Implement post Activity Streams

src/server/activitypub/index.ts

@@ -1,11 +1,13 @@
 import * as express from 'express';
 
+import post from './post';
 import user from './user';
 import inbox from './inbox';
 
 const app = express();
 app.disable('x-powered-by');
 
+app.use(post);
 app.use(user);
 app.use(inbox);