feat: Render conversation custom attributes (#3065)

app/javascript/dashboard/api/inbox/conversation.js

@@ -80,6 +80,12 @@ class ConversationApi extends ApiClient {
   sendEmailTranscript({ conversationId, email }) {
     return axios.post(`${this.url}/${conversationId}/transcript`, { email });
   }
+
+  updateCustomAttributes({ conversationId, customAttributes }) {
+    return axios.post(`${this.url}/${conversationId}/custom_attributes`, {
+      custom_attributes: customAttributes,
+    });
+  }
 }
 
 export default new ConversationApi();

app/javascript/dashboard/api/specs/inbox/conversation.spec.js

@@ -160,5 +160,18 @@ describe('#ConversationAPI', () => {
         }
       );
     });
+
+    it('#updateCustomAttributes', () => {
+      conversationAPI.updateCustomAttributes({
+        conversationId: 45,
+        customAttributes: { order_d: '1001' },
+      });
+      expect(context.axiosMock.post).toHaveBeenCalledWith(
+        '/api/v1/conversations/45/custom_attributes',
+        {
+          custom_attributes: { order_d: '1001' },
+        }
+      );
+    });
   });
 });