make get_transactions place TXs in the staging folder

.gitignore

@@ -5,3 +5,4 @@ shell.nix
 .direnv
 blockfrost-mainnet.txt
 tests/reports/
+tests/serialization/staging

package.json

@@ -10,6 +10,7 @@
     "codegen": "tsx conway-cddl/codegen/main.ts",
     "generate-grammar-bundle": "npx ohm generateBundles -e -t tests/api/grammar.ohm",
     "generate-cdl-definitions": "make typedefs",
+    "get-transactions": "tsx tests/serialization/get_transactions.ts",
     "cleanup-compilation-artifacts": "make clean; npm run generate-grammar-bundle"
   },
   "author": "",

tests/serialization/get_transactions.ts

@@ -1,28 +1,29 @@
 import { BlockFrostAPI } from "@blockfrost/blockfrost-js";
 import fs from "node:fs";
 
-type TransactionInfo = { hash: string, cbor: string };
+const stagingPath = "tests/serialization/staging";
 
-// Hashes of txs to test
+// Hashes of txs to test. This is not normally used, but it can be handy for
+// retrieving specific transactions one might be interested in.
 const transactionHashes: Array<string> = [
-  'fd236cb770bf5ceb67ff9ec8478a8ae9ff9f0f84fc5db9cfec391528ac054459',
-  '469a2f934ef014b55181a1282cac0fe35d041bf7c298fdca9115aafa4ab1e506',
-  '0e5bc1e21e86d011f47ba2f406337e15cc8076b9c5fc0d7283e836de93bafeaf',
-  'f4e2cf9b0ca03b9e344c17ddd0e2c0520830bb56b00640ce6b40deab2f3463e0',
-  '4caa06fe5aa051124d58261962c88ab334136996ee1976723bae43e528bf40eb',
-  '85e695c228d27c480c74cb9114e44857d9f66ec7611750f5f568a7382942c9ef',
-  'b2c7b33c780ca6b4f8a7aef57b35c8c3afa066753e5c0b311e753cea98912026',
-  '433927e357e1ae76f35439650045ebe0ac7701023c708c41b5fb839a5dc5a51e',
-  'e72ff052f0eefb5f8d0736a896e12040ccbe090f5a2838cd2d02bb7f05eb07d9',
-  '24da9e4e230e9c12fd3adb9ecdef55cfd0318df8c7e3882cb0cd892acd74e1fb'
 ];
-// number of txs to retrieve if `transactionIds` is empty
+
+// Number of txs to retrieve if `transactionIds` is empty
 const transactionCount: number = 10;
 
 // Set up blockfrost API
 const projectId = fs.readFileSync("blockfrost-mainnet.txt", { encoding: "utf8" }).trimEnd();
 const bf = new BlockFrostAPI({ projectId: projectId, network: "mainnet" });
 
+// Create staging directory if it doesn't exist yet. If it exists, delete
+// all files in it.
+if (!fs.existsSync(stagingPath)) {
+  fs.mkdirSync(stagingPath);
+} else {
+  fs.rmSync(stagingPath, { "recursive": true, "force": true })
+  fs.mkdirSync(stagingPath);
+}
+
 async function main(): Promise<void> {
   console.log("(get_transactions) Starting");
   // transactions in hex
@@ -34,16 +35,12 @@ async function main(): Promise<void> {
       transactionsHex = await retrieveTxs();
   };
 
-  let fd = fs.openSync("transaction_fifo", "w");
   for (const [index, cbor] of transactionsHex.entries()) {
-    // type TransactionInfo = { hash: string, cbor: string };
-    const info: TransactionInfo = { hash: transactionHashes[index], cbor: cbor };
-    fs.writeSync(fd, `${JSON.stringify(info)}\n`);
+    fs.writeFileSync(`${stagingPath}/${index.toString().padStart(3, "0")}-${transactionHashes[index]}.cbor`, cbor);
   }
-  console.log("(get_transactions) Finished writing to FIFO. Closing it.")
-  fs.closeSync(fd);
-  console.log("(get_transactions) FIFO closed. Exiting.")
+  console.log("(get_transactions) Finished writing transactions to staging")
 }
+
 // Retrieve the required number of TXs from the latest blocks
 async function retrieveNewTxs(): Promise<Array<string>> {
   let latest_block = await bf.blocksLatest();