@aws-sdk/credential-providers

instanceが自動で読み込んでくれるやつ

keyを発行しないで済む

code:ts

import { S3Client, ListBucketsCommand } from '@aws-sdk/client-s3';

import { fromInstanceMetadata } from '@aws-sdk/credential-providers';

const credentials = fromInstanceMetadata();

const s3Client = new S3Client({

credentials,

})

code:ts

const credentials = fromIni({ profile: 'hogehoge' });

const a = await credentials();

console.log(a);

const client = new S3Client({ credentials });

profile名を指定しないとdefualtのものが表示されていた

code:ts

import { fromInstanceMetadata, fromEnv } from '@aws-sdk/credential-providers';

export const createAwsCredentials = () => {

if (process.env.NODE_ENV === 'production') {

return fromInstanceMetadata();

} else {

return fromEnv();

}

};