fix: decrease bundle size of tgz (#791)

* fix: decrease bundle size of tgz

* add line

* spelling

.npmignore

@@ -1,5 +1,12 @@
-*.ts
-/src
-/config
-Dockerfile
-docker-compose.yml
+# NOTE: We use .npmignore instead of the `files` field in the package.json so we  
+# can ignore specific test helper directories
+
+# Ignore all directories 
+/*
+
+# Unignore the build directory
+!/build
+
+# Ignore specific paths within the build directory
+/build/src/test-helpers
+/build/src/services/test-helpers

package.json

@@ -22,9 +22,6 @@
   "bugs": {
     "url": "https://github.com/paritytech/substrate-api-sidecar/issues"
   },
-  "files": [
-    "build"
-  ],
   "scripts": {
     "build": "substrate-exec-rimraf build/ && substrate-exec-tsc && echo Build Finished",
     "build:calc": "bash ./calc/build.sh",