@flowcore/nestjs-clerk-guard
v1.0.2
Published
NestJS Library for protecting services using Clerk.com Authentication
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Nestjs Clerk-guard
NestJS Library for protecting services using Clerk.com Authentication
Installation
install with npm:
npm install @flowcore/nestjs-clerk-guard @flowcore/microservice
or yarn:
yarn add @flowcore/nestjs-clerk-guard @flowcore/microservice
If you are using GraphQL, you also need to install the
@nestjs/graphql
package.
Configuration
Import the ClerkGuardModule into your NestJS application and configure it with your Keycloak server's details:
import { ClerkGuardModuleBuilder, ClerkGuardConfigurationSchema } from '@flowcore/nestjs-clerk-guard';
import { ConfigModule, ConfigFactory } from '@flowcore/microservice';
import { AuthGuardBuilder } from "./auth-guard.builder";
const config = ConfigModule.forRoot(
new ConfigFactory()
// ...other configuration schemas
.withSchema(ClerkGuardConfigurationSchema)
// ...other configuration schemas,
);
@Module({
imports: [
config,
// ...other modules
new ClerkGuardModuleBuilder().withConfig(config).build(),
],
providers: [
...new AuthGuardBuilder()
.usingClaimGuard()
.build(),
],
})
export class AppModule {
}
This can then be configured in a service with the following environment variables
| Environment Variable | Description | Type | Default Value | Required |
|----------------------|------------------------------------------------------------------------------------------------|:--------:|---------------|:--------:|
| CLERK_JWKS_URL | The URL to the JWKS endpoint for your Clerk.com application. | string
| | ✅ |
Usage
The AuthGuard
is global and will protect all routes by default. You can use the @Public()
decorator to exclude
routes from the AuthGuard.
import { Public } from '@flowcore/nestjs-clerk-guard';
import { Controller, Get } from '@nestjs/common';
@Controller()
export class AppController {
@Get()
@Public()
getHello(): string {
return 'Hello World!';
}
}
You can also use the @ClaimsRequired()
decorators to protect routes with a ClaimGuard.
The @ClaimsRequired()
decorator accepts a list of
claims. If the user has one of the claims in the token, the route will be accessible.
import { Roles } from '@flowcore/nestjs-clerk-guard';
import { Controller, Get } from '@nestjs/common';
import { ClaimsRequired } from "./claims.decorator";
@Controller()
export class AppController {
@ClaimsRequired(['some_key'])
getHello(): string {
return 'Hello World!';
}
}
For public endpoints like /health
or /metrics
you can use the built-in public endpoints are used to keep these paths
open. If you want to override these defaults or disable them, you can do so by configuring the ClerkGuardModule
using
the ClerkGuardModuleBuilder
:
@Module({
imports: [
config,
// ...other modules
new ClerkGuardModuleBuilder()
.withConfig(config)
.noPublicEndpoints() // for disabling the built-in public endpoints
.overridePublicEndpoints(
[
'/health',
'/metrics',
'/healthz',
],
)
.build(),
],
// ... other provider, controllers etc.
})
export class AppModule {
}
To get access to the user information in the request, you can use the @AuthenticatedUser()
decorator:
import { AuthenticatedUser } from '@flowcore/nestjs-clerk-guard';
import { Controller, Get } from '@nestjs/common';
@Controller()
export class AppController {
@Get()
getHello(@AuthenticatedUser() user: any /* change to match your token */): string {
return 'Hello World!';
}
}
This also works with @Resolvers() in GraphQL.
We hope you find this library useful in your NestJS projects!
Development
yarn install
or with npm:
npm install