fix: handle applyInstantJson file refs and add build example

Author: jdrhyne

src/dws/build.ts

@@ -88,6 +88,10 @@ async function processActionFileReferences(action: Action): Promise<FileReferenc
     const fileReference = await processFileReference(action.file)
     action.file = fileReference.key
     return fileReference
+  } else if (action.type === 'applyInstantJson' && 'file' in action && typeof action.file === 'string') {
+    const fileReference = await processFileReference(action.file)
+    action.file = fileReference.key
+    return fileReference
   }
 
   // No need to parse files for the other actions

tests/build-api-examples.ts

@@ -290,6 +290,27 @@ export const applyXfdfExample: BuildAPIArgs = {
   outputPath: 'output_pdf.pdf',
 }
 
+// Example with applying Instant JSON
+export const applyInstantJsonExample: BuildAPIArgs = {
+  instructions: {
+    parts: [
+      {
+        file: 'example.pdf',
+      },
+    ],
+    actions: [
+      {
+        type: 'applyInstantJson',
+        file: 'example.json',
+      },
+    ],
+    output: {
+      type: 'pdf',
+    },
+  },
+  outputPath: 'output_pdf.pdf',
+}
+
 // Example with redactions using preset
 export const redactionsPresetExample: BuildAPIArgs = {
   instructions: {