feat: transpile .ts imports

handlers/importHandler.js

@@ -1,18 +1,24 @@
 const fs = require('fs');
 const path = require('path');
+const ts = require('typescript');
 
 module.exports = function importHandler(value, context, request) {
-    if (!/^#import/m.test(value)) return value;
+  if (!/^#import/m.test(value)) return value;
 
-    return value
-      .replace(/^#import (.*);/m, function (includeStatement, file) {
-          const importThisFile = file.replace(/['"]/g, '');
-          const content = fs.readFileSync(path.join(context, importThisFile));
-          if (importThisFile.endsWith('.js')) {
-              return JSON.stringify(eval(content.toString()));
-          } else {
-              return content;
-          }
-      })
-      .replace(/\r\n?/g, '\n');
-}
+  return value
+    .replace(/^#import (.*);/m, function (includeStatement, file) {
+      const importThisFile = file.replace(/['"]/g, '');
+      const content = fs.readFileSync(path.join(context, importThisFile));
+      if (importThisFile.endsWith('.ts')) {
+        const { outputText } = ts.transpileModule(content.toString(), {
+          compilerOptions: { module: ts.ModuleKind.CommonJS },
+        });
+        return JSON.stringify(eval(outputText));
+      } else if (importThisFile.endsWith('.js')) {
+        return JSON.stringify(eval(content.toString()));
+      } else {
+        return content;
+      }
+    })
+    .replace(/\r\n?/g, '\n');
+};

package.json

@@ -33,6 +33,7 @@
     "colors": "^1.3.2",
     "header-case-normalizer": "^1.0.3",
     "js-combinatorics": "^0.5.0",
+    "typescript": "^4.0.2",
     "yargs": "^12.0.1"
   },
   "devDependencies": {

test/mocks/importts/GET.mock

@@ -0,0 +1,4 @@
+HTTP/1.1 200 OK
+Content-Type: application/json
+
+#import './script.ts';

test/mocks/importts/script.ts

@@ -0,0 +1,5 @@
+const dateResponse = {
+  date: new Date(),
+};
+
+export default dateResponse;