#1144 Generators for headers are not handled properly Issue created by mario-martinez-se I have a pact that looks like (excerpt):

"consumer": {
		"name": "Consumer"
	},
	"interactions": [
		{
			"description": "a request for bookings count",
			"providerStates": [
				{
					"name": "A user exists",
					"params": {
						"email": "<mailto:contract@mail.com|contract@mail.com>"
					}
				}
			],
			"request": {
				"generators": {
					"header": {
						"$['se-token'][0]": {
							"expression": "${seToken}",
							"type": "ProviderState"
						}
					},
					"path": {
						"expression": "/v4/users/${userId}/bookings/count",
						"type": "ProviderState"
					}
				},
				"headers": {
					"se-api-token": "156806cc-80cf-449d-b0ca-86c9252a36a1",
					"se-token": "ABC123"
				},

				"method": "GET",
				"path": "/v4/users/1234/bookings/count"
			},
			"response": {

			}
		}
	],
	"metadata": {
		"pact-js": {
			"version": "11.0.2"
		},
		"pactRust": {
			"ffi": "0.4.0",
			"models": "1.0.4"
		},
		"pactSpecification": {
			"version": "3.0.0"
		}
	},
	"provider": {
		"name": "Provider"
	}
}

When I run the tests for the provider, the status change url gets called as expected and it returns the required values,

userId

and

seToken

. These values are properly interpolated in the path, so my server receives a hit in the right url (

/v4/users/${userId}/bookings/count

), but the headers are not properly set in the request, so in my server logs I see:

Note: further occurrences of HTTP request parsing errors will be logged at DEBUG level.

java.lang.IllegalArgumentException: The HTTP header line [$['se-token'][0]: eyJhbGciOiJSUzI1NiJ9.eyJ] does not conform to RFC 7230 and has been ignored.
	at org.apache.coyote.http11.Http11InputBuffer.skipLine(Http11InputBuffer.java:1093)
	at org.apache.coyote.http11.Http11InputBuffer.parseHeader(Http11InputBuffer.java:922)
	at org.apache.coyote.http11.Http11InputBuffer.parseHeaders(Http11InputBuffer.java:604)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:294)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:926)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1791)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:750)

If I modify my pact file to be

"request": {
				"generators": {
					"header": {
						"se-token": {
							"expression": "${seToken}",
							"type": "ProviderState"
						}
					},

Then, everything works as expected, but with the generated pact file it's taking

$['se-token'][0]

as the headers name instead of just

se-token

. I am using version gradle plugin version 4.1.42 . ``` pact-foundation/pact-js