| 1 | // Copyright 2017-2018 @polkadot/api-provider authors & contributors
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| 2 | // This software may be modified and distributed under the terms
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| 3 | // of the ISC license. See the LICENSE file for details.
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| 4 |
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| 5 | import { MockState } from './types';
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| 6 |
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| 7 | export default async function unsubscribe (self: MockState, type: string, name: string, id: number): Promise<boolean> {
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| 8 | const method = self.subscriptionMap[id];
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| 9 |
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| 10 | self.l.debug(() => ['unsubscribe', id, method]);
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| 11 |
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| 12 | if (!method) {
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| 13 | throw new Error(`Unable to find subscription for ${id}`);
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| 14 | }
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| 15 |
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| 16 | delete self.subscriptionMap[id];
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| 17 | delete self.subscriptions[method].callbacks[id];
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| 18 |
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| 19 | return true;
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| 20 | }
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