[Feature]: Basic support for AWS.Config

[trivikr]

Self-service

• I'd be willing to implement this feature

Problem

The configuration set using AWS.Config is not transformed.

Example input:

import AWS from "aws-sdk";

const client = new AWS.DynamoDB(
  new AWS.Config({ region: "us-east-1" })
);
console.log(await client.listTables().promise());

Solution

Expected output:

import { DynamoDB } from "@aws-sdk/client-dynamodb";

const client = new DynamoDB({ region: "us-east-1" });
console.log(await client.listTables());

The basic support should update any Config parameters which are renamed listed in UPGRADING.md.

Alternatives

Manually removing the AWS.Config call

Additional context

No response

[trivikr]

We'll start with adding basic support, i.e. configuration keys which are straightforward:

• key name or type hasn't changed, like region
  • Action: key-value will be retained
• key name is deprecated with some default behavior, like correctClockSkew or paramValidation
  • Action: deprecation comment will be added with steps.
• key name is renamed, like maxRetries to maxAttempts
  • Action: key will be renamed. Comment about the value, if any, will be added.

Example input:

const config = new AWS.Config({
  region: "us-east-1",
  correctClockSkew: true,
  maxRetries: 1,
});

Example output:

const config = {
  region: "us-east-1",

  /**
   * The key correctClockSkew is no longer supported in v3, and can be removed.
   * @deprecated v3 always applies a clock skew correction by default.
   */
  correctClockSkew: true,

  /**
   * The key maxRetries was changed to maxAttempts.
   * The value of maxAttempts needs to be maxRetries + 1.
   */
  maxAttempts: 1,
};

[trivikr]

For unsupported config keys, we'll add docs

  /**
   * The tranformation for httpOptions is not implemented yet.
   * Refer to UPGRADING.md on aws-sdk-js-v3 for changes.
   * Optionally, create or upvote a feature request on aws-sdk-js-codemod GitHub repository for this config key.
   */
  httpOptions: {
    connectTimeout: 1000,
  },

[github-actions]

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