Dart Uri origin
Syntax & Examples

Uri.origin property

The `origin` property in Dart's Uri class returns the origin of the URI.

Syntax of Uri.origin

The syntax of Uri.origin property is:

 String origin

This origin property of Uri returns the origin of the URI in the form scheme://host:port for the schemes http and https.

Return Type

Uri.origin returns value of type String.


✐ Examples

1 HTTP URI with port

In this example,

  1. We create a Uri object uri1 by parsing the string 'http://example.com/path'.
  2. We use the origin property to get the origin of the URI, which is 'http://example.com'.
  3. We then print the result to standard output.

Dart Program

void main() {
  Uri uri1 = Uri.parse('http://example.com/path');
  String origin1 = uri1.origin;
  print('Origin of URI 1: $origin1');
}

Output

Origin of URI 1: http://example.com

2 HTTPS URI with port

In this example,

  1. We create a Uri object uri2 by parsing the string 'https://example.com:8080/path'.
  2. We use the origin property to get the origin of the URI, which is 'https://example.com:8080'.
  3. We then print the result to standard output.

Dart Program

void main() {
  Uri uri2 = Uri.parse('https://example.com:8080/path');
  String origin2 = uri2.origin;
  print('Origin of URI 2: $origin2');
}

Output

Origin of URI 2: https://example.com:8080

3 URI without scheme

In this example,

  1. We create a Uri object uri3 by parsing the string 'file:///path/to/file'.
  2. We use the origin property, which returns an empty string as there is no scheme in the URI.
  3. We then print the result to standard output.

Dart Program

void main() {
  Uri uri3 = Uri.parse('file:///path/to/file');
  String origin3 = uri3.origin;
  print('Origin of URI 3: $origin3');
}

Output

Origin of URI 3:

Summary

In this Dart tutorial, we learned about origin property of Uri: the syntax and few working examples with output and detailed explanation for each example.