validate-json.yml

name: JSON_VALIDATION
on:
    pull_request:
        branches:
            - "*"        # matches every branch that doesn't contain a '/'
            - '*/*'       # matches every branch containing a single '/'
            - '**'
        types: ["opened", "edited", "reopened", "synchronize"]
jobs:
    validate:
        runs-on: ubuntu-latest
        steps:
            - uses: actions/checkout@v2
            - name: Cache node modules
              uses: actions/cache@v2
              env:
                  cache-name: cache-node-modules
              with:
                  # npm cache files are stored in `~/.npm` on Linux/macOS
                  path: ~/.npm
                  key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
                  restore-keys: |
                      ${{ runner.os }}-build-${{ env.cache-name }}-
                      ${{ runner.os }}-build-
                      ${{ runner.os }}-
            - name: npm install
              run: |
                  npm i
            - name: Validate JSON
              run: |
                  npm start