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Interface: UrlAPI

Defined in: packages/core/src/runtime.ts:267

URL operations interface Subset of Node.js url module

Properties​

parse()​

parse: {(urlString): UrlWithStringQuery; (urlString, parseQueryString, slashesDenoteHost?): UrlWithStringQuery; (urlString, parseQueryString, slashesDenoteHost?): UrlWithParsedQuery; (urlString, parseQueryString, slashesDenoteHost?): Url; }

Defined in: packages/core/src/runtime.ts:268

Call Signature​

(urlString): UrlWithStringQuery

The url.parse() method takes a URL string, parses it, and returns a URL object.

A TypeError is thrown if urlString is not a string.

A URIError is thrown if the auth property is present but cannot be decoded.

url.parse() uses a lenient, non-standard algorithm for parsing URL strings. It is prone to security issues such as host name spoofing and incorrect handling of usernames and passwords. Do not use with untrusted input. CVEs are not issued for url.parse() vulnerabilities. Use the WHATWG URL API instead.

Parameters​
urlString​

string

The URL string to parse.

Returns​

UrlWithStringQuery

Since​

v0.1.25

Deprecated​

Use the WHATWG URL API instead.

Call Signature​

(urlString, parseQueryString, slashesDenoteHost?): UrlWithStringQuery

The url.parse() method takes a URL string, parses it, and returns a URL object.

A TypeError is thrown if urlString is not a string.

A URIError is thrown if the auth property is present but cannot be decoded.

url.parse() uses a lenient, non-standard algorithm for parsing URL strings. It is prone to security issues such as host name spoofing and incorrect handling of usernames and passwords. Do not use with untrusted input. CVEs are not issued for url.parse() vulnerabilities. Use the WHATWG URL API instead.

Parameters​
urlString​

string

The URL string to parse.

parseQueryString​

If true, the query property will always be set to an object returned by the querystring module's parse() method. If false, the query property on the returned URL object will be an unparsed, undecoded string.

false | undefined

slashesDenoteHost?​

boolean

If true, the first token after the literal string // and preceding the next / will be interpreted as the host. For instance, given //foo/bar, the result would be {host: 'foo', pathname: '/bar'} rather than {pathname: '//foo/bar'}.

Returns​

UrlWithStringQuery

Since​

v0.1.25

Deprecated​

Use the WHATWG URL API instead.

Call Signature​

(urlString, parseQueryString, slashesDenoteHost?): UrlWithParsedQuery

The url.parse() method takes a URL string, parses it, and returns a URL object.

A TypeError is thrown if urlString is not a string.

A URIError is thrown if the auth property is present but cannot be decoded.

url.parse() uses a lenient, non-standard algorithm for parsing URL strings. It is prone to security issues such as host name spoofing and incorrect handling of usernames and passwords. Do not use with untrusted input. CVEs are not issued for url.parse() vulnerabilities. Use the WHATWG URL API instead.

Parameters​
urlString​

string

The URL string to parse.

parseQueryString​

true

If true, the query property will always be set to an object returned by the querystring module's parse() method. If false, the query property on the returned URL object will be an unparsed, undecoded string.

slashesDenoteHost?​

boolean

If true, the first token after the literal string // and preceding the next / will be interpreted as the host. For instance, given //foo/bar, the result would be {host: 'foo', pathname: '/bar'} rather than {pathname: '//foo/bar'}.

Returns​

UrlWithParsedQuery

Since​

v0.1.25

Deprecated​

Use the WHATWG URL API instead.

Call Signature​

(urlString, parseQueryString, slashesDenoteHost?): Url

The url.parse() method takes a URL string, parses it, and returns a URL object.

A TypeError is thrown if urlString is not a string.

A URIError is thrown if the auth property is present but cannot be decoded.

url.parse() uses a lenient, non-standard algorithm for parsing URL strings. It is prone to security issues such as host name spoofing and incorrect handling of usernames and passwords. Do not use with untrusted input. CVEs are not issued for url.parse() vulnerabilities. Use the WHATWG URL API instead.

