omtet

Your new project at http://localhost:3000

Username: [email protected]
Password: admin

Usage

1. Run lein joplin migrate sql-dev-env in the newly created project (This will add an admin user with username: [email protected] and password: admin to a new database)
2. Run lein cljx once to compile the cljx files
3. Run lein repl and then (start-dev-system) to run the application in dev mode. This will also compile the clojurescript.
4. Run lein rel-jar to generate a runnable jar file.

Features

• closp-crud integration
• H2 database on filesystem as a default
• Joplin for database migrations
• Selmer as templating solution
• http-kit as a server
• cljx support
• Figwheel with clojurescript live reloading
• Reloading support for templates and clojure code
• Configuration with nomad
• User management with login/logout/registration with email activation (provided by postal)
• Authentication provided by buddy
• reagent and datascript on frontend side
• Ring Antiforgery middleware
• Clojure miniprofiler example
• Componentized application
• Datascript with reagent example
• Booststrap css styles

Docker

There is a dockerfile attached which will fetch the latest version and run an example project.

Configuration

There is a closp.edn file in the resources folder which should be adapted accordingly. Closp uses nomad https://github.com/james-henderson/nomad, so you can configure everything as you can do with nomad. When you start your project from the repl it will load the default closp.edn from resources folder, which fits for development. For a different config in another environment you can pass in a file path via system environment setting like so: java -jar -Dclosp-config-path=C:\\path\\to\\iwf-prod.edn closp.jar. Please think of changing the :env key in the config to :prod instead of :dev when changing to a different environment.

closp-crud

This is a module that generates html, routing and sql files for a given table definition. For more information please look here: https://github.com/sveri/closp.

Database

Closp per default is configured to connect to a file H2 database.
Additionally I added support for joplin https://github.com/juxt/joplin to handle migration of sql scripts. To get started run lein joplin migrate sql-dev-env in the project folder. This is enough to get running. Changing the jdbc url in the closp.edn file will switch to another database. But keep in mind you will have to run the migration step again and change the jdbc url in the project.clj too. The connection is handled by jdbc https://github.com/clojure/java.jdbc so everything that jdbc supports is supported by closp out of the box.
Closp comes with korma https://github.com/korma/Korma for an abstraction layer over jdbc. See db\users.clj for how it is used.

Authentication and Authorization

We use the buddy (https://github.com/funcool/buddy) library for this.
Configuration is done in ns.service.auth
There is a concept of roles, admin and none are alreaded provided, you can add more in the auth namespace. Or, create a database storage for this.
Next you can find a rules def in the auth namespace which defines the access rules for every available link. For more information please look at the buddy documentation.

Templating

Closp ships with selmer https://github.com/yogthos/Selmer (django inspired) templating solution.

Signup

There is a signup workflow implemented that sends out an email after regristration with a link to activate the account. Until the account is activated the user won't be able to login.

Recaptcha

The signup form is protected by recaptcha. To make it work:

• add your public key to signup.html
• Add your private key and domain to routes/user.clj#connectReCaptch

Admin user interface

Closp ships with an administrator interface (/admin/users) to activate / deactivate users and set roles accordingly. There is also an option to add new users.

Reloading of clojure code and templates

In dev mode changes the clojure code will be recompiled and reloaded on page refresh. The same is true for the templates. Theoretically this results development without server restarts.

CLJX support

Closp will automatically compile cljx https://github.com/lynaghk/cljx files in the cljx folder and add them to the clj / cljs classpath.

Clojurescripth with figwheel

When running in dev mode cljs files will be auto compiled and sent to the browser via figwheel https://github.com/bhauman/lein-figwheel

Email system

Closp uses postal https://github.com/drewr/postal for sending authentication links. This can be configured in closp.edn.

Components

Closp comes with some predefined components https://github.com/danielsz/system

• Handler component
• Configuration component
• Database component
• Webserver component

To restart the components just hit (reset) in the running repl.

Ring antiforgery

https://github.com/weavejester/ring-anti-forgery is enabled per default for every shipped form. If you use ajax post / put / ... calls you need to provide a :X-CSRF-Token in the header. With cljs-ajax for example it would look like this:

(ajax/ajax-request
    {:uri             url
     :method          method
     :params          content
     :headers         {:X-CSRF-Token (get-value "glob_anti_forgery")}})

Reagent and Datascript

Closp includes a reagent https://github.com/reagent-project/reagent and datascript https://github.com/tonsky/datascript example taken from https://gist.github.com/allgress/11348685 to get started with frontend development.

Support for flash messages with global flash div

To use it call (layout/flash-result "success message" "alert-success") and on the next page load a div will appear with the success message on top of the page.

Production

There is a leiningen task defined in the project.clj to generate an uberjar. Just execute lein uberjar. By default this will include your closp.edn config file in the build from resources folder. You should at least change the :env entry to :prod or something else than :dev. There are several ways to setup a more separated dev / staging / prod environment. Please lookup nomad for that.

Minor features.

• Miniprofiler https://github.com/yeller/clojure-miniprofiler example in routes\user.clj -> admin-page function. The profiler is enabled in development only
• Namspace support: Add -n name.space option to lein new closp projectname to provide a namespace for the source files.
• Self registration can be turned on or off in the closp.edn file in the resources folder.

Planned features

• CRUD plugin to generate frontend to database CRUD for entities
• Whatever seems useful in the future.

FAQ

I get this warning: Uncaught Error: Invariant Violation: _registerComponent(...): Target container is not a DOM element.

This will happen only in dev mode for every page where you did not explicitly register your clojurescript with. Look at dev.cljs for this line :jsload-callback (fn [] (core/main)) and change the call to (core/main) how you need it for the page you are working on right now.

License

Copyright © 2015 Sven Richter

Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.