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I have the bellow function but it seems to not get passed the if let snapshotValue line I believe its because snapshotUrl.value is not a dictionary. If so How do I convert it to one?

func fetchAllPostImages() {

    print("fetchAllPostImages function")

    self.ref.child("Posts").child(self.userID).child(self.postNum).child("Images").observe(.childAdded, with: { snapshot in

        var snapshotUrl = snapshot.childSnapshot(forPath: "ImageUrl")

        var snapshotTimeStamp = snapshot.childSnapshot(forPath: "timeStamp")

        print("fhdsjaklhfkjdsfksahdjksfjlashfkljdhs")

        print(snapshot.childSnapshot(forPath: "ImageUrl"))

        print(snapshotUrl.value, "value")



        if let snapShotValue = snapshotUrl.value as? [String: String] {

            print("jkdfbhksafgsaghsjbbvcbcbcbccbbbbbbbbbbbbbbb")



            for (_, value) in snapShotValue {

                print(value)



                if let imageURL = URL(string: value) {

                    print(imageURL, "image url here")



                    do {

                        let imageAsData = try Data(contentsOf: imageURL)

                        let image = UIImage(data: imageAsData)

                        //                                let ImageObject = Media()

                        //                                ImageObject.image = image

                        var timeStamp = 0.0

                        self.arrayOfImgObj.append(Media(image: image!, timeStamp: timeStamp))

                        self.tableView.reloadData()

                        print(self.arrayOfImgObj.count, "array.count")

                    } catch {

                        print("imageURL was not able to be converted into data")

                    }

                }

            }

        }

    })

}

Output of the func:

fetchAllPostImages function 

fhdsjaklhfkjdsfksahdjksfjlashfkljdhs 

Snap (ImageUrl)

     https://firebasestge.googleapis.com/v0/b/copyyubidatabase.appspot.com/o/rVNvbWrC9aarXOTSHNXGoaIeR5B3%2Fpost:563592299%2Fimage1?alt=media&token=a0c4aeda-769a-48ac-85c8-ab595ccfdf08

     Optional(https://fireestorage.googleapis.com/v0/b/copyyubidatabase.appspot.com/o/rVNvbWrC9aarXOTSHNXGoaIeR5B3%2Fpost:563592299%2Fimage1?alt=media&token=a0c4aeda-769a-48ac-85c8-ab595ccfdf08)

     value

It looks like snapshotUrl.value is an Optional-wrapped URL. If you want to convert it to a Dictionary you just need a key and a value.

We don't have access to the data structure of snapshot to tell you how to use it exactly.

Here is some playground code that demonstrates what I mean. This works as-is:

import UIKit

import PlaygroundSupport



struct SnapShot {

    func childSnapshot(forPath: String) -> URLWrapper? {

        return URLWrapper(url: URL(string: "https://image.shutterstock.com/image-vector/sample-red-square-grunge-stamp-260nw-338250266.jpg")!)

    }

}



struct URLWrapper {

    var url:URL



    var value:String? {

        get {

            return url.absoluteString

        }

    }

}



func fetchAllPostImages() {

    let session = URLSession.shared



    print("fetchAllPostImages function")

    let snapshot = SnapShot()

    if let snapshotUrl = snapshot.childSnapshot(forPath: "ImageUrl"), let snapShotValue = snapshotUrl.value, let imageURL = URL(string: snapShotValue) {

        let task = session.dataTask(with: imageURL, completionHandler: { (data, response, error) in

            if let data = data {

                let image = UIImage(data: data)

                print(image ?? "none")

            }

        })

        task.resume()

    }

}



PlaygroundPage.current.needsIndefiniteExecution = true



fetchAllPostImages()