fix: stop double-JSON-encoding error fields in Box API errors (box/box-codegen#985) (#1608)

Author: box-sdk-build

.codegen.json

@@ -1 +1 @@
-{ "engineHash": "bcfc85f", "specHash": "88cd5aa", "version": "10.14.0" }
+{ "engineHash": "bdc9526", "specHash": "88cd5aa", "version": "10.14.0" }

src/networking/boxNetworkClient.ts

@@ -17,6 +17,7 @@ import {
   SerializedData,
   jsonToSerializedData,
   sdIsMap,
+  sdIsString,
   sdToJson,
   sdToUrlParams,
 } from '../serialization/json';
@@ -436,15 +437,27 @@ export class BoxNetworkClient implements NetworkClient {
       errorDescription,
     ] = sdIsMap(fetchResponse.data)
       ? [
-          sdToJson(fetchResponse.data['code']),
+          sdIsString(fetchResponse.data['code'])
+            ? fetchResponse.data['code']
+            : undefined,
           sdIsMap(fetchResponse.data['context_info'])
             ? fetchResponse.data['context_info']
             : undefined,
-          sdToJson(fetchResponse.data['request_id']),
-          sdToJson(fetchResponse.data['help_url']),
-          sdToJson(fetchResponse.data['message']),
-          sdToJson(fetchResponse.data['error']),
-          sdToJson(fetchResponse.data['error_description']),
+          sdIsString(fetchResponse.data['request_id'])
+            ? fetchResponse.data['request_id']
+            : undefined,
+          sdIsString(fetchResponse.data['help_url'])
+            ? fetchResponse.data['help_url']
+            : undefined,
+          sdIsString(fetchResponse.data['message'])
+            ? fetchResponse.data['message']
+            : undefined,
+          sdIsString(fetchResponse.data['error'])
+            ? fetchResponse.data['error']
+            : undefined,
+          sdIsString(fetchResponse.data['error_description'])
+            ? fetchResponse.data['error_description']
+            : undefined,
         ]
       : [];
     if (fetchResponse.status === 0) {