--- lang: en title: 'API docs: typeorm.typeormmixin' keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI sidebar: lb4_sidebar editurl: https://github.com/strongloop/loopback-next/tree/master/extensions/typeorm permalink: /doc/en/lb4/apidocs.typeorm.typeormmixin.html --- [Home](./index.md) > [@loopback/typeorm](./typeorm.md) > [TypeOrmMixin](./typeorm.typeormmixin.md) ## TypeOrmMixin() function Signature: ```typescript export declare function TypeOrmMixin>(superClass: T): { new (...args: any[]): { connectionManager: ConnectionManager; connection(connectionConfig: ConnectionOptions): loopbackContext.Binding; migrateSchema(): Promise; readonly options: loopbackContext.ApplicationConfig; readonly state: string; controller: (controllerCtor: loopbackContext.Constructor, nameOrOptions?: string | loopbackContext.BindingFromClassOptions | undefined) => loopbackContext.Binding; server: (ctor: loopbackContext.Constructor, nameOrOptions?: string | loopbackContext.BindingFromClassOptions | undefined) => loopbackContext.Binding; servers: (ctors: loopbackContext.Constructor[]) => loopbackContext.Binding[]; getServer: (target: string | loopbackContext.Constructor) => Promise; start: () => Promise; onStart: (fn: () => loopbackContext.ValueOrPromise) => loopbackContext.Binding; stop: () => Promise; onStop: (fn: () => loopbackContext.ValueOrPromise) => loopbackContext.Binding; component: (componentCtor: loopbackContext.Constructor, nameOrOptions?: string | loopbackContext.BindingFromClassOptions | undefined) => loopbackContext.Binding; setMetadata: (metadata: loopbackContext.ApplicationMetadata) => void; lifeCycleObserver: (ctor: loopbackContext.Constructor, nameOrOptions?: string | loopbackContext.BindingFromClassOptions | undefined) => loopbackContext.Binding; service: (cls: loopbackContext.ServiceOrProviderClass, nameOrOptions?: string | loopbackContext.ServiceOptions | undefined) => loopbackContext.Binding; interceptor: (interceptor: loopbackContext.Interceptor | loopbackContext.Constructor>, nameOrOptions?: string | loopbackContext.InterceptorBindingOptions | undefined) => loopbackContext.Binding; readonly name: string; readonly subscriptionManager: loopbackContext.ContextSubscriptionManager; scope: loopbackContext.BindingScope; readonly parent: loopbackContext.Context | undefined; emitEvent: (type: string, event: T_7) => void; emitError: (err: unknown) => void; bind: (key: loopbackContext.BindingAddress) => loopbackContext.Binding; add: (binding: loopbackContext.Binding) => loopbackContext.Application; configure: (key?: string | loopbackContext.BindingKey | undefined) => loopbackContext.Binding; getConfigAsValueOrPromise: (key: loopbackContext.BindingAddress, propertyPath?: string | undefined, resolutionOptions?: loopbackContext.ResolutionOptions | undefined) => loopbackContext.ValueOrPromise; getConfig: (key: loopbackContext.BindingAddress, propertyPath?: string | undefined, resolutionOptions?: loopbackContext.ResolutionOptions | undefined) => Promise; getConfigSync: (key: loopbackContext.BindingAddress, propertyPath?: string | undefined, resolutionOptions?: loopbackContext.ResolutionOptions | undefined) => ConfigValueType_3 | undefined; unbind: (key: loopbackContext.BindingAddress) => boolean; subscribe: (observer: loopbackContext.ContextEventObserver) => loopbackContext.Subscription; unsubscribe: (observer: loopbackContext.ContextEventObserver) => boolean; close: () => void; isSubscribed: (observer: loopbackContext.ContextObserver) => boolean; createView: (filter: loopbackContext.BindingFilter, comparator?: loopbackContext.BindingComparator | undefined) => loopbackContext.ContextView; contains: (key: