I have an API where i have document and description as formdata key like this-
https://i.stack.imgur.com/yv2RA.png
How to have same Insertion order for the doc upload.
The formdata keys are losing its order in an array.
Wanted document and description to be sent in same order in which it is added.
How to maintain the same order.
My code -
MultiValueMap<String, Object> valueMap = new LinkedMultiValueMap<String, Object>();
for(i=0;i<5;i++) {
Resource fileResource = new FileSystemResource(htmlFile);
String descriptionJson = "{ "a" : "a"};
valueMap.add("document" ,fileResource);
valueMap.add("description" , descriptionJson);
}
HttpEntity<?> httpEntity = new HttpEntity<>(valueMap, httpHeaders);
Object postResponse = restTemplate.exchange(url, httpMethod, httpEntity, String.class);
Related
I want to call a REST service from my application. I'm not passing any request to this call. But I can't figure out from where it comes from?
RestTemplate restTemplate = new RestTemplate();
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();
map.add("username", bonitaUsername);
map.add("password", bonitaPassword);
map.add("redirect", "false");
HttpMessageConverter formHttpMessageConverter = new FormHttpMessageConverter();
HttpMessageConverter stringHttpMessageConverternew = new StringHttpMessageConverter();
List<HttpMessageConverter<?>> converters = new ArrayList<>();
converters.add(formHttpMessageConverter);
converters.add(stringHttpMessageConverternew);
restTemplate.setMessageConverters(converters);
HttpEntity<MultiValueMap<String, String>> httpEntity = new HttpEntity<>(map, headers);
ResponseEntity<?> response = restTemplate.exchange(url, HttpMethod.POST, httpEntity, String.class);
List<String> cookies = response.getHeaders().get("Set-Cookie");
String cookieString = "";
for (String cookie : cookies) {
System.out.println();
cookieString += cookie.split(";")[0] + "; ";
}
return cookieString;
This happens due to the mismatch of content types which passing to REST template. Please make sure to send the correct content type. Some times we are receiving JSON request but we need to send as another format.
I have a spring boot application and trying to invoke a rest service of another company by using RestTemplate.
The remote Rest Service required multiple header and body content as Raw JSON.
Here is the sample required body request :
{
"amount": "10000",
"destinationNumber": "365412"
}
But my request body generate like this :
{
amount= [10000],
destinationNumber= [365412]
}
I've done like this :
String BASE_URI = "http://server.com/sericeX";
RestTemplate template = new RestTemplate();
MultiValueMap<String, String> headers = new LinkedMultiValueMap<>();
headers.add("Authorization","Some token");
headers.add("Content-Type", "application/json");
MultiValueMap<String, String> bodyParam = new LinkedMultiValueMap<>();
bodyParam.add("amount", request.getAmount());
bodyParam.add("destinationNumber",request.getDestinationNumber());
HttpEntity entity = new HttpEntity(bodyParam,headers);
ResponseEntity<TransferEntity> responseEntity = template.exchange(BASE_URI, HttpMethod.POST, entity,TransferEntity.class);
TransferEntity transferEntity = responseEntity.getBody();
Could you please tell me how can i generate body request as JSON ?
Thanks to #Alex Salauyou based on his comment using HashMap instead of MultiValueMap solved the problem. Here is the changes need to be done:
HashMap<String, String> bodyParam = new HashMap<>();
bodyParam.put("amount", request.getAmount());
bodyParam.put("destinationNumber",request.getDestinationNumber());
I have the following request :
String url = "url to oauth_token";
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
RestTemplate restTemplate = new RestTemplate();
String body = "grant_type=authorization_code&client_id=123&client_secret=123&"
+ "redirect_uri=https://axyz.com&code=123";
HttpEntity<Object> entity = new HttpEntity<>(body, headers);
Object token = restTemplate.exchange(url, HttpMethod.POST, entity, Object.class);
This seems to return 400 (Bad Request). I have also tried its alternatives where body is a MultiValueMap but this is what makes the most sense to me. Is there something wrong with the way I am trying the request?
