--- title: Multi tenant auth with Auth0 organizations and Rails slug: multi-tenant-auth-with-auth0-organizations-and-rails published_at: 2022-07-27 12:00:44 +0000 updated_at: 2026-03-04 20:13:27 +0000 summary: description: Code: https://github.com/cjavdev/auth0-demo #rails #rubyonrails tags: [cjav_dev, web development tutorials, web development for beginners, vim, ruby, rails, javascript, multi tenant, tenant, organizations, auth0, authentication auth0, multi-tenant architecture, multi tenant architecture, web development, auth0 tutorial, web development tutorial, web development projects, auth0 api authentication, web development 2022, auth0 authentication, auth0 rails authentication] views: 7135 author: CJ Avilla url: https://www.cjav.dev/videos/multi-tenant-auth-with-auth0-organizations-and-rails youtube_url: https://www.youtube.com/watch?v=w8yf9DISpZQ youtube_id: w8yf9DISpZQ embed_url: https://www.youtube.com/embed/w8yf9DISpZQ thumbnail_url: https://i.ytimg.com/vi/w8yf9DISpZQ/hqdefault.jpg type: video --- # Multi tenant auth with Auth0 organizations and Rails *Published: July 27, 2022* *Views: 7135* ## Watch [Watch on YouTube](https://www.youtube.com/watch?v=w8yf9DISpZQ) [![Multi tenant auth with Auth0 organizations and Rails](https://i.ytimg.com/vi/w8yf9DISpZQ/hqdefault.jpg)](https://www.youtube.com/watch?v=w8yf9DISpZQ) ## Description Code: https://github.com/cjavdev/auth0-demo #rails #rubyonrails ## Transcript what's up welcome back in this episode we're going to talk about setting up a multi-tenant authentication system using auth0 with organizations in a rails application so we've already got two things set up we set up auth0 for just basic login and we set up custom subdomain routing for different sites and what we're going to add today is the ability to go through and sign up to one of these custom sites that we're going to be routing to the subdomain for so if we go to the first thing we want to do is head over to the auth0 page again and go back to our applications and you'll notice that when you set up a brand new application so remember that we have this rails simple demo going on if you look under the organizations tab an organization is going to represent a site in our case an organization in your use case that might be a team or an account or or an org right kind of like the github organization in our case each organization is going to represent a site and so each organization has a subdomain in our system but in order to use organizations with this rails simple demo we need to disable a bunch of grants so we want to disable a bunch of these grants now what is tough about this is that when we disable the grants for the rails simple demo application that means that we will not be able to use the management api inside of auth 0 with the same credentials as our rails simple simple demo authentication thing so what we want to do instead is we want to go to our applications and we're going to create a brand new application called a machine to machine applications this is going to be like our rails multi tenant multi whatever demo and we're going to create a new machine to machine application and the api we want to use is the auth0 management api we're going to filter down to organizations and we actually want all of the organization yeah we want all of the organization permissions um we also want connections okay yeah we also want all the connection permissions and we're going to say authorize when you create a brand new machine to machine application it's going to give you a client id and client secret that you can use in order to make api calls to the auth xero api now there is an auth xero ruby client it is called the ruby tool kit for auth0 and so we are going to use this gem today so we're going to say bundle add auth0 let's see bundle add auth0 we also need to up open up our credentials file and add in our machine to machine client id and client secret editor okay we're going to open this up and we're going to add our machine to machine client id and our machine to machine client secret and we're going to use the same domain so let's go back over here we're going to go to settings and we're going to grab our client id and we're going to grab our client secret again i'm going to just delete these apps so no need to copy okay the next thing we want to do is we want to move these login and log out button concepts into each of the sites so recall if we go to slash sites we can see the list if we have the server running if we go to sites we see the list of sites we can go to our test site or we can go to another site here and that shows us the two different sites now what we want to do is on the site show page we're going to add login and logout buttons so the same way that we had our login and logout buttons on the root here we're going to move these into the site show page okay so when we go to something like test.lvh.whatever now we have these login and logout buttons so if we click login right now we're going to get an error and that's because our redirect uri is set to http colon test.lvh.mecolon3000 so right now our application does not support that redirect uri so we're going to go back to our our multi demo for a real simple web demo this is our web application we now want to go into our settings and we're going to scroll down to the section where we set up our urls earlier remember that these urls were our allowed callback urls now inside of our allowed callback urls we need to specify the callbacks that are going to be used for our organization specific routes and so the way this works is we're going to say lvh.me because that's the domain we're testing with and we can add an organization url parameter so here we can say organization name um dot lvh dot me slash whatever so this this allows us to be um or to it allows us to use um uh this subdomain routing with our allowed callback urls okay so that is fine we're going to click on save changes now when we refresh this page we should see okay we don't see that okay so let's go back to um test.lvh.me click on login something went wrong uh redirect uri in the callback didn't match oh right okay so it still doesn't match because there is no organization inside of auth0 that has the name test right and so because we don't have that organization name of test i'll uh set up yet inside of auth0 it's still saying hey that's not a valid redirect uri so what we need to do is every time we create a site with a subdomain we want to register that subdomain as an organization of auth0 and so we can do that with the auth0 api directly so inside of the site model what i want to do is something like i don't know after commit we'll say ensure auth 0 org id and we could do it on create but i also like whatever yeah ensure what is that so we're going to say return if auth 0 org id if there's a if there's an org id then whatever we'll just like go to the next thing otherwise we