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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| ## Slack | ||
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| ### Post message to a channel in Slack | ||
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| Follow [Create a bot for your workspace](https://slack.com/intl/en-no/help/articles/115005265703-create-a-bot-for-your-workspace) to create, add a bot to your workspace. Obtain `Bot User OAuth Access Token` to use to authenticate | ||
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| ```swift | ||
| Slack { | ||
| $0.post( | ||
| message: .init( | ||
| token: ProcessInfo().environment["slackBotToken"]!, | ||
| channel: "random", | ||
| text: "Hello from Puma", | ||
| username: "onmyway133" | ||
| ) | ||
| ) | ||
| } | ||
| ``` |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| // | ||
| // Slack.swift | ||
| // PumaCore | ||
| // | ||
| // Created by khoa on 30/12/2019. | ||
| // | ||
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| import Foundation | ||
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| public class Slack { | ||
| public var name: String = "Send message to Slack" | ||
| public var isEnabled = true | ||
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| private var message: Message? | ||
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| public init(_ closure: (Slack) -> Void = { _ in }) { | ||
| closure(self) | ||
| } | ||
| } | ||
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| public extension Slack { | ||
| struct Message { | ||
| let token: String | ||
| let channel: String | ||
| let text: String | ||
| let username: String? | ||
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| public init( | ||
| token: String, | ||
| channel: String, | ||
| text: String, | ||
| username: String | ||
| ) { | ||
| self.token = token | ||
| self.channel = channel | ||
| self.text = text | ||
| self.username = username | ||
| } | ||
| } | ||
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| func post(message: Message) { | ||
| self.message = message | ||
| } | ||
| } | ||
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| extension Slack: Task { | ||
| public func run(workflow: Workflow, completion: @escaping TaskCompletion) { | ||
| guard let message = message else { | ||
| completion(.failure(PumaError.invalid)) | ||
| return | ||
| } | ||
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| let sender = MessageSender() | ||
| sender.send(message: message, completion: { result in | ||
| switch result { | ||
| case .success: | ||
| Deps.console.success("Posted: \(message.text)") | ||
| case .failure(let error): | ||
| Deps.console.error("Failed: \(error.localizedDescription)") | ||
| } | ||
| completion(result) | ||
| }) | ||
| } | ||
| } | ||
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| private class MessageSender { | ||
| struct Response: Decodable { | ||
| let ok: Bool | ||
| let error: String? | ||
| } | ||
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| func send(message: Slack.Message, completion: @escaping (Result<(), Error>) -> Void) { | ||
| guard let baseUrl = URL(string: "https://slack.com/api/chat.postMessage") else { | ||
| completion(.failure(PumaError.invalid)) | ||
| return | ||
| } | ||
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| var components = URLComponents(url: baseUrl, resolvingAgainstBaseURL: false) | ||
| components?.queryItems = [ | ||
| URLQueryItem(name: "token", value: message.token), | ||
| URLQueryItem(name: "channel", value: message.channel), | ||
| URLQueryItem(name: "text", value: message.text), | ||
| URLQueryItem(name: "pretty", value: "1") | ||
| ] | ||
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| if let username = message.username { | ||
| components?.queryItems?.append( | ||
| URLQueryItem(name: "username", value: username) | ||
| ) | ||
| } | ||
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| guard let requestUrl = components?.url else { | ||
| completion(.failure(PumaError.invalid)) | ||
| return | ||
| } | ||
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| var request = URLRequest(url: requestUrl) | ||
| request.allHTTPHeaderFields = [ | ||
| "Accept": "application/json" | ||
| ] | ||
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| let task = URLSession.shared.dataTask(with: request, completionHandler: { data, response, error in | ||
| guard let data = data else { | ||
| completion(.failure(error ?? PumaError.invalid)) | ||
| return | ||
| } | ||
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| do { | ||
| let response = try JSONDecoder().decode(Response.self, from: data) | ||
| if response.ok { | ||
| completion(.success(())) | ||
| } else { | ||
| completion(.failure(PumaError.from(string: response.error))) | ||
| } | ||
| } catch { | ||
| completion(.failure(error)) | ||
| } | ||
| }) | ||
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| task.resume() | ||
| } | ||
| } |