70 lines
1.7 KiB
Plaintext
70 lines
1.7 KiB
Plaintext
# 自包含后端示例：随机回环端口，只请求一次，然后排空并关闭。
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type Context {
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prefix: Text
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requests: Channel<Int>
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}
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route(request: dever.http.Request, context: Context) (
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response: dever.http.Response
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) {
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send(context.requests, 1)
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response = dever.http.Response {
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status = 200
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headers = [dever.http.header("Content-Type", "text/plain; charset=utf-8")]
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body = dever.bytes.from_text(context.prefix + request.target)
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}
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}
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serve(listener: dever.system.Listener, context: Context) () {
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dever.system.http_serve(route, listener, dever.http.default_limits(), context)
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}
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expired() () {
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blocking(dever.io.println("服务排空超时，剩余任务已停止"))
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}
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count(value: Int) (text: Text) {
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text = "requests = " + int.to_text(value)
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}
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count(value: null) (text: Text) {
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text = "request channel ended"
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}
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main() () {
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listener = dever.net.listen("127.0.0.1", 0)
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port = dever.net.port(listener)
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requests = channel(Int, 1)
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server = run(
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serve(
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listener,
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Context {
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prefix = "Hello "
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requests = requests
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}
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)
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)
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client = dever.http.client(
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"http://127.0.0.1:" + int.to_text(port),
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dever.tls.system(),
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dever.http.default_limits(),
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dever.http.default_pool_limits()
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)
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response = dever.http.request(
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client,
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dever.http.Request {
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method = "GET"
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target = "/Dever"
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headers = []
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body = dever.bytes.from_text("")
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}
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)
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blocking(dever.io.println(dever.bytes.to_text(response.body)))
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dever.net.close_listener(listener)
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timeout(server, 2000, expired)
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dever.http.close_client(client)
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close(requests)
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blocking(dever.io.println(count(receive(requests))))
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}
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