Parameters​
urlString​

string

The URL string to parse.

parseQueryString​

boolean

If true, the query property will always be set to an object returned by the querystring module's parse() method. If false, the query property on the returned URL object will be an unparsed, undecoded string.

slashesDenoteHost?​

boolean

If true, the first token after the literal string // and preceding the next / will be interpreted as the host. For instance, given //foo/bar, the result would be {host: 'foo', pathname: '/bar'} rather than {pathname: '//foo/bar'}.

Returns​

Url

Since​

v0.1.25

Deprecated​

Use the WHATWG URL API instead.

format()​

format: {(urlObject, options?): string; (urlObject): string; }

Defined in: packages/core/src/runtime.ts:269

Call Signature​

(urlObject, options?): string

The url.format() method returns a formatted URL string derived from urlObject.

import url from 'node:url';
url.format({
  protocol: 'https',
  hostname: 'example.com',
  pathname: '/some/path',
  query: {
    page: 1,
    format: 'json',
  },
});

// => 'https://example.com/some/path?page=1&format=json'

If urlObject is not an object or a string, url.format() will throw a TypeError.

The formatting process operates as follows:

  • A new empty string result is created.
  • If urlObject.protocol is a string, it is appended as-is to result.
  • Otherwise, if urlObject.protocol is not undefined and is not a string, an Error is thrown.
  • For all string values of urlObject.protocol that do not end with an ASCII colon (:) character, the literal string : will be appended to result.
  • If either of the following conditions is true, then the literal string // will be appended to result:
    • urlObject.slashes property is true;
    • urlObject.protocol begins with http, https, ftp, gopher, or file;
  • If the value of the urlObject.auth property is truthy, and either urlObject.host or urlObject.hostname are not undefined, the value of urlObject.auth will be coerced into a string and appended to result followed by the literal string @.
  • If the urlObject.host property is undefined then:
    • If the urlObject.hostname is a string, it is appended to result.
    • Otherwise, if urlObject.hostname is not undefined and is not a string, an Error is thrown.
    • If the urlObject.port property value is truthy, and urlObject.hostname is not undefined:
      • The literal string : is appended to result, and
      • The value of urlObject.port is coerced to a string and appended to result.
  • Otherwise, if the urlObject.host property value is truthy, the value of urlObject.host is coerced to a string and appended to result.
  • If the urlObject.pathname property is a string that is not an empty string:
    • If the urlObject.pathname does not start with an ASCII forward slash (/), then the literal string '/' is appended to result.
    • The value of urlObject.pathname is appended to result.
  • Otherwise, if urlObject.pathname is not undefined and is not a string, an Error is thrown.
  • If the urlObject.search property is undefined and if the urlObject.queryproperty is an Object, the literal string ? is appended to result followed by the output of calling the querystring module's stringify() method passing the value of urlObject.query.
  • Otherwise, if urlObject.search is a string:
    • If the value of urlObject.search does not start with the ASCII question mark (?) character, the literal string ? is appended to result.
    • The value of urlObject.search is appended to result.
  • Otherwise, if urlObject.search is not undefined and is not a string, an Error is thrown.
  • If the urlObject.hash property is a string:
    • If the value of urlObject.hash does not start with the ASCII hash (#) character, the literal string # is appended to result.
    • The value of urlObject.hash is appended to result.
  • Otherwise, if the urlObject.hash property is not undefined and is not a string, an Error is thrown.
  • result is returned.
Parameters​
urlObject​

URL

A URL object (as returned by url.parse() or constructed otherwise). If a string, it is converted to an object by passing it to url.parse().

options?​

URLFormatOptions

Returns​

string

Since​

v0.1.25

Legacy​

Use the WHATWG URL API instead.

Call Signature​

(urlObject): string

The url.format() method returns a formatted URL string derived from urlObject.

import url from 'node:url';
url.format({
  protocol: 'https',
  hostname: 'example.com',
  pathname: '/some/path',
  query: {
    page: 1,
    format: 'json',
  },
});

// => 'https://example.com/some/path?page=1&format=json'

If urlObject is not an object or a string, url.format() will throw a TypeError.