loopbackContext.BindingAddress) => boolean; isBound: (key: loopbackContext.BindingAddress) => boolean; getOwnerContext: (keyOrBinding: string | loopbackContext.BindingKey | Readonly>) => loopbackContext.Context | undefined; getScopedContext: (scope: loopbackContext.BindingScope.APPLICATION | loopbackContext.BindingScope.SERVER | loopbackContext.BindingScope.REQUEST) => loopbackContext.Context | undefined; getResolutionContext: (binding: Readonly>) => loopbackContext.Context | undefined; isVisibleTo: (ctx: loopbackContext.Context) => boolean; find: (pattern?: string | RegExp | loopbackContext.BindingFilter | undefined) => Readonly>[]; findByTag: (tagFilter: string | RegExp | Record) => Readonly>[]; get: { (keyWithPath: loopbackContext.BindingAddress, session?: loopbackContext.ResolutionSession | undefined): Promise; (keyWithPath: loopbackContext.BindingAddress, options: loopbackContext.ResolutionOptions): Promise; }; getSync: { (keyWithPath: loopbackContext.BindingAddress, session?: loopbackContext.ResolutionSession | undefined): ValueType_5; (keyWithPath: loopbackContext.BindingAddress, options?: loopbackContext.ResolutionOptions | undefined): ValueType_6 | undefined; }; getBinding: { (key: loopbackContext.BindingAddress): loopbackContext.Binding; (key: loopbackContext.BindingAddress, options?: { optional?: boolean | undefined; } | undefined): loopbackContext.Binding | undefined; }; findOrCreateBinding: (key: loopbackContext.BindingAddress, policy?: loopbackContext.BindingCreationPolicy | undefined) => loopbackContext.Binding; getValueOrPromise: (keyWithPath: loopbackContext.BindingAddress, optionsOrSession?: loopbackContext.ResolutionOptions | loopbackContext.ResolutionSession | undefined) => loopbackContext.ValueOrPromise; toJSON: () => loopbackContext.JSONObject; inspect: (options?: loopbackContext.ContextInspectOptions | undefined) => loopbackContext.JSONObject; on: { (eventName: "bind" | "unbind", listener: loopbackContext.ContextEventListener): loopbackContext.Application; (event: string | symbol, listener: (...args: any[]) => void): loopbackContext.Application; }; once: { (eventName: "bind" | "unbind", listener: loopbackContext.ContextEventListener): loopbackContext.Application; (event: string | symbol, listener: (...args: any[]) => void): loopbackContext.Application; }; addListener: (event: string | symbol, listener: (...args: any[]) => void) => loopbackContext.Application; prependListener: (event: string | symbol, listener: (...args: any[]) => void) => loopbackContext.Application; prependOnceListener: (event: string | symbol, listener: (...args: any[]) => void) => loopbackContext.Application; removeListener: (event: string | symbol, listener: (...args: any[]) => void) => loopbackContext.Application; off: (event: string | symbol, listener: (...args: any[]) => void) => loopbackContext.Application; removeAllListeners: (event?: string | symbol | undefined) => loopbackContext.Application; setMaxListeners: (n: number) => loopbackContext.Application; getMaxListeners: () => number; listeners: (event: string | symbol) => Function[]; rawListeners: (event: string | symbol) => Function[]; emit: (event: string | symbol, ...args: any[]) => boolean; eventNames: () => (string | symbol)[]; listenerCount: (type: string | symbol) => number; }; } & T; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | superClass | T | | Returns: { new (...args: any\[\]): { connectionManager: ConnectionManager; connection(connectionConfig: ConnectionOptions): loopbackContext.[Binding](./context.binding.md)<Connection>; migrateSchema(): Promise<void>; readonly options: loopbackContext.