Improvements for "StringValuesBuilder#appendAll"

[otobrglez]

Hey!

While using Ktor, I found that it could be more ergonomic if StringValuesBuilder also supported mutations with maps. This is my humble improvement that could make this experience better.

Subsystem
ktor-utils

Motivation
I wanted to build URLs with something like this:

val builder = URLBuilder("https://github.com").apply {
    parameters.appendAll(mapOf("foo" to "bar", "baz" to "qux"))
    parameters.appendAllIterable(mapOf("test" to listOf("1", "2", "3")))
}

println(builder.buildString())
// => https://github.com?foo=bar&baz=qux&test=1&test=2&test=3

Solution

• My PR adds two methods named appendAll to StringValuesBuilder inside StringValues.kt
• One method is for Map<String, String> and another for Map<String, Iterable<String>>
• Classes that implement this interface get these abilities for free as the existing mechanisms are reused (such as append and appendAll)

P.S.: Please be gentle, as this is my first PR to Ktor.

Regards

- Oto

[coderabbitai]

Walkthrough

The interface StringValuesBuilder in the Ktor utilities was updated with two new overloaded appendAll methods that accept maps as parameters. These methods enable appending entries from either a Map<String, String> or a Map<String, Iterable<String>> to the builder. The appendMissing method's position was adjusted in the interface.

Changes

File(s)	Change Summary
ktor-utils/common/src/io/ktor/util/StringValues.kt	Added two overloaded appendAll methods to StringValuesBuilder for accepting maps; reordered appendMissing in the interface.

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Reviewing files that changed from the base of the PR and between 07731f1 and ef228c5.

📒 Files selected for processing (1)

• ktor-utils/common/src/io/ktor/util/StringValues.kt (1 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• ktor-utils/common/src/io/ktor/util/StringValues.kt

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[bjhham]

Looks good, could you please run ./gradlew apiDump and commit the result to update the API snapshot?