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parse error - unexpected end of input #558
Description
#include <cpprest/http_client.h>
#include <nlohmann/json.hpp>
#include <iostream>
int main() {
web::uri_builder builder("http://xkcd.com/614/info.0.json"); // first builder
// web::uri_builder builder("http://i.jandan.net/?oxwlxojflwblxbsapi=jandan.get_duan_comments?page=25"); // second builder
web::http::client::http_client client(builder.to_uri());
nlohmann::json json = nlohmann::json::parse(client.request(web::http::methods::GET)
.get().extract_string().get());
std::cout << json << std::endl;
}Second builder can run.
But when run first builder, i will get:
terminate called after throwing an instance of 'std::invalid_argument'
what(): parse error - unexpected end of input
[1] 2056 abort (core dumped) ./bin/xkcd_bot
Please help me! Thanks very much!
Reacted by alienzj
Activity
nlohmann commentedon Apr 19, 2017
Can you make sure that the HTTP client is following redirections? I get the following output with httpie;
As you can see, the content-length is 0 bytes, so the error message "unexpected end of input" would make sense ;-)
The redirect URL (https://xkcd.com/614/info.0.json) as well as the second URL return proper JSON with a 200 status code.
alienzj commentedon Apr 20, 2017
OK, I know, thank you very much!
nlohmann commentedon Apr 20, 2017
Was that the issue?
alienzj commentedon Apr 20, 2017
Nothing~