Bad request: 401

[kioannou97]

Hello everyone, I am quite new in C++ development, and this is the first time I ever work with InfluxDB. I 've been running the following code and I keep getting a "Bad request: 401 error". The influxdb version that I use is v2.5.1.

main.cpp

#include <iostream>
#include <InfluxDBFactory.h>

int main()
{
	auto db = influxdb::InfluxDBFactory::Get("http://localhost:8086?db=test");
	const auto response = db->execute("SHOW DATABASES");
	return 0;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.12.0)
set(CMAKE_CXX_STANDARD 17)
project(cxx-influxdb-example)
find_package(InfluxDB)
add_executable(example main.cpp)
target_link_libraries(example PRIVATE `InfluxData::InfluxDB)

Can anyone help me understand why I am getting this error? Any input is greatly appreciated!

[offa]

401 means unauthorized, you'll need credentials for authentication.

[kioannou97]

Thank you for your quick response!

I tried to use my credentials in the following way:

#include <iostream>
#include <InfluxDBFactory.h>

int main()
{
	auto db = influxdb::InfluxDBFactory::Get("http://username:password@localhost:8086?db=test");
	const auto response = db->execute("SHOW DATABASES");
	return 0;
}

However, I am still getting the same error.

[offa]

Can you have a look at the links listed here? Maybe there's a compatibility issue regarding token or password.

Also can you use your credentials eg. using the CLI?

[kioannou97]

I can use the credentials through the CLI just fine. I had a look at the links that you posted and tried some other methods but didn't work either.

So I just downgraded to InfuxDB 1.8 and the library worked fine! I hope that in the future there will be support for InfluxDB 2.0+.

Thank you so much for your help!

[offa]

Can we mark as solved here?

[kioannou97]

Yes :)