diff --git a/src/domain/common.schema.ts b/src/domain/common.schema.ts
new file mode 100644
index 0000000..c4574cc
--- /dev/null
+++ b/src/domain/common.schema.ts
@@ -0,0 +1,10 @@
+export interface RGB {
+    r: number;
+    g: number;
+    b: number;
+}
+
+export interface TimeStamp {
+    T: number;
+    I: number;
+}
\ No newline at end of file
diff --git a/src/domain/networkService.schema.ts b/src/domain/networkService.schema.ts
new file mode 100644
index 0000000..eb74d9a
--- /dev/null
+++ b/src/domain/networkService.schema.ts
@@ -0,0 +1,451 @@
+// Request schemas
+import {RGB, TimeStamp} from "./common.schema";
+
+export interface GetInvitesReq {
+    networkId: string
+}
+
+export interface CreateNetworkReq {
+    userid: string
+    name: string
+    visibility: string
+    isImage: boolean
+    data: string | null
+    monogramLetter: string | null
+}
+
+export interface GetNetworksReq {
+    userid: string
+}
+
+export interface AcceptInviteReq {
+    userid: string
+    inviteId: string
+}
+
+export interface JoinPublicNetworkReq {
+    userid: string
+    networkId: string
+}
+
+export interface CreateCategoryReq {
+    name: string
+    description: string
+    userid: string
+    networkId: string
+}
+
+export interface DeleteCategoryReq {
+    categoryId: string
+    userid: string
+    networkId: string
+}
+
+export interface MoveCategoryReq {
+    from: number
+    to: number
+    userid: string
+    networkId: string
+}
+
+export interface LeaveNetworkReq {
+    networkId: string
+    userid: string
+}
+
+export interface DeleteNetworkReq {
+    networkId: string
+    userid: string
+}
+
+export interface CreateRankReq {
+    name: string
+    icon: string | null
+    colors: RGB
+    userid: string
+    networkId: string
+}
+
+export interface CreateInviteReq {
+    times: "once" | "unlimited"
+    userid: string
+    networkId: string
+}
+
+export interface MoveRankReq {
+    from: number
+    to: number
+    userid: string
+    networkId: string
+}
+
+export interface KickMemberReq {
+    memberId: string
+    userid: string
+    networkId: string
+}
+
+export interface BanMemberReq {
+    memberId: string
+    userid: string
+    networkId: string
+}
+
+export interface ModifyPermissionsReq {
+    permissionChanges: PermissionUpdate[]
+    rankId: string
+    userid: string
+    networkId: string
+}
+
+export interface OverwritePermissionReq {
+    permissionNumber: number
+    to: "block" | "grant" | "inherit"
+    rankId: string
+    categoryId: string
+    userid: string
+    networkId: string
+}
+
+export interface OverwriteChannelPermissionReq {
+    permissionNumber: number
+    to: "block" | "grant" | "inherit"
+    rankId: string
+    categoryId: string
+    userid: string
+    channelId: string
+    networkId: string
+}
+
+export interface GetOverwritesReq {
+    rankId: string
+    categoryId: string
+    userid: string
+    networkId: string
+}
+
+export interface GetChannelOverwritesReq {
+    rankId: string
+    categoryId: string
+    userid: string
+    networkId: string
+    channelId: string
+}
+
+export interface EditCategoryReq {
+    categoryId: string
+    name: string
+    desc: string
+    userid: string
+    networkId: string
+}
+
+export interface UnbanMemberReq {
+    memberId: string
+    userid: string
+    networkId: string
+}
+
+export interface GetBannedMembersReq {
+    userid: string
+    networkId: string
+}
+
+export interface DeleteRankReq {
+    rankId: string
+    userid: string
+    networkId: string
+}
+
+export interface EditRankReq {
+    name: string
+    icon: string | null
+    colors: RGB
+    userid: string
+    networkId: string
+    rankId: string
+}
+
+export interface DeleteRankReq {
+    userid: string
+    networkId: string
+    rankId: string
+}
+
+export interface EditChannelReq {
+    categoryId: string
+    channelId: string
+    name: string
+    desc: string
+    userid: string
+    networkId: string
+}
+
+export interface RemoveRankFromMemberReq {
+    targetUserId: string
+    rankId: string
+    userId: string
+    networkId: string
+}
+
+export interface AssignRankToMemberReq {
+    targetUserId: string
+    rankId: string
+    userId: string
+    networkId: string
+}
+
+export interface GetMemberReq {
+    userid: string
+    networkId: string
+}
+
+export interface UploadNewPictureReq {
+    picId: string
+    userid: string
+    networkId: string
+}
+
+export interface ChangeVisibilityReq {
+    to: "private" | "public"
+    userid: string
+    networkId: string
+}
+
+export interface EditNameReq {
+    name: string
+    userid: string
+    networkId: string
+}
+
+export interface CreateChannelReq {
+    name: string
+    description: string
