larvitbase-www
v0.8.67
Published
Website framework based on larvitbase
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378
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larvitbase-www
Website base framework based on larvitbase
Running the following middlewares:
Parse the request, saving request body and more.
Routing the request, the result is saved on req.routed This also decides if the response should be rendered, depending on if the URL ends with .json or not. Rendering is saved in req.render = true/false If the request ends in .json, that is stripped off before it is routed to a controller or template, but NOT a static file.
Feed a static file as a response, if it is routed and exists. If a static file is detected and this middleware is ran; req.finished is set to true, and no other data should be sent in the respons, not even res.end().
Run controller
If a controller is found in the routing, the controller will be executed. Read more details on controllers further down. A controller is not mandatory.
Render template with ejs
Ejs will be feeded with res.data as data and the routed template file as template.
OR if req.render is false OR if no template is found:
send res.data as a JSON string to the client.
Run reqParser clean function
Installation
npm i larvitbase-wwwBasic usage
index.js
const App = require('larvitbase-www');
let app;
app = new App({
'baseOptions': {'httpOptions': 8001}, // sent to larvitbase
'routerOptions': {}, // sent to larvitrouter
'reqParserOptions': {}, // sent to larvitpeqparser
});
app.start(function (err) {
if (err) throw err;
});
// Exposed stuff
//app.options - the options sent in when instanciated
//app.base - larvitbase instance
//app.router - larvitrouter instance
//app.reqParser - larvitreqparser instance
// Shorthands
//app.middlewares shorthand for app.base.middlewares and app.options.baseOptions.middlewarescontrollers/default.js
'use strict';
exports = module.exports = function controllerDefault(req, res, cb) {
res.data = { foo: 'bar' };
cb();
}controllers/foo.js
'use strict';
exports = module.exports = function controllerFoo(req, res, cb) {
res.data.foo = 'baz';
cb();
}public/templates/default.ejs
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Default page</title>
</head>
<body>
<h1><%= foo %></h1>
</body>
</html>public/templates/foo.ejs
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Foo page</title>
</head>
<body>
<h1><%= foo %></h1>
</body>
</html>public/templates/another.ejs
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Another page</title>
</head>
<body>
<h1>This page have no controller, just a template</h1>
</body>
</html>Summary
This will provide the following:
- Default controller on / (and /default) Go to http://localhost:8001/ and you'll see the default template being rendered with the default controller.
- Foo controller and template will render on /foo
- Another page will render, without controller on /another
res.data by default
By default res.data is set to an object consisting of:
- res.data.global - will always be at least an empty object
- res.data.global.formFields - taken directly from req.formFields provided by larvitreqparser
- res.data.global.urlParsed -
.json paths
If you provide an URL ending in .json and no such static file exists, larvitbase-www will feed res.data as raw JSON to the client.
For example if you have a controller named controllers/foo.js and you enter the url http://localhost:8001/foo.json in your browser, by default you'll see raw JSON.
Skip rendering
If req.render is set to boolean false, it will have the same effect as providing a .json path; res.data will be sent directly to the client as raw JSON.
Stop further execution of middleware, req.finished
If req.finished is set to true, the builtin middlewares, including the controller-runner, will be bypassed. This is useful if an error is encountered of if some rate-limiter or other stuff should stop further execution of a request.
404 and 500; no route found and internal errors
404
If no route is found, app.noTargetFound(req, res, cb) is ran. The default noTargetFound() only sets res.statusCode = 404 and writes "404 Not Found" to the client as raw text.
If a template exists named 404 that will be used.
500
If a middleware emits an error or something goes wrong in the network stack, app.internalError(req, res, cb) is ran. By default internalError() only sets res.statusCode = 500 and writes "500 Internal Server Error" to the client as raw text.
If a template exists named 500 that will be used.
Todo
- Set appropriate HTML headers
Changelog
0.8.0
- Removed larvitfs functionality (auto lookup of controllers/templates in node_modules)
- Use latest lib versions
- No custom EJS include, .ejs is the assumed extension now. For instance
<%- include('inc/head') %>will resolve toinc/head.ejs(even if it was included from a file named .tmpl).