Variables mentioned below should be treated as constants. Because of javascript flexibility we can not disallow you to change them in your code. But all changes will have absolutely no effect.

Integer, debug level (sometimes called verbose level). Corresponds to -vN command line parameter.

Useful when you need to hide debug/test messages when running in release mode.

Default value: 0

Example:

	if( debug >= 2)
		Print( "Sbcore version is ", version );
	

String, current application directory, without trailing slash

It can be changed with -d command line parameter under Windows and Linux.

For Android it's something like: /storage/emulated/0/Android/data/com.scraper/files.

Example:

	Write( directory + "/test.txt", "Hello, world!" );
	

String, current Scrapper application version.

Example:

	Print( version );
	

Object. Information about current device. It has the following fields:

computer.uuid	32-character string. MD5 hash of unique computer identifier. Different devices will have different UUID.
computer.mac	12-character string. mac-address of computer's NIC.
computer.os.name	Operating system name. One of the following: Windows, Linux, Android
computer.os.version	String. Operating system version.
computer.device	String. Device name. Available for Android only.

Example:

	if( "Android" == computer.os.name)
		Print( "Hello, Android!" );
	

Object. Application local storage. Storage file may be specified either in command line with -s parameter, or with Load method. Storage is the same for all workers. It has the following methods:

Get ( key )	returns the value previously set with Set
Set ( key, value )	sets value for specified key
All ( )	reurnd JSON of all key-value pairs
Load ( fpath )	Loads the data from give path. Also, this path will be used for saving data back to file.

Example:

	// set storage file
	storage.Load("storage_file");
	// get previous value
	var str_counter = storage.Get("counter");
	// convert it to number
	var counter = str_counter ? parseInt(str_counter) : 0;
	// increment it
	counter++;
	// save it back. Note: second parameter is string.
	storage.Set("counter", counter.toString());
	// This will output incremented number every new run of the application
	Print("Counter : ", counter);
	// Now, let's see what is is storage
	var all = storage.All();
	Print("Storage content: ", JSON.stringify(all));
	
	// The output:
	
	Counter : 3
	Storage content: { "counter": "3" }
	

This is special URL of the proxy checker service we developed. It returns simple JSON like this:

	{
		"address": {
			"remote":"127.0.0.1",
			"forwarded":"127.0.0.1",
			"real":"127.0.0.1"
		}
	}
	

remote	remote address of endpoint
forwarded	X-Forwarded-For value of HTTP header. Optional.
real	X-Real-IP value of HTTP header. Optional.

Here is a sample code of simple proxy checker.

Functions

Deployment

Samples

Command line