Test/init

.github/workflows/github-actions.yml

@@ -0,0 +1,25 @@
+name: Github Actions
+on:
+  push:
+  pull_request:
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: "14.x"
+      - name: Cache Node.js modules
+        uses: actions/cache@v2
+        with:
+          # npm cache files are stored in `~/.npm` on Linux/macOS
+          path: ~/.npm
+          key: ${{ runner.OS }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.OS }}-node-
+            ${{ runner.OS }}-
+      - run: npm ci
+      - run: npm run test

methods/matrix.js

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+const calcDeterminant = (req, res) => {
+  const matrix = JSON.parse(req.query.matrix)
+
+  const rows = matrix.length
+  const cols = matrix[0].length
+
+  if (rows !== cols) {
+    res.status(500).json({ message: "Row and column counts do not match" })
+  }
+
+  // can assume square matrix
+  if (rows == 2) {
+    const determinant =
+      matrix[0][0] * matrix[1][1] - matrix[0][1] * matrix[1][0]
+    res.json(determinant)
+  } else {
+    res.status(500).json({ message: "Unsupported" })
+  }
+}
+
+module.exports = { calcDeterminant }

methods/test.js

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+const test = (req, res) => {
+  res.send("API call successful")
+}
+
+module.exports = { test }