Cannot find name 'ReadableStream'.

[fishcharlie]

Describe the bug

Cannot find name 'ReadableStream'.

Your environment

SDK version number

@aws-sdk/client-s3@3.42.0

Is the issue in the browser/Node.js/ReactNative?

Node.js

Details of the browser/Node.js/ReactNative version

node -v
v16.13.0

Steps to reproduce

import {S3} from "@aws-sdk/client-s3";

(async () => {
	const s3Client = new S3({});
	const data = (await s3Client.getObject({
		"Bucket": "mybucket",
		"Key": "data.txt"
	}));

	console.log(data.Body);
})();

Observed behavior

node_modules/@aws-sdk/client-s3/dist-types/models/models_0.d.ts:6050:23 - error TS2304: Cannot find name 'ReadableStream'.

6050     Body?: Readable | ReadableStream | Blob;
                           ~~~~~~~~~~~~~~

node_modules/@aws-sdk/client-s3/dist-types/models/models_0.d.ts:6697:23 - error TS2304: Cannot find name 'ReadableStream'.

6697     Body?: Readable | ReadableStream | Blob;
                           ~~~~~~~~~~~~~~

node_modules/@aws-sdk/client-s3/dist-types/models/models_0.d.ts:9081:23 - error TS2304: Cannot find name 'ReadableStream'.

9081     Body?: Readable | ReadableStream | Blob;
                           ~~~~~~~~~~~~~~

node_modules/@aws-sdk/client-s3/dist-types/models/models_1.d.ts:837:23 - error TS2304: Cannot find name 'ReadableStream'.

837     Body?: Readable | ReadableStream | Blob;
                          ~~~~~~~~~~~~~~

node_modules/@aws-sdk/client-s3/dist-types/models/models_1.d.ts:1116:23 - error TS2304: Cannot find name 'ReadableStream'.

1116     Body?: Readable | ReadableStream | Blob;
                           ~~~~~~~~~~~~~~

Expected behavior

No TypeScript errors

Screenshots

Additional context

Also, when running this code, it doesn't print the contents, but instead a large object that looks like a response object. It should print the contents of the file.

[vudh1]

Hi @fishcharlie, thanks for reaching out. I am not able to reproduce this. Can you show how you set up your credentials and region configuration?

[fishcharlie]

@vudh1 I don't think credentials or region is relevant here. Both are just the default environment variables tho. Nothing passed into the object itself.

Here you can find a link that will expire in 1 week that contains a zip file of a project used to reproduce this: https://fishcharliepersonalbucket.s3-us-west-2.amazonaws.com/tmp.zip?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJ4K33MVV3APAWBLQ/20211127/us-west-2/s3/aws4_request&X-Amz-Date=20211127T001149Z&X-Amz-Expires=604800&X-Amz-SignedHeaders=host&X-Amz-Signature=e3cb3d78504e039905daa374bac615606a6f6e72b1d8defd6f414d717b705863.

With that you should be able to run npm run build and notice errors in the output.

---

Or if you don't want to download that, you can do the following:

1. npm i @aws-sdk/client-s3 typescript @types/node
2. Create lib/index.ts with the exact contents listed above
3. Set tsconfig.json to the following:

{
	"compilerOptions": {
		"module": "commonjs",
		"moduleResolution": "node",
		"lib": ["es2015"],
		"target": "es2017",
		"outDir": "dist",
		"sourceMap": true,
		"declaration": true,
		"noImplicitThis": true,
		"strict": false
	},
	"include": ["./lib/**/*"]
}

4. Run npx tsc

---

Hopefully this helps. Let me know if I can help any further.

[StevenGBrown]

I had the same errors and a similar one from @aws-sdk/util-dynamodb: Cannot find name 'File'.

Was able to build after adding "dom" to the libs in tsconfig.json.
https://stackoverflow.com/a/66275649

[hteek]

Adding "dom" to the libs section of your tsconfig.json is not a solution. If you are writing constructs with aws jsii the tsconfig.jsonis generated and not editable. This dependency makes it unusable in non-browser environments in my opinion.

[jfirebaugh]

This is a duplicate of #2896.

[shuzootani]

#1920 (comment)

[nwalters512]

I started encountering this after the changes from #3779 were pulled into my project. I can work around this by adding either "lib": ["DOM"] or "skipLibCheck": true to my tsconfig.json, but neither of those is particularly appealing.

../../node_modules/@aws-sdk/types/dist-types/serde.d.ts(58,33): error TS2304: Cannot find name 'ReadableStream'.

[barryhagan]

The other option is to use declaration merging to stub out the missing interface that aws-sdk assumes is available. Add this where you are exporting code that uses the SDK:

declare global {
     interface ReadableStream {}
 }

That should allow you to compile without hauling in the entire DOM lib.

[ElihuJ]

The other option is to use declaration merging to stub out the missing interface that aws-sdk assumes is available. Add this where you are exporting code that uses the SDK:

declare global {
     interface ReadableStream {}
 }

That should allow you to compile without hauling in the entire DOM lib.

Good enough to keep it running

[github-actions]

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