This module lets you connect to web services using SOAP. It also provides a server that allows you to run your own SOAP services.
Features:
- Very simple API
- Handles both RPC and Document schema types
- Supports multiRef SOAP messages (thanks to @kaven276)
- Support for both synchronous and asynchronous method handlers
- WS-Security (currently only UsernameToken and PasswordText encoding is supported)
Install with npm:
npm install soap
soap.createClient(url, callback) - create a new SOAP client from a WSDL url. Also supports a local filesystem path.
var soap = require('soap');
var url = 'http://example.com/wsdl?wsdl';
var args = {name: 'value'};
soap.createClient(url, function(err, client) {
client.MyFunction(args, function(err, result) {
console.log(result);
});
});soap.listen(server, path, services, wsdl) - create a new SOAP server that listens on path and provides services.
wsdl is an xml string that defines the service.
var myService = {
MyService: {
MyPort: {
MyFunction: function(args) {
return {
name: args.name
};
}
// This is how to define an asynchronous function.
MyAsyncFunction: function(args, callback) {
// do some work
callback({
name: args.name
})
}
}
}
}
var xml = require('fs').readFileSync('myservice.wsdl', 'utf8'),
server = http.createServer(function(request,response) {
response.end("404: Not Found: " request.url)
});
server.listen(8000);
soap.listen(server, '/wsdl', myService, xml);If the log method is defined it will be called with 'received' and 'replied' along with data.
server = soap.listen(...)
server.log = function(type, data) {
// type is 'received' or 'replied'
};If server.authenticate is not defined no authentation will take place.
server = soap.listen(...)
server.authenticate = function(security) {
var created, nonce, password, user, token;
token = security.UsernameToken, user = token.Username,
password = token.Password, nonce = token.Nonce, created = token.Created;
return user === 'user' && password === soap.passwordDigest(nonce, created, 'password');
};This is called prior to soap service method If the method is defined and returns false the incoming connection is terminated.
server = soap.listen(...)
server.authorizeConnection = function(req) {
return true; // or false
};An instance of Client is passed to the soap.createClient callback. It is used to execute methods on the soap service.
client.describe() // returns
{
MyService: {
MyPort: {
MyFunction: {
input: {
name: 'string'
}
}
}
}
} client.setSecurity(new WSSecurity('username', 'password')) client.MyFunction({name: 'value'}, function(err, result) {
// result is a javascript object
}) client.MyService.MyPort.MyFunction({name: 'value'}, function(err, result) {
// result is a javascript object
})WSSecurity implements WS-Security. UsernameToken and PasswordText/PasswordDigest is supported. An instance of WSSecurity is passed to Client.setSecurity.
new WSSecurity(username, password, passwordType)
//'PasswordDigest' or 'PasswordText' default is PasswordText