+    type: "message" | "broadcast" | "voice"
+    categoryId: string
+    userid: string
+    networkId: string
+}
+
+export interface ToggleNetworkMuteReq {
+    userid: string
+    networkId: string
+}
+
+export interface ToggleCategoryMuteReq {
+    userid: string
+    networkId: string
+    categoryId: string
+}
+
+export interface ToggleChannelNetworkMuteReq {
+    userid: string
+    networkId: string
+    channelId: string
+}
+
+export interface JoinWebSocketRoomReq {
+    userid: string
+    connId: string
+    networkId: string
+}
+
+export interface GetFromInviteReq {
+    inviteId: string
+}
+
+// Types
+export interface PermissionUpdate {
+    granted: boolean
+    permissionNumber: number
+}
+
+export interface NetworkInvite {
+    inviteId: string
+    createdBy: string
+    created_at: TimeStamp
+    onetime: boolean
+    url: string
+}
+
+export interface Network {
+    networkId: string
+    name: string
+    visibility: string
+    createdBy: string
+    created_at: TimeStamp
+    picture: string
+    members: NetworkMember[]
+    bannedMembers: BannedMember[]
+    categories: NetworkCategory[]
+    invites: NetworkInvite[]
+    ranks: NetworkRank[]
+    permissions: number
+    isMuted: boolean
+}
+
+export interface NetworkMember {
+    userid: string
+    memberSince: TimeStamp
+}
+
+export interface BannedMember {
+    userid: string
+    since: TimeStamp
+}
+
+export interface NetworkCategory {
+    categoryId: string
+    createdAt: TimeStamp
+    name: string
+    createdBy: string
+    desc: string
+    channels: NetworkChannel[]
+    permissionOverwrites: PermissionOverwrite[]
+    permissions: number
+    isMuted: boolean
+}
+
+export interface NetworkChannel {
+    name: string
+    createdBy: string
+    desc: string
+    channelId: string
+    created_at: TimeStamp
+    type: "message" | "broadcast" | "voice"
+    permissionOverwrites: PermissionOverwrite[]
+    permissions: number
+    notifications: number
+    isMuted: boolean
+}
+
+export interface PermissionOverwrite {
+    rankId: string
+    overwrites: POW[]
+}
+
+export interface POW {
+    permissionNumber: number
+    to: "block" | "grant" | "inherit"
+}
+
+export interface NetworkRank {
+    rankId: string
+    name: string
+    color: RGB
+    icon: string
+    permissions: number
+    members: string[]
+    createdBy: string
+    createdAt: TimeStamp
+}
+
+export interface NetworkDiscovery {
+    name: string
+    picture: string
+    members: number
+    categories: number
+    channels: number
+    createdBy: string
+    networkId: string
+}
+
+// WebSocket payloads
+export interface WSCategoryDeletedPayload {
+    categoryId: string
+}
+
+export interface WSCategoryMovedPayload {
+    from: number
+    to: number
+}
+
+export interface WSMemberLeftPayload {
+    userid: string
+}
+
+export interface WSRankMovedPayload {
+    from: number
+    to: number
+}
+
+export interface WSKickedPayload {
+    networkId: string
+    name: string
+}
+
+export interface WSBannedPayload {
+    networkId: string
+    name: string
+}
+
+export interface WSModifiedPermissionsPayload {
+    userid: string
+    rankId: string
+    newRankPermissions: number
+    newPermissions: number
+}
+
+export interface WSOverwrittenPermissionPayload {
+    userid: string
+    rankId: string
+    overwritten: "channel" | "category"
+    newPermission: number
+    categoryId: string
+    channelId: string | null
+}
+
+export interface WSEditedCategoryPayload {
+    categoryId: string
+    name: string
+    desc: string
+}
+
+export interface WSRankRemovedPayload {
+    rankId: string
+}
+
+export interface WSRankEditedPayload {
+    rankId: string
+    name: string
+    color: RGB
+}
+
+export interface WSChannelRemovedPayload {
+    categoryId: string
+    channelId: string
+}
+
+export interface WSEditedChannelPayload {
+    categoryId: string
+    channelId: string
+    name: string
+    desc: string
+}
+
+export interface WSRankRemovedFromMemberPayload {
+    userid: string
+    rankId: string
+}
+
+export interface WSRankAssignedToMemberPayload {
+    userid: string
+    rankId: string
+}
+
+export interface WSNewNetworkPicPayload {
+    url: string
+}
+
+export interface WSNewVisibilityPayload {
+    visibility: string
+}
+
+export interface WSNewNamePayload {
+    name: string
+}
+
+export interface WSNewChannelPayload {
+    in: string
+    channel: NetworkChannel
+}
\ No newline at end of file
diff --git a/src/services/networkService.ts b/src/services/networkService.ts
new file mode 100644
index 0000000..20d0647
--- /dev/null
+++ b/src/services/networkService.ts
@@ -0,0 +1,4 @@
+export class NetworkService {
+    constructor(networkId: string) {
+    }
+}
\ No newline at end of file