com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 2 path $

Question

I am facing this error while I am posting a json array to server using retrofit. My json is valid as I checked the same by an online tool
Here is my json that I am posting

[
  {
  "image":"/9j/4AAQ//Z",
  "pole_code":"Adv234",
  "latitude":28.62628851,
  "longitude":77.37868293,
  "vendor_name":"1"
  }
]

And the here is the method for posting the same

@POST("SyncPole")
Call<SyncApiResponse>uploadSurveyData(@Body JsonArray array);

Code for making JsonArray

private JsonArray createJsonArray(List<PoleSurveyData> list){
    JsonArray jsonArray = new JsonArray();
    if (list != null) {
        for (int i = 0; i < list.size(); i++) {
            JsonObject jsonObject = new JsonObject();
            try {
                String imgString = Base64.encodeToString(list.get(i).getImage(),
                        Base64.NO_WRAP);
                jsonObject.addProperty("image", imgString);
                jsonObject.addProperty("pole_code", list.get(i).getPoleCode());
                jsonObject.addProperty("latitude", list.get(i).getLatitude());
                jsonObject.addProperty("longitude", list.get(i).getLongitude());
                jsonObject.addProperty("vendor_name","1");

                jsonArray.add(jsonObject);

                ;

            }catch (Exception e){
                e.printStackTrace();
            }

        }
}
return jsonArray;
}

I have followed these links "Expected BEGIN_OBJECT but was STRING at line 1 column 1" but none of them is working
Screen shot of postman request
Can someone help me out where I am doing wrong

You are getting this exception because your API call is not execute successfully or API response is not in correct structure to be parsed. the possible duplicate of https://stackoverflow.com/questions/28418662/expected-begin-object-but-was-string-at-line-1-column-1 — Jakir Hossain, Nov 14 '19 at 10:51
if you're trying to make json string out of the dataclass, why don't you do it with gson. Actually, it does that for you, no looping and stuff . Check this solution https://stackoverflow.com/a/27893385/6737471 — pz64_, Nov 14 '19 at 10:54
@JakirHossain You are right , I have made my backend developer to change the response in proper structure Now its Working — Sandeep dhiman, Nov 14 '19 at 11:41

score 1 · Accepted Answer · answered Nov 14 '19 at 11:44

1

"success"

You are getting String in Response but you expecting an object of SyncApiResponse. that's the problem

Solution: you have to change the response format. like the following structure.

{
 "status": "success",
 "message": "demo message"
}

answered Nov 14 '19 at 11:44

Jakir Hossain

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com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 2 path $

1 Answers1