I have a set of read commands that I have to in sequence. Any fails,
processing stops.
readCommands is an array of read functions...
async.waterfall(readCommands, function(err) {
if (err) {
console.log(err);
res.send(500, { error : err.toString() });
return;
}
else {
console.log('we determined the state to which we have to
rollback to');
}
});
at this point, I know what I started with. Now I want to do the write
commands
async.waterfall(writeCommands, function(err) {
if (err) {
console.log(err);
res.send(500, { error : err.toString() });
return;
}
else {
console.log('we succeeded with all the write commands...');
}
});
the arrays readCommands and writeCommands entries are radically different
so very hard to combine them. But I DO for the first waterfall to finish
before I go to the next one.
How do I make a "waterfall" out of the existing two?
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