index.js•1.33 kB
import { HttpRequest } from "@smithy/protocol-http";
const CONTENT_LENGTH_HEADER = "content-length";
export function contentLengthMiddleware(bodyLengthChecker) {
return (next) => async (args) => {
const request = args.request;
if (HttpRequest.isInstance(request)) {
const { body, headers } = request;
if (body &&
Object.keys(headers)
.map((str) => str.toLowerCase())
.indexOf(CONTENT_LENGTH_HEADER) === -1) {
try {
const length = bodyLengthChecker(body);
request.headers = {
...request.headers,
[CONTENT_LENGTH_HEADER]: String(length),
};
}
catch (error) {
}
}
}
return next({
...args,
request,
});
};
}
export const contentLengthMiddlewareOptions = {
step: "build",
tags: ["SET_CONTENT_LENGTH", "CONTENT_LENGTH"],
name: "contentLengthMiddleware",
override: true,
};
export const getContentLengthPlugin = (options) => ({
applyToStack: (clientStack) => {
clientStack.add(contentLengthMiddleware(options.bodyLengthChecker), contentLengthMiddlewareOptions);
},
});