mpp-sdk/lib/utils/headers.js

SDK to talk to the Memento Payments Platform

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseLinkHeader = void 0;
const parseLinkHeaderAttribute = (property) => {
    const r = /([a-z]+)\="?([a-zA-Z]+)"?/;
    const match = property.match(r);
    if (!match || match.length < 3) {
        return undefined;
    }
    return [match[1], match[2]];
};
const parseLinkHeader = (linkHeader) => {
    const tokens = linkHeader.split(",");
    const links = [];
    for (const token of tokens) {
        const items = token.split("; ");
        if (items.length <= 0) {
            continue;
        }
        // The uri is returned surrounded by angle brackets so we remove them
        const uri = items[0].slice(1, -1);
        const link = {
            uri,
            attrs: {},
        };
        // Loop through the links attribute list and parse it
        for (let i = 1; i < items.length; i++) {
            // Parse the attribute, if nothing is returned it is considered invalid
            // and skipped
            const attr = parseLinkHeaderAttribute(items[i]);
            if (!attr) {
                continue;
            }
            // Collect the attributes
            const [key, value] = attr;
            link.attrs[key] = value;
        }
        links.push(link);
    }
    return links;
};
exports.parseLinkHeader = parseLinkHeader;