Implement support for getting and parsing blocks and transactions

1 files changed, 39 insertions, 0 deletions

diff --git a/packages/pipeline/src/parsers/web3/index.ts b/packages/pipeline/src/parsers/web3/index.ts
new file mode 100644
index 000000000..c6647c966
--- /dev/null
+++ b/packages/pipeline/src/parsers/web3/index.ts
@@ -0,0 +1,39 @@
+import { BlockWithoutTransactionData, Transaction as EthTransaction } from 'ethereum-types';
+
+import { Block } from '../../entities/Block';
+import { Transaction } from '../../entities/Transaction';
+
+export function parseBlock(rawBlock: BlockWithoutTransactionData): Block {
+    if (rawBlock.hash == null) {
+        throw new Error('Tried to parse raw block but hash was null');
+    }
+    if (rawBlock.number == null) {
+        throw new Error('Tried to parse raw block but number was null');
+    }
+
+    const block = new Block();
+    block.hash = rawBlock.hash;
+    block.number = rawBlock.number;
+    block.unixTimestampSeconds = rawBlock.timestamp;
+    return block;
+}
+
+export function parseTransaction(rawTransaction: EthTransaction): Transaction {
+    if (rawTransaction.blockHash == null) {
+        throw new Error('Tried to parse raw transaction but blockHash was null');
+    }
+    if (rawTransaction.blockNumber == null) {
+        throw new Error('Tried to parse raw transaction but blockNumber was null');
+    }
+
+    const tx = new Transaction();
+    tx.transactionHash = rawTransaction.hash;
+    tx.blockHash = rawTransaction.blockHash;
+    tx.blockNumber = rawTransaction.blockNumber;
+
+    tx.gasUsed = rawTransaction.gas;
+    // TODO(albrow) figure out bignum solution.
+    tx.gasPrice = rawTransaction.gasPrice.toNumber();
+
+    return tx;
+}