DATABASE " + name)
+		if err != nil {
+			return strings.Join(connString, " "), err
+		}
+	}
+
+	connString = append(connString, "dbname="+name)
+
+	return strings.Join(connString, " "), nil
+}

pkg/internal/database/connect.go

@@ -0,0 +1,16 @@
+package database
+
+import (
+	"database/sql"
+	_ "github.com/lib/pq"
+)
+
+var Kdb *sql.DB
+
+func Connect(str string) (*sql.DB, error) {
+	db, err := sql.Open("postgres", str)
+	if err == nil {
+		Kdb = db
+	}
+	return db, err
+}

pkg/internal/grpc/database.go

@@ -0,0 +1,20 @@
+package grpc
+
+import (
+	"context"
+	"git.solsynth.dev/hypernet/nexus/pkg/internal/database"
+	"git.solsynth.dev/hypernet/nexus/pkg/proto"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+func (v *Server) AllocDatabase(ctx context.Context, request *proto.AllocDatabaseRequest) (*proto.AllocDatabaseResponse, error) {
+	dsn, err := database.AllocDatabase(request.GetName())
+	if err != nil {
+		return nil, status.Errorf(codes.Internal, err.Error())
+	}
+	return &proto.AllocDatabaseResponse{
+		IsSuccess: true,
+		Dsn:       dsn,
+	}, nil
+}

pkg/internal/grpc/health.go

@@ -7,13 +7,13 @@ import (
 	health "google.golang.org/grpc/health/grpc_health_v1"
 )
 
-func (v *GrpcServer) Check(ctx context.Context, request *health.HealthCheckRequest) (*health.HealthCheckResponse, error) {
+func (v *Server) Check(ctx context.Context, request *health.HealthCheckRequest) (*health.HealthCheckResponse, error) {
 	return &health.HealthCheckResponse{
 		Status: health.HealthCheckResponse_SERVING,
 	}, nil
 }
 
-func (v *GrpcServer) Watch(request *health.HealthCheckRequest, server health.Health_WatchServer) error {
+func (v *Server) Watch(request *health.HealthCheckRequest, server health.Health_WatchServer) error {
 	for {
 		if server.Send(&health.HealthCheckResponse{
 			Status: health.HealthCheckResponse_SERVING,

pkg/internal/grpc/server.go

@@ -14,19 +14,22 @@ import (
 	health "google.golang.org/grpc/health/grpc_health_v1"
 )
 
-type GrpcServer struct {
+type Server struct {
+	proto.UnimplementedDatabaseControllerServer
 	proto.UnimplementedStreamControllerServer
+	health.UnimplementedHealthServer
 
 	srv *grpc.Server
 }
 
-func NewServer() *GrpcServer {
+func NewServer() *Server {
-	server := &GrpcServer{
+	server := &Server{
 		srv: grpc.NewServer(),
 	}
 
 	proto.RegisterServiceDirectoryServer(server.srv, &directory.ServiceRpcServer{})
 	proto.RegisterCommandControllerServer(server.srv, &directory.CommandRpcServer{})
+	proto.RegisterDatabaseControllerServer(server.srv, server)
 	proto.RegisterStreamControllerServer(server.srv, server)
 	health.RegisterHealthServer(server.srv, server)
 
@@ -35,7 +38,7 @@ func NewServer() *GrpcServer {
 	return server
 }
 
-func (v *GrpcServer) Listen() error {
+func (v *Server) Listen() error {
 	listener, err := net.Listen("tcp", viper.GetString("grpc_bind"))
 	if err != nil {
 		return err

pkg/internal/grpc/stream.go

@@ -3,27 +3,27 @@ package grpc
 import (
 	"context"
 	"fmt"
+	"git.solsynth.dev/hypernet/nexus/pkg/http/ws"
 
-	"git.solsynth.dev/hypernet/nexus/pkg/internal/services"
 	"git.solsynth.dev/hypernet/nexus/pkg/proto"
 	"github.com/samber/lo"
 )
 
