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GetHistoryForKey added to the chaincode-typescript

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This commit is contained in:
Ajith S 2024-06-19 15:02:07 +05:30
parent 179bc96846
commit cd9fa373ad
1 changed files with 29 additions and 0 deletions
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29
asset-transfer-basic/chaincode-typescript/src/assetTransfer.ts
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@ -170,4 +170,33 @@ export class AssetTransferContract extends Contract {
return JSON.stringify(allResults);
}
// GetHistoryForKey returns all assets history in the world state.
@Transaction(false)
@Returns("string")
public async GetHistoryForKey(ctx: Context, id: string): Promise<string> {
const results: string[] = [];
try {
const historyIterator = await ctx.stub.getHistoryForKey(id);
let result = await historyIterator.next();
if (result.done) {
const errorMessage = `Asset ${id} does not exist`;
console.log(errorMessage);
throw new Error(errorMessage);
}
while (!result.done) {
const iteratorValue = Buffer.from(
result.value.value.toString()
).toString("utf8");
results.push(iteratorValue);
console.log(iteratorValue);
result = await historyIterator.next();
}
await historyIterator.close();
} catch (error) {
console.log(error);
}
return JSON.stringify(results);
}
}