51 lines
1.0 KiB
JavaScript
51 lines
1.0 KiB
JavaScript
class Sources {
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static isFullUrl(url) {
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try {
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if(url instanceof URL) {
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return true;
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}
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new URL(url);
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return true;
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} catch (e) {
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// invalid url OR already a local path
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return false;
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}
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}
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static isValidSource(source) {
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// String (url?)
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if(typeof source === "string") {
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return true;
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}
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if(this.isValidComplexSource(source)) {
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return true;
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}
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return false;
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}
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static isValidComplexSource(source) {
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// Async/sync Function
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if(typeof source === "function") {
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return true;
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}
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if(typeof source === "object") {
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// Raw promise
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if(typeof source.then === "function") {
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return true;
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}
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// anything string-able
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if(typeof source.toString === "function") {
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return true;
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}
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}
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return false;
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}
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static getInvalidSourceError(source, errorCause) {
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return new Error("Invalid source: must be a string, function, or Promise. If a function or Promise, you must provide a `toString()` method or an `options.requestId` unique key. Received: " + source, { cause: errorCause });
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}
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}
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module.exports = Sources;
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