mirror of
https://github.com/cerc-io/watcher-ts
synced 2024-10-03 22:44:39 +00:00
80 lines
2.7 KiB
TypeScript
80 lines
2.7 KiB
TypeScript
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//
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// Copyright 2021 Vulcanize, Inc.
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//
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import assert from 'assert';
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import BigInt from 'apollo-type-bigint';
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import debug from 'debug';
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import { ValueResult } from '@vulcanize/util';
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import { Indexer } from './indexer';
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import { EventWatcher } from './events';
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const log = debug('vulcanize:resolver');
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export const createResolvers = async (indexer: Indexer, eventWatcher: EventWatcher): Promise<any> => {
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assert(indexer);
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return {
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BigInt: new BigInt('bigInt'),
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Event: {
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__resolveType: (obj: any) => {
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assert(obj.__typename);
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return obj.__typename;
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}
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},
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Subscription: {
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onEvent: {
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subscribe: () => eventWatcher.getEventIterator()
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}
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},
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Mutation: {
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watchContract: (_: any, { contractAddress, startingBlock = 1 }: { contractAddress: string, startingBlock: number }): Promise<boolean> => {
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log('watchContract', contractAddress, startingBlock);
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return indexer.watchContract(contractAddress, startingBlock);
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}
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},
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Query: {
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getMethod: (_: any, { blockHash, contractAddress }: { blockHash: string, contractAddress: string }): Promise<ValueResult> => {
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log('getMethod', blockHash, contractAddress);
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return indexer.getMethod(blockHash, contractAddress);
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},
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_test: (_: any, { blockHash, contractAddress }: { blockHash: string, contractAddress: string }): Promise<ValueResult> => {
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log('_test', blockHash, contractAddress);
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return indexer._test(blockHash, contractAddress);
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},
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events: async (_: any, { blockHash, contractAddress, name }: { blockHash: string, contractAddress: string, name: string }) => {
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log('events', blockHash, contractAddress, name || '');
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const block = await indexer.getBlockProgress(blockHash);
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if (!block || !block.isComplete) {
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throw new Error(`Block hash ${blockHash} number ${block?.blockNumber} not processed yet`);
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}
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const events = await indexer.getEventsByFilter(blockHash, contractAddress, name);
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return events.map(event => indexer.getResultEvent(event));
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},
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eventsInRange: async (_: any, { fromBlockNumber, toBlockNumber }: { fromBlockNumber: number, toBlockNumber: number }) => {
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log('eventsInRange', fromBlockNumber, toBlockNumber);
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const { expected, actual } = await indexer.getProcessedBlockCountForRange(fromBlockNumber, toBlockNumber);
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if (expected !== actual) {
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throw new Error(`Range not available, expected ${expected}, got ${actual} blocks in range`);
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}
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const events = await indexer.getEventsInRange(fromBlockNumber, toBlockNumber);
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return events.map(event => indexer.getResultEvent(event));
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}
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}
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};
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};
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