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spring-bootmultipartform-dataresttemplate

Sending multipart requests using Spring Boot with specific header for every part

Postman request

https://i.sstatic.net/ILbhN.png]

As mentioned in image I would like to send content-type as application/json for a particular part of a multipart request in springboot application.

Solution

  • use MultipartBodyBuilder to build your request.

    HttpHeaders headers = new HttpHeaders();

headers.setContentType(MediaType.MULTIPART_FORM_DATA);

headers.add("add custome header", "header value");

MultipartBodyBuilder builder = new MultipartBodyBuilder();

builder.part("json_part", "").header("Content-Type", "application/json");

MultiValueMap<String, HttpEntity<?>> body = builder.build();

HttpEntity<MultiValueMap<String, Object>> requestEntity = new HttpEntity(body, 
headers);

RestTemplate restTemplate = new RestTemplateBuilder().build();

ResponseEntity<String> postResponse = restTemplate
    .postForEntity("yoururl", requestEntity, String.class);