Add .circleci/config.yml

.circleci/config.yml

@@ -1,42 +1,26 @@
+# Use the latest 2.1 version of CircleCI pipeline process engine.
+# See: https://circleci.com/docs/2.0/configuration-reference
 version: 2.1
 
-workflows:
-  version: 2
-  build:
-    jobs:
-      - build
-
+# Define a job to be invoked later in a workflow.
+# See: https://circleci.com/docs/2.0/configuration-reference/#jobs
 jobs:
-  build:
-    working_directory: ~/mern-starter
+  say-hello:
+    # Specify the execution environment. You can specify an image from Dockerhub or use one of our Convenience Images from CircleCI's Developer Hub.
+    # See: https://circleci.com/docs/2.0/configuration-reference/#docker-machine-macos-windows-executor
     docker:
-      - image: circleci/node:10.16.3
-      - image: mongo:4.2.0
+      - image: cimg/base:stable
+    # Add steps to the job
+    # See: https://circleci.com/docs/2.0/configuration-reference/#steps
     steps:
       - checkout
       - run:
-          name: update-npm
-          command: 'sudo npm install -g npm@5'
-      - restore_cache:
-          key: dependency-cache-{{ checksum "package-lock.json" }}
-      - run:
-          name: install-npm-wee
-          command: npm install
-      - save_cache:
-          key: dependency-cache-{{ checksum "package-lock.json" }}
-          paths:
-            - ./node_modules
-      - run:
-          name: test
-          command: npm test
-      - run:
-          name: code-coverage
-          command: './node_modules/.bin/nyc report --reporter=text-lcov'
-      - store_artifacts:
-          path: test-results.xml
-          prefix: tests
-      - store_artifacts:
-          path: coverage
-          prefix: coverage
-      - store_test_results:
-          path: test-results.xml
+          name: "Say hello"
+          command: "echo Hello, World!"
+
+# Invoke jobs via workflows
+# See: https://circleci.com/docs/2.0/configuration-reference/#workflows
+workflows:
+  say-hello-workflow:
+    jobs:
+      - say-hello

README.md

@@ -243,4 +243,4 @@ In development, after all scripts get loaded, react loads the CSS as BLOBs. That
 This warning is visible only on development and totally harmless. This occurs to hash difference in `react-router`. To solve it, react router docs asks you to use `match` function. If we use `match`, `react-hot-reloader` stops working.
 
 ## License
-MERN is released under the [MIT License](http://www.opensource.org/licenses/MIT).
+MERN is released under the [MIT License](http://www.opensource.org/licenses/MIT)...