I am completely new to SOAP Api's and have an API that only accepts SOAP requests. The documentation is very bad to non-existent, but they do have some example implementations showing everything of in PHP, Java and .Net. I am able to understand the PHP code slightly and My goal is and I have tried to translate it to JS with "soap", but I just get the error: connect ECONNREFUSED ::1:80. The API requires the use of certificates and needs TLS 1.2 handshaking.
Here is the code snippit in PHP, that I want to translate into Node.js with node-soap:
function createSoapClient()
{
$sslOptions = array(
'local_cert' => $_POST['certifikat'],
'verify_peer' => true,
'cafile' => $_POST['ca'],
'CN_match' => 'kt-ext-portwise.statenspersonadressregister.se');
$streamcontext = stream_context_create(
array('ssl' => $sslOptions));
$options = array(
'location' => $_POST['url'],
'stream_context' => $streamcontext);
// For the client to be able to read the file locally it requires a "file:// in front of the path"
$wsdl = 'file://' . dirname(__FILE__) . DIRECTORY_SEPARATOR . 'resurser/personsok-2021.1.wsdl';
return new SoapClient($wsdl, $options);
}
I seem to be able to create a Soap Client but when I call the Soap function "PersonSok" it throws me that error: connect ECONNREFUSED ::1:80. I use express to start the node.js project. Here is my code so far: (the two functions and only a part of the whole code)
// Send request
export function sendRequest() {
return new Promise((resolve, reject) => {
var args = { "Identifieringsinformation": createIdentifieringsInformation()};
args["PersonsokningFraga"] = {"IdNummer": 195704133106};
console.log("Passing arguments to PersonSok: " + args);
// Create soap client
createSoapClient().then((client) => {
client.PersonSok(args, function (err, result) {
if(err) {
reject(err);
} else {
resolve(result);
}
});
});
});
}
// Create SOAP Client
export function createSoapClient() {
return new Promise(async (resolve, reject) => {
var url = './assets/personsok.wsdl';
// The commented code below is just some methods I have tried, but still same error.
/*
const secureContext = tls.createSecureContext({
cert: fs.readFileSync('assets/Kommun_A.pem'),
ca: fs.readFileSync('assets/DigiCert.pem'),
});
*/
//var client = await soap.createClientAsync(url, { secureContext, secureOptions: tls.SSL_OP_NO_TLSv1_2, rejectUnauthorized: false });
var client = await soap.createClientAsync(url, { rejectUnauthorized: false, strictSSl: false, secureOptions: tls.SSL_OP_NO_TLSv1_2 });
var wssec = new soap.ClientSSLSecurity('assets/private-key.pem', 'assets/csr.pem', 'assets/public-cert.pem');
client.setSecurity(wssec);
if(!client) {
reject("Error: could not create SOAP client.");
}
console.log("Created SOAP Client");
resolve(client);
});
}
I appreciate all the help I can get! :)))
I finally found a working translation. In this case I am trying to post a request to the Swedish SPAR API (Statens personadressregister) so there could be differences between this and the API your are trying to reach.
But on the road I got confronted with three errors after each other, here is how I fixed them:
Error 1: "ECONNECTREFUSED ::1:80"
Solution to error 1: In my previous test code I didn't set an endpoint to where the request should go as there is in the PHP option "location" corresponding to client.setEndpoint(url). I can't really explain this, but this thread set the cert and key option in both the client.ClientSSLSecurity() and in a new and overriden HttpAgent inside of the wsdl_options of the created SOAP client.
Error 2: "ECONNECT socket hangup"
Solution to error 2: I saw, that my previous SOAP request had a default header of "connection": "close". I suppose, that the connection for some reason close before any response could be finished. The solution was therefore to add the code: client.addHttpHeader("connection", "keep-alive"). I also saw this solution for others on stack overflow having a similar error.
In this stage I was able to establish a connection and a successful auth between my client and SPAR's API.
Error 3: Validation error Solution to error 3: So this is more of a specific error relating to the API I was trying to reach, but might also become a problem of your's. I realised, that my arguments has to be in a correct order of the object, otherwise it will throw (in my case) a validation error. Check your wsdl for more information on this! For example this didn't work for me:
const args = {
arg2: blabla,
arg1: blabaa,
...
}
Last but not least, here is the entire code. Fill in the information, that you need to make your request. This one worked ME and I am just around 40 intensive hours experienced with SOAP so far, so don't take my word for everything. I just tried explain with the best of my knowledge :)
const soap = require('soap');
const tls = require('tls');
const fs = require('fs');
const https = require('https');
const express = require('express');
const app = express();
const port = 8080;
const wsdlUrl = "url";
const endpoint = "url";
const cert = "pathToCert";
const key = "pathToKey";
const args = {
{yourArgs}
};
// Create Client
async function createClient() {
var sec = new soap.ClientSSLSecurity(
key, // key
cert, // cert
);
var client = await soap.createClientAsync(wsdlUrl, {
wsdl_options: {
httpsAgent: new https.Agent({
key: fs.readFileSync(key),
cert: fs.readFileSync(cert),
}),
},
});
client.addHttpHeader('connection', 'keep-alive');
client.setEndpoint(endpoint);
client.setSecurity(sec);
return client;
}
// Send soap request with custom arguments
async function sendSOAPRequest(args) {
var client = await createClient();
var result = await client.MyFunction(args);
return result;
}
app.get('/', (req, res) => {
res.send("Node-SOAP test.");
});
app.get('/yourNodeJSEndpoint', async (req, res) => {
var result = await sendSOAPRequest(args);
res.send(result);
});
app.listen(port, () => {
console.log(`Example app listening on port ${port}`);
});Ask me if you have any questions, suggestions or better explanations on this matter.