How to use dynamic passport SAML stratagey?

I am trying to implement SAML for google and okta for the different enterprises. Now, I have multiple entry points for that.

 passport.use(
    "saml",
    new SamlStrategy(
        {
            protocol: "https://",
            entryPoint: "entry url", // SSO URL (Step 2)
            issuer: "issuer link", // Entity ID (Step 4)
            path: "ACS URL parth", // ACS URL path (Step 4)
        },
        async function (profile, done) {
             {function body}
        }
    )
);

now, how can I set issuer URL dynamic every time as per user?

As you mentioned that you want you pass dynamic entry point or can say multiple. you can achieve by Configure strategy for multiple providers in passport-sml , there is one function called getSamlOptions here you can write your code to fetch dynamic data from database

Ex:

passport.use("dynmaic-sml", new MultiSamlStrategy(
    {
        passReqToCallback: true, // makes req available in callback
        getSamlOptions: async function (request, done) {

            // get sso config from db and pass 

            return done(null, config);
            
        }
    },
    function (req, profile, done) {
        // logic after response
    })
);