Spring Integration Http OutboundGateway PUT with header parameters

Question

I am trying to make a PUT on a remote REST endpoint for which I need to provide the credentials as part of the headers without success so far.

Approach 1:

    @Bean
    public IntegrationFlow outboundGateway() {
        return flow -> flow
                .transform(transformer)
                .enrichHeaders(h -> h.header("x-api-key", "secret123")
                                     .header("contentType", MediaType.APPLICATION_JSON))
                .handle(Http.outboundGateway("https://remote-service.com/car")
                        .mappedRequestHeaders()
                .httpMethod(HttpMethod.PUT)
                .expectedResponseType(String.class))
                .log();
    }

I keep getting a 403 Forbidden.

I achieved the same with a RestTemplate so easily:

HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<>(getHeaders());
restTemplate.put("https://remote-service.com/car", request);
...

    private HttpHeaders getHeaders() {
        HttpHeaders headers = new HttpHeaders();
        headers.add("x-api-key", "secret123");
        return headers;
    }

How can I send this x-api-key header and its value with the Http OutboundGateway?

Thanks.

Artem Bilan · Accepted Answer · 2020-05-02 12:53:19Z

1

The x-api-keyis not a standard http header, so you need to make it to be transferred:

 .mappedRequestHeaders(*)

For your Http.outboundGateway().

See docs for more info: https://docs.spring.io/spring-integration/docs/5.2.6.RELEASE/reference/html/http.html#http-header-mapping

answered May 2, 2020 at 12:53

Artem Bilan

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