want to create a new auth0 org so we're going to use the auth xero client and we're going to call create organization and the name is going to be subdomain and the display name is going to be name and we'll come back and look at all the settings for uh what we need to pass into the organization so we're sort of skipping ahead a little bit here where does this auth zero client come from well we're going to define a new auth0 client here so we're going to say def auth 0 client and now we're going to use that ruby gem so we can go over to the ruby gem and look at how we initialize an off zero client so we're going to say something like this and it's also going to have a domain and maybe some other stuff we'll talk about in a minute okay so our auth0 client yeah so it has a domain also has api version and whatever timeout sure that's fine okay so this ruby client id is going to come from our machine to machine client id rails.application.credentials auth0 machine to machine client id and the same thing here client secret the domain is going to be the same as our other domain auth0 domain that's good okay so now we have we should have an off zero client that we can use to call create organization and then we want to update the auth0 org id to be this org this org id here all right so in order to make this all work we have to restart the rail server the other thing we can do is go inside of the rails console find our site dot s's site dot last looks like maybe we're missing a comma um oops reload okay so s dot save bang um credentials i spelt that wrong somewhere cred credentials okay so um s.touch is just a way to update it and change the updated at field basically which will cause this to be committed to the database and after commit we're doing this ensure thing and that ensure thing caused a new um caused our our method here to fire our method for ensure zero org there was no authorial org present so it used the api to make an api call to create a new organization so now we have this org id and now if we look at s dot auth 0 org id we now see this org id is here this is the identifier inside of auth0 that we're going to use for the for the organization so if i go over to organizations now we should see this brand new organization was created here for another so s.name is another cool and if we look into this we should see yeah so the name is another that's cool so now we can let's see like s dot or s equals site up first s dot name is test so now we'll say s dot touch and that should save that and now we have should have like another org or we should have a test org okay so now we have two orgs down here we have another and we have test great now if we go back to our um our demo here so now remember that we should have a test subdomain and we have an org with that test subdomain so when we click login we should have been able to log in here so redirect uri is test.lvh.me off auth0 okay we should not have a read uh mismatch why do we have a mismatch call mac url oh right okay so inside of um inside of our site show page we copied these buttons over for login and logout however when we're working with an organization we need to pass some extra parameters so as part of this post request we're also going to include params and this is where we're going to specify our organization id and also the return uri so we're going to say organization is at site dot auth xero org id the redirect uri is going to be something with the auth callback so if we were to go over here and say localhost 3000 slash blah then we want auth or just callback okay so this is the auth auth0 callback path so we can we should be able to say auth0 callbackpath with subdomain site.subdomain we want to change this to url and i think that should give us what we want okay so let's give this a spin so test.lvh.me let's look at what was actually put in here so yeah the callback that looks right so test lvh dot me 3000 auth zero callback so now we click on log in and invalid request no connections enabled for the client okay so when we create an organization by default there are no connections set up the connections are like all the different ways you can log in and so to enable a connection what we need to do is make another api call that will that will set up the connections for our organization so if we go back to this site site.rb so in addition to creating the org we also want to create and enable organization connections and so um let's see how do we want to do that right so to get the connections i think let's look at the let's jump into the rails console here and say xero site.last.auth001 s okay so if we say s dot auth or like s dot get connections this should give us back the list of connections that are supported connections in practice like i i feel uncomfortable about putting all of all of this um off zero specific stuff inside of the site we should probably move this to some sort of service or something but whatever for now this will work fine so we're going to say give us the connections for uh for yeah just actually just give us all the connections and yeah we'll just say at connections or equals off zero client connections we want to map over those so connections.each do connection for each connection we want to call auth0 client dot create it's like s dot add yeah add organizations enabled connection and we need to pass it the org id and the connection id the method is add organizations enabled connection and nope that's something wrong okay so add so the it's an alias for this create organizations-enabled connection so let's use that and it takes in the organization id connection id and this assign membership on login which we do want to be true because we want people who sign up to become members of this organization so that we can tell which users of the of auth xero that we have that have authenticated are members of which organization and so this i think this should work okay so what i want to do is i want to go back into auth0 and delete these organizations so that we can start over so we're going to delete this and we're going to delete this and we're going to go back into here and say site dot update all auth 0 org id is nil okay so now if we say esta site.first so that we're working with test s.touch so that should fire off uh the api call to create the org the org came back now let's look and see if that org has any connections so we're going to refresh our list of orgs we see test is here and it should have some connections it does not have connections what happened there oh did we not reload s is site dot update all exit um delete we gotta go delete this organization try again okay reloading rails console site.update all auth0 org is nil and then we're going to say site.first.touch okay that created an org refresh the page over here we see test and let's see if it has any connections boom okay so it's got two connections great google oauth and