allow passing custom headers (#143)

Author: LeTamanoir

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@kilnfi/sdk",
-  "version": "3.1.7",
+  "version": "3.1.8",
   "autor": "Kiln <[email protected]> (https://kiln.fi)",
   "license": "BUSL-1.1",
   "description": "JavaScript sdk for Kiln API",

src/kiln.ts

@@ -19,7 +19,10 @@ export class Kiln {
     const client = createClient<paths>({
       ...clientOptions,
       baseUrl,
-      headers: apiToken ? { Authorization: `Bearer ${apiToken}` } : {},
+      headers: {
+        ...(apiToken ? { Authorization: `Bearer ${apiToken}` } : {}),
+        ...clientOptions?.headers,
+      },
       querySerializer: { array: { explode: false, style: 'form' } },
     });
     this.fireblocks = new FireblocksService(client);