+signup +email availability check

api/pkg/model/userdata.go

@@ -11,17 +11,15 @@ type LoginData struct {
 }
 
 type AccountData struct {
-	LoginData `bson:",inline" json:",inline"`
-	Name      string `bson:"name" json:"name"`
+	LoginData   `bson:",inline" json:",inline"`
+	Describable `bson:",inline" json:",inline"`
 }
 
 func (ad *AccountData) ToAccount() *Account {
 	return &Account{
 		AccountPublic: AccountPublic{
 			AccountBase: AccountBase{
-				Describable: Describable{
-					Name: ad.Name,
-				},
+				Describable: ad.Describable,
 			},
 			UserDataBase: ad.UserDataBase,
 		},

api/server/config.yml

@@ -74,6 +74,16 @@ api:
    settings:
      root_path: ./storage
 
+  chain_gateway:
+    address_env: CHAIN_GATEWAY_ADDRESS
+    dial_timeout_seconds: 5
+    call_timeout_seconds: 5
+    insecure: true
+    default_asset:
+      chain: ARBITRUM_ONE
+      token_symbol: USDT
+      contract_address: ""
+
 app:
 
 database:
@@ -94,4 +104,4 @@ database:
           collection_name_env: PERMISSION_COLLECTION
           database_name_env: MONGO_DATABASE
           timeout_seconds_env: PERMISSION_TIMEOUT
-          is_filtered_env: PERMISSION_IS_FILTERED
+          is_filtered_env: PERMISSION_IS_FILTERED

api/server/go.mod

@@ -4,6 +4,8 @@ go 1.25.3
 
 replace github.com/tech/sendico/pkg => ../pkg
 
+replace github.com/tech/sendico/chain/gateway => ../chain/gateway
+
 require (
 	github.com/aws/aws-sdk-go-v2 v1.39.6
 	github.com/aws/aws-sdk-go-v2/config v1.31.18
@@ -13,8 +15,10 @@ require (
 	github.com/go-chi/cors v1.2.2
 	github.com/go-chi/jwtauth/v5 v5.3.3
 	github.com/go-chi/metrics v0.1.1
+	github.com/google/uuid v1.6.0
 	github.com/mitchellh/mapstructure v1.5.0
 	github.com/stretchr/testify v1.11.1
+	github.com/tech/sendico/chain/gateway v0.1.0
 	github.com/tech/sendico/pkg v0.1.0
 	github.com/testcontainers/testcontainers-go v0.33.0
 	github.com/testcontainers/testcontainers-go/modules/mongodb v0.33.0
@@ -27,7 +31,7 @@ require (
 
 require (
 	github.com/bmatcuk/doublestar/v4 v4.9.1 // indirect
-	github.com/casbin/casbin/v2 v2.132.0 // indirect
+	github.com/casbin/casbin/v2 v2.134.0 // indirect
 	github.com/casbin/govaluate v1.10.0 // indirect
 )
 
@@ -70,7 +74,6 @@ require (
 	github.com/goccy/go-json v0.10.5 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/snappy v1.0.0 // indirect
-	github.com/google/uuid v1.6.0 // indirect
 	github.com/klauspost/compress v1.18.1 // indirect
 	github.com/lestrrat-go/blackmagic v1.0.4 // indirect
 	github.com/lestrrat-go/httpcc v1.0.1 // indirect
@@ -107,8 +110,8 @@ require (
 	github.com/shirou/gopsutil/v3 v3.24.5 // indirect
 	github.com/shoenig/go-m1cpu v0.1.6 // indirect
 	github.com/sirupsen/logrus v1.9.3 // indirect
-	github.com/tklauser/go-sysconf v0.3.15 // indirect
-	github.com/tklauser/numcpus v0.10.0 // indirect
+	github.com/tklauser/go-sysconf v0.3.16 // indirect
+	github.com/tklauser/numcpus v0.11.0 // 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

