cerc-io/watcher-ts
11
1
Fork 0
mirror of https://github.com/cerc-io/watcher-ts synced 2026-09-11 10:14:07 +00:00
Code Issues Packages Projects Releases Wiki Activity

Implement ethereum ABI encode and decode in subgraph (#103)

Browse Source 
* Implement ethereum ABI encode in subgraph

* Implement ethereum ABI decoding host API

* Implement ABI encode decode for array type

* Implement ABI encode decode for bytes type
This commit is contained in:
nabarun
2021-12-30 13:12:32 +05:30
committed by GitHub
parent 9b1aa29afd
commit 8b913af93f
11 changed files with 306 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files
packages/graph-node/test/subgraph/example1/src/mapping.ts
+65 -1
View File
@@ -1,4 +1,4 @@
import { Address, log, BigInt, BigDecimal, ByteArray, dataSource, ethereum } from '@graphprotocol/graph-ts';
import { Address, log, BigInt, BigDecimal, ByteArray, dataSource, ethereum, Bytes } from '@graphprotocol/graph-ts';
import {
Example1,
@@ -440,3 +440,67 @@ export function testBigIntToHex (value: string): string[] {
return [res1, res2];
}
export function testEthereumEncode (): string {
const address = ethereum.Value.fromAddress(Address.fromString('0x0000000000000000000000000000000000000420'));
const bigInt1 = ethereum.Value.fromUnsignedBigInt(BigInt.fromI32(62));
const bigInt2 = ethereum.Value.fromUnsignedBigInt(BigInt.fromI32(63));
const bool = ethereum.Value.fromBoolean(true);
const bytes = ethereum.Value.fromFixedBytes(
Bytes.fromByteArray(
ByteArray.fromHexString('0x583bc7e1bc4799a225663353b82eb36d925399e6ef2799a6a95909f5ab8ac945')
)
);
const fixedSizedArray = ethereum.Value.fromFixedSizedArray([
bigInt1,
bigInt2
]);
const tupleArray: Array<ethereum.Value> = [
fixedSizedArray,
bool
];
const tuple = ethereum.Value.fromTuple(changetype<ethereum.Tuple>(tupleArray));
const token: Array<ethereum.Value> = [
address,
bytes,
tuple
];
const encoded = ethereum.encode(ethereum.Value.fromTuple(changetype<ethereum.Tuple>(token)))!;
log.debug('encoded: {}', [encoded.toHex()]);
return encoded.toHex();
}
export function testEthereumDecode (encoded: string): string[] {
const decoded = ethereum.decode('(address,bytes32,(uint256[2],bool))', Bytes.fromByteArray(ByteArray.fromHexString(encoded)));
const tupleValues = decoded!.toTuple();
const decodedAddress = tupleValues[0].toAddress();
const decodedBytes = tupleValues[1].toBytes();
const decodedTuple = tupleValues[2].toTuple();
const decodedFixedSizedArray = decodedTuple[0].toArray();
const decodedBigInt1 = decodedFixedSizedArray[0].toBigInt();
const decodedBigInt2 = decodedFixedSizedArray[1].toBigInt();
const decodedBool = decodedTuple[1].toBoolean();
log.debug('decoded address: {}', [decodedAddress.toHex()]);
log.debug('decoded bytes: {}', [decodedBytes.toHex()]);
log.debug('decoded bigInt1: {}', [decodedBigInt1.toString()]);
log.debug('decoded bigInt2: {}', [decodedBigInt2.toString()]);
log.debug('decoded bool: {}', [decodedBool.toString()]);
return [
decodedAddress.toHex(),
decodedBytes.toHex(),
decodedBigInt1.toString(),
decodedBigInt2.toString(),
decodedBool.toString()
];
}