ctx.data, ctx.params, ctx.route

ctx.data

A plain object shared by middleware, handlers and templates. It starts as {}. In templates it's also available as data.

// +middleware.js
module.exports = (ctx, next) => {
  ctx.data.user = ctx.auth
  return next()
}

// +page.js
module.exports = {
  load(ctx) {
    return { products: ctx.app.findAllRecords('products') }  // Object.assign'd into ctx.data
  },
}

<% for (const p of data.products) { %>
  <li><%= p.getString('name') %></li>
<% } %>

A handler's returned object is shallow-assigned into ctx.data. There is no deep merge.

ctx.params

Route parameters from [name] segments, as strings. Never includes query parameters (use ctx.req.query()). In templates it's also available as params.

<!-- pb_pages/[org]/[repo]/index.ejs, at /acme/web -->
<p><%= params.org %>/<%= params.repo %></p>  <!-- acme/web -->

ctx.route

{ path, name, file }: the route pattern, the page name and its file relative to pb_pages.

Page file	path	name
products/[id].ejs	/products/[id]	[id]
docs/index.md	/docs	index

A +page.js applies to every page in its folder; use ctx.route.name to tell them apart.