Web: a JSON route

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use web

fn health[req]
    return json[map[status = 'ok']]

route['/health', health]
serve[3000]

route[path, handler] registers a plain HTTP handler — a function that receives the request and returns a response; page[path, view] registers a live page (chapter 12). Responses come from json, html, text, respond[status, body], and redirect[url]. The handler is handed the request: req.params holds the path's :names, req.query the query string's values, req.body the body, and req.method, req.path and req.headers the rest; route['/items', 'POST', add] answers a method other than GET.

Reference: spec section 13 (web) and book chapter 12.