Error in call to API function "files/list_folder": request body: could not decode input as JSON

Question

Looks like this question being raised before. i did try postman and able to pass the API message to box api and return sucessfully.

i am integrate MT4/MQL4 language with Dropbox. The code is like this:

int res;
string signal,out_header,in_header,URL,in_signal;
char body[],result[];

URL = "https://api.dropboxapi.com/2/files/list_folder";
out_header = "Authorization: Bearer ,<token>
Content-Type: application/json";
signal = "{"path": "/Home"}" ;

StringToCharArray (signal,body,0,-1,CP_ACP);
res = WebRequest("POST",URL,out_header,0,body,result,in_header);
in_signal = CharArrayToString(result,0,-1,CP_ACP);

I do include "{"path": "/Home"}" in the body and tried couple times and still facing the error: Error in call to API function "files/list_folder": request body: could not decode input as JSON

Plesae suggest what might be wrong.

thx.

autratec · Accepted Answer

@Здравко

Hi, thanks for the advice. the second suggestion works:

ArrayResize(body,ArraySize(body)-1);

thank you again.