hello, world

First, you need to successfully install fibjs in your system. As usual, we start our first line of fibjs program with the simplest "hello, world":

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console.log('hello, world');

After saving the file main.js, fibjs main.jsyou can execute this code by typing it on the command line.

The first hello server

As a back-end development framework, fibjs has a built-in quite powerful application server. We can quickly build a web server very conveniently. Next we will set up our first hello server:

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const http = require('http');

var svr = new http.Server(8080, (req) => {
    req.response.write('hello, world');
});

svr.start();

After running, enter in the browser:

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http://127.0.0.1:8080/

You can see the output from our first hello server hello, world.

Be smarter

The first hello server is stupid, it just returns no matter what address you enter hello, world. Next let's make it a little smarter:

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const http = require('http');

var hello_server = {
    '/:name': (req, name) => {
        req.response.write('hello, ' + name);
    }
};

var svr = new http.Server(8080, hello_server);

svr.start();

After running, enter in the browser address bar:

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http://127.0.0.1:8080/fibjs

You can see that the output content of the server changes hello, fibjs. When you modify the content of the address bar, the output content of the server will also change accordingly.

Those who can do more work, support static websites

Next, we ask the server to do more things. We hope that the server can support static file browsing and can also output hello, world. We set the response hello, fibjsaddress as: /hello/fibjs：

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const http = require('http');
const path = require('path');

var root_server = {
    '/hello/:name': (req, name) => {
        req.response.write('hello, ' + name);
    },
    '*': path.join(__dirname, 'web')
};

var svr = new http.Server(8080, root_server);

svr.start();

You need to create a directory weband store some files in it, such as downloading a fibjs document and placing it in it for testing.

After running, we http://127.0.0.1:8080/hello/fibjscan still see it when we access it hello, fibjs, but when we access other addresses, we will see static files.

Increase module decoupling capabilities

Next, let's make the server a little more complex. We have a set of hello services that complete the business requests we define. The path to this set of services is specified by the master service based on requirements. In the following example, helloand bonjourwill point to the hello service.

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const http = require('http');
const path = require('path');

var hello_server = {
    '/:name(fibjs.*)': (req, name) => {
        req.response.write('hello, ' + name + '. I love you.');
    },
    '/:name': (req, name) => {
        req.response.write('hello, ' + name);
    }
};

var root_server = {
    '/hello': hello_server,
    '/bonjour': hello_server,
    '*': path.join(__dirname, 'web')
};

var svr = new http.Server(8080, root_server);

svr.start();

In this way, we can easily create completely decoupled modules, and then use the main program to assemble them into the interfaces we need. This is particularly convenient in api version management. For example, if you /v1/hello/fibjschange from to /v2/hello/fibjs, the module itself does not need to make any changes, just modify it at the entrance.

summary

Through this section, you can start your own fibjs server project. Next, we will introduce the development methods of fibjs in more subdivisions.

👉【A better life starts with testing】