[ApplicationConfig](./core.applicationconfig.md); readonly state: string; controller: <T\_1>(controllerCtor: loopbackContext.[Constructor](./context.constructor.md)<T\_1>, nameOrOptions?: string \| loopbackContext.[BindingFromClassOptions](./context.bindingfromclassoptions.md) \| undefined) => loopbackContext.[Binding](./context.binding.md)<T\_1>; server: <T\_2 extends loopbackContext.[Server](./core.server.md)>(ctor: loopbackContext.[Constructor](./context.constructor.md)<T\_2>, nameOrOptions?: string \| loopbackContext.[BindingFromClassOptions](./context.bindingfromclassoptions.md) \| undefined) => loopbackContext.[Binding](./context.binding.md)<T\_2>; servers: <T\_3 extends loopbackContext.[Server](./core.server.md)>(ctors: loopbackContext.[Constructor](./context.constructor.md)<T\_3>\[\]) => loopbackContext.[Binding](./context.binding.md)<any>\[\]; getServer: <T\_4 extends loopbackContext.[Server](./core.server.md)>(target: string \| loopbackContext.[Constructor](./context.constructor.md)<T\_4>) => Promise<T\_4>; start: () => Promise<void>; onStart: (fn: () => loopbackContext.[ValueOrPromise](./context.valueorpromise.md)<void>) => loopbackContext.[Binding](./context.binding.md)<loopbackContext.[LifeCycleObserver](./core.lifecycleobserver.md)>; stop: () => Promise<void>; onStop: (fn: () => loopbackContext.[ValueOrPromise](./context.valueorpromise.md)<void>) => loopbackContext.[Binding](./context.binding.md)<loopbackContext.[LifeCycleObserver](./core.lifecycleobserver.md)>; component: <T\_5 extends loopbackContext.[Component](./core.component.md) = loopbackContext.[Component](./core.component.md)>(componentCtor: loopbackContext.[Constructor](./context.constructor.md)<T\_5>, nameOrOptions?: string \| loopbackContext.[BindingFromClassOptions](./context.bindingfromclassoptions.md) \| undefined) => loopbackContext.[Binding](./context.binding.md)<T\_5>; setMetadata: (metadata: loopbackContext.[ApplicationMetadata](./core.applicationmetadata.md)) => void; lifeCycleObserver: <T\_6 extends loopbackContext.[LifeCycleObserver](./core.lifecycleobserver.md)>(ctor: loopbackContext.[Constructor](./context.constructor.md)<T\_6>, nameOrOptions?: string \| loopbackContext.[BindingFromClassOptions](./context.bindingfromclassoptions.md) \| undefined) => loopbackContext.[Binding](./context.binding.md)<T\_6>; service: <S>(cls: loopbackContext.[ServiceOrProviderClass](./core.serviceorproviderclass.md)<S>, nameOrOptions?: string \| loopbackContext.[ServiceOptions](./core.serviceoptions.md) \| undefined) => loopbackContext.[Binding](./context.binding.md)<S>; interceptor: (interceptor: loopbackContext.[Interceptor](./context.interceptor.md) \| loopbackContext.[Constructor](./context.constructor.md)<loopbackContext.[Provider](./context.provider.md)<loopbackContext.[Interceptor](./context.interceptor.md)>>, nameOrOptions?: string \| loopbackContext.[InterceptorBindingOptions](./context.interceptorbindingoptions.md) \| undefined) => loopbackContext.[Binding](./context.binding.md)<loopbackContext.[Interceptor](./context.interceptor.md)>; readonly name: string; readonly subscriptionManager: loopbackContext.[ContextSubscriptionManager](./context.contextsubscriptionmanager.md); scope: loopbackContext.[BindingScope](./context.bindingscope.md); readonly parent: loopbackContext.[Context](./context.context.md) \| undefined; emitEvent: <T\_7 extends loopbackContext.[ContextEvent](./context.contextevent.md)>(type: string, event: T\_7) => void; emitError: (err: unknown) => void; bind: <ValueType = any>(key: loopbackContext.[BindingAddress](./context.bindingaddress.md)<ValueType>) => loopbackContext.[Binding](./context.binding.md)<ValueType>; add: (binding: loopbackContext.