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30 lines
796 B
30 lines
796 B
// @flow
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import invariant from 'invariant'
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const core = require('@ledgerhq/ledger-core')
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let walletPoolInstance: ?Object = null
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let queue = Promise.resolve()
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// TODO: `core` and `NJSWalletPool` should be typed
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type Job<A> = (Object, Object) => Promise<A>
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export default function withLibcore<A>(job: Job<A>): Promise<A> {
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if (!walletPoolInstance) {
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walletPoolInstance = core.instanciateWalletPool({
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// sqlite files will be located in the app local data folder
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dbPath: process.env.LEDGER_LIVE_SQLITE_PATH,
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})
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}
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const walletPool = walletPoolInstance
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invariant(walletPool, 'core.instanciateWalletPool returned null !!')
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const p = queue.then(() => job(core, walletPool))
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queue = p.catch(e => {
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console.warn(`withLibCore: Error in job`, e)
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})
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return p
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}
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