Prisma•2mo ago

Pulse Type

Is there a good way to get the type of a Prisma Client instance with Pulse before instantiating it? For context, I have a class that will eventually have a member populated with a Pulse DB instance:

@Module({})
export class VendorModule implements OnModuleInit {
    private pulse: typeof pulseType;
    constructor(@Inject('PRISMA') private prisma: PrismaClient) {}

    async onModuleInit() {
        this.pulse = this.prisma.$extends(
            withPulse({
                apiKey: process.env.PULSE_API_KEY,
            }),
        );
        await this.setupListeners();
    }

    private async setupListeners() {
        this.pulse.user.stream(/*...*/);
    }
}

@Module({})
export class VendorModule implements OnModuleInit {
    private pulse: typeof pulseType;
    constructor(@Inject('PRISMA') private prisma: PrismaClient) {}

    async onModuleInit() {
        this.pulse = this.prisma.$extends(
            withPulse({
                apiKey: process.env.PULSE_API_KEY,
            }),
        );
        await this.setupListeners();
    }

    private async setupListeners() {
        this.pulse.user.stream(/*...*/);
    }
}

10 Replies

Sabin Adams•2mo ago

Currently I'm doing this to get that type but am not sure if this is a good way to do it:

const pulseType = new PrismaClient().$extends(withPulse({ apiKey: 'random-string' }));

const pulseType = new PrismaClient().$extends(withPulse({ apiKey: 'random-string' }));

Nurul•2mo ago

Hey @Sabin Adams 👋 Hope you are doing great! 🙂 Your approach looks good. I am not aware of any other way. An alternative you may consider is doing something like:

// Function to get the extended client type
const getExtendedClientType = () => {
  return new PrismaClient().$extends(
    withPulse({
      apiKey: process.env.PULSE_API_KEY,
    })
  );
};

// Type of the extended client
type ExtendedPrismaClient = ReturnType<typeof getExtendedClientType>;

// Function to get the extended client type
const getExtendedClientType = () => {
  return new PrismaClient().$extends(
    withPulse({
      apiKey: process.env.PULSE_API_KEY,
    })
  );
};

// Type of the extended client
type ExtendedPrismaClient = ReturnType<typeof getExtendedClientType>;

Sabin Adams•2mo ago

Thanks!

Tyler Benfield•2mo ago

The ReturnType approach is my go-to for getting the type of any extended Prisma Client. Let us know what you think of Pulse 😉

Sabin Adams•4w ago

Thanks! It’s powering my dbchange service that keeps the db and Algolia in sync 😁 No problems so far other than spending a bunch of time with different db’s trying to get it to work with pulse. A lot of the docs and integrations seemed out of date Finally got it working with Supabase (not sure how, just started working 🤷🏻)

Tyler Benfield•4w ago

A lot of the docs and integrations seemed out of date

Prisma docs or database vendor docs?

Sabin Adams•4w ago

Prisma docs

Ankur Datta•4w ago

Hey @Sabin Adams 👋🏾 , hope you're doing well 😃 !

A lot of the docs and integrations seemed out of date

Could you share which part of the docs did you find out to be outdated 🙏🏾 ?

Sabin Adams•4w ago

Mostly the integration docs for Pulse. Specifically for Neon and Railway. The Railway integration doesn’t run (unless I goofed) and the Neon UI is different from what’s shown in the docs I can give more specifics when I’m at a computer 😅 For the record, once I got things working it’s been seamless :heart:

Ankur Datta•4w ago

Thanks @Sabin Adams !

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Programming

Pulse Type