switch-stream
A stream condition for switch/case
Usage
const switchStream = require('switch-stream');
process.in
.pipe(
switchStream(
buf => {
if (buf > 0) {
return 'case1';
} else if (buf < 0) {
return 'case2';
}
},
{
case1: streamA,
case2: streamB
}
)
)
.pipe(process.stdout);
If buf great than 0, then pipe to streamA. If buf less than 0, then pipe to streamB. Otherwise buf equal to 0, pipe to output directly.
API
switchStream(switch, cases, options)
-
switch
Switch condition determine which case will be choose. Switch can be any type, if switch is function, it will be called.
-
cases
Choose which stream will be piped to by key switch return.
-
options The stream options settings.
Reference
Modify from popomore's stream-switch, but use stream3.