com.apollographql.federation.graphqljava.tracing

Interface HTTPRequestHeaders

public interface HTTPRequestHeaders

If the context object on your GraphQL ExecutionInput implements this interface, FederationTracingInstrumentation will generate traces only when requested to by the gateway in front of it.

Method Summary

Modifier and Type	Method and Description
@Nullable String	getHTTPRequestHeader(String caseInsensitiveHeaderName) Return the value of the given HTTP header from the request, or null if the header is not provided.

Method Detail

getHTTPRequestHeader

@Nullable
@Nullable String getHTTPRequestHeader(String caseInsensitiveHeaderName)

Return the value of the given HTTP header from the request, or null if the header is not provided. The header name should be treated as case-insensitive. If the header is provided multiple times, choose the first one.

Parameters:

caseInsensitiveHeaderName - the HTTP header name to get

Returns:

the header, or null if not provided