fix: loader report minimum number of signatures required (#535)

2019-10-22 15:16:12 -07:00
parent 227f161243
commit 81c2e8f9c1
3 changed files with 38 additions and 5 deletions
--- a/web3.js/src/loader.js
+++ b/web3.js/src/loader.js
@ -28,6 +28,16 @@ export class Loader {
    return PACKET_DATA_SIZE - 300;
  }

+  /**
+   * Minimum number of signatures required to load a program not including
+   * retries
+   *
+   * Can be used to calculate transaction fees
+   */
+  static getMinNumSignatures(dataLength: number): number {
+    return Math.ceil(dataLength / Loader.chunkSize);
+  }
+
  /**
   * Loads a generic program
   *