api/server/go.sum

@@ -48,8 +48,8 @@ github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6r
 github.com/bmatcuk/doublestar/v4 v4.6.1/go.mod h1:xBQ8jztBU6kakFMg+8WGxn0c6z1fTSPVIjEY1Wr7jzc=
 github.com/bmatcuk/doublestar/v4 v4.9.1 h1:X8jg9rRZmJd4yRy7ZeNDRnM+T3ZfHv15JiBJ/avrEXE=
 github.com/bmatcuk/doublestar/v4 v4.9.1/go.mod h1:xBQ8jztBU6kakFMg+8WGxn0c6z1fTSPVIjEY1Wr7jzc=
-github.com/casbin/casbin/v2 v2.132.0 h1:73hGmOszGSL3hTVquwkAi98XLl3gPJ+BxB6D7G9Fxtk=
-github.com/casbin/casbin/v2 v2.132.0/go.mod h1:FmcfntdXLTcYXv/hxgNntcRPqAbwOG9xsism0yXT+18=
+github.com/casbin/casbin/v2 v2.134.0 h1:wyO3hZb487GzlGVAI2hUoHQT0ehFD+9B5P+HVG9BVTM=
+github.com/casbin/casbin/v2 v2.134.0/go.mod h1:FmcfntdXLTcYXv/hxgNntcRPqAbwOG9xsism0yXT+18=
 github.com/casbin/govaluate v1.3.0/go.mod h1:G/UnbIjZk/0uMNaLwZZmFQrR72tYRZWQkO70si/iR7A=
 github.com/casbin/govaluate v1.10.0 h1:ffGw51/hYH3w3rZcxO/KcaUIDOLP84w7nsidMVgaDG0=
 github.com/casbin/govaluate v1.10.0/go.mod h1:G/UnbIjZk/0uMNaLwZZmFQrR72tYRZWQkO70si/iR7A=
@@ -228,10 +228,10 @@ github.com/testcontainers/testcontainers-go v0.33.0 h1:zJS9PfXYT5O0ZFXM2xxXfk4J5
 github.com/testcontainers/testcontainers-go v0.33.0/go.mod h1:W80YpTa8D5C3Yy16icheD01UTDu+LmXIA2Keo+jWtT8=
 github.com/testcontainers/testcontainers-go/modules/mongodb v0.33.0 h1:iXVA84s5hKMS5gn01GWOYHE3ymy/2b+0YkpFeTxB2XY=
 github.com/testcontainers/testcontainers-go/modules/mongodb v0.33.0/go.mod h1:R6tMjTojRiaoo89fh/hf7tOmfzohdqSU17R9DwSVSog=
-github.com/tklauser/go-sysconf v0.3.15 h1:VE89k0criAymJ/Os65CSn1IXaol+1wrsFHEB8Ol49K4=
-github.com/tklauser/go-sysconf v0.3.15/go.mod h1:Dmjwr6tYFIseJw7a3dRLJfsHAMXZ3nEnL/aZY+0IuI4=
-github.com/tklauser/numcpus v0.10.0 h1:18njr6LDBk1zuna922MgdjQuJFjrdppsZG60sHGfjso=
-github.com/tklauser/numcpus v0.10.0/go.mod h1:BiTKazU708GQTYF4mB+cmlpT2Is1gLk7XVuEeem8LsQ=
+github.com/tklauser/go-sysconf v0.3.16 h1:frioLaCQSsF5Cy1jgRBrzr6t502KIIwQ0MArYICU0nA=
+github.com/tklauser/go-sysconf v0.3.16/go.mod h1:/qNL9xxDhc7tx3HSRsLWNnuzbVfh3e7gh/BmM179nYI=
+github.com/tklauser/numcpus v0.11.0 h1:nSTwhKH5e1dMNsCdVBukSZrURJRoHbSEQjdEbY+9RXw=
+github.com/tklauser/numcpus v0.11.0/go.mod h1:z+LwcLq54uWZTX0u/bGobaV34u6V7KNlTZejzM6/3MQ=
 github.com/xdg-go/pbkdf2 v1.0.0 h1:Su7DPu48wXMwC3bs7MCNG+z4FhcyEuz5dlvchbq0B0c=
 github.com/xdg-go/pbkdf2 v1.0.0/go.mod h1:jrpuAogTd400dnrH08LKmI/xc1MbPOebTwRqcT5RDeI=
 github.com/xdg-go/scram v1.1.2 h1:FHX5I5B4i4hKRVRBCFRxq1iQRej7WO3hhBuJf+UUySY=
@@ -338,8 +338,8 @@ golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
 golang.org/x/text v0.31.0 h1:aC8ghyu4JhP8VojJ2lEHBnochRno1sgL6nEi9WGFGMM=
 golang.org/x/text v0.31.0/go.mod h1:tKRAlv61yKIjGGHX/4tP1LTbc13YSec1pxVEWXzfoeM=
-golang.org/x/time v0.5.0 h1:o7cqy6amK/52YcAKIPlM3a+Fpj35zvRj2TP+e1xFSfk=
-golang.org/x/time v0.5.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
+golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI=
+golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=

api/server/interface/api/config.go

@@ -6,6 +6,21 @@ import (
 )
 
 type Config struct {
-	Mw      *mwa.Config `yaml:"middleware"`
-	Storage *fsc.Config `yaml:"storage"`
+	Mw           *mwa.Config        `yaml:"middleware"`
+	Storage      *fsc.Config        `yaml:"storage"`
+	ChainGateway *ChainGatewayConfig `yaml:"chain_gateway"`
+}
+
+type ChainGatewayConfig struct {
+	AddressEnv         string                  `yaml:"address_env"`
+	DialTimeoutSeconds int                     `yaml:"dial_timeout_seconds"`
+	CallTimeoutSeconds int                     `yaml:"call_timeout_seconds"`
+	Insecure           bool                    `yaml:"insecure"`
+	DefaultAsset       ChainGatewayAssetConfig `yaml:"default_asset"`
+}
+
+type ChainGatewayAssetConfig struct {
+	Chain           string `yaml:"chain"`
+	TokenSymbol     string `yaml:"token_symbol"`
+	ContractAddress string `yaml:"contract_address"`
 }

api/server/interface/api/srequest/signup.go

@@ -4,7 +4,7 @@ import "github.com/tech/sendico/pkg/model"
 
 type Signup struct {
 	Account              model.AccountData `json:"account"`
-	OrganizationName     string            `json:"organizationName"`
+	Organization         model.Describable `json:"organization"`
 	OrganizationTimeZone string            `json:"organizationTimeZone"`
 	AnonymousUser        model.Describable `json:"anonymousUser"`
 	OwnerRole            model.Describable `json:"ownerRole"`

