Url React Native Reference Documentation

Url

Current Version: 11.6.1

Chilkat.Url

Parse a URL into its host, path, query, credentials, port, fragment, and TLS details.

Chilkat.Url is a focused URL parsing class. Given a full URL, it extracts the hostname, host type, login, password, path, query string, fragment, port, and SSL/TLS status into easy-to-read properties. It is useful when application code needs to inspect, validate, route, log, or pass URL parts to lower-level networking or API code.

Parse full URLs

Call ParseUrl to break a complete URL into structured properties that can be inspected individually.

Host and host type

Read the hostname and determine whether it is a DNS name, IPv4 address, or IPv6 address.

Path and query

Access the URL path, query string, and combined path-with-query value for request construction or routing.

Login and password

Extract embedded userinfo credentials when a URL contains a login and password component.

Port and TLS status

Determine the explicit or implied port and whether the URL represents an SSL/TLS connection.

Fragment handling

Read the URL fragment separately from the path and query for workflows that need anchor or client-side state information.

Common pattern: Use Url when the application needs to decompose a URL before making a request or applying custom logic. Parse the full URL, read the properties needed by the caller, then pass the relevant pieces to classes such as Chilkat.Http, Chilkat.Rest, or Chilkat.Socket. Use Url for parsing; use the higher-level networking classes to actually send the request.

Object Creation

// npm install @chilkat/react-native react-native-nitro-modules
// (React Native 0.76+ with the New Architecture; then `pod install` for iOS.  The Chilkat
//  native library is downloaded and verified during the native build -- see the package README.)

import { Chilkat, Url } from '@chilkat/react-native'

// Once per app start, before any other Chilkat call:
Chilkat.unlockBundle('Anything for 30-day trial')   // shorthand for new Global().unlockBundle(..)

const url = new Url()
// ... the native object is released when `url` is garbage collected, or now with url.dispose()
new Url()

Creates the underlying native Chilkat object. Url is a Nitro Module HybridObject: use it from the JavaScript thread only (it cannot be passed to a Worklet or another runtime). Every member is synchronous and blocks the JavaScript thread until Chilkat returns; a method that can take a while also exists as a ...Async twin returning a Promise, which runs the same call on a native worker thread so the UI keeps rendering. While such a call is pending, every other call on this object throws, except abort() and assigning onPercentDone / onProgressInfo.

dispose(): void

Releases the native object immediately instead of waiting for garbage collection (useful for a large BinData or an open socket). Calling it more than once is harmless; any other use of the object afterwards throws. An object with a pending ...Async call cannot be disposed until the promise settles.

Errors

A method that can fail throws a plain Error: a method whose only outcome is success or failure returns void and throws on failure; a method producing a string or an object returns it and throws where Chilkat would have returned null. The error's message is "Class.method(...): reason", where the reason is the last informative line of the object's lastErrorText, which holds the full Chilkat log of the failed call. A ...Async twin rejects its promise with the same Error instead of throwing. Properties never throw, and methods that answer a question (has..., is..., ...) return a plain boolean.

try {
  url.someMethod(...)
} catch (e) {
  console.log((e as Error).message)   // Url.someMethod(...): <reason>
  console.log(url.lastErrorText)   // the full Chilkat log of the failed call
}

// The same call without blocking the JavaScript thread:
try {
  await url.someMethodAsync(...)
} catch (e) {
  console.log((e as Error).message)   // Url.someMethodAsync: <reason>
}

Properties

DebugLogFilePath
// read/write
debugLogFilePath: string

If set to a file path, this property logs the LastErrorText of each Chilkat method or property call to the specified file. This logging helps identify the context and history of Chilkat calls leading up to any crash or hang, aiding in debugging.

Enabling the VerboseLogging property provides more detailed information. This property is mainly used for debugging rare instances where a Chilkat method call causes a hang or crash, which should generally not happen.

Possible causes of hangs include:

  • A timeout property set to 0, indicating an infinite timeout.
  • A hang occurring within an event callback in the application code.
  • An internal bug in the Chilkat code causing the hang.

