Found nil NSURL POSt request Swift

Question

In my POST request , my URL throws an "unexpectedly found nil while unwrapping an Optional value" error. This is what it looks like:

    let imageUrl = NSURL(string: "http://88.143.30.77/app_backend/public/api/v1/image?_r={rec_id}")!
    let request = NSMutableURLRequest(URL: imageUrl)
    request.HTTPMethod = "POST"

If I remove the "?_r={rec_id}" part in the URL, the error goes away, but I have no idea how to fix it, because that's the URL I need to send my image to. Any help is much appreciated!

That URL is invalid because it cannot contain `{` and `}`. You will have to encode the query parameters first. — Sulthan, Mar 22 '16 at 11:45

paulvs · Answer 1 · 2016-03-22T01:16:59.953

1

I suspect the {rec_id} should be replaced with an actual value. You should have something like this:

let imageUrl = NSURL(string: "http://88.143.30.77/app_backend/public/api/v1/image?_r=123456")!
let request = NSMutableURLRequest(URL: imageUrl)
request.HTTPMethod = "POST"

Documentation often uses angled brackets or curly braces to indicate where a value should be inserted. The angled brackets or curly braces themselves, along with the placeholder value, are what is replaced.

edited Mar 22 '16 at 01:16

answered Mar 22 '16 at 01:11

paulvs

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You should tell the OP how to interpolate strings, like `"\(myValue)"` – brimstone Mar 22 '16 at 01:13

score 0 · Answer 2 · edited May 23 '17 at 12:15

0

I found the fix here: NSURL found nil while unwraping an Optional value .

I needed to encode the whole string

edited May 23 '17 at 12:15

Community

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answered Mar 22 '16 at 01:16

Nch

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Is `rec_id` not a value you need to put into the URL? – brimstone Mar 22 '16 at 01:21
Also do yourself a favor by using `if let` or `guard` to handle other potential `nil` `NSURL` return values instead of crashing again. – Price Ringo Mar 22 '16 at 02:37

Found nil NSURL POSt request Swift

2 Answers2