api/server/interface/api/srequest/signup_test.go

@@ -20,9 +20,13 @@ func TestSignupRequest_JSONSerialization(t *testing.T) {
 				},
 				Password: "TestPassword123!",
 			},
-			Name: "Test User",
+			Describable: model.Describable{
+				Name: "Test User",
+			},
+		},
+		Organization: model.Describable{
+			Name: "Test Organization",
 		},
-		OrganizationName:     "Test Organization",
 		OrganizationTimeZone: "UTC",
 		AnonymousUser: model.Describable{
 			Name: "Anonymous User",
@@ -49,7 +53,7 @@ func TestSignupRequest_JSONSerialization(t *testing.T) {
 	assert.Equal(t, signup.Account.Name, unmarshaled.Account.Name)
 	assert.Equal(t, signup.Account.Login, unmarshaled.Account.Login)
 	assert.Equal(t, signup.Account.Password, unmarshaled.Account.Password)
-	assert.Equal(t, signup.OrganizationName, unmarshaled.OrganizationName)
+	assert.Equal(t, signup.Organization.Name, unmarshaled.Organization.Name)
 	assert.Equal(t, signup.OrganizationTimeZone, unmarshaled.OrganizationTimeZone)
 	assert.Equal(t, signup.AnonymousUser.Name, unmarshaled.AnonymousUser.Name)
 	assert.Equal(t, signup.OwnerRole.Name, unmarshaled.OwnerRole.Name)
@@ -65,9 +69,13 @@ func TestSignupRequest_MinimalValidRequest(t *testing.T) {
 				},
 				Password: "TestPassword123!",
 			},
-			Name: "Test User",
+			Describable: model.Describable{
+				Name: "Test User",
+			},
+		},
+		Organization: model.Describable{
+			Name: "Test Organization",
 		},
-		OrganizationName:     "Test Organization",
 		OrganizationTimeZone: "UTC",
 		AnonymousUser: model.Describable{
 			Name: "Anonymous",
@@ -93,13 +101,13 @@ func TestSignupRequest_MinimalValidRequest(t *testing.T) {
 	// Verify minimal request is valid
 	assert.Equal(t, signup.Account.Name, unmarshaled.Account.Name)
 	assert.Equal(t, signup.Account.Login, unmarshaled.Account.Login)
-	assert.Equal(t, signup.OrganizationName, unmarshaled.OrganizationName)
+	assert.Equal(t, signup.Organization.Name, unmarshaled.Organization.Name)
 }
 
 func TestSignupRequest_InvalidJSON(t *testing.T) {
 	invalidJSONs := []string{
 		`{"account": invalid}`,
-		`{"organizationName": 123}`,
+		`{"organization": 123}`,
 		`{"organizationTimeZone": true}`,
 		`{"defaultPriorityGroup": "not_an_object"}`,
 		`{"anonymousUser": []}`,
@@ -125,9 +133,13 @@ func TestSignupRequest_UnicodeCharacters(t *testing.T) {
 				},
 				Password: "TestPassword123!",
 			},
-			Name: "Test 用户 Üser",
+			Describable: model.Describable{
+				Name: "Test 用户 Üser",
+			},
+		},
+		Organization: model.Describable{
+			Name: "测试 Organization",
 		},
-		OrganizationName:     "测试 Organization",
 		OrganizationTimeZone: "UTC",
 		AnonymousUser: model.Describable{
 			Name: "匿名 User",
@@ -153,7 +165,7 @@ func TestSignupRequest_UnicodeCharacters(t *testing.T) {
 	// Verify unicode characters are properly handled
 	assert.Equal(t, "测试@example.com", unmarshaled.Account.Login)
 	assert.Equal(t, "Test 用户 Üser", unmarshaled.Account.Name)
-	assert.Equal(t, "测试 Organization", unmarshaled.OrganizationName)
+	assert.Equal(t, "测试 Organization", unmarshaled.Organization.Name)
 	assert.Equal(t, "匿名 User", unmarshaled.AnonymousUser.Name)
 	assert.Equal(t, "所有者", unmarshaled.OwnerRole.Name)
 	assert.Equal(t, "匿名", unmarshaled.AnonymousRole.Name)

api/server/interface/api/sresponse/signup_availability.go

@@ -0,0 +1,23 @@
+package sresponse
+
+import (
+	"net/http"
+
+	"github.com/tech/sendico/pkg/api/http/response"
+	"github.com/tech/sendico/pkg/mlogger"
+)
+
+type SignupAvailability struct {
+	Login     string `json:"login"`
+	Available bool   `json:"available"`
+}
+
+func SignUpAvailability(logger mlogger.Logger, login string, available bool) http.HandlerFunc {
+	return response.Ok(
+		logger,
+		SignupAvailability{
+			Login:     login,
+			Available: available,
+		},
+	)
+}

api/server/internal/server/accountapiimp/service.go

@@ -2,7 +2,12 @@ package accountapiimp
 
 import (
 	"context"
+	"fmt"
+	"os"
+	"strings"
+	"time"
 
