Building nested comments and likes without a front-end framework

Discussion features do not require a large client application. Standard forms and redirects remain dependable with JavaScript disabled.

Store the relationship

Each comment keeps a post slug and optional parent identifier. Rendering starts at root comments and walks children with a maximum depth to protect the page.

Make likes idempotent

Store one reaction per visitor and target, then toggle it. The displayed counter is updated with the reaction so repeated clicks do not create unlimited likes.

Protect every write

Use CSRF tokens, input length limits, escaped output and rate limiting. Moderation and abuse reporting are the next requirements for an open public launch.