[Binding](./context.binding.md)<unknown>) => loopbackContext.[Application](./core.application.md); configure: <ConfigValueType = any>(key?: string \| loopbackContext.[BindingKey](./context.bindingkey.md)<unknown> \| undefined) => loopbackContext.[Binding](./context.binding.md)<ConfigValueType>; getConfigAsValueOrPromise: <ConfigValueType\_1>(key: loopbackContext.[BindingAddress](./context.bindingaddress.md)<unknown>, propertyPath?: string \| undefined, resolutionOptions?: loopbackContext.[ResolutionOptions](./context.resolutionoptions.md) \| undefined) => loopbackContext.[ValueOrPromise](./context.valueorpromise.md)<ConfigValueType\_1 \| undefined>; getConfig: <ConfigValueType\_2>(key: loopbackContext.[BindingAddress](./context.bindingaddress.md)<unknown>, propertyPath?: string \| undefined, resolutionOptions?: loopbackContext.[ResolutionOptions](./context.resolutionoptions.md) \| undefined) => Promise<ConfigValueType\_2 \| undefined>; getConfigSync: <ConfigValueType\_3>(key: loopbackContext.[BindingAddress](./context.bindingaddress.md)<unknown>, propertyPath?: string \| undefined, resolutionOptions?: loopbackContext.[ResolutionOptions](./context.resolutionoptions.md) \| undefined) => ConfigValueType\_3 \| undefined; unbind: (key: loopbackContext.[BindingAddress](./context.bindingaddress.md)<unknown>) => boolean; subscribe: (observer: loopbackContext.[ContextEventObserver](./context.contexteventobserver.md)) => loopbackContext.[Subscription](./context.subscription.md); unsubscribe: (observer: loopbackContext.[ContextEventObserver](./context.contexteventobserver.md)) => boolean; close: () => void; isSubscribed: (observer: loopbackContext.[ContextObserver](./context.contextobserver.md)) => boolean; createView: <T\_8 = unknown>(filter: loopbackContext.[BindingFilter](./context.bindingfilter.md), comparator?: loopbackContext.[BindingComparator](./context.bindingcomparator.md) \| undefined) => loopbackContext.[ContextView](./context.contextview.md)<T\_8>; contains: (key: loopbackContext.[BindingAddress](./context.bindingaddress.md)<unknown>) => boolean; isBound: (key: loopbackContext.[BindingAddress](./context.bindingaddress.md)<unknown>) => boolean; getOwnerContext: (keyOrBinding: string \| loopbackContext.[BindingKey](./context.bindingkey.md)<unknown> \| Readonly<loopbackContext.[Binding](./context.binding.md)<unknown>>) => loopbackContext.[Context](./context.context.md) \| undefined; getScopedContext: (scope: loopbackContext.[BindingScope.APPLICATION](./context.bindingscope.application.md) \| loopbackContext.[BindingScope.SERVER](./context.bindingscope.server.md) \| loopbackContext.[BindingScope.REQUEST](./context.bindingscope.request.md)) => loopbackContext.[Context](./context.context.md) \| undefined; getResolutionContext: (binding: Readonly<loopbackContext.[Binding](./context.binding.md)<unknown>>) => loopbackContext.[Context](./context.context.md) \| undefined; isVisibleTo: (ctx: loopbackContext.[Context](./context.context.md)) => boolean; find: <ValueType\_1 = any>(pattern?: string \| RegExp \| loopbackContext.[BindingFilter](./context.bindingfilter.md) \| undefined) => Readonly<loopbackContext.[Binding](./context.binding.md)<ValueType\_1>>\[\]; findByTag: <ValueType\_2 = any>(tagFilter: string \| RegExp \| Record<string, any>) => Readonly<loopbackContext.[Binding](./context.binding.md)<ValueType\_2>>\[\]; get: { <ValueType\_3>(keyWithPath: loopbackContext.[BindingAddress](./context.bindingaddress.md)<ValueType\_3>, session?: loopbackContext.[ResolutionSession](./context.resolutionsession.md) \| undefined): Promise<ValueType\_3>; <ValueType\_4>(keyWithPath: loopbackContext.[BindingAddress](./context.bindingaddress.md)<ValueType\_4>, options: loopbackContext.