+	chaingatewayclient "github.com/tech/sendico/chain/gateway/client"
 	api "github.com/tech/sendico/pkg/api/http"
 	"github.com/tech/sendico/pkg/auth"
 	"github.com/tech/sendico/pkg/db/account"
@@ -14,6 +19,7 @@ import (
 	"github.com/tech/sendico/pkg/messaging"
 	"github.com/tech/sendico/pkg/mlogger"
 	"github.com/tech/sendico/pkg/mservice"
+	gatewayv1 "github.com/tech/sendico/pkg/proto/chain/gateway/v1"
 	"github.com/tech/sendico/server/interface/accountservice"
 	eapi "github.com/tech/sendico/server/interface/api"
 	"github.com/tech/sendico/server/interface/services/fileservice"
@@ -39,6 +45,13 @@ type AccountAPI struct {
 	tph                   mutil.ParamHelper
 	accountsPermissionRef primitive.ObjectID
 	accService            accountservice.AccountService
+	chainGateway          chainWalletClient
+	chainAsset            *gatewayv1.Asset
+}
+
+type chainWalletClient interface {
+	CreateManagedWallet(ctx context.Context, req *gatewayv1.CreateManagedWalletRequest) (*gatewayv1.CreateManagedWalletResponse, error)
+	Close() error
 }
 
 func (a *AccountAPI) Name() mservice.Type {
@@ -46,7 +59,15 @@ func (a *AccountAPI) Name() mservice.Type {
 }
 
 func (a *AccountAPI) Finish(ctx context.Context) error {
-	return a.avatars.Finish(ctx)
+	if err := a.avatars.Finish(ctx); err != nil {
+		return err
+	}
+	if a.chainGateway != nil {
+		if err := a.chainGateway.Close(); err != nil {
+			a.logger.Warn("Failed to close chain gateway client", zap.Error(err))
+		}
+	}
+	return nil
 }
 
 func CreateAPI(a eapi.API) (*AccountAPI, error) {
@@ -86,6 +107,7 @@ func CreateAPI(a eapi.API) (*AccountAPI, error) {
 
 	// Account related api endpoints
 	a.Register().Handler(mservice.Accounts, "/signup", api.Post, p.signup)
+	a.Register().Handler(mservice.Accounts, "/signup/availability", api.Get, p.signupAvailability)
 
 	a.Register().AccountHandler(mservice.Accounts, "", api.Put, p.updateProfile)
 	a.Register().AccountHandler(mservice.Accounts, "", api.Get, p.getProfile)
@@ -120,5 +142,74 @@ func CreateAPI(a eapi.API) (*AccountAPI, error) {
 	}
 	p.accountsPermissionRef = accountsPolicy.ID
 
+	if err := p.initChainGateway(a.Config()); err != nil {
+		p.logger.Error("Failed to initialize chain gateway client", zap.Error(err))
+		return nil, err
+	}
+
 	return p, nil
 }
+
+func (a *AccountAPI) initChainGateway(cfg *eapi.Config) error {
+	if cfg == nil || cfg.ChainGateway == nil {
+		return fmt.Errorf("chain gateway configuration is not provided")
+	}
+
+	address := strings.TrimSpace(os.Getenv(cfg.ChainGateway.AddressEnv))
+	if address == "" {
+		return fmt.Errorf("chain gateway address env %s is empty", cfg.ChainGateway.AddressEnv)
+	}
+
+	clientCfg := chaingatewayclient.Config{
+		Address:     address,
+		DialTimeout: time.Duration(cfg.ChainGateway.DialTimeoutSeconds) * time.Second,
+		CallTimeout: time.Duration(cfg.ChainGateway.CallTimeoutSeconds) * time.Second,
+		Insecure:    cfg.ChainGateway.Insecure,
+	}
+
+	client, err := chaingatewayclient.New(context.Background(), clientCfg)
+	if err != nil {
+		return err
+	}
+
+	asset, err := buildGatewayAsset(cfg.ChainGateway.DefaultAsset)
+	if err != nil {
+		_ = client.Close()
+		return err
+	}
+
+	a.chainGateway = client
+	a.chainAsset = asset
+	return nil
+}
+
+func buildGatewayAsset(cfg eapi.ChainGatewayAssetConfig) (*gatewayv1.Asset, error) {
+	chain, err := parseChainNetwork(cfg.Chain)
+	if err != nil {
+		return nil, err
+	}
+	tokenSymbol := strings.TrimSpace(cfg.TokenSymbol)
+	if tokenSymbol == "" {
+		return nil, fmt.Errorf("chain gateway token symbol is required")
+	}
+	return &gatewayv1.Asset{
+		Chain:           chain,
+		TokenSymbol:     strings.ToUpper(tokenSymbol),
+		ContractAddress: strings.ToLower(strings.TrimSpace(cfg.ContractAddress)),
+	}, nil
+}
+
+func parseChainNetwork(value string) (gatewayv1.ChainNetwork, error) {
+	switch strings.ToUpper(strings.TrimSpace(value)) {
+	case "ETHEREUM_MAINNET", "CHAIN_NETWORK_ETHEREUM_MAINNET":
+		return gatewayv1.ChainNetwork_CHAIN_NETWORK_ETHEREUM_MAINNET, nil
+	case "ARBITRUM_ONE", "CHAIN_NETWORK_ARBITRUM_ONE":
+		return gatewayv1.ChainNetwork_CHAIN_NETWORK_ARBITRUM_ONE, nil
+	case "OTHER_EVM", "CHAIN_NETWORK_OTHER_EVM":
+		return gatewayv1.ChainNetwork_CHAIN_NETWORK_OTHER_EVM, nil
+	case "", "CHAIN_NETWORK_UNSPECIFIED":
+		return gatewayv1.ChainNetwork_CHAIN_NETWORK_UNSPECIFIED, fmt.Errorf("chain network must be specified")
+	default:
+		return gatewayv1.ChainNetwork_CHAIN_NETWORK_UNSPECIFIED, fmt.Errorf("unsupported chain network %s", value)
+	}
+}

api/server/internal/server/accountapiimp/signup.go

@@ -6,13 +6,16 @@ import (
 	"errors"
 	"fmt"
 	"net/http"
+	"strings"
 	"time"
 
