Exposing RPC interface

For exchanges, there is a specialized JSON RPC service. However it is limited and exposes only those functions that the exchanges need.

If you are developing a service on Obyte and your programming language is node.js, your best option is to just require() the ocore modules that you need (most likely you need headless-obyte and various modules inside ocore). This way, you'll also be running a Obyte node in-process.

If you are programming in another language, or you'd like to run your Obyte node in a separate process, you can still access many of the functions of headless-obyte and ocoreby creating a thin RPC wrapper around the required functions and then calling them via JSON-RPC.

To expose the required functions via JSON-RPC, create a small node.js module that depends on headless-obyte, ocore (and any other byteball modules) and RPCify:

var rpcify = require('rpcify');
var eventBus = require('ocore/event_bus.js');
​
// this is a module whose methods you want to expose via RPC
var headlessWallet = require('headless-obyte'); 
var balances = require('ocore/balances.js'); // another such module
​
// most of these functions become available only after the passphrase is entered
eventBus.once('headless_wallet_ready', function(){
​
	// start listening on RPC port
	rpcify.listen(6333, '127.0.0.1');
​
	// expose some functions via RPC
	rpcify.expose(headlessWallet.issueChangeAddressAndSendPayment);
	rpcify.expose(balances.readBalance, true);
	rpcify.expose([
		headlessWallet.readFirstAddress,
		headlessWallet.readSingleWallet,
		headlessWallet.issueOrSelectAddressByIndex
	], true);
​
});

Start this module (which also includes a Obyte node) and you'll be able to call the exposed functions via RPC from a program in any language. See the documentation about RPCify for more details.