How to upload a file and JSON data in Postman

Question

I am using Spring MVC and this is my method         Upload single file using Spring Controller      RequestMapping value     uploadFile   method   RequestMethod POST  public  ResponseBody ResponseEntity lt GenericResponseVO lt   extends IServiceVO gt  gt  uploadFileHandler               RequestParam  name   String name               RequestParam  file   MultipartFile file              HttpServletRequest request              HttpServletResponse response         if   file isEmpty              try               byte   bytes   file getBytes                    Creating the directory to store file             String rootPath   System getProperty  catalina home                File dir   new File rootPath   File separator    tmpFiles                if   dir exists                      dir mkdirs                                  Create the file on server             File serverFile   new File dir getAbsolutePath     File separator   name               BufferedOutputStream stream   new BufferedOutputStream new FileOutputStream serverFile                stream write bytes               stream close                 System out println  Server File Location     serverFile getAbsolutePath                  return null            catch  Exception e                return null                       I need to pass the session id in postman and also the file  How can I do that

User · Answer

Don t give any headers   Put your json data inside a  json file  Select your both files one is your  txt file and other is  json file for your request param keys

User · Answer

If you are using cookies to keep session  you can use interceptor to share cookies from browser to postman   Also to upload a file you can use form-data tab under body tab on postman  In which you can provide data in key-value format and for each key you can select the type of value text file  when you select file type option appeared to upload the file

User · Answer

Like this      Body -  form-data -  select file   You must write  file  instead of  name   Also you can send JSON data from Body -  raw field   Just paste JSON string

User · Answer

In postman  set method type to POST   Then select Body -  form-data -  Enter your parameter name  file according to your code   and on right side next to value column  there will be dropdown  text  file   select File  choose your image file and post it   For rest of  text  based parameters  you can post it like normally you do with postman  Just enter parameter name and select  text  from that right side dropdown menu and enter any value for it  hit send button  Your controller method should get called

User · Answer

I needed to pass both  a file and an integer  I did it this way    needed to pass a file to upload  did it as per Sumit s answer   Request type   POST  Body -  form-data   under the heading KEY  entered the name of the variable   file  in my backend code     in the backend   file   request files  file    Next to  file   there s a drop-down box which allows you to choose between  File  or  Text   Chose  File  and under the heading VALUE   Select files  appeared  Clicked on this which opened a window to select the file    2  needed to pass an integer    went to   Params  entered variable name  e g   id  under KEY and its value  e g   1  under VALUE  in the backend   id   request args get  id     Worked

User · Answer

The way to send mulitpart data which containts a file with the json data is the following  we need to set the content-type of the respective json key fields to  application json  in the postman body tab like the following

User · Answer

Select  Content Type  from  SHOW COLUMNS  then set content-type of  application json  to the parameter of json text

User · Answer

The Missing Visual Guide  You must first find the nearly-invisible pale-grey-on-white dropdown for File which is the magic key that unlocks the Choose Files button   After you choose POST  then choose Body- gt form-data  then find the File dropdown  and then choose  File   only then will the  Choose Files  button magically appear

User · Answer

For each form data key you can set Content-Type  there is a postman button on the right to add the Content-Type column  and you don t have to parse a json from a string inside your Controller

User · Answer

If you need like Upload file in multipart using form data and send json data Dto object  in same POST Request  Get yor JSON object as String in Controller and make it Deserialize by adding this line  ContactDto contactDto    new ObjectMapper   readValue yourJSONString  ContactDto class

User · Answer

Maybe you could do it this way

User · Answer

At Back-end part Rest service in Controller will have mixed  RequestPart and MultipartFile to serve such Multipart   JSON request   RequestMapping value    quot  executesampleservice quot   method   RequestMethod POST  consumes     quot multipart form-data quot      ResponseBody public boolean yourEndpointMethod       RequestPart  quot properties quot    Valid ConnectionProperties properties       RequestPart  quot file quot    Valid  NotNull  NotBlank MultipartFile file    return projectService executeSampleService properties  file      At front-end   formData   new FormData     formData append  quot file quot   document forms formName  file files 0    formData append  properties   new Blob  JSON stringify                quot name quot    quot root quot                quot password quot    quot root quot                                                 type   quot application json quot                See in the image  POSTMAN request   Click to view Postman request in form data for both file and json

User · Answer

If you want to make a PUT request  just do everything as a POST request but add  method    PUT to your form-data parameters

User · Answer

If you want the Id and File in one object you can add your request object to a method as standard and then within Postman set the Body to form-data and prefix your keys with your request object name  e g  request SessionId and request File

User · Answer

Use below code in spring rest side     PostMapping value   Constant API INITIAL     uploadFile       public UploadFileResponse uploadFile  RequestParam  file   MultipartFile file String jsonFileVo            FileUploadVo fileUploadVo   null          try               fileUploadVo   new ObjectMapper   readValue jsonFileVo  FileUploadVo class             catch  Exception e                e printStackTrace

User · Answer

Kindly follow steps from top to bottom as shown in below image   At third step you will find dropdown of type selection as shown in below image

User · Answer

If somebody wants to send json data in form-data format just need to declare the variables like this  Postman     As you see  the description parameter will be in basic json format  result of that     description    spanish   hola   english   hello

User · Answer

To send image along with json data in postman you just have to follow the below steps    Make your method to post in postman go to the body section and click on form-data provide your field name select file from the dropdown list as shown below you can also provide your other fields   now just write your image storing code in your controller as shown below    postman    my controller   public function sendImage Request  request         image new ImgUpload        if  request- gt hasfile  image                       file  request- gt file  image               extension  file- gt getClientOriginalExtension               filename time        extension             file- gt move  public upload userimg    filename              image- gt image  filename                else                   return  request             image- gt image                    image- gt save        return response  - gt json   response   gt   code   gt  200   message   gt  image uploaded successfull         That s it hope it will help you

User · Answer

If somebody needed   body -  form-data  Add field name as array

[java] How to upload a file and JSON data in Postman?

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