+	"github.com/google/uuid"
 	"github.com/tech/sendico/pkg/api/http/response"
 	"github.com/tech/sendico/pkg/merrors"
 	"github.com/tech/sendico/pkg/model"
 	"github.com/tech/sendico/pkg/mservice"
 	"github.com/tech/sendico/pkg/mutil/mzap"
+	gatewayv1 "github.com/tech/sendico/pkg/proto/chain/gateway/v1"
 	"github.com/tech/sendico/server/interface/api/srequest"
 	"github.com/tech/sendico/server/interface/api/sresponse"
 	"go.mongodb.org/mongo-driver/bson/primitive"
@@ -41,6 +44,10 @@ func (a *AccountAPI) createAnonymousAccount(ctx context.Context, org *model.Orga
 }
 
 func (a *AccountAPI) createOrg(ctx context.Context, sr *srequest.Signup, permissionRef primitive.ObjectID) (*model.Organization, error) {
+	name := strings.TrimSpace(sr.Organization.Name)
+	if name == "" {
+		return nil, merrors.InvalidArgument("organization name must not be empty")
+	}
 	if _, err := time.LoadLocation(sr.OrganizationTimeZone); err != nil {
 		return nil, merrors.DataConflict(fmt.Sprintf("invalid time zone '%s' provided, error %s", sr.OrganizationTimeZone, err.Error()))
 	}
@@ -51,7 +58,8 @@ func (a *AccountAPI) createOrg(ctx context.Context, sr *srequest.Signup, permiss
 				PermissionRef: permissionRef,
 			},
 			Describable: model.Describable{
-				Name: sr.OrganizationName,
+				Name:        name,
+				Description: sr.Organization.Description,
 			},
 			TimeZone: sr.OrganizationTimeZone,
 		},
@@ -74,6 +82,18 @@ func (a *AccountAPI) signup(r *http.Request) http.HandlerFunc {
 		return response.BadRequest(a.logger, a.Name(), "", err.Error())
 	}
 
+	sr.Account.Login = strings.ToLower(strings.TrimSpace(sr.Account.Login))
+	if err := a.ensureLoginAvailable(r.Context(), sr.Account.Login); err != nil {
+		if errors.Is(err, merrors.ErrDataConflict) {
+			return response.DataConflict(a.logger, "user_already_registered", "User has already been registered")
+		}
+		if errors.Is(err, merrors.ErrInvalidArg) {
+			return response.BadPayload(a.logger, a.Name(), err)
+		}
+		a.logger.Warn("Failed to validate login availability", zap.Error(err), zap.String("login", sr.Account.Login))
+		return response.Internal(a.logger, a.Name(), err)
+	}
+
 	newAccount := sr.Account.ToAccount()
 	if res := a.accService.ValidateAccount(newAccount); res != nil {
 		a.logger.Warn("Invalid signup account received", zap.Error(res), zap.String("account", newAccount.Login))
@@ -96,6 +116,26 @@ func (a *AccountAPI) signup(r *http.Request) http.HandlerFunc {
 	return sresponse.SignUp(a.logger, newAccount)
 }
 
+func (a *AccountAPI) signupAvailability(r *http.Request) http.HandlerFunc {
+	login := strings.ToLower(strings.TrimSpace(r.URL.Query().Get("login")))
+	if login == "" {
+		return response.BadRequest(a.logger, a.Name(), "missing_login", "login query parameter is required")
+	}
+
+	err := a.ensureLoginAvailable(r.Context(), login)
+	switch {
+	case err == nil:
+		return sresponse.SignUpAvailability(a.logger, login, true)
+	case errors.Is(err, merrors.ErrDataConflict):
+		return sresponse.SignUpAvailability(a.logger, login, false)
+	case errors.Is(err, merrors.ErrInvalidArg):
+		return response.BadPayload(a.logger, a.Name(), err)
+	default:
+		a.logger.Warn("Failed to check login availability", zap.Error(err), zap.String("login", login))
+		return response.Internal(a.logger, a.Name(), err)
+	}
+}
+
 func (a *AccountAPI) executeSignupTransaction(ctxt context.Context, sr *srequest.Signup, newAccount *model.Account) error {
 	_, err := a.tf.CreateTransaction().Execute(ctxt, func(ctx context.Context) (any, error) {
 		return a.signupTransactionBody(ctx, sr, newAccount)
@@ -116,6 +156,10 @@ func (a *AccountAPI) signupTransactionBody(ctx context.Context, sr *srequest.Sig
 		return nil, err
 	}
 
+	if err := a.openOrgWallet(ctx, org, sr); err != nil {
+		return nil, err
+	}
+
 	roleDescription, err := a.pmanager.Role().Create(ctx, org.ID, &sr.OwnerRole)
 	if err != nil {
 		a.logger.Warn("Failed to create owner role", zap.Error(err), zap.String("login", newAccount.Login))
@@ -146,8 +190,21 @@ func (a *AccountAPI) grantAllPermissions(ctx context.Context, organizationRef pr
 		return err
 	}
 
