Created
April 25, 2020 11:28
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| location /sumdemo { | |
| set $diff ''; # we have to predefine the $diff variable here | |
| set_by_lua $sum ' | |
| local a = 32 | |
| local b = 56 | |
| ngx.var.diff = a - b; -- write to $diff directly | |
| return a + b; -- return the $sum value normally | |
| '; | |
| echo "sum = $sum, diff = $diff"; | |
| } |
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