'cannot change locale'; 'printf: null: invalid number'

[LinuxOnTheDesktop]

Describe the bug

covid19-cli.sh: line 9: warning: setlocale: LC_NUMERIC: cannot change locale (en_US): No such file or directory
 ✔  Country: united states
jq: error (at <stdin>:1): Cannot iterate over null (null)
jq: error (at <stdin>:1): Cannot iterate over null (null)

[my path]/covid19-cli.sh: line 411: printf: null: invalid number
Cases:		0	
[my path]/covid19-cli/dist/covid19-cli.sh: line 412: printf: null: invalid number
Deaths:		0	
[my path]/covid19-cli/dist/covid19-cli.sh: line 413: printf: null: invalid number
Recovered:	0

To Reproduce
Run the program with seeminly any option.

Expected behavior
A clear and concise description of what you expected to happen.

Desktop:

• OS: [e.g. iOS]
  Linux Mint 19.3 x64 Cinnamon

Software versions
GNU bash, version 4.4.20(1)-release (x86_64-pc-linux-gnu)
Latest git version of covid19-cli

Additional context
I think it is a problem with the data source - for, a similar program that I have has a similar problem - but your program should handle the problem more gracefully.

[lesnake]

This is related to a missing locale. Here is what on my ubuntu 19.10 fr_FR:

Open /etc/locale.gen and look for en_US locales. You have to un-comment the "en_US" (1st row in the following snippet), not only the "en_US.something" (watch the dot).

In the end you should have something like this:

en_US ISO-8859-1
# en_US.ISO-8859-15 ISO-8859-15
en_US.UTF-8 UTF-8

Save, then run
locale-gen

[LinuxOnTheDesktop]

Ok, so I located /etc/local.gen (which is a file) and uncommented # en_US ISO-8859-1. Then I ran locale-gen. It seemed to fail. So I re-ran it as root. Then I opened a new terminal and did covid usa and iI got the same error as before - even after rebooting the computer. EDITED.

[lesnake]

You need to edit /etc/locale.gen AND run locale-gen as root.

[LinuxOnTheDesktop]

Thanks. I ran locale-gen as root. It showed no errors. I logged off and back in again. Your program showed the same problems as before.

[Sagez]

i did trace it back to where your url (links) along with BASE_API said
{"message":"This endpoint has been deprecated. Use /v2/all instead.","docs":"http://corona.lmao.ninja/docs"}
with API_TOTAL_ENDPOINT so i kind tweak a little add /v2/ in end of BASE_API.. in LINE 15 and remove /v2 from API_HISTORICAL_COUNTRIES_ENDPOINT.

BASE_API="https://corona.lmao.ninja/v2"
API_TOTAL_ENDPOINT="$BASE_API/all"
API_ALL_COUNTRIES_ENDPOINT="$BASE_API/countries"
API_HISTORICAL_COUNTRIES_ENDPOINT="$BASE_API/historical"

[LinuxOnTheDesktop]

Thanks. However, I have trouble understanding you. Are you suggesting that . . actually, at this point, I am just going to give up, I am afraid.