npm-registry-sdk/dist/utils/request.js

A fully type-safe client library for the npm registry API.

import { RegistryError } from "../error.js";
export async function request(registry, options) {
    const { params, endpoint, ...request } = options;
    const url = new URL(registry + endpoint);
    if (params) {
        for (const [key, value] of Object.entries(params)) {
            if (value)
                url.searchParams.append(key, String(value));
        }
    }
    let urlString = url.origin + url.pathname;
    if (url.search) {
        // Base path; path segments like %2F remain encoded.
        // url.search is the raw, percent-encoded query string (e.g., "?q=scope%3Atypes") or empty.
        // This is needed to make API happy with the qualifiers,
        // as it expects special characters (e.g., ':') in query values to be unencoded.
        // decodeURIComponent("?q=scope%3Atypes") results in "?q=scope:types".
        urlString += decodeURIComponent(url.search);
    }
    const response = await fetch(urlString, {
        method: 'GET',
        signal: request.signal,
        headers: {
            'Content-Type': 'application/json',
            Accept: 'application/json',
            ...request.headers,
        },
    });
    const responseData = await response.json();
    if (!response.ok) {
        throw new RegistryError(responseData.error, responseData.code);
    }
    return responseData;
}
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