add readable cron expressions

Author: jtomada

package.json

@@ -19,6 +19,7 @@
     "@types/bs58": "^4.0.1",
     "@types/isomorphic-fetch": "^0.0.35",
     "bs58": "^4.0.1",
+    "cronstrue": "^1.125.0",
     "dotenv": "^10.0.0",
     "isomorphic-fetch": "^3.0.0",
     "node-cron": "^3.0.0",

src/index.ts

@@ -2,13 +2,8 @@ import fetch from "isomorphic-fetch";
 import { Jupiter, TOKEN_LIST_URL } from "@jup-ag/core";
 import { PublicKey, Connection } from "@solana/web3.js";
 import * as cron from "node-cron";
-import {
-  ENV,
-  MINT_ADDRESSES,
-  SOLANA_RPC_ENDPOINT,
-  Token,
-  USER_KEYPAIR,
-} from "./constants";
+import cronstrue from "cronstrue";
+import {Token, MINT_ADDRESSES, USER_KEYPAIR, SOLANA_RPC_ENDPOINT} from "./constants";
 import { dcaconfig } from './dcaconfig'
 
 const jupiterSwap = async ({
@@ -100,7 +95,7 @@ const main = async () => {
 
     console.log("Scheduling swaps:");
     filteredJobs.map(job => {
-      console.log(`${job.amount} ${job.inputToken} -> ${job.outputToken}. cron: ${job.cron}`);
+      console.log(`${job.amount} ${job.inputToken} for ${job.outputToken} ${cronstrue.toString(job.cron)}`);
     });
 
     filteredJobs.forEach(job => {

yarn.lock

@@ -557,6 +557,11 @@ create-require@^1.1.0:
   resolved "https://registry.yarnpkg.com/create-require/-/create-require-1.1.1.tgz#c1d7e8f1e5f6cfc9ff65f9cd352d37348756c333"
   integrity sha512-dcKFX3jn0MpIaXjisoRvexIJVEKzaq7z2rZKxf+MSr9TkdmHmsU4m2lcLojrj/FHl8mk5VxMmYA+ftRkP/3oKQ==
 
+cronstrue@^1.125.0:
+  version "1.125.0"
+  resolved "https://registry.yarnpkg.com/cronstrue/-/cronstrue-1.125.0.tgz#8030816d033d00caade9b2a9f9b71e69175bcf42"
+  integrity sha512-qkC5mVbVGuuyBVXmam5anaRtbLcgfBUKajoyZqCdf/XBdgF43PsLSEm8eEi2dsI3YbqDPbLSH2mWNzM1dVqHgQ==
+
 cross-fetch@3.0.6:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/cross-fetch/-/cross-fetch-3.0.6.tgz#3a4040bc8941e653e0e9cf17f29ebcd177d3365c"