Cloudflare Workers Reference

PropelAuth's Cloudflare Workers library provides all the building blocks you need to add authentication to your Cloudflare Workers projects.

Installation

npm install @propelauth/cloudflare-worker

Initialize

initAuth performs a one-time initialization of the library. It will verify your apiKey is correct and fetch the metadata needed to verify access tokens in validateAccessTokenAndGetUserClass.

You can find the authUrl, apiKey, and verifierKey in the Backend Integration section in your PropelAuth dashboard.

import { initAuth } from '@propelauth/cloudflare-worker';

const {
    validateAccessTokenAndGetUserClass
    // ...
} = initAuth({
    authUrl: "REPLACE_ME",
    apiKey: "REPLACE_ME", 
    verifierKey: "REPLACE_ME"
});

After initializing auth, you can verify access tokens by passing it in the Authorization header (formatted Bearer TOKEN) to validateAccessTokenAndGetUserClass. You can see more information about the User Class here.

const authorizationHeader = // Get the Authorization header from an HTTP request
try {
    const user = await validateAccessTokenAndGetUserClass(authorizationHeader)
    console.log(`Got request from user ${user.userId}`);
} catch (err) {
    // You can return a 401, or continue the request knowing it wasn't sent from a logged-in user
    console.log(`Unauthorized request ${err}`);
}

Verifying the access token doesn't require an external request.

Authorization / Organizations

You can also verify which organizations the user is in, and which roles and permissions they have in each organization all through the User Class

Check Org Membership

Verify that the request was made by a valid user and that the user is a member of the specified organization.

const authorizationHeader = // Get the Authorization header from an HTTP request
const orgId = // get the orgId from somewhere, such as the request URL
try {
    const user = await validateAccessTokenAndGetUserClass(authorizationHeader)
    const org = user.getOrg(orgId)
    if (!org) {
        // return a 403
    }
    console.log(`Got request from user ${user.userId} for org ${org.orgName}`);
} catch (err) {
    // You can return a 401, or continue the request knowing it wasn't sent from a logged-in user
    console.log(`Unauthorized request ${err}`);
}

Check Org Membership and Role

Similar to checking org membership, but will also verify that the user has a specific Role in the organization.

A user has a Role within an organization. By default, the available roles are Owner, Admin, or Member, but these can be configured. These roles are also hierarchical, so Owner > Admin > Member.

const authorizationHeader = // Get the Authorization header from an HTTP request
const orgId = // get the orgId from somewhere, such as the request URL
try {
    const user = await validateAccessTokenAndGetUserClass(authorizationHeader)
    const org = user.getOrg(orgId)
    if (!org || !org.isRole("Admin")) {
        // return a 403
    }
    console.log(`Got request from Admin user ${user.userId} for org ${org.orgName}`);
} catch (err) {
    // You can return a 401, or continue the request knowing it wasn't sent from a logged-in user
    console.log(`Unauthorized request ${err}`);
}

Check Org Membership and Permission

Similar to checking org membership, but will also verify that the user has the specified permission in the organization.

Permissions are arbitrary strings associated with a role. For example, can_view_billing, ProductA::CanCreate, and ReadOnly are all valid permissions. You can create these permissions in the PropelAuth dashboard.

const authorizationHeader = // Get the Authorization header from an HTTP request
const orgId = // get the orgId from somewhere, such as the request URL
try {
    const user = await validateAccessTokenAndGetUserClass(authorizationHeader)
    const org = user.getOrg(orgId)
    if (!org || !org.hasPermission("can_view_billing")) {
        // return a 403
    }
    console.log(`User ${user.userId} has 'can_view_billing' permissions for org ${org.orgName}`);
} catch (err) {
    // You can return a 401, or continue the request knowing it wasn't sent from a logged-in user
    console.log(`Unauthorized request ${err}`);
}

User Class

The User Class contains information about the user that made the request. It also contains methods such as getOrgs() and hasPermission().

const userClass = await validateAccessTokenAndGetUserClass(authorizationHeader);

