Fixes #1 Allow for multiple artifacts

lib/Artifact.js

@@ -0,0 +1,18 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const path_1 = require("path");
+const fs_1 = require("fs");
+class Artifact {
+    constructor(path, contentType = "raw") {
+        this.path = path;
+        this.name = path_1.basename(path);
+        this.contentType = contentType;
+    }
+    get contentLength() {
+        return fs_1.statSync(this.path).size;
+    }
+    readFile() {
+        return fs_1.readFileSync(this.path);
+    }
+}
+exports.Artifact = Artifact;