ts
ThirdPartyEmailPassword.init({
    override: {
        apis: (oI) => {
            return {
                ...oI,
                emailPasswordSignInPOST: (input) => {
                    // we can access req later on in the API
                    input.userContext.req = input.options.req;
                    return oI.emailPasswordSignInPOST!(input);
                },
                emailPasswordSignUpPOST: (input) => {
                    // we can access req later on in the API
                    input.userContext.req = input.options.req;
                    return oI.emailPasswordSignUpPOST!(input);
                },
                thirdPartySignInUpPOST: (input) => {
                    // we can access req later on in the API
                    input.userContext.req = input.options.req;
                    input.options.req.getHeaderValue('User-Agent');
                    return oI.thirdPartySignInUpPOST!(input);
                },
            }
        }
    }
})

Session.init({
    override: {
        functions: (oI) => {
            return {
                ...oI,
                createNewSession: async function (input) {
                    // same req as what's available in the sign in / sign up APIs
                    let req = input.userContext.req;
                    let userAgent = req.getHeaderValue('User-Agent');
                    if (userAgent !== undefined) {
                        // this saves the user-agent info in the session
                        // so that it can be fetched later on when displaying the user's
                        // device list 
                        input.sessionData = {
                            ...input.sessionData,
                            userAgent
                        }
                    }
                    return oI.createNewSession(input);
                }
            }
        }
    }
})