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validate status code getting function signature

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This commit is contained in:
ivan grachev 2023-11-10 19:15:24 +03:00
parent e5ae1cf72f
commit f99da5968b
1 changed files with 7 additions and 2 deletions
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9
Shared/Services/TransactionInspector.swift
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@ -16,8 +16,13 @@ struct TransactionInspector {
guard nameHex.count == length,
let url = URL(string: "https://raw.githubusercontent.com/ethereum-lists/4bytes/master/signatures/\(nameHex)")
else { return }
let dataTask = urlSession.dataTask(with: url) { (data, _, _) in
if let data = data, let name = String(data: data, encoding: .utf8), !name.isEmpty {
let dataTask = urlSession.dataTask(with: url) { (data, response, error) in
let statusCode = (response as? HTTPURLResponse)?.statusCode ?? 0
if error == nil,
(200...299).contains(statusCode),
let data = data,
let name = String(data: data, encoding: .utf8),
!name.isEmpty {
DispatchQueue.main.async { completion(name) }
}
}