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https://github.com/cerc-io/watcher-ts
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21 lines
1.2 KiB
Markdown
21 lines
1.2 KiB
Markdown
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# Watchers Directory
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Here contains all the publicly available watchers for your experimenting purposes. For general information on setting up the stack and the CLI commands used to interact with watchers, see the [docs](/docs) directory.
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## Customizing Watchers
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* Indexing on an event:
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* Edit the custom hook function `handleEvent` (triggered on an event) in [hooks.ts](./src/hooks.ts) to perform corresponding indexing using the `Indexer` object.
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* While using the indexer storage methods for indexing, pass `diff` as true if default state is desired to be generated using the state variables being indexed.
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* Generating state:
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* Edit the custom hook function `createInitialState` (triggered if the watcher passes the start block, checkpoint: `true`) in [hooks.ts](./src/hooks.ts) to save an initial `State` using the `Indexer` object.
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* Edit the custom hook function `createStateDiff` (triggered on a block) in [hooks.ts](./src/hooks.ts) to save the state in a `diff` `State` using the `Indexer` object. The default state (if exists) is updated.
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* Edit the custom hook function `createStateCheckpoint` (triggered just before default and CLI checkpoint) in [hooks.ts](./src/hooks.ts) to save the state in a `checkpoint` `State` using the `Indexer` object.
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