initial commit.

middlewares/artifact_helpers.js

@@ -0,0 +1,22 @@
+'use strict';
+
+require('../models/schema');
+var config = require('config');
+
+module.exports = (req, res, next) => {
+  var artifactId = req.params.artifact_id;
+  Artifact.findOne({
+    "_id": artifactId
+  }, (err, artifact) => {
+    if (err) {
+      res.status(400).json(err);
+    } else {
+      if (artifact) {
+        req['artifact'] = artifact;
+        next();
+      } else {
+        res.sendStatus(404);
+      }
+    }
+  });
+};