[ResolutionOptions](./context.resolutionoptions.md)): Promise<ValueType\_4 \| undefined>; }; getSync: { <ValueType\_5>(keyWithPath: loopbackContext.[BindingAddress](./context.bindingaddress.md)<ValueType\_5>, session?: loopbackContext.[ResolutionSession](./context.resolutionsession.md) \| undefined): ValueType\_5; <ValueType\_6>(keyWithPath: loopbackContext.[BindingAddress](./context.bindingaddress.md)<ValueType\_6>, options?: loopbackContext.[ResolutionOptions](./context.resolutionoptions.md) \| undefined): ValueType\_6 \| undefined; }; getBinding: { <ValueType\_7 = any>(key: loopbackContext.[BindingAddress](./context.bindingaddress.md)<ValueType\_7>): loopbackContext.[Binding](./context.binding.md)<ValueType\_7>; <ValueType\_8>(key: loopbackContext.[BindingAddress](./context.bindingaddress.md)<ValueType\_8>, options?: { optional?: boolean \| undefined; } \| undefined): loopbackContext.[Binding](./context.binding.md)<ValueType\_8> \| undefined; }; findOrCreateBinding: <T\_9>(key: loopbackContext.[BindingAddress](./context.bindingaddress.md)<T\_9>, policy?: loopbackContext.[BindingCreationPolicy](./context.bindingcreationpolicy.md) \| undefined) => loopbackContext.[Binding](./context.binding.md)<T\_9>; getValueOrPromise: <ValueType\_9>(keyWithPath: loopbackContext.[BindingAddress](./context.bindingaddress.md)<ValueType\_9>, optionsOrSession?: loopbackContext.[ResolutionOptions](./context.resolutionoptions.md) \| loopbackContext.[ResolutionSession](./context.resolutionsession.md) \| undefined) => loopbackContext.[ValueOrPromise](./context.valueorpromise.md)<ValueType\_9 \| undefined>; toJSON: () => loopbackContext.[JSONObject](./context.jsonobject.md); inspect: (options?: loopbackContext.[ContextInspectOptions](./context.contextinspectoptions.md) \| undefined) => loopbackContext.[JSONObject](./context.jsonobject.md); on: { (eventName: "bind" \| "unbind", listener: loopbackContext.[ContextEventListener](./context.contexteventlistener.md)): loopbackContext.[Application](./core.application.md); (event: string \| symbol, listener: (...args: any\[\]) => void): loopbackContext.[Application](./core.application.md); }; once: { (eventName: "bind" \| "unbind", listener: loopbackContext.[ContextEventListener](./context.contexteventlistener.md)): loopbackContext.[Application](./core.application.md); (event: string \| symbol, listener: (...args: any\[\]) => void): loopbackContext.[Application](./core.application.md); }; addListener: (event: string \| symbol, listener: (...args: any\[\]) => void) => loopbackContext.[Application](./core.application.md); prependListener: (event: string \| symbol, listener: (...args: any\[\]) => void) => loopbackContext.[Application](./core.application.md); prependOnceListener: (event: string \| symbol, listener: (...args: any\[\]) => void) => loopbackContext.[Application](./core.application.md); removeListener: (event: string \| symbol, listener: (...args: any\[\]) => void) => loopbackContext.[Application](./core.application.md); off: (event: string \| symbol, listener: (...args: any\[\]) => void) => loopbackContext.[Application](./core.application.md); removeAllListeners: (event?: string \| symbol \| undefined) => loopbackContext.[Application](./core.application.md); setMaxListeners: (n: number) => loopbackContext.[Application](./core.application.md); getMaxListeners: () => number; listeners: (event: string \| symbol) => Function\[\]; rawListeners: (event: string \| symbol) => Function\[\]; emit: (event: string \| symbol, ...args: any\[\]) => boolean; eventNames: () => (string \| symbol)\[\]; listenerCount: (type: string \| symbol) => number; }; } & T