Moved contents of seasoned_api up to root folder

src/request/utils.js

@@ -0,0 +1,34 @@
+// TODO : test title and date are valid matches to columns in the database
+const validSortParams = ['title', 'date']
+const validSortDirs = ['asc', 'desc']
+const validFilterParams = ['movie', 'show', 'seeding', 'downloading', 'paused', 'finished', 'downloaded']
+
+function validSort(by, direction) {
+  return new Promise((resolve, reject) => {
+    if (by === undefined) {
+      resolve()
+    }
+
+    if (validSortParams.includes(by) && validSortDirs.includes(direction)) {
+      resolve()
+    } else {
+      reject(new Error(`invalid sort parameter, must be of: ${validSortParams} with optional sort directions: ${validSortDirs} appended with ':'`))
+    }
+  });
+}
+
+function validFilter(filter_param) {
+  return new Promise((resolve, reject) => {
+     if (filter_param === undefined) {
+      resolve()
+    }
+
+    if (filter_param && validFilterParams.includes(filter_param)) {
+      resolve()
+    } else {
+      reject(new Error(`filter parameteres must be of type: ${validFilterParams}`))
+    }
+  });
+}
+
+module.exports = { validSort, validFilter }