41 lines
1.1 KiB
Racket
41 lines
1.1 KiB
Racket
#lang web-server/insta
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;; A blog is a (listof post)
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;; and a post is a (make-post title body)
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(struct post (title body))
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;; BLOG: blog
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;; The static blog.
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(define BLOG
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(list (post "First Post" "This is my first post")
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(post "Second Post" "This is another post")))
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;; start: request -> response
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;; Consumes a request, and produces a page that displays all of the
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;; web content.
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(define (start request)
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(render-blog-page BLOG request))
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;; render-blog-page: blog request -> response
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;; Consumes a blog and a request, and produces an HTML page
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;; of the content of the blog.
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(define (render-blog-page a-blog request)
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(response/xexpr
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`(html (head (title "My Blog"))
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(body (h1 "My Blog")
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,(render-posts a-blog)))))
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;; render-post: post -> xexpr
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;; Consumes a post, produces an xexpr fragment of the post.
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(define (render-post a-post)
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`(div ((class "post"))
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,(post-title a-post)
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(p ,(post-body a-post))))
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;; render-posts: blog -> xexpr
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;; Consumes a blog, produces an xexpr fragment
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;; of all its posts.
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(define (render-posts a-blog)
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`(div ((class "posts"))
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,@(map render-post a-blog)))
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