typing issue with custom grpc callOptions on single operation

[0xb4lamx]

hey! I've faced few typing issues when trying to customize some grpc callOptions per operation.

details

considering that client is created via v1.NewClient() . a request with custom callOptions

    const response = await this.client.checkBulkPermissions(
      checkBulkPermissionsRequest,
      undefined,
      { deadline: Date.now() + config.SPICEDB_GRPC_TIMEOUT_MS }
    );

will build fine, but on runtime, gRPC calls will fail with:

 Trace: Error: Incorrect arguments passed
        at Proxy.checkOptionalUnaryResponseArguments (/xxxxxxx/api/node_modules/.pnpm/@grpc+grpc-js@1.12.5/node_modules/@grpc/grpc-js/src/client.ts:229:15)
        at Proxy.makeUnaryRequest (/xxxxxxx/api/node_modules/.pnpm/@grpc+grpc-js@1.12.5/node_modules/@grpc/grpc-js/src/client.ts:277:12)
        at Proxy.checkBulkPermissions 

==
but doing it this way

    const response = await this.client.checkBulkPermissions(
      checkBulkPermissionsRequest,
      { deadline: Date.now() + config.SPICEDB_GRPC_TIMEOUT_MS }
    );

works fine, but will TS type fail 🤔

env

"@authzed/authzed-node": "^1.1.1",
"typescript": "5.4.4",
node v22

[tstirrat15]

I think I see the issue.

https://github.com/authzed/authzed-node/blob/main/src/authzedapi/authzed/api/v1/permission_service.grpc-client.ts#L82-L84

There's multiple overloads of the checkBulkPermissions function. We're then patching over the client using promisify, and I think it's effectively selecting the wrong overload, which is why typescript and the runtime appear to disagree.

We're doing some mucking around with the types in https://github.com/authzed/authzed-node/blob/main/src/types.ts#L80-L106, which is probably the source of the issue. I've at least got a reproduction locally.

I'll keep you posted.