cerc-io/watcher-ts
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Implement remaining graph-node host APIs for templates (#475)

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* Implement createWithContext graph-node dataSource host API

* Parse individual context entries

* Implement graph-node dataSource context host API

* Handle array type fields and refactor code

* Resolve all values when parsing an array field

* Fix wasm entity creation with array type fields

* Required codegen changes
This commit is contained in:
prathamesh0
2023-11-20 15:02:08 +05:30
committed by GitHub
parent c2070a80cb
commit 2faf905d99
11 changed files with 155 additions and 57 deletions
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packages/graph-node/src/loader.ts
+20 -4
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@@ -101,7 +101,7 @@ export const instantiate = async (
const dbEntity = await database.saveEntity(entityName, dbData);
database.cacheUpdatedEntityByName(entityName, dbEntity);
// Update the in-memory subgraph state enabled
// Update the in-memory subgraph state if enabled
if (indexer.serverConfig.enableState) {
// Prepare diff data for the entity update
assert(indexer.getRelationsMap);
@@ -698,10 +698,14 @@ export const instantiate = async (
return Address.fromString(addressStringPtr);
},
'dataSource.context': async () => {
// TODO: Implement use in data source templates.
// https://thegraph.com/docs/en/developer/create-subgraph-hosted/#data-source-context
assert(context.contractAddress);
const contract = indexer.isWatchedContract(context.contractAddress);
return Entity.__new();
if (!contract) {
return null;
}
return database.toGraphContext(instanceExports, contract.context);
},
'dataSource.network': async () => {
assert(dataSource);
@@ -715,6 +719,18 @@ export const instantiate = async (
assert(indexer.watchContract);
assert(context.block);
await indexer.watchContract(utils.getAddress(addressString), contractKind, true, Number(context.block.blockNumber));
},
'dataSource.createWithContext': async (name: number, params: number, dataSourceContext: number) => {
const [addressStringPtr] = __getArray(params);
const addressString = __getString(addressStringPtr);
const contractKind = __getString(name);
const contextInstance = await Entity.wrap(dataSourceContext);
const dbData = await database.fromGraphContext(instanceExports, contextInstance);
assert(indexer.watchContract);
assert(context.block);
await indexer.watchContract(utils.getAddress(addressString), contractKind, true, Number(context.block.blockNumber), dbData);
}
},
json: {