DefinitelyTyped/types/lightship/index.d.ts
2019-04-09 14:47:43 -04:00

44 lines
2.0 KiB
TypeScript

// Type definitions for lightship 3.0
// Project: https://github.com/gajus/lightship#readme
// Definitions by: Scott Chang <https://github.com/purmac>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
/// <reference types="node" />
/**
* A teardown function called when shutdown is initialized.
* @param userConfiguration User configuration object
*/
export function createLightship(userConfiguration?: UserConfigurationType): LightshipType;
export interface UserConfigurationType {
/* Run Iapetus only if service is detected ro be running in Kubernetes. Default: true. */
detectKubernetes?: boolean;
/* The port on which the Lightship service listens. This port must be different than your main service port, if any. The default port is 9000.*/
port?: number;
/* An a array of [signal events]{@link https://nodejs.org/api/process.html#process_signal_events}. Default: [SIGTERM]. */
signals?: ReadonlyArray<NodeJS.Signals>;
/* A number of milliseconds before force full termination. Default: 60000. */
timeout?: number;
}
export interface LightshipType {
/* Checks if server is in SERVER_IS_READY state */
isServerReady: () => boolean;
/* Checks if server is in SERVER_IS_SHUTTING_DOWN state */
isServerShuttingDown: () => boolean;
/**
* Registers teardown functions that are called when shutdown is initialized.
* All registered shutdown handlers are executed in the order they have been registered.
* After all shutdown handlers have been executed, Lightship asks `process.exit()` to terminate the process synchronously.
*/
registerShutdownHandler: (shutdownHandler: ShutdownHandlerType) => void;
/* Changes server state to SERVER_IS_SHUTTING_DOWN and initialises the shutdown of the application.*/
shutdown: () => Promise<void>;
/* Changes server state to SERVER_IS_NOT_READY. */
signalNotReady: () => void;
/* Changes server state to SERVER_IS_READY. */
signalReady: () => void;
}
export type ShutdownHandlerType = () => Promise<void> | void;