Authentication & Identity APIs
FrontEgg vs AWS Cognito: what’s the migration effort and what breaks (tokens, user IDs, org model)?
8 min read
Most teams thinking about moving from AWS Cognito to FrontEgg are worried about three things: how much code they’ll actually have to touch, what will break in production (tokens, sessions, SSO), and whether they’ll lose their user and org model along the way. The reality: you can migrate in phases, you can usually preserve user IDs, and you can run with parallel auth until you’re confident to cut over—if you plan it right.
Quick Answer: Migrating from AWS Cognito to FrontEgg is a one-time integration project focused on login flows, token validation, and your org/tenant model. You’ll refactor auth plumbing, not your core app logic, and most teams complete a controlled rollout in weeks—not months—without losing users or blowing up production tokens.
Frequently Asked Questions
What actually changes when I migrate from AWS Cognito to FrontEgg?
Short Answer: Your identity provider changes (Cognito → FrontEgg), so your app’s login, token issuance/validation, and user/org management move to FrontEgg—but your core business logic and front-end product surfaces stay intact.
Expanded Explanation:
Think of this as swapping identity engines, not rewriting your SaaS. You’ll replace Cognito user pools, hosted UI, and app clients with FrontEgg’s embeddable login box, MFA, and Admin Portal. Your code that calls Cognito (SDK calls, JWT verification, user admin flows) will now call FrontEgg APIs and validate FrontEgg-issued tokens.
Under the hood, the big shifts are:
- Authentication: flows move from Cognito hosted UI/OAuth endpoints to FrontEgg authentication (OIDC/OAuth/SAML).
- Authorization & org structure: you move from Cognito groups/custom attributes to FrontEgg entitlements, roles, and multi-tenant orgs (including Account Hierarchies if you need parent/sub-accounts).
- Admin experience: instead of wiring custom consoles around Cognito, you plug in the FrontEgg Admin Portal so Security, Customer Success, and your customers can manage users, roles, and policies directly.
Your app becomes simpler: “Trust FrontEgg’s tokens, call FrontEgg’s APIs, and use its Admin Portal.” You go back to building product, not auth plumbing.
Key Takeaways:
- You’re replacing Cognito’s auth/identity layer, not your entire app.
- Your app’s UI and business logic mostly stay the same; the integration points just move to FrontEgg SDKs and APIs.
What is the actual migration process from AWS Cognito to FrontEgg?
Short Answer: The migration is typically a phased rollout: mirror your user/org model into FrontEgg, wire FrontEgg auth into a staging environment, run parallel auth, then cut over traffic once tokens and flows are verified.
Expanded Explanation:
In practice, Cognito → FrontEgg migration looks like a controlled infrastructure change, not a big bang rewrite. You stand up FrontEgg alongside Cognito, test flows, then switch your app’s auth endpoints and token validation logic. To keep risk low, most teams:
- Maintain Cognito as the source of truth while they backfill users into FrontEgg.
- Support “silent” migration on first login (for passwords) or bulk import where possible.
- Use environment-appropriate keys and URLs so you can flip between providers via configuration, not code changes.
Because FrontEgg is “built by developers, for developers” with open-source SDKs and APIs, you can treat it like any other backend dependency: feature flags, A/B cutover, and staged rollout across regions or tenants.
Steps:
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Model & configure FrontEgg
- Set up tenants/accounts, roles, and entitlements to match or improve on your Cognito groups/attributes.
- Configure SSO (SAML/OIDC), MFA, and required authentication policies.
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Migrate users and hook up tokens
- Bulk-import users or configure just-in-time migration on first login.
- Implement FrontEgg token issuance & verification in your services (API gateway, backends, edge).
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Run parallel and cut over
- Test in staging with FrontEgg-only auth.
- Gradually move production traffic to FrontEgg (per region, tenant, or feature flag) until Cognito can be fully decommissioned.
What breaks with tokens, sessions, and user IDs when leaving Cognito?
Short Answer: Existing Cognito JWTs and refresh tokens won’t be reusable against FrontEgg, but you can keep user IDs stable and manage a clean cutover window so users don’t experience unexpected logouts.
Expanded Explanation:
JWTs are signed by the issuing provider. When you move from Cognito to FrontEgg, the issuer (iss), audience (aud), signing keys, and claims shape change. That means:
- You cannot validate a Cognito token against FrontEgg public keys.
- You cannot transparently “convert” a Cognito refresh token into a FrontEgg session.
