Set the "JWT_SECRET" environment variable

[tbenst]

Hitting this error:

> export JWT_SECRET="some secret value"
> yesod devel
Success! Waiting for next file change.
Type help for available commands. Press enter to force a rebuild.
Starting devel application
devel.hs: Set the "JWT_SECRET" environment variable
Unexpected: child process exited with ExitFailure 1

If relevant, I did slightly modify the stack.yaml for use with Nix:

resolver: lts-14.25
packages:
- .
extra-deps:
- esqueleto-2.6.0
- jwt-0.9.0

install-ghc: false
system-ghc: true

nix:
  enable: true
  packages: [glpk, pcre, zlib]

[tzemanovic]

I think this is indeed caused by nix as it runs in a pure environment. You can either ask it to run in non-pure environment (add pure: false in stack.yaml, or run with --no-nix-pure), or set the variable via a custom shell.nix file. Please check out the nix integration docs for stack.

[tbenst]

Thanks!