resttemplate not send body unicode chars

Affects: Spring Boot 2.1.13

---

i have tryed to send same body with: curl, postman and rest template with java.

with rest template chars not show correctly

private CompletableFuture<String> sendToFCM(String entity, String firebaseServerKey) {
        RestTemplate restTemplate = new RestTemplate();

        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_JSON);
        headers.set("Authorization", "key=" + firebaseServerKey);
        HttpEntity<String> request = new HttpEntity<>(entity, headers);
        restTemplate.getMessageConverters().add(0, new StringHttpMessageConverter(StandardCharsets.UTF_8));

        String firebaseResponse = restTemplate.postForObject(FIREBASE_API_URL, request, String.class);
        return CompletableFuture.completedFuture(firebaseResponse);
    }

I attach

curl -X POST --header “Authorization: key=KEY IS HIDDEN” --Header “Content-Type: application/json;charset=ISO-8859-1” https://fcm.googleapis.com/fcm/send -d ‘{“to”:“/topics/VgtARwhilq”,“notification”:{“body”:“\uD83D\uDD25”,“content_available”:true,“priority”:“high”,“title”:“\uD83D\uDD25”},“data”:{“click_action”:“FLUTTER_NOTIFICATION_CLICK”,“body”:“\uD83D\uDD25”,“title”:“\uD83D\uDD25”,“content_available”:true,“priority”:“high”}}’

curl or postman result is right

Can you help me?

Best Regards

[rstoyanchev]

Thanks for getting in touch, but it feels like this is a question that would be better suited to Stack Overflow. As mentioned in the guidelines for contributing, we prefer to use the issue tracker only for bugs and enhancements. Feel free to update this issue with a link to the re-posted question (so that other people can find it) or add some more details if you feel this is a genuine bug.

[sante85]

@encircled in this mode? RestTemplate restTemplate = new RestTemplate();

    HttpHeaders headers = new HttpHeaders();
    headers.setContentType(MediaType.APPLICATION_JSON);
    headers.set("Authorization", "key=" + firebaseServerKey);
    HttpEntity<String> request = new HttpEntity<>(entity, headers);
    restTemplate.getMessageConverters().add(0, new MappingJackson2HttpMessageConverter());

    String firebaseResponse = restTemplate.postForObject(FIREBASE_API_URL, request, String.class);
    return CompletableFuture.completedFuture(firebaseResponse);