28 lines
921 B
JavaScript
28 lines
921 B
JavaScript
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import { escapeUri } from "@smithy/util-uri-escape";
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import { SIGNATURE_HEADER } from "./constants";
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export const getCanonicalQuery = ({ query = {} }) => {
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const keys = [];
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const serialized = {};
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for (const key of Object.keys(query).sort()) {
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if (key.toLowerCase() === SIGNATURE_HEADER) {
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continue;
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}
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keys.push(key);
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const value = query[key];
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if (typeof value === "string") {
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serialized[key] = `${escapeUri(key)}=${escapeUri(value)}`;
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}
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else if (Array.isArray(value)) {
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serialized[key] = value
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.slice(0)
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.reduce((encoded, value) => encoded.concat([`${escapeUri(key)}=${escapeUri(value)}`]), [])
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.sort()
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.join("&");
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}
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}
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return keys
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.map((key) => serialized[key])
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.filter((serialized) => serialized)
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.join("&");
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};
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