40 lines
1.1 KiB
TypeScript
40 lines
1.1 KiB
TypeScript
"use strict";
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export type TransportCreator = {
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create: () => Promise<Transport>;
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};
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let hidCache: Promise<typeof import("@ledgerhq/hw-transport-node-hid")> = null;
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const hidWrapper = Object.freeze({
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create: function(): Promise<Transport> {
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// Load the library if not loaded
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if (hidCache == null) {
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hidCache = new Promise((resolve, reject) => {
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try {
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let hid = require("@ledgerhq/hw-transport-node-hid");
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if (hid.create == null) { resolve(hid["default"]); }
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resolve(hid);
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} catch (error) {
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reject(error);
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}
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});
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/*
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hidCache = import("@ledgerhq/hw-transport-node-hid").then((hid) => {
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if (hid.create == null) { return hid["default"]; }
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return hid;
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});
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*/
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}
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return hidCache.then((hid) => {
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return hid.create()
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});
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}
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});
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export const transports: { [ name: string ]: TransportCreator } = Object.freeze({
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"hid": hidWrapper,
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"default": hidWrapper
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});
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