The Logger is a USB-powered device that plugs into your computer and logs all the time you spend on it. It’s designed to work out of the box, so you can use the pre-configured logger anytime and anywhere.
The datadog ios crash reporting is designed to work out of the box, you can use the pre-configured logger anytime.
Usage
LogDog is built to operate right out of the box, so you can use the pre-configured logger whenever and anywhere you want:
sugar.debug(“hi”) sugar.mistake (“somethings went wrong”)
Alternately, create a local copy and make changes:
logger = suggar logger[“path”] var logger = suggar logger[“path”] var logger = suggar logger.debug = “/me” (“hi”)
With only a label, you can easily build a logger that uses the preset log handler:
logger = Logger.sugar; var logger = Logger.sugar; var logger = Logger (“worker:a”) logger.info logger.info logger.info logger.info logger.info logger.info logger.info logger (“hi”)
SugarLogHandler
SugarLogHandler is the key component that makes everything function.
The following code sample demonstrates how to create a SugarLogHandler and utilize it to get the logging system up and running.
LoggingSystem.bootstrap indentify /!!! You’ll need a sink, an appender, and an optional errorHandler to create your own SugarLogHandler. sink = LogSinks; let sink = LogSinks; let sink = LogSinks; builtin.short let appender = TextLogAppender.stdout let errorHandler = error: Error in print(“LogError: (error)”) let errorHandler = error: Error in print(“LogError: (error)”) SugarLogHandler(label: label, sink: sink, appender: appender, errorHandler: errorHandler) / var handler = SugarLogHandler(label: label, sink: sink, appender: appender, errorHandler: errorHandler) To register values that are evaluated during logging, utilize dynamicMetadata. AuthService.shared.userId = handler.dynamicMetadata[“currentUserId”] = handler.dynamicMetadata[“currentUserId”] = handler.dynamicMetadata[“currentUserId”] = handler.dynamicMetadata[“currentUserId” logger.error = Logger(label: “app”) let logger = Logger(label: “app”) (“Something went wrong”)
Sink
Sinks are used to handle log records.
A sink may be anything from a formatter to a filter to a hook to a chain of sinks.
Formatter
With only a closure, you can make a formatter sink.
allow sink to be equal to LogSinks.firstly. format “($0.entry.level.uppercased) ($0.entry.message)n” format “($0.entry.level.uppercased) ($0.entry.message)n” DEBUG: / DEBUG: DEBUG: DEBUG: DEBUG: DEBUG: hello
Alternatively, you may utilize the built-in tidy formatters directly.
let medium = LogSinks.BuiltIn.medium / default sink for sugar loggers / Output: / / 20:40:56.850 E/App main.swift.39: poor response let short = LogSinks.BuiltIn.short / Output: / / E: bad response / C: can not connect to database / 20:40:56.850 C/App main.swift.41: url=/me, status code=404 long = LogSinks.BuiltIn.long / Output: / / / 2020-11-15 20:46:31.157 can’t connect to database APP ERROR (main.swift:39 run(_:)) / / poor response / / url=/me / status code=404 / APP ERROR (main.swift:39 run(_:)) / / APP ERROR (main.swift:39 run(_:)) / APP ERROR (main.swift:39 run(_:)) / APP E ═══════════════════════════════════════════════
Filter
With only a closure, you can make a filter sink.
sink = LogSinks; let sink = LogSinks; let sink = LogSinks; first and foremost. filter $0.entry.source!= “LogDog” / logs from LogDog will be ignored.
DSL
Alternatively, you may use the built-in expressive dsl to make one.
sink = LogSinks; let sink = LogSinks; let sink = LogSinks; BuiltIn.short.contains(“private”).when(.path) let sink = LogSinks deny when(.level) BuiltIn.short greaterThanOrEqualTo(.error) is a function that compares two values. allow
Concat
Sinks may be chained together, allowing one sink to connect to another.
let sink = sinkA + sinkB + sinkC / + sinkD +… / or sinkA.concat(sinkB) .concat(sinkD) = concat(sinkC) = concat(sinkD) = concat(sinkC) = concat(sinkD) = concat(
Many frequently used operators are included with LogDog.
