Adds plugin for Contentful synchronization (#75)

Adds plugin for Contentful

Will create product and product variants in Contentful, when created in Medusa

Closes #47

packages/medusa-plugin-contentful/src/api/index.js

@@ -0,0 +1,10 @@
+import { Router } from "express"
+import hooks from "./routes/hooks"
+
+export default (container) => {
+  const app = Router()
+
+  hooks(app)
+
+  return app
+}

packages/medusa-plugin-contentful/src/api/middlewares/await-middleware.js

@@ -0,0 +1 @@
+export default (fn) => (...args) => fn(...args).catch(args[2])

packages/medusa-plugin-contentful/src/api/middlewares/index.js

@@ -0,0 +1,5 @@
+import { default as wrap } from "./await-middleware"
+
+export default {
+  wrap,
+}

packages/medusa-plugin-contentful/src/api/routes/contentful.js

@@ -0,0 +1,25 @@
+export default async (req, res) => {
+  try {
+    const contentfulService = req.scope.resolve("contentfulService")
+
+    const contentfulType = req.body.contentType.sys.id
+
+    let updated = {}
+    switch (contentfulType) {
+      case "product":
+        updated = await contentfulService.sendContentfulProductToAdmin(req.body)
+        break
+      case "productVariant":
+        updated = await contentfulService.sendContentfulProductVariantToAdmin(
+          req.body
+        )
+        break
+      default:
+        break
+    }
+
+    res.status(200).send(updated)
+  } catch (error) {
+    res.status(400).send(`Webhook error: ${error.message}`)
+  }
+}

packages/medusa-plugin-contentful/src/api/routes/index.js

@@ -0,0 +1,13 @@
+import { Router } from "express"
+import bodyParser from "body-parser"
+import middlewares from "../../middlewares"
+
+const route = Router()
+
+export default (app) => {
+  app.use("/hooks", route)
+
+  route.post("/contentful", middlewares.wrap(require("./contentful").default))
+
+  return app
+}