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dss:laboratoare:07 [2021/07/07 12:54] razvan.nitu1305 [1. C function interface] |
dss:laboratoare:07 [2021/07/19 10:08] (current) razvan.nitu1305 [Vibe.d] |
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| - | ==== Vibe.d ==== | ||
| - | |||
| - | The [[http://vibed.org/|vibe.d]] framework [[http://vibed.org/features|provides]] a toolkit for doing asynchronous I/O in a familiar and natural procedural style. It combines the intuitive and efficient programming style of synchronous I/O with the scalability of asynchronous I/O, making the development process sweet and simple. | ||
| - | |||
| - | === Getting started with vibe.d === | ||
| - | |||
| - | The easiest way to get started is to use the DUB package manager and let it handle the downloading and building of vibe.d and derived applications. | ||
| - | |||
| - | To initialize the skeleton of a simple app, run the following command from your projects directory: | ||
| - | <code bash> | ||
| - | cd /path/to/my/projects | ||
| - | dub init <project-name> -t vibe.d | ||
| - | </code> | ||
| - | |||
| - | This will create a new directory with the given name and creates the basic directory structure that is recommended for vibe.d projects. | ||
| - | Running it will start up an HTTP server on port 8080, serving a simple plain-text page. | ||
| - | |||
| - | Your hierarchy should look like this: | ||
| - | <code bash> | ||
| - | project-name/ | ||
| - | dub.json | ||
| - | public/ | ||
| - | source/ | ||
| - | app.d | ||
| - | views/ | ||
| - | </code> | ||
| - | |||
| - | The default **app.d** file has the following content | ||
| - | <code d> | ||
| - | import vibe.vibe; | ||
| - | |||
| - | void main() | ||
| - | { | ||
| - | auto settings = new HTTPServerSettings; | ||
| - | settings.port = 8080; | ||
| - | settings.bindAddresses = ["::1", "127.0.0.1"]; | ||
| - | listenHTTP(settings, &hello); | ||
| - | |||
| - | logInfo("Please open http://127.0.0.1:8080/ in your browser."); | ||
| - | runApplication(); | ||
| - | } | ||
| - | |||
| - | void hello(HTTPServerRequest req, HTTPServerResponse res) | ||
| - | { | ||
| - | res.writeBody("Hello, World!"); | ||
| - | } | ||
| - | </code> | ||
| - | |||
| - | Once you have the project in place, simply run DUB from the project's root directory and it will get all dependencies, compile the application, and run it: | ||
| - | |||
| - | <code bash> | ||
| - | cd path/to/project | ||
| - | dub | ||
| - | Performing "debug" build using dmd for x86_64. | ||
| - | vibe-d 0.7.26: target for configuration "libevent" is up to date. | ||
| - | vibedtest ~master: building configuration "application"... | ||
| - | Linking... | ||
| - | To force a rebuild of up-to-date targets, run again with --force. | ||
| - | Running ./vibedtest | ||
| - | Listening for requests on http://::1:8080 | ||
| - | Listening for requests on http://127.0.0.1:8080 | ||
| - | Please open http://127.0.0.1:8080/ in your browser. | ||
| - | </code> | ||
| - | |||
| - | As the next step, you can go ahead and edit the source/app.d file. | ||
| - | For a simple web application, the **app.d** file could look similar to this one: | ||
| - | |||
| - | <code d> | ||
| - | import vibe.d; | ||
| - | |||
| - | void userInfo(HTTPServerRequest req, HTTPServerResponse res) | ||
| - | { | ||
| - | auto username = req.params["user"]; | ||
| - | render!("userinfo.dt", username)(res); | ||
| - | } | ||
| - | |||
| - | void addUser(HTTPServerRequest req, HTTPServerResponse res) | ||
| - | { | ||
| - | enforceHTTP("user" in req.form, HTTPStatus.badRequest, "Missing user field."); | ||
| - | res.redirect("/users/" ~ req.form["user"]); | ||
| - | } | ||
| - | |||
| - | shared static this() | ||
| - | { | ||
| - | auto router = new URLRouter; | ||
| - | router.get("/users/:user", &userInfo); | ||
| - | router.post("/adduser", &addUser); | ||
| - | router.get("*", serveStaticFiles("./public/")); | ||
| - | |||
| - | listenHTTP(new HTTPServerSettings, router); | ||
| - | } | ||
| - | </code> | ||
| - | |||
| - | An example of the html template **userinfo.dt** file could look something like this. | ||
| - | Those files are called Diet templates. To get used to the syntax please read the [[http://vibed.org/templates/diet|docs]]. | ||
| - | <code dt> | ||
| - | doctype html | ||
| - | html | ||
| - | head | ||
| - | title Example page | ||
| - | body | ||
| - | p Hello user '#{username}' | ||
| - | </code> | ||