Name
userId
Type
string
Description
The unique id of the user.
Name
orgIdToOrgMemberInfo
Type
{[orgId: string]: OrgMemberInfo}
Description
A dictionary mapping from organization id to OrgMemberInfo object.
Name
email
Type
string
Description
The email of the user.
Name
firstName
Type
string
Description
The first name of the user.
Name
lastName
Type
string
Description
The last name of the user.
Name
username
Type
string
Description
The username of the user.
Name
properties
Type
{[key: string]: unknown}
Description
A dictionary of custom properties associated with the user.
Name
loginMethod
Type
object
Description
The method the user used to log in. Returns the Login Method Property.
Name
activeOrgId
Type
string | undefined
Description
Returns the ID of the Active Org, if the user has an Active Org set.
Name
legacyUserId
Type
string
Description
If the user was migrated using our Migration API, this will be the id of the user in the legacy system.
Name
impersonatorUserId
Type
string
Description
If the user is being impersonated, this is id of the user that impersonated them.
Name
getActiveOrg()
Type
fn() -> OrgMemberInfo
Description
Returns the OrgMemberInfo of the Active Org.
Name
getOrg()
Type
fn(orgId: string) -> OrgMemberInfo
Description
A method to retrieve OrgMemberInfo of the provided org. Returns undefined if user does not belong to org.
Name
getOrgByName()
Type
fn(orgName: string) -> string
Description
A method to retrieve the OrgMemberInfo of an org by name. Returns undefined if user does not belong to the provided org.
Name
getUserProperty()
Type
fn(key: string)
Description
A method to retrieve the value of the provided property for the user. Returns undefined if no value is set.
Name
getOrgs()
Type
fn() -> OrgMemberInfo[]
Description
A method to retrieve an array of each org the user belongs to.
Name
isImpersonating()
Type
fn() -> boolean
Description
A method to check if the user is being impersonated.
Name
isRole()
Type
fn(orgId: string, role: string) -> boolean
Description
A method to check if the user is the provided role in the provided org.
Name
isAtLeastRole()
Type
fn(orgId: string, role: string) -> boolean
Description
A method to check if the user is at least the provided role in the provided org.
Name
hasPermission()
Type
fn(orgId: string, permission: string) -> boolean
Description
A method to check if the user has the provided permission in the provided org.
Name
hasAllPermissions()
Type
fn(orgId: string, permission: string[]) -> boolean
Description
A method to check if the user has all the provided permissions in the provided org.

OrgMemberInfo

The OrgMemberInfo object contains information about the user's membership in an organization.

Name
orgId
Type
string
Description
The unique id of the organization.
Name
orgName
Type
string
Description
The name of the organization.
Name
orgMetadata
Type
object
Description
The metadata associated with the organization.
Name
urlSafeOrgName
Type
string
Description
The URL-safe name of the organization.
Name
userAssignedRole
Type
string
Description
The role of the user in the organization.
Name
userInheritedRolesPlusCurrentRole
Type
string[]
Description
The role of the user within this organization plus each inherited role.
Name
userPermissions
Type
string[]
Description
A list of permissions the user has in the organization, based on their role.
Name
isRole
Type
fn(role: string) -> boolean
Description
A function that returns true if the user has the specified role in the organization.
Name
isAtLeastRole
Type
fn(role: string) -> boolean
Description
A function that returns true if the user has at least the specified role in the organization.
Name
hasPermission
Type
fn(permission: string) -> boolean
Description
A function that returns true if the user has the specified permission in the organization.
Name
hasAllPermissions
Type
fn(permissions: string[]) -> boolean
Description
A function that returns true if the user has all of the specified permissions in the organization.
Name
orgRoleStructure
Type
string
Description
The role structure set for your project. See multi roles per user for more information.
Name
userAssignedAdditionalRoles
Type
string[]
Description
If using multiple roles per user, returns an array of roles that the user belongs to. Excludes the userAssignedRole.

Calling Backend APIs

You can also use the library to call the PropelAuth APIs directly, allowing you to fetch users, create orgs, and a lot more.

const magicLink = await auth.createMagicLink({
    email: "user@customer.com"
})

See the API Reference for more information.