However, you can control the blast radius:
- User IDs: you can keep stable identifiers (e.g.,
userId,sub, or a custom external ID) and map them 1:1 into FrontEgg. This is critical for preserving data relationships and audit trails. - Sessions: you choose a cutover time window. Before that time, your services accept Cognito tokens; after that, they require FrontEgg tokens. Short-lived access tokens plus a communication plan make this manageable.
- Claims: you’ll likely want to rationalize claims—moving from “groupy” Cognito claims to structured entitlements and roles in FrontEgg. That’s a breaking change for any code that reads specific Cognito claims by name.
With proper planning, the only visible impact users see is a one-time re-login event when the new provider becomes authoritative.
Comparison Snapshot:
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Option A (Cognito tokens):
- Issuer and keys: AWS Cognito.
- Claims often tied to groups and custom attributes.
- Harder to express multi-tenant entitlements cleanly.
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Option B (FrontEgg tokens):
- Issuer and keys: FrontEgg.
- Claims aligned to tenants, roles, and entitlements beyond RBAC.
- Built to work with multi-tenant by design SaaS and edge auth checks.
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Best for: teams that want a modern claims model tied to tenants and entitlements, not just raw user attributes and groups.
What happens to my org/tenant model and RBAC when I move off Cognito?
Short Answer: You’ll migrate from Cognito’s groups/attributes into FrontEgg’s multi-tenant org structures, roles, and entitlements—usually gaining finer control over B2B tenants and complex account hierarchies.
Expanded Explanation:
Cognito isn’t designed as a full multi-tenant CIAM system; it gives you user pools, groups, and attributes. Most B2B SaaS teams end up encoding tenancy and permissions partly in Cognito, partly in app databases, and partly in glue code.
FrontEgg is multi-tenant by design. That means:
- Tenants/accounts as first-class: each customer account can have its own branding, policies, and login configuration.
- Account Hierarchies: if you sell into complex organizations (regions, subsidiaries, resellers), you can model parent/sub-accounts and use role inheritance instead of ad-hoc workarounds.
- Entitlements beyond traditional RBAC: you can define access based on plan, feature flags, or object-level rules (ABAC-style) and expose it via a single API.
- Admin Portal: your customers can manage their own users, roles, and invitations without opening tickets with your team.
Security and Customer Success get full oversight and control from a centralized dashboard, while developers get clean, predictable tenant and entitlement constructs in code.
What You Need:
- A clear map of how you currently encode tenants, roles, and features (Cognito + app DB).
- A target model in FrontEgg (tenants, Account Hierarchies, roles, and entitlement checks) that reflects your actual commercial/organizational reality.
How much engineering effort is this really—and what’s the business upside?
Short Answer: Expect a focused one-off project (measured in weeks) to swap Cognito calls for FrontEgg and align your org/entitlement model; the payoff is fewer stalled enterprise deals, less time burned on auth plumbing, and a future-proof CIAM layer.
Expanded Explanation:
From a CTO lens, the real cost isn’t just the migration—it’s the ongoing drag of staying on a DIY or semi-DIY identity stack. With Cognito, your team is still stitching together:
- MFA policies, token lifetimes, and security posture.
- SSO/SCIM integrations that enterprises treat as table-stakes.
- Admin tools for internal and customer-facing teams.
- Multi-tenant org structures that don’t truly fit in Cognito’s model.
FrontEgg gives you embeddable login, MFA, social and enterprise SSO, Admin Portal, Account Hierarchies, and entitlements beyond RBAC in one integrated identity layer. It runs with >99.99% uptime, Multi-Region/Multi-Geo hosting, and <1ms auth checks at the edge, backed by 24/7 live support.
Engineering gets out of the identity plumbing business. Security gets stronger MFA and policy engines. Customer Success gets self-serve tenant admin. Product gets a flexible entitlement layer aligned to packaging and pricing.
Why It Matters:
- Impact on revenue: you unblock SSO/SCIM-driven enterprise deals, ship the “table-stakes” identity features buyers expect, and reduce the 33% of deals that stall on security and access requirements.
- Impact on engineering: you reclaim up to 25% of engineering time currently wasted on logins, homegrown authorization, and brittle admin tools—and go back to innovating what truly matters in your core product.
Quick Recap
Moving from AWS Cognito to FrontEgg is a controlled, reversible migration of your identity layer: you rewire login flows, token validation, and org/entitlement models while keeping your core app intact. Tokens won’t be cross-compatible, but user IDs and org relationships can be preserved, and you can use phased rollout to avoid disruption. The payoff is an enterprise-ready, multi-tenant-by-design CIAM platform that serves Developers, Security, Customer Success, and Product from a single integrated identity layer instead of a patchwork of Cognito configurations and custom code.