Expected to decode Array<Any> but found a dictionary instead.", underlyingError: nil

Using Swift
1

I come across the problem "Expected to decode Array but found a dictionary instead.", underlyingError: nil" when I try to decode a jason file. The following is my decode process!

54
542427×1398 384 KB

Can someone give me some advice? It's urgent! Thanks!

2

What does JSON file look like?

3

From the URL in the screenshot:

{
  "data": {
    "url": "https://www.92degreescoffee.com/",
    "photo_url": null,
    "phone_number": null,
    "opening_hours": {
      "monday": "07:45 - 19:00",
      "tuesday": "07:45 - 19:00",
      "wednesday": "07:45 - 19:00",
      "thursday": "07:45 - 19:00",
      "friday": "07:45 - 19:00"
    }
  },
  "code": 1
}
4

Yeah, thanks! I'm new guy here and only 1 pic is allowed:sweat_smile:

5

Ok, the type doesn't match the data.

try

struct OpenHour: Decodable {
    var monday, tuesday, wednesday, thursday, friday: String?
}

struct ShopSpecific: Decodable {
    var url, photoUrl, phoneNumber: String?
    var openingHours: OpenHour
}

struct SpecificInfo: Decodable {
    var data: ShopSpecific, code: Int?
}

And you can do

decoder.keyDecodingStrategy = .convertFromSnakeCase

before decoding to eliminate snake naming.

1 Like
6

Specifically, the problem is that you have declared this:

var opening_hours: [openHour]

but the data doesn't have an array of openHour; it just has a single instance. You want this:

var opening_hours: openHour
7

Same things applies to \SpecificInfo.data as well.

PS

you can put code in ```

```
like this
```

And it'll look

like this
8

It works! Thank you so much!

9

Yeah I get it and it works. Thank you so much!