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Frag
// read-only
readonly frag: string
Introduced in version 9.5.0.49

Contains any text following a fragment marker (#) in the URL, excluding the fragment marker. Given the URI http://www.contoso.com/index.htm#main, the fragment is main.

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Host
// read-only
readonly host: string
Introduced in version 9.5.0.49

The DNS host name or IP address part of the URL. For example, if the URL is http://www.contoso.com:8080/, the Host is www.contoso.com. If the URL is https://192.168.1.124/test.html, the Host is 192.168.1.124.

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HostType
// read-only
readonly hostType: string
Introduced in version 9.5.0.49

The type of the host name specified in the URL. Possible values are:

  • dns: The host name is a domain name system (DNS) style host name.
  • ipv4: The host name is an Internet Protocol (IP) version 4 host address.
  • ipv6: The host name is an Internet Protocol (IP) version 6 host address.

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LastErrorHtml
// read-only
readonly lastErrorHtml: string

Provides HTML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastErrorText
// read-only
readonly lastErrorText: string

Provides plain text information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastErrorXml
// read-only
readonly lastErrorXml: string

Provides XML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastMethodSuccess
// read/write
lastMethodSuccess: boolean

Indicates the success or failure of the most recent method call: true means success, false means failure. This property remains unchanged by property setters or getters. This method is present to address challenges in checking for null or Nothing returns in certain programming languages. Note: This property does not apply to methods that return integer values or to boolean-returning methods where the boolean does not indicate success or failure.

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Login
// read-only
readonly login: string
Introduced in version 9.5.0.49

If the URL contains a login and password, this is the login part. For example, if the URL is http://user:password@www.contoso.com/index.htm , then the login is user.

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Password
// read-only
readonly password: string
Introduced in version 9.5.0.49

If the URL contains a login and password, this is the password part. For example, if the URL is http://user:password@www.contoso.com/index.htm , then the password is password.

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Path
// read-only
readonly path: string
Introduced in version 9.5.0.49

The path (and params) part of the URL, excluding the query and fragment. If the URL is: http://www.amazon.com/gp/product/1476752842/ref=s9_psimh_gw_p14_d0_i3?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-1, then the path is /gp/product/1476752842/ref=s9_psimh_gw_p14_d0_i3.

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PathWithQueryParams
// read-only
readonly pathWithQueryParams: string
Introduced in version 9.5.0.58

The path (and params) part of the URL, including the query params, but excluding the fragment. If the URL is: http://www.amazon.com/gp/product/1476752842/ref=s9_psimh_gw_p14_d0_i3?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-1, then then this property returns /gp/product/1476752842/ref=s9_psimh_gw_p14_d0_i3?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-1.

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Port
// read-only
readonly port: number
Introduced in version 9.5.0.49

The port number of the URL.

For example, if the URL is http://www.contoso.com:8080/, the port number is 8080.
If the URL is https://192.168.1.124/test.html, the port number is the default 80.
If the URL is https://www.amazon.com/, the port number is the default SSL/TLS port 443.

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Query
// read-only
readonly query: string
Introduced in version 9.5.0.49

The query part of the URL, excluding the fragment. If the URL is: http://www.amazon.com/gp/product/1476752842/ref=s9_psimh_gw_p14_d0_i3?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-1#frag, then the query is pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-1.

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Scheme
// read-only
readonly scheme: string
Introduced in version 11.6.0

The scheme part of the URL. For example, if the URL is https://www.contoso.com:8080/, the Scheme is https.

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Ssl
// read-only
readonly ssl: boolean
Introduced in version 9.5.0.49

true if the URL indicates SSL/TLS, otherwise false. A URL beginning with https:// indicates SSL/TLS.

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VerboseLogging
// read/write
verboseLogging: boolean

If set to true, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is false. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

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Version
// read-only
readonly version: string

Version of the component/library, such as "10.1.0"

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Methods

ParseUrl
parseUrl(url: string): void
Introduced in version 9.5.0.49

Parses a full URL. After parsing, the various parts of the URL are available iin the properties.

Returns normally on success; throws an Error on failure.

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