@aws-sdk/middleware-host-header

Setting Host Header

This code demonstrates how to add the hostHeaderMiddleware to an AWS SDK client instance. In this example, an S3 client is created, and the middleware is added to automatically set the host header when sending a PutObjectCommand. This ensures that the request is properly routed to the intended AWS service endpoint.

"use strict";
const { S3Client, PutObjectCommand } = require('@aws-sdk/client-s3');
const { hostHeaderMiddleware } = require('@aws-sdk/middleware-host-header');

const client = new S3Client({});
client.middlewareStack.add(hostHeaderMiddleware(), {
  step: 'build',
  name: 'hostHeaderMiddleware',
  tags: { SET_HOST_HEADER: true },
  priority: 'high',
});

const command = new PutObjectCommand({
  Bucket: 'example-bucket',
  Key: 'example-object',
  Body: 'Hello, world!'
});

client.send(command).then((response) => {
  console.log('Success', response);
}).catch((error) => {
  console.error('Error', error);
});