+	required := map[mservice.Type]bool{
+		mservice.Organizations:  false,
+		mservice.Accounts:       false,
+		mservice.LedgerAccounts: false,
+	}
+
 	actions := []model.Action{model.ActionCreate, model.ActionRead, model.ActionUpdate, model.ActionDelete}
 	for _, policy := range policies {
+		if policy.ResourceTypes != nil {
+			for _, resource := range *policy.ResourceTypes {
+				if _, ok := required[resource]; ok {
+					required[resource] = true
+				}
+			}
+		}
 		for _, action := range actions {
 			a.logger.Debug("Adding permission", mzap.StorableRef(&policy), zap.String("action", string(action)),
 				mzap.ObjRef("role_ref", roleID), mzap.ObjRef("policy_ref", policy.ID), mzap.ObjRef("organization_ref", organizationRef))
@@ -172,5 +229,55 @@ func (a *AccountAPI) grantAllPermissions(ctx context.Context, organizationRef pr
 		return err
 	}
 
+	for resource, granted := range required {
+		if !granted {
+			a.logger.Warn("Required policy description not found for signup permissions", zap.String("resource", string(resource)))
+		}
+	}
+
+	return nil
+}
+
+func (a *AccountAPI) ensureLoginAvailable(ctx context.Context, login string) error {
+	if strings.TrimSpace(login) == "" {
+		return merrors.InvalidArgument("login must not be empty")
+	}
+	if _, err := a.db.GetByEmail(ctx, login); err != nil {
+		if errors.Is(err, merrors.ErrNoData) {
+			return nil
+		}
+		a.logger.Warn("Failed to lookup account by login", zap.Error(err), zap.String("login", login))
+		return err
+	}
+	return merrors.DataConflict("account already exists")
+}
+
+func (a *AccountAPI) openOrgWallet(ctx context.Context, org *model.Organization, sr *srequest.Signup) error {
+	if a.chainGateway == nil || a.chainAsset == nil {
+		a.logger.Warn("Chain gateway client not configured, skipping wallet creation", mzap.StorableRef(org))
+		return merrors.Internal("chain gateway client is not configured")
+	}
+	asset := *a.chainAsset
+	req := &gatewayv1.CreateManagedWalletRequest{
+		IdempotencyKey:  uuid.NewString(),
+		OrganizationRef: org.ID.Hex(),
+		OwnerRef:        org.ID.Hex(),
+		Asset:           &asset,
+		Metadata: map[string]string{
+			"source": "signup",
+			"login":  sr.Account.Login,
+		},
+	}
+
+	resp, err := a.chainGateway.CreateManagedWallet(ctx, req)
+	if err != nil {
+		a.logger.Warn("Failed to create managed wallet for organization", zap.Error(err), mzap.StorableRef(org))
+		return err
+	}
+	if resp == nil || resp.Wallet == nil || strings.TrimSpace(resp.Wallet.WalletRef) == "" {
+		return merrors.Internal("chain gateway returned empty wallet reference")
+	}
+
+	a.logger.Info("Managed wallet created for organization", mzap.StorableRef(org), zap.String("wallet_ref", resp.Wallet.WalletRef))
 	return nil
 }

api/server/internal/server/accountapiimp/signup_integration_test.go

@@ -65,9 +65,13 @@ func TestSignupRequestSerialization(t *testing.T) {
 					},
 					Password: "TestPassword123!",
 				},
-				Name: "Test User",
+				Describable: model.Describable{
+					Name: "Test User",
+				},
+			},
+			Organization: model.Describable{
+				Name: "Test Organization",
 			},
-			OrganizationName:     "Test Organization",
 			OrganizationTimeZone: "UTC",
 			AnonymousUser: model.Describable{
 				Name: "Anonymous User",
@@ -93,7 +97,7 @@ func TestSignupRequestSerialization(t *testing.T) {
 		// Verify data integrity
 		assert.Equal(t, signupRequest.Account.Login, retrieved.Account.Login)
 		assert.Equal(t, signupRequest.Account.Name, retrieved.Account.Name)
-		assert.Equal(t, signupRequest.OrganizationName, retrieved.OrganizationName)
+		assert.Equal(t, signupRequest.Organization.Name, retrieved.Organization.Name)
 		assert.Equal(t, signupRequest.OrganizationTimeZone, retrieved.OrganizationTimeZone)
 
 	})
@@ -109,9 +113,13 @@ func TestSignupHTTPSerialization(t *testing.T) {
 				},
 				Password: "TestPassword123!",
 			},
-			Name: "Test User",
+			Describable: model.Describable{
+				Name: "Test User",
+			},
+		},
+		Organization: model.Describable{
+			Name: "Test Organization",
 		},
-		OrganizationName:     "Test Organization",
 		OrganizationTimeZone: "UTC",
 		AnonymousUser: model.Describable{
 			Name: "Anonymous User",
@@ -141,13 +149,13 @@ func TestSignupHTTPSerialization(t *testing.T) {
 		// Verify parsing
 		assert.Equal(t, signupRequest.Account.Login, parsedRequest.Account.Login)
 		assert.Equal(t, signupRequest.Account.Name, parsedRequest.Account.Name)
-		assert.Equal(t, signupRequest.OrganizationName, parsedRequest.OrganizationName)
+		assert.Equal(t, signupRequest.Organization.Name, parsedRequest.Organization.Name)
 	})
 
 	t.Run("UnicodeCharacters", func(t *testing.T) {
 		unicodeRequest := signupRequest
 		unicodeRequest.Account.Name = "Test 用户 Üser"
-		unicodeRequest.OrganizationName = "测试 Organization"
+		unicodeRequest.Organization.Name = "测试 Organization"
 
