Two implementations of http://resttest.bench.co/
The quick and dirty implementation using curl, jq and bc.
$ bash/resttest.sh
18377.16
Go implentation
$ go run go/balance.go
18377.16
Both output the same value luckily, although the Go implementation of obviously much much faster. Also, the Bash implementation is not as robust, less easily expensible and I'm not sure how well bc handles rounding errors. I assume its using float for internal representation.
Extended the implementation to add daily totals.
$ go run go/daily.go
2013-12-12 -227.35
2013-12-13 -1229.58
2013-12-15 -5.39
2013-12-16 -4575.53
2013-12-17 10686.28
2013-12-18 -1841.29
2013-12-19 19753.31
2013-12-20 -4054.60
2013-12-21 -17.98
2013-12-22 -110.71
---------- -----
TOTAL 18377.16
resttest package includes some tests.
$ cd go/resttest
$ go test -v
=== RUN TestCentsString
--- PASS: TestCentsString (0.00s)
=== RUN TestSumTransactions
--- PASS: TestSumTransactions (0.00s)
PASS
ok _/Users/phil/src/resttest/go/resttest 0.009s