remix-utils/build/server/respond-to.js

This package contains simple utility functions to use with [React Router](https://reactrouter.com/).

import { getHeaders } from "./get-headers.js";
import { parseAcceptHeader } from "./parse-accept-header.js";
export function respondTo(requestOrHeaders, handlers) {
    let headers = getHeaders(requestOrHeaders);
    let accept = headers.get("accept");
    if (!accept)
        return handlers.default();
    let types = parseAcceptHeader(accept);
    for (let { type, subtype } of types) {
        let handler = handlers[`${type}/${subtype}`];
        if (handler)
            return handler();
        handler = handlers[subtype];
        if (handler)
            return handler();
        handler = handlers[type];
        if (handler)
            return handler();
    }
    return handlers.default();
}
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