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#typescript
Title
# typescript
a

agreeable-librarian-7407

08/31/2023, 5:20 PM
Hey everyone, are there any examples on structuring a typescript pulumi implementation with multiple files? Our current
index.ts
file is starting to get long and I was hoping to split some of the code out into other files and I’m interested in some different methods for structuring that.
d

dry-pilot-49577

08/31/2023, 6:08 PM
We broke our index.ts up a while ago. It now looks like
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// eslint-disable-next-line import/no-unassigned-import
import "./pre.js";

export * from "./outputs.js";
The pre-hook lets us do some environment checks, and then outputs.js (a TS file but we use ESM) works backwards from the outputs. Pulumi takes care of all the dependencies in the graph for us.
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import { dataApi } from "./objects/databases/mongo.js";

// common information about the build (informative)
export { SERVICE_PREFIX } from "./common.js";

// lambda outputs assist with pushing new code or running a service in development
export {
  LAMBDA_GRAPHQL_ARN,
  LAMBDA_GRAPHQL_REGION,
  LAMBDA_GRAPHQL_S3_BUCKET,
  LAMBDA_GRAPHQL_S3_KEY,
  LAMBDA_GRAPHQL_CONFIG,
} from "./objects/lambdas/graphql.js";
// ... other lambdas removed for brevity

// api gateway w/ public URL
export { API_DOMAIN_NAME } from "./objects/gateways/api.js";

// Usable in a staging environment, undef in production environments
export { MONGO_DIRECT_URL } from "./objects/databases/mongo.js";
a

agreeable-librarian-7407

08/31/2023, 7:07 PM
Thanks Jakob!
l

little-cartoon-10569

08/31/2023, 11:07 PM
It's just a normal(ish) Typescript program. You can import modules in the normal way. You can also package up groups of resources into component resources, to make things more modular.
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