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cd eredis
./rebar compile
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erl -pa ebin/
{ok, C} = eredis:start_link().
{ok, <<"OK">>} = eredis:q(C, ["SET", "foo", "bar"]).
{ok, <<"bar">>} = eredis:q(C, ["GET", "foo"]).
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save_order_id({Pid, DynData}) ->
{ok, Rds} = eredis:start_link(),
{_,Val} = ts_dynvars:lookup(order_id, DynData),
Id = binary_to_list(Val),
{ok, _} = eredis:q(Rds, ["RPUSH", "order_list", Id]).
get_order_id({Pid, DynData}) ->
{ok, Rds} = eredis:start_link(),
{ok, Id} = eredis:q(Rds, ["LPOP", "order_list"]),
Id.