jacobobryant

(ns com.biffweb.impl.index
  (:require [taoensso.nippy :as nippy])
  (:import java.util.Map
           java.util.HashMap
           java.util.function.Function
           (java.io Closeable File)
           (java.nio.file Files Path)
           java.nio.file.attribute.FileAttribute
           (org.rocksdb BlockBasedTableConfig Checkpoint CompressionType FlushOptions LRUCache
                        DBOptions Options ReadOptions RocksDB RocksIterator

jacobobryant

(defattr newsletter-subs :user/email-subscriptions [:vector :biff.attr/ref]
  {:biff.attr/input [:xt/id]
   :biff.attr/output [{:user/email-subscriptions [:sub/user
                                                  :sub/newsletter
                                                  :sub/kind
                                                  :sub/unread
                                                  :sub/last-published
                                                  :sub/pinned
                                                  :sub/total
                                                  :sub/read]}]}

jacobobryant

Adding fields to the signup form is more complex than just setting a custom :biff.auth/new-user-tx function because both authentication flows (email link and six-digit code) include multiple requests (e.g. in the email link flow, first you submit a form with your email address, then you click a link), and new-user-tx doesn't get called until the last request. So we have to modify the auth flows to take the extra form params from the first request and propagate them so that new-user-tx has access to them.

Below is a diff of the starter app showing exactly how to do that. First, you'll need to copy over the authentication module code into your project, as demonstrated in step 4 of the Postgres howto. Then apply the changes in the diff below to your auth.clj file. Remove the com.biffweb.impl.* namespaces and use a single [com.biffweb :as biff] require instead.

jacobobryant

These are some examples of using the Stripe API in a Clojure/Biff app, taken verbatim from Yakread. For more details, see the Stripe documentation. For the most part I recommend using the REST API directly rather than going through the Java SDK.

Yakread has an advertising page that lets you connect a credit card via Stripe checkout. The card is charged later, after your advertisement has run.

Here's some of the code for the advertising page:

jacobobryant

call plug#begin()

function! DoRemote(arg)
  UpdateRemotePlugins
endfunction

Plug 'tpope/vim-sexp-mappings-for-regular-people'
Plug 'guns/vim-sexp'
Plug 'tpope/vim-repeat'
Plug 'tpope/vim-surround'

jacobobryant

Put this in .dir-locals.el:

((nil . ((cider-preferred-build-tool . babashka)
         (cider-babashka-parameters . "dev"))))

jacobobryant

Thanks to @olavfosse for writing this up:

---

The logging architecture of our aplication looks like this. The leftmost nodes are user-facing logging APIs. They all hand their logs over to slf4j, which in turns hand them over to slf4j-simple, which prints them.

clojure.tools.logging -\

jacobobryant

// This assumes you have an element like <div id="post-content" data-contents="..."></div>,
// where data-contents has the html you'd like to render. Then call renderPost().

function $(selector) {
  return document.querySelector(selector);
}

function renderPost() {
  let element = $("#post-content");
  let html = element.getAttribute('data-contents');

jacobobryant

How to add a toggle button for dark mode with Biff and Tailwind

By default, Tailwind's dark mode classes will take effect automatically if the user's operating system is already set to dark mode. Follow these instructions if you would also like to provide a toggle button so the user can override the operating system setting.

Set darkMode: 'class' in tailwind.config.js:

jacobobryant

{:deps {clj-http/clj-http {:mvn/version "3.12.3"}
        org.jsoup/jsoup   {:mvn/version "1.11.3"}}}