@aws-sdk/util-body-length-node

What is @aws-sdk/util-body-length-node?

The @aws-sdk/util-body-length-node package is a utility module from the AWS SDK for JavaScript (v3). It is designed to calculate the body length of HTTP requests in Node.js environments. This is particularly useful when working with AWS services that require content-length headers for request validation. The package provides a straightforward API to accurately determine the length of various types of request bodies, including Buffer, Blob, and string objects.

What are @aws-sdk/util-body-length-node's main functionalities?

Calculate Buffer Body Length

This feature allows you to calculate the length of a Buffer object. It is useful when you need to determine the size of a binary file or data stream before sending it in an HTTP request.

const { calculateBodyLength } = require('@aws-sdk/util-body-length-node');
const buffer = Buffer.from('Hello World');
const length = calculateBodyLength(buffer);
console.log(length); // Outputs: 11

Calculate String Body Length

This feature enables the calculation of the length of a string. It's beneficial when dealing with textual data, ensuring you can set the correct content-length header for HTTP requests.

const { calculateBodyLength } = require('@aws-sdk/util-body-length-node');
const stringBody = 'Hello World';
const length = calculateBodyLength(stringBody);
console.log(length); // Outputs: 11

Other packages similar to @aws-sdk/util-body-length-node

content-length

The 'content-length' package offers functionality to calculate the content length of given data. It supports strings, buffers, and streams. Compared to @aws-sdk/util-body-length-node, it provides broader support for different types of data, including streams, but it is not specifically optimized for or tied to AWS SDK usage.

byte-length

The 'byte-length' package is another utility for calculating the byte length of strings in various encodings. While it focuses on string data and supports multiple encodings, @aws-sdk/util-body-length-node is more focused on AWS SDK integration and supports both Buffer and string types directly.

README

@aws-sdk/util-body-length-node

Determines the length of a request body in node.js

An internal package

Usage

You probably shouldn't, at least directly.

Changelog

3.374.0 (2023-07-20)

Bug Fixes

• packages: fix migrated package imports (#4990) (d800f78)

Features

• client-codecatalyst: This release adds support for updating and deleting spaces and projects in Amazon CodeCatalyst. It also adds support for creating, getting, and deleting source repositories in CodeCatalyst projects. (05a9f89)
• client-connectcases: This release adds the ability to assign a case to a queue or user. (f47d6f4)
• client-lex-models-v2: This release updates type for Channel field in SessionSpecification and UtteranceSpecification (1f77d0a)
• client-route53resolver: This release adds support for Route 53 On Outposts, a new feature that allows customers to run Route 53 Resolver and Resolver endpoints locally on their Outposts. (8acc64c)
• client-s3: Improve performance of S3 clients by simplifying and optimizing endpoint resolution. (72eb598)
• client-sagemaker-featurestore-runtime: Cross account support for SageMaker Feature Store (b0593ab)
• client-sagemaker: Cross account support for SageMaker Feature Store (e4918c1)
• client-securitylake: Adding support for Tags on Create and Resource Tagging API. (596636d)
• client-transcribe: Added API argument --toxicity-detection to startTranscriptionJob API, which allows users to view toxicity scores of submitted audio. (9e7552a)
• smithy-client: update client defaults provider (830cb06)