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okhttp/src/commonJvmAndroid/kotlin/okhttp3/internal/http1/HeadersReader.kt

 */
package okhttp3.internal.http1

import okhttp3.Headers
import okio.BufferedSource

/**
 * Parse all headers delimited by "\r\n" until an empty line. This throws if headers exceed 256 KiB.
 */
class HeadersReader(
  val source: BufferedSource,
) {
  private var headerLimit = HEADER_LIMIT.toLong()

  /** Read a single line counted against the header size limit. */
  fun readLine(): String {

Created: Fri Dec 26 11:42:13 GMT 2025

- Last Modified: Wed Mar 19 19:25:20 GMT 2025

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github.com/tiangolo/fastapi

tests/test_tutorial/test_response_directly/test_tutorial002.py

    expected_content = """<?xml version="1.0"?>
    <shampoo>
    <Header>
        Apply shampoo here.
    </Header>
    <Body>
        You'll have to use soap here.
    </Body>
    </shampoo>
    """

    response = client.get("/legacy/")
    assert response.status_code == 200, response.text
    assert response.headers["content-type"] == "application/xml"
    assert response.text == expected_content

Created: Sun Dec 28 07:19:09 GMT 2025

- Last Modified: Fri Dec 26 10:43:02 GMT 2025

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github.com/minio/minio

internal/etag/etag.go

}

// Set adds the ETag to the HTTP headers. It overwrites any
// existing ETag entry.
//
// Due to legacy S3 clients, that make incorrect assumptions
// about HTTP headers, Set should be used instead of
// http.Header.Set(...). Otherwise, some S3 clients will not
// able to extract the ETag.
func Set(etag ETag, h http.Header) {
	// Some (broken) S3 clients expect the ETag header to

Created: Sun Dec 28 19:28:13 GMT 2025

- Last Modified: Fri May 16 14:27:42 GMT 2025

- 13.2K bytes

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github.com/square/okhttp

okhttp/src/jvmTest/kotlin/okhttp3/internal/http2/HttpOverHttp2Test.kt

    assertThat(response.protocol).isEqualTo(protocol)
    val logs = testLogHandler.takeAll()
    assertThat(firstFrame(logs, "HEADERS")!!, "header logged")
      .contains("HEADERS       END_HEADERS")
    // While MockWebServer waits to read the client's HEADERS frame before sending the response, it
    // doesn't wait to read the client's DATA frame and may send a DATA frame before the client

Created: Fri Dec 26 11:42:13 GMT 2025

- Last Modified: Sat Nov 01 12:18:11 GMT 2025

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github.com/minio/minio

internal/handlers/forwarder.go

		clientIP = ipv6fix(clientIP)
		if req.Header.Get(xRealIP) == "" {
			req.Header.Set(xRealIP, clientIP)
		}
	}

	xfProto := req.Header.Get(xForwardedProto)
	if xfProto == "" {
		if req.TLS != nil {
			req.Header.Set(xForwardedProto, "https")
		} else {
			req.Header.Set(xForwardedProto, "http")
		}
	}

	if xfPort := req.Header.Get(xForwardedPort); xfPort == "" {

Created: Sun Dec 28 19:28:13 GMT 2025

- Last Modified: Tue Feb 18 16:25:55 GMT 2025

- 5.7K bytes

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github.com/square/okhttp

okhttp/src/commonJvmAndroid/kotlin/okhttp3/internal/http/CallServerInterceptor.kt

    val hasRequestBody = HttpMethod.permitsRequestBody(request.method) && requestBody != null
    val isUpgradeRequest = "upgrade".equals(request.header("Connection"), ignoreCase = true)
    try {
      exchange.writeRequestHeaders(request)

      if (hasRequestBody) {
        // If there's a "Expect: 100-continue" header on the request, wait for a "HTTP/1.1 100
        // Continue" response before transmitting the request body. If we don't get that, return

Created: Fri Dec 26 11:42:13 GMT 2025

- Last Modified: Thu Oct 30 13:46:58 GMT 2025

- 7.6K bytes

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github.com/tiangolo/fastapi

docs_src/header_param_models/tutorial002_py310.py

from fastapi import FastAPI, Header
from pydantic import BaseModel

app = FastAPI()


class CommonHeaders(BaseModel):
    model_config = {"extra": "forbid"}

    host: str
    save_data: bool
    if_modified_since: str | None = None
    traceparent: str | None = None
    x_tag: list[str] = []


@app.get("/items/")
async def read_items(headers: CommonHeaders = Header()):

Created: Sun Dec 28 07:19:09 GMT 2025

- Last Modified: Tue Sep 17 18:54:10 GMT 2024

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github.com/tiangolo/fastapi

tests/test_security_api_key_header_description.py

    response = client.get("/users/me", headers={"key": "secret"})
    assert response.status_code == 200, response.text
    assert response.json() == {"username": "secret"}


def test_security_api_key_no_key():
    response = client.get("/users/me")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "APIKey"

Created: Sun Dec 28 07:19:09 GMT 2025

- Last Modified: Mon Nov 24 19:03:06 GMT 2025

- 2.1K bytes

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github.com/tiangolo/fastapi

docs_src/header_param_models/tutorial002_an_py310.py

from fastapi import FastAPI, Header
from pydantic import BaseModel

app = FastAPI()


class CommonHeaders(BaseModel):
    model_config = {"extra": "forbid"}

    host: str
    save_data: bool
    if_modified_since: str | None = None
    traceparent: str | None = None
    x_tag: list[str] = []


@app.get("/items/")
async def read_items(headers: Annotated[CommonHeaders, Header()]):

Created: Sun Dec 28 07:19:09 GMT 2025

- Last Modified: Tue Sep 17 18:54:10 GMT 2024

- 432 bytes

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github.com/tiangolo/fastapi

docs_src/header_param_models/tutorial002_py39.py

from fastapi import FastAPI, Header
from pydantic import BaseModel

app = FastAPI()


class CommonHeaders(BaseModel):
    model_config = {"extra": "forbid"}

    host: str
    save_data: bool
    if_modified_since: Union[str, None] = None
    traceparent: Union[str, None] = None
    x_tag: list[str] = []


@app.get("/items/")
async def read_items(headers: CommonHeaders = Header()):

Created: Sun Dec 28 07:19:09 GMT 2025

- Last Modified: Tue Sep 17 18:54:10 GMT 2024

- 430 bytes

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