Following up on what tobyink and 1nickt said, in a recent distribution I wrote, I let the compiler decide whether to use JSON (XS) or JSON::PP which is already in the core. If JSON is not installed, it'll automatically fall back to the core JSON::PP.

BEGIN {

    # look for JSON::XS, and if not available, fall
    # back to JSON::PP to avoid requiring non-core modules

    my $json_ok = eval {
        require JSON::XS;
        JSON::XS->import;
        1;
    };
    if (! $json_ok){
        require JSON::PP;
        JSON::PP->import;
    }
}

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In reply to Re: Can not use JSON module by stevieb
in thread Can not use JSON module by tejD

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