maestro/src/modules/duc/client.config.ts

import { credentials } from '@grpc/grpc-js';
import {
  ClientsProviderAsyncOptions,
  GrpcOptions,
  Transport,
} from '@nestjs/microservices';
import {
  ProtoPackages,
  ProtoPaths,
} from '@dadosfera/protospack-v2/dist/lib/Duc';

export class DucClient {
  public name = 'DucClient';

  private config: GrpcOptions = {
    transport: Transport.GRPC,
    options: {
      url: process.env.DUC_URL,
      package: [ProtoPackages.WritePackage, ProtoPackages.ReadPackage],
      credentials:
        process.env.LOCAL_ENV || process.env.ENV === 'local'
          ? undefined
          : credentials.createSsl(),
      protoPath: [ProtoPaths.WriteFilePath, ProtoPaths.ReadFilePath],
      loader: {
        keepCase: true,
        enums: String,
        objects: true,
        arrays: true,
      },
    },
  };

  providerOptions: ClientsProviderAsyncOptions = {
    name: this.name,
    ...this.config,
  };
}