1 files changed, 35 insertions, 0 deletions
diff --git a/src/hooks/process-post.js b/src/hooks/process-post.js
new file mode 100644
index 0000000..d23f451
--- /dev/null
+++ b/src/hooks/process-post.js
@@ -0,0 +1,35 @@
+// Use this hook to manipulate incoming or outgoing data.
+// For more information on hooks see: http://docs.feathersjs.com/api/hooks.html
+
+// eslint-disable-next-line no-unused-vars
+module.exports = function (options = {}) {
+  return async context => {
+    return async context => {
+      const {data} = context;
+
+      // Throw an error if we didn't get a text
+      if (!data.text) {
+        throw new Error('A post must have a text');
+      }
+
+      // The authenticated user
+      const user = context.params.user;
+      // The actual message text
+      const text = context.data.text
+      // Posts can't be longer than 400 characters
+        .substring(0, 400);
+
+      // Override the original data (so that people can't submit additional stuff)
+      context.data = {
+        text,
+        // Set the user id
+        userId: user._id,
+        // Add the current date
+        createdAt: new Date().getTime()
+      };
+
+      // Best practise, hooks should always return the context
+      return context;
+    };
+  };
+};