-func (v *GrpcServer) CountStreamConnection(ctx context.Context, request *proto.CountConnectionRequest) (*proto.CountConnectionResponse, error) {
+func (v *Server) CountStreamConnection(ctx context.Context, request *proto.CountConnectionRequest) (*proto.CountConnectionResponse, error) {
-	out := services.ClientCount(uint(request.GetUserId()))
+	out := ws.ClientCount(uint(request.GetUserId()))
 	return &proto.CountConnectionResponse{
 		Count: int64(out),
 	}, nil
 }
 
-func (v *GrpcServer) PushStream(ctx context.Context, request *proto.PushStreamRequest) (*proto.PushStreamResponse, error) {
+func (v *Server) PushStream(ctx context.Context, request *proto.PushStreamRequest) (*proto.PushStreamResponse, error) {
 	var cnt int
 	var success int
 	var errs []error
 	if request.UserId != nil {
-		cnt, success, errs = services.WebsocketPush(uint(request.GetUserId()), request.GetBody())
+		cnt, success, errs = ws.WebsocketPush(uint(request.GetUserId()), request.GetBody())
 	} else if request.ClientId != nil {
-		cnt, success, errs = services.WebsocketPushDirect(request.GetClientId(), request.GetBody())
+		cnt, success, errs = ws.WebsocketPushDirect(request.GetClientId(), request.GetBody())
 	} else {
 		return nil, fmt.Errorf("you must give one of the user id or client id")
 	}
@@ -47,12 +47,12 @@ func (v *GrpcServer) PushStream(ctx context.Context, request *proto.PushStreamRe
 	}, nil
 }
 
-func (v *GrpcServer) PushStreamBatch(ctx context.Context, request *proto.PushStreamBatchRequest) (*proto.PushStreamResponse, error) {
+func (v *Server) PushStreamBatch(ctx context.Context, request *proto.PushStreamBatchRequest) (*proto.PushStreamResponse, error) {
 	var cnt int
 	var success int
 	var errs []error
 	if len(request.UserId) != 0 {
-		cnt, success, errs = services.WebsocketPushBatch(
+		cnt, success, errs = ws.WebsocketPushBatch(
 			lo.Map(request.GetUserId(), func(item uint64, idx int) uint {
 				return uint(item)
 			},
@@ -60,7 +60,7 @@ func (v *GrpcServer) PushStreamBatch(ctx context.Context, request *proto.PushStr
 		)
 	}
 	if len(request.ClientId) != 0 {
-		cCnt, cSuccess, cErrs := services.WebsocketPushBatchDirect(request.GetClientId(), request.GetBody())
+		cCnt, cSuccess, cErrs := ws.WebsocketPushBatchDirect(request.GetClientId(), request.GetBody())
 		cnt += cCnt
 		success += cSuccess
 		errs = append(errs, cErrs...)

pkg/main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"fmt"
+	"git.solsynth.dev/hypernet/nexus/pkg/internal/database"
 	"github.com/fatih/color"
 	"os"
 	"os/signal"
@@ -30,7 +31,7 @@ func main() {
 | |\  |  __/>  <| |_| \__ \
 |_| \_|\___/_/\_\\__,_|___/`))
 	fmt.Printf("%s v%s\n", color.New(color.FgHiYellow).Add(color.Bold).Sprintf("Hypernet.Nexus"), pkg.AppVersion)
-	fmt.Printf("The core component of Hypernet (Solar Network)\n")
+	fmt.Printf("The next-generation web application framework\n")
 	color.HiBlack("=====================================================\n")
 
 	// Configure settings
@@ -44,6 +45,20 @@ func main() {
 		log.Panic().Err(err).Msg("An error occurred when loading settings.")
 	}
 
