[iOS] JSON parsing error is showing up in log when openeing the Dasbhoard viewmodel

[OmarIthawi]

Steps to reproduce

1. Where are you starting? What can you see?

A newly compiled app from develop branch connected to my server blue.zeitlabs.com which is Open edX master backend (more recent the Quince).

2. What do you click?

The dashboard button.

We got this error in the mobile error:

valueNotFound(Swift.Array<Swift.String>, Swift.DecodingError.Context(codingPath: [CodingKeys(stringValue: "enrollments", intValue: nil), CodingKeys(stringValue: "results", intValue: nil), _JSONKey(stringValue: "Index 0", intValue: 0), CodingKeys(stringValue: "course", intValue: nil), CodingKeys(stringValue: "discussion_url", intValue: nil)], debugDescription: "Cannot get unkeyed decoding container -- found null value instead", underlyingError: nil))

HTTP Request

Request: GET https://blue.zeitlabs.com/api/mobile/v3/users/omarstudent/course_enrollments?page=1

{
  "configs": {
    "iap_configs": {}
  },
  "enrollments": {
    "next": null,
    "previous": null,
    "count": 2,
    "num_pages": 1,
    "current_page": 1,
    "start": 0,
    "results": [
      {
        "audit_access_expires": null,
        "created": "2024-02-29T12:51:54.025316Z",
        "mode": "audit",
        "is_active": true,
        "course": {
          "id": "course-v1:futurex+test101+2024",
          "name": "The Test Bank example course",
          "number": "test101",
          "org": "futurex",
          "start": "2020-01-01T00:00:00Z",
          "start_display": "Jan. 1, 2020",
          "start_type": "timestamp",
          "end": null,
          "dynamic_upgrade_deadline": null,
          "subscription_id": "course_MNXXK4TTMUWXMMJ2MZ2XI5LSMV4CW5DFON2DCMBRFMZDAMRU",
          "courseware_access": {
            "has_access": true,
            "error_code": null,
            "developer_message": null,
            "user_message": null,
            "additional_context_user_message": null,
            "user_fragment": null
          },
          "media": {
            "course_image": {
              "uri": "/asset-v1:futurex+test101+2024+type@asset+block@depositphotos_11930317-stock-photo-scantron-test-blocks-and-pencil.jpeg",
              "name": "Course Image"
            }
          },
          "course_image": "/asset-v1:futurex+test101+2024+type@asset+block@depositphotos_11930317-stock-photo-scantron-test-blocks-and-pencil.jpeg",
          "course_about": "https://blue.zeitlabs.com/courses/course-v1:futurex+test101+2024/about",
          "course_sharing_utm_parameters": {
            "facebook": "utm_medium=social&utm_campaign=social-sharing-db&utm_source=facebook",
            "twitter": "utm_medium=social&utm_campaign=social-sharing-db&utm_source=twitter"
          },
          "course_updates": "https://blue.zeitlabs.com/api/mobile/v3/course_info/course-v1:futurex+test101+2024/updates",
          "course_handouts": "https://blue.zeitlabs.com/api/mobile/v3/course_info/course-v1:futurex+test101+2024/handouts",
          "discussion_url": null,
          "video_outline": null,
          "is_self_paced": false
        },
        "certificate": {},
        "course_modes": [
          {
            "slug": "audit",
            "sku": null,
            "android_sku": null,
            "ios_sku": null,
            "min_price": 0
          }
        ]
      },
      {
        "audit_access_expires": null,
        "created": "2024-02-29T12:51:51.983028Z",
        "mode": "audit",
        "is_active": true,
        "course": {
          "id": "course-v1:i18n+i18n+i81n",
          "name": "Learn HTML the hard way",
          "number": "i18n",
          "org": "i18n",
          "start": "2030-01-01T00:00:00Z",
          "start_display": null,
          "start_type": "empty",
          "end": null,
          "dynamic_upgrade_deadline": null,
          "subscription_id": "course_MNXXK4TTMUWXMMJ2NEYTQ3RLNEYTQ3RLNE4DC3Q_",
          "courseware_access": {
            "has_access": false,
            "error_code": "course_not_started",
            "developer_message": "Course has not started",
            "user_message": "Course has not started",
            "additional_context_user_message": null,
            "user_fragment": null
          },
          "media": {
            "course_image": {
              "uri": "/asset-v1:i18n+i18n+i81n+type@asset+block@depositphotos_667560896-stock-photo-word-cloud-online-courses-concept.jpg",
              "name": "Course Image"
            }
          },
          "course_image": "/asset-v1:i18n+i18n+i81n+type@asset+block@depositphotos_667560896-stock-photo-word-cloud-online-courses-concept.jpg",
          "course_about": "https://blue.zeitlabs.com/courses/course-v1:i18n+i18n+i81n/about",
          "course_sharing_utm_parameters": {
            "facebook": "utm_medium=social&utm_campaign=social-sharing-db&utm_source=facebook",
            "twitter": "utm_medium=social&utm_campaign=social-sharing-db&utm_source=twitter"
          },
          "course_updates": "https://blue.zeitlabs.com/api/mobile/v3/course_info/course-v1:i18n+i18n+i81n/updates",
          "course_handouts": "https://blue.zeitlabs.com/api/mobile/v3/course_info/course-v1:i18n+i18n+i81n/handouts",
          "discussion_url": null,
          "video_outline": null,
          "is_self_paced": false
        },
        "certificate": {},
        "course_modes": [
          {
            "slug": "audit",
            "sku": null,
            "android_sku": null,
            "ios_sku": null,
            "min_price": 0
          }
        ]
      }
    ]
  }
}

Screenshot

Outcome

What did you expect?

See list of courses.

What happened instead?

I see empty list dashboard.

Your phone model

iPhone Simulator

Operating system version

iPhone 15 Pro simulator - iOS 17.2

Application version

develop branch (v1.0.0)

[gurhub]

Hey @volodymyr-chekyrta, first of all, thanks for the solution and merge. After your solution, I manually got the raw Data_Dashboard.swift file content and tried it on my machine and I received another parsing error on Xcode's console:

CodingKeys(stringValue: "start_display", intValue: nil)], debugDescription: "Cannot get unkeyed decoding container -- found null value instead", underlyingError: nil))

By following your method, I was able to remove the start_display key from the Data_Dashboard.swift file. And run and test again. Now everything is working as expected.

Best

[volodymyr-chekyrta]

@gurhub makes sense; the startDisplaying field is unused as well.
I've updated PR ✅
Thank you!

[gurhub]

@volodymyr-chekyrta you're welcome!
Best