add collections

frontend/app/Api.hs

@@ -2,6 +2,7 @@
 
 module Api
   ( fetchCollections,
+    createCollection,
     fetchSchema,
     fetchSchemaVersion,
     fetchPosts,
@@ -33,6 +34,15 @@ fetchCollections :: JSM (Either String [String])
 fetchCollections =
   A.eitherDecode <$> fetch (fromString "http://localhost:8081/collections")
 
+createCollection :: String -> JSM (Either String ())
+createCollection collection =
+  A.eitherDecode
+    <$> fetch
+      ( fromString "http://localhost:8081/collections"
+          & setRequestMethod "POST"
+          & setRequestBodyLBS (A.encode (A.toJSON collection))
+      )
+
 fetchSchemaVersion :: JSM (Either String Version)
 fetchSchemaVersion =
   A.eitherDecode <$> fetch (fromString "http://localhost:8081/schemaVersion")