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POST、请求头与查询参数

发送数据并正确配置请求

POST、请求头与查询参数 是 CoddyKit 上的免费 Kotlin Multiplatform Academy 课时。这是第 3 节课，共 4 节。你可以在下方免费阅读本课时的完整内容 — 然后在浏览器中使用内置代码编辑器和全天候 AI 导师进行实践。这是 Kotlin Multiplatform Academy 学习路径的一部分，你的进度在网页和 CoddyKit 应用中同步。 Kotlin Multiplatform Academy 课程共包含 4 节课。

本课时的部分内容尚未翻译，以英文显示。

Sending Data Up

Reading is half the story. Now you will send data with POST and shape requests using headers and query params.

Call post for Writes

Use client.post when you create or update something on the server, like submitting a new user.

val response = client.post("https://api.example.com/users")

Set a Request Body

Attach data with setBody inside the request block, passing the object you want the server to receive.

client.post(url) { setBody(newUser) }

Tell the Server the Type

Set contentType so the server knows the body is JSON and parses it correctly.

contentType(ContentType.Application.Json)

Add Headers

Use the headers block to send extra metadata, such as an authorization token, with any request.

headers { append("Authorization", "Bearer abc123") }

Single Header Shortcut

For just one header, the header function is shorter and reads cleanly inside the request block.

header("X-App-Version", "1.0.0")

Query Parameters

Add filters or paging with the parameter function, and Ktor appends them to the URL for you.

client.get(url) { parameter("page", 2) }

Several Params at Once

Call parameter multiple times to build a full query string without manual concatenation.

parameter("sort", "name")
parameter("limit", 20)

Read the POST Response

A POST returns a response just like GET, so you can deserialize the created item straight into a typed model.

val created: User = response.body()

Combine It All

Real requests often mix body, headers and params together inside one tidy request block.

client.post(url) { header("Auth", t); setBody(u) }

Same on Every Platform

POST, headers and params all behave identically across Android and iOS, so this request logic stays fully shared.

Quick Check

Which function attaches data to a POST request?

Recap

Use post with setBody and contentType to send data, add metadata with headers, and refine URLs with parameter. All of it stays shared.

常见问题解答

「POST、请求头与查询参数」课时是免费的吗？

是的 — 「POST、请求头与查询参数」的完整文本可在网页上免费阅读。要进行交互式练习（内置代码编辑器和全天候 AI 导师）并解锁 Kotlin Multiplatform Academy 课程的其余内容，请升级到 CoddyKit PRO。 Kotlin Multiplatform Academy 课程共包含 4 节课。

「POST、请求头与查询参数」这节课中我会学到什么？

发送数据并正确配置请求你通过在浏览器中直接运行的动手代码来练习 Kotlin Multiplatform Academy，全天候 AI 导师会在你学习这节课的过程中回答你的问题。

学习 Kotlin Multiplatform Academy 需要有经验吗？

无需任何先前经验。CoddyKit 上的 Kotlin Multiplatform Academy 课程适合初学者到高级学习者，你可以从这里开始或从头开始，按照自己的节奏学习。这是第 3 节课，共 4 节。

「POST、请求头与查询参数」课时需要多长时间？

大多数 CoddyKit 课程大约需要 5–10 分钟。每节课都很精短且互动，所以你能稳步进步，并在网页和应用中从离开的地方继续。

我能在这节 Kotlin Multiplatform Academy 课中编写并运行代码吗？

能。每节 Kotlin Multiplatform Academy 课都包含内置代码编辑器，你可以在浏览器中直接编写并运行真实代码，并获得即时 AI 反馈 — 无需本地设置。

此课程中的所有课时

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