username and password that's amazing all right so now if we come back over here and go to testlvh.me and click log in fingers crossed boom look at that we see it okay this is great this is amazing okay so now we can log in and say or actually yeah let's log in and say wave cgive.dev um okay so we are now logged into test let's go back or actually yeah let's let's go back to the route here um if we click log in we should already be logged in we're brought to the dashboard cool you'll notice that there is an org id here so this org is like the org that this specific user is a member of so if we now go back to if we go to another and click login we should not be logged in and we're not able to like actually see the login flow because we haven't created the org for another so we'll say s is site.last s.touch that should fire up and create the uh the org for another now we'll click login this time i'm going to use google oauth so i'm going to go through the google flow and now i'm logged in with my google my google account so what's cool about this is that we're logged in on on the another page so if i go to slash dashboard we are logged in and if we go to test we can go to dashboard and we're logged in as a different user so this allows us to kind of like log into all these different websites with different authentication credentials so let's go back to lvh.me sites sites and let's add uh let's add a new site new and we're gonna say like test three um testing three let's make this one have a pinkish background and a light blue primary color create site and okay so now we've got this this is cool so now if we click login this should just work because we wired up oh actually no hold on we're on sites three so we want to go to um test three lvh.i mean in fact let's make it so that after you create the site we're redirected to the well we can we can do that in a minute whatever so this should work um because we're on test three to lvhm if we click login now we're brought through the login flow um to authenticate a couple other cool things that we can do so when we create the enabled connection or when we create the organization right out of the box here we can specify the name subdomain and display name but we can also pass like a few other things so if we go to the auth 0 organization api ref then here under the management api where we say create oops create organizations we will see all of the arguments that we can pass okay so under branding we can pass a logo url colors you can even pass some metadata metadata oh wow enabled connections okay so that's what we actually want to do is pass in the enabled connections as we're creating the organization i didn't realize you could do that all in one call all right so let's modify our implementation so that it passes in some branding so we say branding colors we won't have a logo right now but that's fine so we have a primary color and that's gonna be primary color and then we're also gonna have the page background which is gonna be our background color um and what i didn't realize is that we can have this enabled connections thing so enabled connections which is a list of connections and it looks like we need their connection id and then we want to pass um that as true and then connection id is going to be the ids from this connections method so let's actually make this connections method map over each connection yeah and grab the ids out yeah that looks good that looks great okay so um well actually let's make it map to this sort of shape here so we'll say okay give me back something that looks like connection id and assign membership on login true so now we should be able to say connections like this and now we can remove these two api calls as separate calls but what we could do also is like allow the user when they're signing up to select which types of connections they want to have their end users log in with because some people some sites are going to want you to log in with twitter or they're going to want you to log in with you know github or whatever so okay um right so now when we go back to sites let's go also to our sites controller let's update this so that we redirect to site root for the subdomain of the site's subdomain so that when we create a new site here which is going to be like um i don't know fun fun site fun site okay whatever boom and boom all right create site oh no undefined method site root url i think that just i think it created it anyways so let's look at fun site fun.oh we were um because we were using localhost it didn't work because fun was not the subdomain fun.localhost is the domain there's no subdomain in that case but now we see fun.lvh.me and we should be able to log in immediately and look at that it even changed our color so now the background is green and the button is yellow because that matches our site colors so now we have narrowed down our implementation to just a single api call to create an organization we save that off on the site now we have like a full tenant authentication system which is really cool the one last thing that i wanted to do before we run is set it up so that we can see the list of members on the site page so let's actually just make another method here members and we're going to say auth0client.getr.members i think we should be able to say members for organization auth 0 org id i think let's see so site show so here we'll just say at site.members and local or test.lvh.me and undefined method members for auth client okay so what is it what is the method call position we're going to get organization members all right let's see uh bad request uh oh maybe we just passed the org id like this there we go okay so now we have a member you can see their email address um so let's make this a little bit cleaner dot map uh m email i don't know okay so that's the member now if we go to another location here another now we see that has cj village email so they each have different members we have full multi-tenant auth hopefully this was useful thanks so much for watching all the support really appreciate it if you're enjoying this kind of content please like and subscribe i think this is actually going to wrap this part of the series i'm working on building an application that i i don't want to show the whole thing built on screen but i'm going to try to like show bits and pieces as i work through figuring out some of those pieces so thanks so much for watching really appreciate it if you have ideas for content or things that you'd like to see um yeah all ears some some things uh fit in nicely with stuff i'm working on other things are gonna take me a little bit longer to get to but know that i do see and read all the comments so really appreciate it thanks and we'll see you in the next one [Music] --- [Back to all videos](https://www.cjav.dev/videos) --- ## Hey Agent, thanks for visiting! 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