https://community.qlik.com/t5/Integration-Extension-APIs/Connecting-to-the-existing-enigma-js-session-in-a-browser/m-p/1577182#M10468 <P>Hi Qlik Experts</P><P>I am working on a mashup application, where I connect to Qlik Engine using enigma.js library.</P><P>To authenticate the user I use a custom-build backend service, which authenticates against LDAP and requests a ticket from proxy service.</P><P>My code looks something like this:</P><P>&nbsp;</P><LI-CODE lang="javascript">const enigmaConfig = { host: 'server', port: 443, secure: true, prefix: 'some', appId: 'appId', options: { qpsPort: 4243, cookie: 'QSCookie', }, }; const enigmaConnect({sessionId, qlikTicket}) { const config = { ...enigmaConfig }; if (qlikTicket) { config.urlParams = {qlikTicket}; } if (sessionId) { config.identity = sessionId; } const url = SenseUtilities.buildUrl(config); try { const global = enigma.create({ schema, url: url, }); const session = await global.open(); const doc = await session.openDoc(config.appId); const sessions = await dispatch('getSessions'); // this function will return the list of user sessions by making a request to the back-end service, which will load them from proxy service const latestSession = sessions[sessions.length - 1]; latestSession.qlikTicket = qlikTicket; document.cookie = `${enigmaConfig.options.cookie}=${btoa(JSON.stringify(latestSession))};secure=true`; return true; } catch (err) { console.log(err); document.cookie = `${enigmaConfig.options.cookie}=;`; return false; } } const open() { let cookieSession = null; let connected = false; try { cookieSession = JSON.parse(atob(parseSession(document.cookie))); } catch (err) { } const session = {}; if (cookieSession) { session.sessionId = cookieSession.SessionId; // session.qlikTicket = cookieSession.qlikTicket; // here I can provide the old ticket } else { session.qlikTicket = await dispatch('getTicket'); } connected = await dispatch('enigmaOpen', session); }</LI-CODE><P>&nbsp;</P><P>So idea is when the user opens the connection for first time to capture the session id and store it in a cookie. Then if the user refreshes the browser while the old session is still active to reconnect to the same session by providing the identity attribute in the URL.&nbsp;</P><P>The problem is that if I provide sessionId as identity attribute and do not provide a new qlikTicket attribute connecting to the enigma second time or provide the old ticket (which I can store in the cookie), the connection fails. But if I provide the identity with the existing sessionId and a new qlikTicket , then a session with the new sessionId is created and the old one is being removed. If I refresh the browser multiple times, then I get an error related to too many active sessions.</P><P>I can't use certificates in the connection parameters (or do not want to use them, because this is a front-end application which runs in the browser.</P><P>Could someone help me to connect to the same session? Do I miss some parameter?</P><P>Thanks</P><P>Regards</P><P>Darius</P> Sat, 16 Nov 2024 20:55:38 GMT d_pranskus 2024-11-16T20:55:38Z https://community.qlik.com/t5/Integration-Extension-APIs/Connecting-to-the-existing-enigma-js-session-in-a-browser/m-p/1577182#M10468 <P>Hi Qlik Experts</P><P>I am working on a mashup application, where I connect to Qlik Engine using enigma.js library.</P><P>To authenticate the user I use a custom-build backend service, which authenticates against LDAP and requests a ticket from proxy service.</P><P>My code looks something like this:</P><P>&nbsp;</P><LI-CODE lang="javascript">const enigmaConfig = { host: 'server', port: 443, secure: true, prefix: 'some', appId: 'appId', options: { qpsPort: 4243, cookie: 'QSCookie', }, }; const enigmaConnect({sessionId, qlikTicket}) { const config = { ...enigmaConfig }; if (qlikTicket) { config.urlParams = {qlikTicket}; } if (sessionId) { config.identity = sessionId; } const url = SenseUtilities.buildUrl(config); try { const global = enigma.create({ schema, url: url, }); const session = await global.open(); const doc = await session.openDoc(config.appId); const sessions = await dispatch('getSessions'); // this function will return the list of user sessions by making a request to the back-end service, which will load them from proxy service const latestSession = sessions[sessions.length - 1]; latestSession.qlikTicket = qlikTicket; document.cookie = `${enigmaConfig.options.cookie}=${btoa(JSON.stringify(latestSession))};secure=true`; return true; } catch (err) { console.log(err); document.cookie = `${enigmaConfig.options.cookie}=;`; return false; } } const open() { let cookieSession = null; let connected = false; try { cookieSession = JSON.parse(atob(parseSession(document.cookie))); } catch (err) { } const session = {}; if (cookieSession) { session.sessionId = cookieSession.SessionId; // session.qlikTicket = cookieSession.qlikTicket; // here I can provide the old ticket } else { session.qlikTicket = await dispatch('getTicket'); } connected = await dispatch('enigmaOpen', session); }</LI-CODE><P>&nbsp;</P><P>So idea is when the user opens the connection for first time to capture the session id and store it in a cookie. Then if the user refreshes the browser while the old session is still active to reconnect to the same session by providing the identity attribute in the URL.&nbsp;</P><P>The problem is that if I provide sessionId as identity attribute and do not provide a new qlikTicket attribute connecting to the enigma second time or provide the old ticket (which I can store in the cookie), the connection fails. But if I provide the identity with the existing sessionId and a new qlikTicket , then a session with the new sessionId is created and the old one is being removed. If I refresh the browser multiple times, then I get an error related to too many active sessions.</P><P>I can't use certificates in the connection parameters (or do not want to use them, because this is a front-end application which runs in the browser.</P><P>Could someone help me to connect to the same session? Do I miss some parameter?</P><P>Thanks</P><P>Regards</P><P>Darius</P> Sat, 16 Nov 2024 20:55:38 GMT https://community.qlik.com/t5/Integration-Extension-APIs/Connecting-to-the-existing-enigma-js-session-in-a-browser/m-p/1577182#M10468 d_pranskus 2024-11-16T20:55:38Z