serialize long string with rapid json will be truncated

Question

I use rapid json to serialize a dict, the key is uint32 and the value is a long string. The code is：

rapidjson::StringBuffer buffer();                                                                                                                                     
rapidjson::Write<< rapidjson::StringBuffer>> writer(buffer);  
root.Accept(writer);  
const char* json_str = buffer.GetString();

But, I found the final json_str is truncated. Does any one known how to avoid truncation?

What kind of string do you serialize? Is that possible it contains some binary data like `\0`? — user2807083, Mar 16 '17 at 12:05
I'm not sure this can help... Try to set greater (than deafault) capacity in StringBuffer constructor — JustAnotherCoder, Mar 29 '17 at 16:05

score 1 · Answer 1 · answered Mar 16 '17 at 12:13

If assume that the truncation has place due to zero character inside your long string then you can avoid it by stop using char * and use std::string instead.

rapidjson::StringBuffer buffer();                                                                                                                                     
rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);  
root.Accept(writer);  
std::string json_str = std::string(buffer.GetString(), buffer.GetSize());

serialize long string with rapid json will be truncated

1 Answers1