Validation ERROR: "While scanning a simple key could not find expected ':'", inside valueFrom field

CWL Questions
10

Yes, you can depend on multiple upstream values.

It’ll turn self into an array.

The “item is invalid because it is not a dict” error means infile is a file and not an array, so you don’t want to wrap it in [ ].

Try this:

      infile:
        source: [listdir/a, xyz/x]
        valueFrom: |
          ${ 
            if (inputs.num === 0) { 
              return self[0]; 
            }
            else { return self[1]; } 
          }
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