 		// Serialize to JSON
 		reqBody, err := json.Marshal(unicodeRequest)
@@ -160,7 +168,7 @@ func TestSignupHTTPSerialization(t *testing.T) {
 
 		// Verify unicode characters are preserved
 		assert.Equal(t, "Test 用户 Üser", parsedRequest.Account.Name)
-		assert.Equal(t, "测试 Organization", parsedRequest.OrganizationName)
+		assert.Equal(t, "测试 Organization", parsedRequest.Organization.Name)
 	})
 
 	t.Run("InvalidJSONRequest", func(t *testing.T) {
@@ -184,7 +192,9 @@ func TestAccountDataConversion(t *testing.T) {
 			},
 			Password: "TestPassword123!",
 		},
-		Name: "Test User",
+		Describable: model.Describable{
+			Name: "Test User",
+		},
 	}
 
 	t.Run("ToAccount", func(t *testing.T) {

api/server/internal/server/accountapiimp/signup_test.go

@@ -1,12 +1,18 @@
 package accountapiimp
 
 import (
+	"context"
+	"errors"
 	"testing"
 	"time"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/tech/sendico/pkg/db/repository/builder"
+	"github.com/tech/sendico/pkg/merrors"
 	"github.com/tech/sendico/pkg/model"
 	"github.com/tech/sendico/server/interface/api/srequest"
+	"go.mongodb.org/mongo-driver/bson/primitive"
+	"go.uber.org/zap"
 )
 
 // Helper function to create string pointers
@@ -60,9 +66,13 @@ func TestCreateValidSignupRequest(t *testing.T) {
 				},
 				Password: "TestPassword123!",
 			},
-			Name: "Test User",
+			Describable: model.Describable{
+				Name: "Test User",
+			},
+		},
+		Organization: model.Describable{
+			Name: "Test Organization",
 		},
-		OrganizationName:     "Test Organization",
 		OrganizationTimeZone: "UTC",
 		AnonymousUser: model.Describable{
 			Name: "Anonymous User",
@@ -79,7 +89,7 @@ func TestCreateValidSignupRequest(t *testing.T) {
 	assert.Equal(t, "test@example.com", request.Account.Login)
 	assert.Equal(t, "TestPassword123!", request.Account.Password)
 	assert.Equal(t, "Test User", request.Account.Name)
-	assert.Equal(t, "Test Organization", request.OrganizationName)
+	assert.Equal(t, "Test Organization", request.Organization.Name)
 	assert.Equal(t, "UTC", request.OrganizationTimeZone)
 }
 
@@ -94,9 +104,13 @@ func TestSignupRequestValidation(t *testing.T) {
 					},
 					Password: "TestPassword123!",
 				},
-				Name: "Test User",
+				Describable: model.Describable{
+					Name: "Test User",
+				},
+			},
+			Organization: model.Describable{
+				Name: "Test Organization",
 			},
-			OrganizationName:     "Test Organization",
 			OrganizationTimeZone: "UTC",
 		}
 
@@ -104,7 +118,7 @@ func TestSignupRequestValidation(t *testing.T) {
 		assert.NotEmpty(t, request.Account.Login)
 		assert.NotEmpty(t, request.Account.Password)
 		assert.NotEmpty(t, request.Account.Name)
-		assert.NotEmpty(t, request.OrganizationName)
+		assert.NotEmpty(t, request.Organization.Name)
 		assert.NotEmpty(t, request.OrganizationTimeZone)
 	})
 
@@ -205,7 +219,9 @@ func TestAccountDataToAccount(t *testing.T) {
 			},
 			Password: "TestPassword123!",
 		},
-		Name: "Test User",
+		Describable: model.Describable{
+			Name: "Test User",
+		},
 	}
 
