fix: corrected input to computeWitness

lib/compute-witness.js

@@ -17,6 +17,7 @@ const { spawn } = childProcess;
  * @param {Array} arguments to pass to compute witness (flag -a)
  */
 async function computeWitness(codePath, outputDirectory = './', outputName = 'witness', args) {
+  console.log('hiya');
   if (!fs.existsSync(codePath)) {
     throw new Error('compute-witness codePath input file(s) not found');
   }
@@ -30,20 +31,29 @@ async function computeWitness(codePath, outputDirectory = './', outputName = 'wi
   // Ensure path ends with '/'
   const parsedOutputPath = outputDirectory.endsWith('/') ? outputDirectory : `${outputDirectory}/`;
 
+  console.log('hello there');
   // TODO: I haven't been able to test if the args actually pass properly,
   // if you run into issues with this function that is probably it.
   return new Promise(resolve => {
     const zokrates = spawn(
       '/app/zokrates',
       ['compute-witness', '-i', codePath, '-o', `${parsedOutputPath}${outputName}`, '-a', args],
       {
-        stdio: 'ignore',
+        stdio: ['pipe', 'pipe', 'pipe'],
         env: {
           ZOKRATES_HOME: '/app/stdlib',
         },
       },
     );
 
+    zokrates.stdout.on('data', data => {
+      console.log(data);
+    });
+
+    zokrates.stderr.on('data', data => {
+      console.log(data);
+    });
+
     zokrates.on('close', () => {
       resolve();
     });

lib/generate-proof.js

@@ -56,7 +56,7 @@ async function generateProof(provingKeyPath, codePath, provingScheme, options) {
     const { directory } = options;
     const parsedOutputPath = directory.endsWith('/') ? directory : `${directory}/`;
 
-    const { fileName } = options;
+    const fileName = options.fileName ? options.fileName : 'proof.json';
     const parsedFileName = fileName.endsWith('.json') ? fileName : `${fileName}.json`;
 
     args.push('-o');