From 18120e3b04a519d784d821aad09f2f30a3a1d1d8 Mon Sep 17 00:00:00 2001
From: Aleksey Kosylo <akosylo@dxfeed.com>
Date: Tue, 5 Mar 2024 12:56:00 +0100
Subject: [PATCH] add FetchDailyCandles sample

---
 DXFeedFramework.xcodeproj/project.pbxproj     |  2 ++
 README.md                                     |  1 +
 .../Contents.swift                            | 26 +++++++++++++++++++
 .../contents.xcplayground                     |  4 +++
 4 files changed, 33 insertions(+)
 create mode 100644 Samples/Playgrounds/FetchDailyCandles.playground/Contents.swift
 create mode 100644 Samples/Playgrounds/FetchDailyCandles.playground/contents.xcplayground

diff --git a/DXFeedFramework.xcodeproj/project.pbxproj b/DXFeedFramework.xcodeproj/project.pbxproj
index 1de354c22..0d6e6765b 100644
--- a/DXFeedFramework.xcodeproj/project.pbxproj
+++ b/DXFeedFramework.xcodeproj/project.pbxproj
@@ -647,6 +647,7 @@
 		6435EE3C2B1F1E9200E8496C /* PrintQuoteEvents.playground */ = {isa = PBXFileReference; lastKnownFileType = file.playground; path = PrintQuoteEvents.playground; sourceTree = "<group>"; xcLanguageSpecificationIdentifier = xcode.lang.swift; };
 		64437A8E2A9DEE6F005929B2 /* InstrumentProfile.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = InstrumentProfile.swift; sourceTree = "<group>"; };
 		64437A912A9DF1DE005929B2 /* NativeInstrumentProfileReader.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NativeInstrumentProfileReader.swift; sourceTree = "<group>"; };
+		644551C92B973A0D0069E3A2 /* FetchDailyCandles.playground */ = {isa = PBXFileReference; lastKnownFileType = file.playground; path = FetchDailyCandles.playground; sourceTree = "<group>"; xcLanguageSpecificationIdentifier = xcode.lang.swift; };
 		6447A5DA2A8E559000739CCF /* ILastingEvent.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ILastingEvent.swift; sourceTree = "<group>"; };
 		6447A5DC2A8E56CF00739CCF /* ITimeSeriesEvent.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ITimeSeriesEvent.swift; sourceTree = "<group>"; };
 		6447A5DE2A8E56FC00739CCF /* IIndexedEvent.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = IIndexedEvent.swift; sourceTree = "<group>"; };
@@ -1059,6 +1060,7 @@
 				640885C62B1F657300E6CF88 /* ScheduleSample.playground */,
 				641C64AE2B344E770023CFAD /* PublishProfiles.playground */,
 				64F9C6C12B4BFD8F003ED014 /* DXFeedconnect.playground */,
+				644551C92B973A0D0069E3A2 /* FetchDailyCandles.playground */,
 			);
 			path = Playgrounds;
 			sourceTree = "<group>";
diff --git a/README.md b/README.md
index 1c42799aa..95f65302a 100644
--- a/README.md
+++ b/README.md
@@ -248,6 +248,7 @@ is a simple demonstration of how to get live updates for Instrument Profiles
 - [ ] DxFeedPublishProfiles is a simple demonstration of how to publish market events
 - [x] [ScheduleSample](https://github.com/dxFeed/dxfeed-graal-swift-api/blob/swift/Samples/Playgrounds/ScheduleSample.playground/Contents.swift)
   is a simple demonstration of how to get various scheduling information for instruments
+- [x] [FetchDailyCandles](https://github.com/dxFeed/dxfeed-graal-swift-api/blob/swift/Samples/Playgrounds/FetchDailyCandles.playground/Contents.swift) is a simple demonstration of how to fetch last N-days of candles for a specified symbol
 
 ## Current State
 
diff --git a/Samples/Playgrounds/FetchDailyCandles.playground/Contents.swift b/Samples/Playgrounds/FetchDailyCandles.playground/Contents.swift
new file mode 100644
index 000000000..7ab013805
--- /dev/null
+++ b/Samples/Playgrounds/FetchDailyCandles.playground/Contents.swift
@@ -0,0 +1,26 @@
+import Cocoa
+import DXFeedFramework
+
+/// Fetches last N days of candles for a specified symbol, prints them, and exits.
+
+// await couldn't use directly in Playground(this is accompanied by errors like: execution stopped with unexpected state)
+Task {
+    let baseSymbol = "AAPL{=d}"
+    var to: Long = Long(Date.now.timeIntervalSince1970 * 1000)
+    let from: Long = Long(Calendar.current.date(byAdding: .day, value: -20, to: Date())!.timeIntervalSince1970 * 1000)
+    let endpoint = try DXEndpoint.getInstance().connect("demo.dxfeed.com:7300")
+    let feed = endpoint.getFeed()
+    guard let task = feed?.getTimeSeries(type: Candle.self, symbol: baseSymbol, fromTime: from, toTime: to) else {
+        print("Async task is nil")
+        exit(0)
+    }
+    let result = await task.result
+    switch result {
+    case .success(let value):
+        value?.forEach({ event in
+            print(event)
+        })
+    case .failure(let error):
+        print(error)
+    }
+}
diff --git a/Samples/Playgrounds/FetchDailyCandles.playground/contents.xcplayground b/Samples/Playgrounds/FetchDailyCandles.playground/contents.xcplayground
new file mode 100644
index 000000000..1c968e7d1
--- /dev/null
+++ b/Samples/Playgrounds/FetchDailyCandles.playground/contents.xcplayground
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<playground version='5.0' target-platform='macos' buildActiveScheme='true' importAppTypes='true'>
+    <timeline fileName='timeline.xctimeline'/>
+</playground>
\ No newline at end of file