+	// Connect to database
+	if db, err := database.Connect(viper.GetString("database.dsn")); err != nil {
+		log.Error().Err(err).Msg("An error occurred when connecting to database. Database related features will be disabled.")
+	} else {
+		var version string
+		err := db.QueryRow("SELECT version()").Scan(&version)
+		if err != nil {
+			log.Error().Err(err).Msg("An error occurred when querying database version. Database related features will be disabled.")
+			database.Kdb = nil
+		} else {
+			log.Info().Str("version", version).Msg("Connected to database")
+		}
+	}
+
 	// Server
 	go server.NewServer().Listen()
 

pkg/nex/cruda/allocator.go

@@ -0,0 +1,20 @@
+package cruda
+
+import (
+	"context"
+	"git.solsynth.dev/hypernet/nexus/pkg/proto"
+	"google.golang.org/grpc/metadata"
+)
+
+func (v *CudaConn) AllocDatabase(name string) (string, error) {
+	conn := v.Conn.GetNexusGrpcConn()
+	ctx := context.Background()
+	ctx = metadata.AppendToOutgoingContext(ctx, "client_id", v.Conn.Info.Id)
+	out, err := proto.NewDatabaseControllerClient(conn).AllocDatabase(ctx, &proto.AllocDatabaseRequest{
+		Name: name,
+	})
+	if err != nil || !out.GetIsSuccess() {
+		return "", err
+	}
+	return out.GetDsn(), nil
+}

pkg/nex/cruda/allocator_test.go

@@ -0,0 +1,33 @@
+package cruda_test
+
+import (
+	"fmt"
+	"git.solsynth.dev/hypernet/nexus/pkg/nex"
+	"git.solsynth.dev/hypernet/nexus/pkg/nex/cruda"
+	"git.solsynth.dev/hypernet/nexus/pkg/proto"
+	"testing"
+)
+
+func TestAllocDatabase(t *testing.T) {
+	conn, err := nex.NewNexusConn("127.0.0.1:7001", &proto.ServiceInfo{
+		Id:       "alloc01",
+		Type:     "alloc",
+		Label:    "Allocator",
+		GrpcAddr: "127.0.0.1:6001",
+		HttpAddr: nil,
+	})
+	if err != nil {
+		t.Fatal(fmt.Errorf("unable to connect nexus: %v", err))
+	}
+
+	if err := conn.RegisterService(); err != nil {
+		t.Fatal(fmt.Errorf("unable to register service: %v", err))
+	}
+
+	cc := cruda.NewCudaConn(conn)
+	dsn, err := cc.AllocDatabase("test")
+	if err != nil {
+		t.Fatal(fmt.Errorf("unable to allocate database: %v", err))
+	}
+	t.Log(fmt.Sprintf("Allocated database: %s", dsn))
+}

pkg/nex/cruda/conn.go

@@ -0,0 +1,13 @@
+package cruda
+
+import "git.solsynth.dev/hypernet/nexus/pkg/nex"
+
+type CudaConn struct {
+	Conn *nex.Conn
+}
+
+func NewCudaConn(conn *nex.Conn) *CudaConn {
+	return &CudaConn{
+		Conn: conn,
+	}
+}

pkg/nex/net.go

@@ -1,4 +1,4 @@
-package gap
+package nex
 
 import "net"
 