The formatting process operates as follows:

  • A new empty string result is created.
  • If urlObject.protocol is a string, it is appended as-is to result.
  • Otherwise, if urlObject.protocol is not undefined and is not a string, an Error is thrown.
  • For all string values of urlObject.protocol that do not end with an ASCII colon (:) character, the literal string : will be appended to result.
  • If either of the following conditions is true, then the literal string // will be appended to result:
    • urlObject.slashes property is true;
    • urlObject.protocol begins with http, https, ftp, gopher, or file;
  • If the value of the urlObject.auth property is truthy, and either urlObject.host or urlObject.hostname are not undefined, the value of urlObject.auth will be coerced into a string and appended to result followed by the literal string @.
  • If the urlObject.host property is undefined then:
    • If the urlObject.hostname is a string, it is appended to result.
    • Otherwise, if urlObject.hostname is not undefined and is not a string, an Error is thrown.
    • If the urlObject.port property value is truthy, and urlObject.hostname is not undefined:
      • The literal string : is appended to result, and
      • The value of urlObject.port is coerced to a string and appended to result.
  • Otherwise, if the urlObject.host property value is truthy, the value of urlObject.host is coerced to a string and appended to result.
  • If the urlObject.pathname property is a string that is not an empty string:
    • If the urlObject.pathname does not start with an ASCII forward slash (/), then the literal string '/' is appended to result.
    • The value of urlObject.pathname is appended to result.
  • Otherwise, if urlObject.pathname is not undefined and is not a string, an Error is thrown.
  • If the urlObject.search property is undefined and if the urlObject.queryproperty is an Object, the literal string ? is appended to result followed by the output of calling the querystring module's stringify() method passing the value of urlObject.query.
  • Otherwise, if urlObject.search is a string:
    • If the value of urlObject.search does not start with the ASCII question mark (?) character, the literal string ? is appended to result.
    • The value of urlObject.search is appended to result.
  • Otherwise, if urlObject.search is not undefined and is not a string, an Error is thrown.
  • If the urlObject.hash property is a string:
    • If the value of urlObject.hash does not start with the ASCII hash (#) character, the literal string # is appended to result.
    • The value of urlObject.hash is appended to result.
  • Otherwise, if the urlObject.hash property is not undefined and is not a string, an Error is thrown.
  • result is returned.
Parameters​
urlObject​

A URL object (as returned by url.parse() or constructed otherwise). If a string, it is converted to an object by passing it to url.parse().

string | UrlObject

Returns​

string

Since​

v0.1.25

Legacy​

Use the WHATWG URL API instead.

fileURLToPath()​

fileURLToPath: (url, options?) => string

Defined in: packages/core/src/runtime.ts:270

This function ensures the correct decodings of percent-encoded characters as well as ensuring a cross-platform valid absolute path string.

import { fileURLToPath } from 'node:url';

const __filename = fileURLToPath(import.meta.url);

new URL('file:///C:/path/').pathname;      // Incorrect: /C:/path/
fileURLToPath('file:///C:/path/');         // Correct:   C:\path\ (Windows)

new URL('file://nas/foo.txt').pathname;    // Incorrect: /foo.txt
fileURLToPath('file://nas/foo.txt');       // Correct:   \\nas\foo.txt (Windows)

new URL('file:///你好.txt').pathname;      // Incorrect: /%E4%BD%A0%E5%A5%BD.txt
fileURLToPath('file:///你好.txt');         // Correct:   /你好.txt (POSIX)

new URL('file:///hello world').pathname;   // Incorrect: /hello%20world
fileURLToPath('file:///hello world');      // Correct:   /hello world (POSIX)

Parameters​

url​

The file URL string or URL object to convert to a path.

string | URL

options?​

FileUrlToPathOptions

Returns​

string

The fully-resolved platform-specific Node.js file path.

Since​

v10.12.0