How to pass a JSON array as a parameter in URL

Question

I have an requirement to pass a some values from mobile to server in a web service call and so I am planning to pass all the values in JSON format like the below         nameservice                            id   7413               name    ask                                    id   7414               name    josn                                    id   7415               name    john                                    id   7418               name    R amp R                      The following is my service call   RequestMapping   saveName    ResponseBody public String saveName String acc   jsonObject   new JSONObject        try                  System out println acc       jsonObject accumulate  result    saved               catch Exception e                e printStackTrace   jsonObject accumulate  result    Error Occured               return jsonObject toString        I am trying to call the above service by this way  localhost 8080 service saveName acc    nameservice        id   7413   name    ask        id   7414   name    josn        id   7415   name    john        id   7418   name    R amp R          But the output is like this     nameservice        id   7413   name    ask        id   7414   name    josn        id   7415   name    john        id   7418   name    R   Can any body please tell me why I am not getting all the values please

User · Answer

amp  is a keyword for the next parameter like this ur param1 1 amp param2 2  so effectively you send a second param named R   You should urlencode your string  Isn t POST an option

User · Answer

As  RE350 suggested passing the JSON data in the body in the post would be ideal  However  you could still send the json object as a parameter in a GET request  decode the json string in the server-side logic and use it as an object    For example  if you are on php you could do this  use the appropriate json decode in other languages    Server request   http    lt php script gt  param1   nameservice     id  89    id  3      In the server    obj   json decode   GET  param1    true    obj  nameservice   0   id     out put   89

User · Answer

Send Json data string to a web address and get a result with method post  in C   public string SendJsonToUrl string Url  string StrJsonData        if  Url          StrJsonData        return         try               HttpWebRequest request    HttpWebRequest WebRequest Create Url           request Method    POST           request ContentType    application json           request ContentLength   StrJsonData Length          using  var streamWriter   new StreamWriter request GetRequestStream                           streamWriter Write StrJsonData               streamWriter Close                var httpResponse    HttpWebResponse request GetResponse                using  var streamReader   new StreamReader httpResponse GetResponseStream                                   var result   streamReader ReadToEnd                    return result                                    catch  Exception exp                throw new Exception  SendJsonToUrl   exp             in PHP   lt  php   input   file get contents  php   input     json   json decode  input  true      gt

User · Answer

You can pass your json Input as a POST request along with authorization header in this way  public static JSONObject getHttpConn String json           JSONObject jsonObject null          try               HttpPost httpPost new HttpPost  http   google com                 org apache http client HttpClient client   HttpClientBuilder create   build                StringEntity stringEntity new StringEntity  d   json                httpPost addHeader  content-type    application x-www-form-urlencoded                String authorization  test test 123               String encodedAuth    Basic     Base64 encode authorization getBytes                         httpPost addHeader  Authorization   security get  Authorization                 httpPost setEntity stringEntity               HttpResponse reponse client execute httpPost               InputStream inputStream reponse getEntity   getContent                String jsonResponse IOUtils toString inputStream               jsonObject JSONObject fromObject jsonResponse                 catch  UnsupportedEncodingException e                 e printStackTrace              catch  ClientProtocolException e                 e printStackTrace              catch  IOException e                 e printStackTrace                      return jsonObject            This Method will return a json response In same way you can use GET method

User · Answer

I know this is old  but if anyone else wants to know why they get incomplete json like above is because the ampersand  amp  is a special character in URLs used to separate parameters  In your data there is an ampersand in R amp R  So the acc parameter ends when it reaches the ampersand character      That s why you are getting chopped data  The solution is either url encode the data or send as POST like the accepted solution suggests

User · Answer

let qs   event queryStringParameters  const query   Object keys qs  map key   gt  key         qs key   join   amp

User · Answer

I would suggest to pass the JSON data in the body as a POST request But if you still want to pass this as a parameter in URL you will have to encode your URL like below just for example -  for ex json is  -   name   ABC   id   1    testurl 80 service data  7B 22name 22 3A 22ABC 22 2C 22id 22 3A 221 22 7D  for more information on URL encoding refer below  https   en wikipedia org wiki Percent-encoding

User · Answer

I know this could be a later post  but  for new visitors I will share my solution  as the OP was asking for a way to pass a JSON object via GET  not POST as suggested in other answers     Take the JSON object and convert it to string  JSON stringify  Take the string and encode it in Base64  you can find some useful info on this here Append it to the URL and make the GET call Reverse the process  decode and parse it into an object   I have used this in some cases where I only can do GET calls and it works  Also  this solution is practically cross language

User · Answer

I encountered the same need and make a universal solution  node browser  that works with the Next js framework  for instance   It even works with circular dependencies  thanks to json-stringify-safe     Although  I also built a serializer on top of it to remove unnecessary data  because it s not recommended to use a url longer than 2k chars  see What is the maximum length of a URL in different browsers    import StringifySafe from  json-stringify-safe    export const encodeQueryParameter    data  object   string   gt      return encodeURIComponent StringifySafe data       Use StringifySafe to avoid crash on circular dependencies     export const decodeQueryParameter    query  string   object   gt      return JSON parse decodeURIComponent query           And the unit tests  jest    import   decodeQueryParameter  encodeQueryParameter   from    url    export const data        organisation          logo            id    ck2xjm2oj9lr60b32c6l465vx          linkUrl   null         linkTarget     blank          classes   null         style   null         defaultTransformations      width   200   height   200     typename    AssetTransformations            mimeType    image png            typename    Asset               theme            primaryColor     1134e6          primaryAltColor     203a51          secondaryColor    white          font    neuzeit-grotesk            typename    Theme          primaryColorG1     ffffff                  export const encodedData     7B 22organisation 22 3A 7B 22logo 22 3A 7B 22id 22 3A 22ck2xjm2oj9lr60b32c6l465vx 22 2C 22linkUrl 22 3Anull 2C 22linkTarget 22 3A 22 blank 22 2C 22classes 22 3Anull 2C 22style 22 3Anull 2C 22defaultTransformations 22 3A 7B 22width 22 3A200 2C 22height 22 3A200 2C 22  typename 22 3A 22AssetTransformations 22 7D 2C 22mimeType 22 3A 22image 2Fpng 22 2C 22  typename 22 3A 22Asset 22 7D 2C 22theme 22 3A 7B 22primaryColor 22 3A 22 231134e6 22 2C 22primaryAltColor 22 3A 22 23203a51 22 2C 22secondaryColor 22 3A 22white 22 2C 22font 22 3A 22neuzeit-grotesk 22 2C 22  typename 22 3A 22Theme 22 2C 22primaryColorG1 22 3A 22 23ffffff 22 7D 7D 7D    describe  utils url ts        gt      describe  encodeQueryParameter        gt        test  should encode a JS object into a url-compatible string   async      gt          expect encodeQueryParameter data   toEqual encodedData                    describe  decodeQueryParameter        gt        test  should decode a url-compatible string into a JS object   async      gt          expect decodeQueryParameter encodedData   toEqual data                    describe  encodeQueryParameter  lt  gt  decodeQueryParameter  lt  gt  encodeQueryParameter        gt        test  should encode and decode multiple times without altering data   async      gt          const  decodedData  object   decodeQueryParameter encodedData         expect  decodedData  toEqual data          const  encodedData  string   encodeQueryParameter  decodedData         expect  encodedData  toEqual encodedData          const  decodedDataAgain  object   decodeQueryParameter  encodedData         expect  decodedDataAgain  toEqual data

[java] How to pass a JSON array as a parameter in URL

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