Mark the package side-effect free and export package.json

Author: laurentpellegrino

package.json

@@ -16,8 +16,10 @@
                 "types": "./dist/index.d.ts",
                 "default": "./dist/index.js"
             }
-        }
+        },
+        "./package.json": "./package.json"
     },
+    "sideEffects": false,
     "homepage": "https://ipregistry.co",
     "license": "Apache-2.0",
     "keywords": [

test/packaging.test.ts

@@ -50,6 +50,11 @@ describe('package exports', () => {
         expect(rootExport.require.types).to.match(/\.d\.ts$/)
     })
 
+    it('exposes package.json and declares the package side-effect free', () => {
+        expect(packageJson.exports['./package.json']).to.equal('./package.json')
+        expect(packageJson.sideEffects).to.be.false
+    })
+
     it('only references files that the build produces', () => {
         for (const path of collectPaths(packageJson.exports)) {
             const resolved = fileURLToPath(