feat(ok_http): add user-agent

[denysvitali]

• I’ve reviewed the contributor guide and applied the relevant portions to this PR.

---

This adds an userAgent configuration field as with other HTTP libraries. This allows more flexibility in migrating from dart:io's HTTP to OkHttp.

[github-actions]

PR Health

Breaking changes ✔️

Package	Change	Current Version	New Version	Needed Version	Looking good?
ok_http	Non-Breaking	0.1.0	0.1.1-wip	0.1.1	✔️

This check can be disabled by tagging the PR with skip-breaking-check.

Changelog Entry ❗

Package	Changed Files
package:ok_http	pkgs/ok_http/lib/src/ok_http_client.dart

Changes to files need to be accounted for in their respective changelogs.

This check can be disabled by tagging the PR with skip-changelog-check.

Coverage ⚠️

File	Coverage
pkgs/ok_http/lib/src/ok_http_client.dart	💔 Not covered

This check for test coverage is informational (issues shown here will not fail the PR).

This check can be disabled by tagging the PR with skip-coverage-check.

API leaks ⚠️

The following packages contain symbols visible in the public API, but not exported by the library. Export these symbols or remove them from your publicly visible API.

Package	Leaked API symbol	Leaking sources
ok_http	$Certificate$NullableType	jni/bindings.dart::Certificate::nullableType
ok_http	$Certificate$Type	jni/bindings.dart::Certificate::type
ok_http	PublicKey	jni/bindings.dart::Certificate::verify::publicKey jni/bindings.dart::$PublicKey$NullableType jni/bindings.dart::$PublicKey$NullableType::nullableType jni/bindings.dart::$PublicKey$Type jni/bindings.dart::$PublicKey$Type::nullableType jni/bindings.dart::Certificate::verify$1::publicKey jni/bindings.dart::Certificate::verify$2::publicKey jni/bindings.dart::Certificate::getPublicKey jni/bindings.dart::X509Certificate::verify2::publicKey
ok_http	$PublicKey$NullableType	jni/bindings.dart::PublicKey::nullableType
ok_http	$PublicKey$Type	jni/bindings.dart::PublicKey::type
ok_http	$PublicKey	jni/bindings.dart::PublicKey::implementIn::$impl jni/bindings.dart::PublicKey::implement::$impl
ok_http	$X509Certificate$NullableType	jni/bindings.dart::X509Certificate::nullableType
ok_http	$X509Certificate$Type	jni/bindings.dart::X509Certificate::type
ok_http	$PrivateKey$NullableType	jni/bindings.dart::PrivateKey::nullableType
ok_http	$PrivateKey$Type	jni/bindings.dart::PrivateKey::type
ok_http	$PrivateKey	jni/bindings.dart::PrivateKey::implementIn::$impl jni/bindings.dart::PrivateKey::implement::$impl

This check can be disabled by tagging the PR with skip-leaking-check.

License Headers ✔️

// Copyright (c) 2025, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

Files
no missing headers

All source files should start with a license header.

Unrelated files missing license headers

Files
pkgs/http/example/main.dart

This check can be disabled by tagging the PR with skip-license-check.

[brianquinlan]

Could you add a test here: https://github.com/dart-lang/http/blob/master/pkgs/ok_http/example/integration_test/client_configuration_test.dart

[brianquinlan]

Could you add dart doc for this?

[github-actions]

Without additional information we're not able to resolve this PR. Feel free to add more info or respond to any questions above. Thanks for your contribution!