Add src

src/gatsby-node.js

@@ -0,0 +1,34 @@
+import crypto from 'crypto'
+import Parser from 'rss-parser'
+
+const createContentDigest = obj =>
+  crypto
+    .createHash(`md5`)
+    .update(JSON.stringify(obj))
+    .digest(`hex`)
+
+exports.sourceNodes = async ({
+  actions,
+  createNodeId
+}, {
+  url,
+  name,
+}) => {
+  const { createNode } = actions
+  const parser = new Parser()
+
+  const feed = await parser.parseURL(url)
+  feed.items.forEach(item => {
+    const nodeId = createNodeId(item.link)
+    createNode({
+      ...item,
+      id: nodeId,
+      parent: null,
+      children: [],
+      internal: {
+        contentDigest: createContentDigest(item),
+        type: `Feed${name}`
+      }
+    })
+  })
+}