 	account := accountData.ToAccount()
@@ -240,3 +256,106 @@ func TestColorValidation(t *testing.T) {
 		})
 	}
 }
+
+type stubAccountDB struct {
+	result *model.Account
+	err    error
+}
+
+func (s *stubAccountDB) GetByEmail(ctx context.Context, email string) (*model.Account, error) {
+	return s.result, s.err
+}
+
+func (s *stubAccountDB) GetByToken(ctx context.Context, email string) (*model.Account, error) {
+	return nil, merrors.NotImplemented("stub")
+}
+
+func (s *stubAccountDB) GetAccountsByRefs(ctx context.Context, orgRef primitive.ObjectID, refs []primitive.ObjectID) ([]model.Account, error) {
+	return nil, merrors.NotImplemented("stub")
+}
+
+func (s *stubAccountDB) Create(ctx context.Context, object *model.Account) error {
+	return merrors.NotImplemented("stub")
+}
+
+func (s *stubAccountDB) InsertMany(ctx context.Context, objects []*model.Account) error {
+	return merrors.NotImplemented("stub")
+}
+
+func (s *stubAccountDB) Get(ctx context.Context, objectRef primitive.ObjectID, result *model.Account) error {
+	return merrors.NotImplemented("stub")
+}
+
+func (s *stubAccountDB) Update(ctx context.Context, object *model.Account) error {
+	return merrors.NotImplemented("stub")
+}
+
+func (s *stubAccountDB) Patch(ctx context.Context, objectRef primitive.ObjectID, patch builder.Patch) error {
+	return merrors.NotImplemented("stub")
+}
+
+func (s *stubAccountDB) Delete(ctx context.Context, objectRef primitive.ObjectID) error {
+	return merrors.NotImplemented("stub")
+}
+
+func (s *stubAccountDB) DeleteMany(ctx context.Context, query builder.Query) error {
+	return merrors.NotImplemented("stub")
+}
+
+func (s *stubAccountDB) DeleteCascade(ctx context.Context, objectRef primitive.ObjectID) error {
+	return merrors.NotImplemented("stub")
+}
+
+func (s *stubAccountDB) FindOne(ctx context.Context, query builder.Query, result *model.Account) error {
+	return merrors.NotImplemented("stub")
+}
+
+func TestEnsureLoginAvailable(t *testing.T) {
+	ctx := context.Background()
+	logger := zap.NewNop()
+
+	t.Run("available", func(t *testing.T) {
+		api := &AccountAPI{
+			logger: logger,
+			db: &stubAccountDB{
+				err: merrors.ErrNoData,
+			},
+		}
+		assert.NoError(t, api.ensureLoginAvailable(ctx, "new@example.com"))
+	})
+
+	t.Run("taken", func(t *testing.T) {
+		api := &AccountAPI{
+			logger: logger,
+			db: &stubAccountDB{
+				result: &model.Account{},
+			},
+		}
+		err := api.ensureLoginAvailable(ctx, "used@example.com")
+		assert.Error(t, err)
+		assert.True(t, errors.Is(err, merrors.ErrDataConflict))
+	})
+
+	t.Run("invalid login", func(t *testing.T) {
+		api := &AccountAPI{
+			logger: logger,
+			db: &stubAccountDB{
+				err: merrors.ErrNoData,
+			},
+		}
+		err := api.ensureLoginAvailable(ctx, "  ")
+		assert.Error(t, err)
+		assert.True(t, errors.Is(err, merrors.ErrInvalidArg))
+	})
+
+	t.Run("db error", func(t *testing.T) {
+		api := &AccountAPI{
+			logger: logger,
+			db: &stubAccountDB{
+				err: errors.New("boom"),
+			},
+		}
+		err := api.ensureLoginAvailable(ctx, "err@example.com")
+		assert.EqualError(t, err, "boom")
+	})
+}

frontend/pshared/lib/api/requests/signup.dart

@@ -5,20 +5,20 @@ part 'signup.g.dart';
 
 @JsonSerializable(explicitToJson: true)
 class SignupRequest {
-  final String name;
-  final String login;
-  final String password;
-  final String locale;
-  final String organizationName;
+  final SignupAccount account;
+  final DescribableRequest organization;
   final String organizationTimeZone;
+  final DescribableRequest anonymousUser;
+  final DescribableRequest ownerRole;
+  final DescribableRequest anonymousRole;
 
   const SignupRequest({
-    required this.name,
-    required this.login,
-    required this.password,
-    required this.locale,
-    required this.organizationName,
+    required this.account,
+    required this.organization,
     required this.organizationTimeZone,
+    required this.anonymousUser,
+    required this.ownerRole,
+    required this.anonymousRole,
   });
 
   factory SignupRequest.build({
@@ -28,15 +28,55 @@ class SignupRequest {
     required String locale,
     required String organizationName,
     required String organizationTimeZone,
-  }) => SignupRequest(
-    name: name, 
-    login: login, 
-    password: password, 
-    locale: locale, 
-    organizationName: organizationName, 
-    organizationTimeZone: organizationTimeZone, 
-  );
+  }) =>
+      SignupRequest(
+        account: SignupAccount(
+          name: name,
+          login: login,
+          password: password,
+          locale: locale,
+        ),
+        organization: DescribableRequest(name: organizationName),
+        organizationTimeZone: organizationTimeZone,
+        anonymousUser: const DescribableRequest(name: 'Anonymous'),
+        ownerRole: const DescribableRequest(name: 'Owner'),
+        anonymousRole: const DescribableRequest(name: 'Anonymous'),
+      );
 
-  factory SignupRequest.fromJson(Map<String, dynamic> json) => _$SignupRequestFromJson(json);
+  factory SignupRequest.fromJson(Map<String, dynamic> json) =>
+      _$SignupRequestFromJson(json);
   Map<String, dynamic> toJson() => _$SignupRequestToJson(this);
 }
+
+@JsonSerializable()
+class SignupAccount {
+  final String name;
+  final String login;
+  final String password;
+  final String locale;
+  final String? description;
+
+  const SignupAccount({
+    required this.name,
+    required this.login,
+    required this.password,
+    required this.locale,
+    this.description,
+  });
+
+  factory SignupAccount.fromJson(Map<String, dynamic> json) =>
+      _$SignupAccountFromJson(json);
+  Map<String, dynamic> toJson() => _$SignupAccountToJson(this);
+}
+
+@JsonSerializable()
+class DescribableRequest {
+  final String name;
+  final String? description;
+
+  const DescribableRequest({required this.name, this.description});
+
+  factory DescribableRequest.fromJson(Map<String, dynamic> json) =>
+      _$DescribableRequestFromJson(json);
+  Map<String, dynamic> toJson() => _$DescribableRequestToJson(this);
+}