The values of the POST fields should be URL encoded (you can use URLEncoder.encode(value, "UTF-8") for each value while concatenating the body string). That's why you get 400 error.
You'd better use a more convenient way to create a POST form entity with keys and values, which will URL encode your values automatically:
List<NameValuePair> formparams = new ArrayList<NameValuePair>();
formparams.add(new BasicNameValuePair("param1", "value1"));
formparams.add(new BasicNameValuePair("redirect_uri", "https://axyz.com"));
...
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams, Consts.UTF_8);
I am trying to post data using Spring RestTemplate as below:
MultiValueMap<String, String> parameters = new LinkedMultiValueMap<String, String>();
parameters.add("name1", "value1");
parameters.add("name2", "value2");
HttpMessageConverter<String> stringConverter = new StringHttpMessageConverter();
FormHttpMessageConverter formConverter = new FormHttpMessageConverter();
List<HttpMessageConverter<?>> msgConverters = new ArrayList<HttpMessageConverter<?>>();
msgConverters.add(formConverter);
msgConverters.add(stringConverter);
restTemplate.setMessageConverters(msgConverters);
String xml = restTemplate.postForObject(myurl, parameters, String.class);
On the server part, I am using a simple servlet to handle request as follow:
String name1 = request.getParameter("name1");
The server returns the xml as String.
When I used HashMap instead of MultiValueMap without Converter, the parameters are null on the server side. But after using the above code, I am getting error
Cannot extract response: no Content-Type found
Can you plz provide me a simple example to achieve what I want.
Here is what I used to format data for the Spring POST:
//FormHttpMessageConverter
is used to construct form parameters to POST on the URI
HttpMessageConverter<?> formHttpMessageConverter = new FormHttpMessageConverter();
HttpMessageConverter<?> stringHttpMessageConverter = new StringHttpMessageConverter();
List<HttpMessageConverter> msgConverters = new ArrayList<HttpMessageConverter>();
msgConverters.add(formHttpMessageConverter);
msgConverters.add(stringHttpMessageConverter);
// Prepare acceptable media type
List<MediaType> acceptableMediaTypes = new ArrayList<MediaType>();
acceptableMediaTypes.add(MediaType.ALL);
// Prepare header
HttpHeaders headers = new HttpHeaders();
headers.setAccept(acceptableMediaTypes);
HttpEntity<MultiValueMap<String,String>> httpEntity = new HttpEntity<MultiValueMap<String,String>>(map,headers);
ResponseEntity<String> resp = restTemplate.exchange("https://risk.XXXX.XXXXXX.net",HttpMethod.POST,httpEntity,String.class);
My post method gets called but my Profile is empty. What is wrong with this approach? Must I use #Requestbody to use the RestTemplate?
Profile profile = new Profile();
profile.setEmail(email);
String response = restTemplate.postForObject("http://localhost:8080/user/", profile, String.class);
#RequestMapping(value = "/", method = RequestMethod.POST)
public #ResponseBody
Object postUser(#Valid Profile profile, BindingResult bindingResult, HttpServletResponse response) {
//Profile is null
return profile;
}
You have to build the profile object this way
MultiValueMap<String, Object> parts = new LinkedMultiValueMap<String, Object>();
parts.add("email", email);
Object response = restTemplate.postForObject("http://localhost:8080/user/", parts, String.class);
MultiValueMap was good starting point for me but in my case it still posted empty object to #RestController my solution for entity creation and posting ended up looking like so:
HashedMap requestBody = new HashedMap();
requestBody.put("eventType", "testDeliveryEvent");
requestBody.put("sendType", "SINGLE");
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
// Jackson ObjectMapper to convert requestBody to JSON
String json = new ObjectMapper().writeValueAsString(request);
HttpEntity<String> entity = new HttpEntity<>(json, headers);
restTemplate.postForEntity("/generate", entity, String.class);
My current approach:
final Person person = Person.builder().name("antonio").build();
final ResponseEntity response = restTemplate.postForEntity(
new URL("http://localhost:" + port + "/person/aggregate").toString(),
person, Person.class);