pkg/proto/database.pb.go

@@ -0,0 +1,193 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
+// source: database.proto
+
+package proto
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type AllocDatabaseRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+}
+
+func (x *AllocDatabaseRequest) Reset() {
+	*x = AllocDatabaseRequest{}
+	mi := &file_database_proto_msgTypes[0]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *AllocDatabaseRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AllocDatabaseRequest) ProtoMessage() {}
+
+func (x *AllocDatabaseRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_database_proto_msgTypes[0]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AllocDatabaseRequest.ProtoReflect.Descriptor instead.
+func (*AllocDatabaseRequest) Descriptor() ([]byte, []int) {
+	return file_database_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *AllocDatabaseRequest) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+type AllocDatabaseResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	IsSuccess bool   `protobuf:"varint,1,opt,name=is_success,json=isSuccess,proto3" json:"is_success,omitempty"`
+	Dsn       string `protobuf:"bytes,2,opt,name=dsn,proto3" json:"dsn,omitempty"`
+}
+
+func (x *AllocDatabaseResponse) Reset() {
+	*x = AllocDatabaseResponse{}
+	mi := &file_database_proto_msgTypes[1]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *AllocDatabaseResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AllocDatabaseResponse) ProtoMessage() {}
+
+func (x *AllocDatabaseResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_database_proto_msgTypes[1]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AllocDatabaseResponse.ProtoReflect.Descriptor instead.
+func (*AllocDatabaseResponse) Descriptor() ([]byte, []int) {
+	return file_database_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *AllocDatabaseResponse) GetIsSuccess() bool {
+	if x != nil {
+		return x.IsSuccess
+	}
+	return false
+}
+
+func (x *AllocDatabaseResponse) GetDsn() string {
+	if x != nil {
+		return x.Dsn
+	}
+	return ""
+}
+
+var File_database_proto protoreflect.FileDescriptor
+
+var file_database_proto_rawDesc = []byte{
+	0x0a, 0x0e, 0x64, 0x61, 0x74, 0x61, 0x62, 0x61, 0x73, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x12, 0x05, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x2a, 0x0a, 0x14, 0x41, 0x6c, 0x6c, 0x6f, 0x63,
+	0x44, 0x61, 0x74, 0x61, 0x62, 0x61, 0x73, 0x65, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12,
+	0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e,
+	0x61, 0x6d, 0x65, 0x22, 0x48, 0x0a, 0x15, 0x41, 0x6c, 0x6c, 0x6f, 0x63, 0x44, 0x61, 0x74, 0x61,
+	0x62, 0x61, 0x73, 0x65, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x1d, 0x0a, 0x0a,
+	0x69, 0x73, 0x5f, 0x73, 0x75, 0x63, 0x63, 0x65, 0x73, 0x73, 0x18, 0x01, 0x20, 0x01, 0x28, 0x08,
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+	0x73, 0x6e, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x64, 0x73, 0x6e, 0x32, 0x62, 0x0a,
+	0x12, 0x44, 0x61, 0x74, 0x61, 0x62, 0x61, 0x73, 0x65, 0x43, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c,
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+	0x62, 0x61, 0x73, 0x65, 0x12, 0x1b, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x41, 0x6c, 0x6c,
+	0x6f, 0x63, 0x44, 0x61, 0x74, 0x61, 0x62, 0x61, 0x73, 0x65, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73,
+	0x74, 0x1a, 0x1c, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x41, 0x6c, 0x6c, 0x6f, 0x63, 0x44,
+	0x61, 0x74, 0x61, 0x62, 0x61, 0x73, 0x65, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22,
+	0x00, 0x42, 0x09, 0x5a, 0x07, 0x2e, 0x3b, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_database_proto_rawDescOnce sync.Once
+	file_database_proto_rawDescData = file_database_proto_rawDesc
+)
+
+func file_database_proto_rawDescGZIP() []byte {
+	file_database_proto_rawDescOnce.Do(func() {
+		file_database_proto_rawDescData = protoimpl.X.CompressGZIP(file_database_proto_rawDescData)
+	})
+	return file_database_proto_rawDescData
+}
+
+var file_database_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_database_proto_goTypes = []any{
+	(*AllocDatabaseRequest)(nil),  // 0: proto.AllocDatabaseRequest
+	(*AllocDatabaseResponse)(nil), // 1: proto.AllocDatabaseResponse
+}
+var file_database_proto_depIdxs = []int32{
+	0, // 0: proto.DatabaseController.AllocDatabase:input_type -> proto.AllocDatabaseRequest
+	1, // 1: proto.DatabaseController.AllocDatabase:output_type -> proto.AllocDatabaseResponse
+	1, // [1:2] is the sub-list for method output_type
+	0, // [0:1] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_database_proto_init() }
+func file_database_proto_init() {
+	if File_database_proto != nil {
+		return
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_database_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_database_proto_goTypes,
+		DependencyIndexes: file_database_proto_depIdxs,
+		MessageInfos:      file_database_proto_msgTypes,
+	}.Build()
+	File_database_proto = out.File
+	file_database_proto_rawDesc = nil
+	file_database_proto_goTypes = nil
+	file_database_proto_depIdxs = nil
+}

pkg/proto/database.proto

@@ -0,0 +1,18 @@
+syntax = "proto3";
+
+option go_package = ".;proto";
+
+package proto;
+
+service DatabaseController {
+  rpc AllocDatabase(AllocDatabaseRequest) returns (AllocDatabaseResponse) {}
+}
+
+message AllocDatabaseRequest {
+  string name = 1;
+}
+
+message AllocDatabaseResponse {
+  bool is_success = 1;
+  string dsn = 2;
+}

