@emeraldpay/api/lib/Channel.d.ts

Common code for Emerald gRPC APIs

import { Publisher, RemoteCall } from './index';
export declare enum ConnectionStatus {
    PENDING = 0,
    CONNECTING = 1,
    CONNECTED = 2,
    ERRORED = 3,
    CLOSED = 4
}
export declare enum ConnectivityState {
    IDLE = 0,
    CONNECTING = 1,
    READY = 2,
    TRANSIENT_FAILURE = 3,
    SHUTDOWN = 4
}
export type ConnectionListener = (status: ConnectionStatus) => void;
export type StateListener = (error: Error | undefined, state: ConnectivityState) => void;
export declare function asStatus(state: ConnectivityState | number): ConnectionStatus;
export interface Channel {
    getState(): ConnectivityState;
    watch(current: ConnectivityState, deadline: number, handler: StateListener): any;
}
export declare function isChannel(channel: unknown): channel is Channel;
export declare function alwaysRetry<T, R>(channel: Channel, call: RemoteCall<R, T>, request: R, retries: number): Publisher<T>;
export declare function readOnce<T, R>(channel: Channel, call: RemoteCall<R, T>, request: R, retries: number): Publisher<T>;
export declare function asStateListener(listener: ConnectionListener): StateListener;