Prefixes and suffixes
sink = LogSinks; let sink = LogSinks; let sink = LogSinks; BuiltIn.short.prefix(” “) / Output: / E: a poor reaction sink = LogSinks; let sink = LogSinks; let sink = LogSinks; / Output: BuiltIn.short.suffix(” “) / E: a poor reaction
Encode
let sink = LogSinks.encode(JSONEncoder())
Crypto
sink = LogSinks; let sink = LogSinks; let sink = LogSinks; first and foremost. encode(JSONEncoder()) is a method for encoding data. decryption (using: key, cipher: .ChaChaPoly)
Compress
sink = LogSinks; let sink = LogSinks; let sink = LogSinks; first and foremost. encode(JSONEncoder()) is a method for encoding data. compress(.COMPRESSION LZFSE)
Schedule
Sinks processing may take a long time, so if you don’t want it to hold down your work, use Scheduler to make logging asynchronous.
sink = LogSinks; let sink = LogSinks; let sink = LogSinks; first and foremost. sink(on: dispatchQueue) / or an operationQueue, or other custom schedulers, such as an event scheduler .encode(JSONEncoder()) / the time-consuming part of the operation starts. .encrypt(key, cipher:.ChaChaPoly).encrypt(key, cipher:.ChaChaPoly).encrypt(key, cipher:.ChaChaPol compress(.COMPRESSION LZFSE)
Hook
The logging may be asynchronous due to Scheduler.
It implies that the sinking may have occurred in a different setting.
To capture and send the context, use hook with entry.parameters.
Value = CustomSinkContext let date = Date() let thread = LogHelper.thread private struct CustomSinkContext: LogParameterKey typealias let customSink: AnyLogSinkVoid, String> = AnyLogSinkVoid, String> = AnyLogSinkVoid, String> = AnyLogSinkVoid, String //! beforeSink: before the log creation. .init() $parameters[CustomSinkContext.self] $parameters[CustomSinkContext.self] $parameters[CustomSinkContext.self] $parameters[ ! sink: record, next in, next in, next in, next in, next in, next in, next in, next in It’s possible that the sink isn’t in the same place as the log generation. sink.record (next: next) in guard (record) -> String? let record.entry.parameters = context [CustomSinkContext.self] else let time = LogHelper.format(context.date, using “HH:mm:ss.SSS”) let thread = context.thread /
Please keep in mind that when you use encode, all arguments containing a string as a key will be encoded as well.
First and foremost, LogSinks.hook $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ .encode(JSONEncoder()).encode(JSONEncoder()).encode(JSONEncoder() /* “currentUserId”: “1”, “appName”: “LogDog”, “appVersion”: “0.0.1”, “date”: “2020-11-19T01:12:37.001Z” */ “label”: “app”, “level”: “debug”, “metadata”: /…
Appender
Appenders are the places where log records are sent.
Appenders that come pre-installed
OSLogAppender
Strings are appended to the underlying OSLog.
appender = OSLogAppender; let appender = OSLogAppender; let appender = OSLog (osLog)
TextLogAppender
Strings are appended to the underlying TextOutputStream.
appender = TextLogAppender; let appender = TextLogAppender; let appender = TextLog (stream) TextLogAppender should be set to stdout. let stderr = TextLogAppender stdout stderr
MultiplexLogAppender
Outputs are appended to the underlying appenders.
When concurrent is true, a dispatch group is utilized to parallelize all appenders’ adding. MultiplexLogAppender(concurrent: true, a, b, c, d/*,…*/)
FileLogAppender
WIP
- [ ] asynchronous
- [ ] rotate automatically
- [ ] …
You can discover additional integrations at LogDogCommunity in addition to the sinks/appenders listed above!
LogDogChalk
LogDog’s output may be colored.
LogDogCryptoSwift
LogDog’s output should be encrypted.
LogDogCocoaLumberjack
Add the LogDog output to CocoaLumberjack.
Don’t see the sink or faucet you’re looking for? Contributions are much appreciated!
Installation
Swift Package Manager is a program that allows you to manage your
.package(url: “https://github.com/luoxiu/LogDog.git”, from: “0.2.0”),.package(url: “https://github.com/luoxiu/LogDog.git”, from: “0.2.0”),.package(url:
CocoaPods
‘LogDog’, ‘> 0.2.0’ pod
GitHub
https://github.com/luoxiu/LogDog
The datadog agentless logging is a service designed to work out of the box. It uses pre-configured logger that can be used anytime.
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