pkg/proto/database_grpc.pb.go

@@ -0,0 +1,121 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.5.1
+// - protoc             v5.28.2
+// source: database.proto
+
+package proto
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.64.0 or later.
+const _ = grpc.SupportPackageIsVersion9
+
+const (
+	DatabaseController_AllocDatabase_FullMethodName = "/proto.DatabaseController/AllocDatabase"
+)
+
+// DatabaseControllerClient is the client API for DatabaseController service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type DatabaseControllerClient interface {
+	AllocDatabase(ctx context.Context, in *AllocDatabaseRequest, opts ...grpc.CallOption) (*AllocDatabaseResponse, error)
+}
+
+type databaseControllerClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewDatabaseControllerClient(cc grpc.ClientConnInterface) DatabaseControllerClient {
+	return &databaseControllerClient{cc}
+}
+
+func (c *databaseControllerClient) AllocDatabase(ctx context.Context, in *AllocDatabaseRequest, opts ...grpc.CallOption) (*AllocDatabaseResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(AllocDatabaseResponse)
+	err := c.cc.Invoke(ctx, DatabaseController_AllocDatabase_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// DatabaseControllerServer is the server API for DatabaseController service.
+// All implementations must embed UnimplementedDatabaseControllerServer
+// for forward compatibility.
+type DatabaseControllerServer interface {
+	AllocDatabase(context.Context, *AllocDatabaseRequest) (*AllocDatabaseResponse, error)
+	mustEmbedUnimplementedDatabaseControllerServer()
+}
+
+// UnimplementedDatabaseControllerServer must be embedded to have
+// forward compatible implementations.
+//
+// NOTE: this should be embedded by value instead of pointer to avoid a nil
+// pointer dereference when methods are called.
+type UnimplementedDatabaseControllerServer struct{}
+
+func (UnimplementedDatabaseControllerServer) AllocDatabase(context.Context, *AllocDatabaseRequest) (*AllocDatabaseResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method AllocDatabase not implemented")
+}
+func (UnimplementedDatabaseControllerServer) mustEmbedUnimplementedDatabaseControllerServer() {}
+func (UnimplementedDatabaseControllerServer) testEmbeddedByValue()                            {}
+
+// UnsafeDatabaseControllerServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to DatabaseControllerServer will
+// result in compilation errors.
+type UnsafeDatabaseControllerServer interface {
+	mustEmbedUnimplementedDatabaseControllerServer()
+}
+
+func RegisterDatabaseControllerServer(s grpc.ServiceRegistrar, srv DatabaseControllerServer) {
+	// If the following call pancis, it indicates UnimplementedDatabaseControllerServer was
+	// embedded by pointer and is nil.  This will cause panics if an
+	// unimplemented method is ever invoked, so we test this at initialization
+	// time to prevent it from happening at runtime later due to I/O.
+	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
+		t.testEmbeddedByValue()
+	}
+	s.RegisterService(&DatabaseController_ServiceDesc, srv)
+}
+
+func _DatabaseController_AllocDatabase_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(AllocDatabaseRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(DatabaseControllerServer).AllocDatabase(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: DatabaseController_AllocDatabase_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(DatabaseControllerServer).AllocDatabase(ctx, req.(*AllocDatabaseRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// DatabaseController_ServiceDesc is the grpc.ServiceDesc for DatabaseController service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var DatabaseController_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "proto.DatabaseController",
+	HandlerType: (*DatabaseControllerServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "AllocDatabase",
+			Handler:    _DatabaseController_AllocDatabase_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "database.proto",
+}

settings.toml

@@ -21,8 +21,8 @@ access_token_duration = 300
 refresh_token_duration = 2592000
 
 [database]
-dsn = "host=localhost user=postgres password=password dbname=hy_dealer port=5432 sslmode=disable"
+dsn = "host=localhost user=postgres dbname=postgres password=password port=5432 sslmode=disable"
-prefix = "dealer_"
+prefix = "sn_"
 
 [scraper]
 user-agent = "SolarBot/1.0"