Results for use-event-timestamp

SystemTime timestamp wrapper for RustUse event primitives.

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

This gem is a logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/plugin install gemname. This gem is not a stand-alone program

With a JSON-RPC server, client services via a myriad of language options, including bash+nc, ruby, and java, send messages that ultimately are used to create events in Google Calendar. These events may be used to easily identify when an event (a Cron Job, batch script, etc...) started, stopped, and what its exit status was. For an organization that relies heavily upon the success, timeliness, and regularlity of many many batch jobs, a tool like that can prove to be a real benefit to systems administrators.

This gem is a logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/plugin install gemname. This gem is not a stand-alone program

Convert taskwarrior tasks to calendar events. The due timestamp, optionally scheduled timestamp and description of a task are used to create a calendar event.

This filter will adds a sequence number to a log entry. At the start of logstash the sequence will started with a timestamp and will incremented by 1 for each log event. This gem is a logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/plugin install gemname. This gem is not a stand-alone program

Temporally Ordered IDs. Generate universally unique identifiers (UUID) that sort lexically in time order. Torid exists to solve the problem of generating UUIDs that when ordered lexically, they are also ordered temporally. I needed a way to generate ids for events that are entering a system with the following criteria: 1. Fast ID generation 2. No central coordinating server/system 3. No local storage 4. Library code, that is multiple apps on the same machine can use the same code and they will not generate duplicate ids 5. Eventually stored in a UUID field in a database. So 128bit ids are totally fine. The IDs that Torid generates are 128bit IDs made up of 2, 64bit parts. * 64bit microsecond level UNIX timestamp * 64bit hash of the system hostname, process id and a random value.

# Quick Start The Owner API uses the JSON format, and must be accessed over a [secure connection](https://en.wikipedia.org/wiki/HTTPS). Let’s assume that the access token provided by your account manager is “TOKEN”. Here’s how to get the list of ids of all your invoices from the first week of August with a shell script: ```bash query="end_date=2018-08-08T00%3A00%3A00%2B00%3A00&start_date=2018-08-01T00%3A00%3A00%2B00%3A00" curl -i "https://api-eu.getaround.com/owner/v1/invoices?${query}" \ -H "Authorization: Bearer TOKEN" \ -H "Accept:application/json" \ -H "Content-Type:application/json" ``` And here’s how to get the invoice with the id 12345: ```bash curl -i "https://api-eu.getaround.com/owner/v1/invoices/12345" \ -H "Authorization: Bearer TOKEN" \ -H "Accept: application/json" \ -H "Content-Type: application/json"" ``` See the [endpoints section](#tag/Invoices) of this guide for details about the response format. Dates in request params should follow the ISO 8601 standard. # Authentication All requests must be authenticated with a [bearer token header](https://tools.ietf.org/html/rfc6750#section-2.1). You token will be sent to you by your account manager. Unauthenticated requests will return a 401 status. # Pagination The page number and the number of items per page can be set with the “page” and “per_page” params. For example, this request will return the second page of invoices, and 50 invoices per page: `https://api-eu.getaround.com/owner/v1/invoices?page=2&per_page=50` Both of these params are optional. The default page size is 30 items. The Getaround Owner API follows the [RFC 8288 convention](https://datatracker.ietf.org/doc/html/rfc8288) of using the `Link` header to provide the `next` page URL. Please don't build the pagination URLs yourself. The `next` page will be missing when you are requesting the last available page. Here's an example response header from requesting the second page of invoices `https://api-eu.getaround.com/owner/v1/invoices?page=2&per_page=50` ``` Link: <https://api-eu.getaround.com/owner/v1/invoices?page=3&per_page=50>; rel="next" ``` # Throttling policy and Date range limitation We have throttling policy that prevents you to perform more than 100 requests per min from the same IP. Also, there is a limitation on the size of the range of dates given in params in some requests. All requests that need start_date and end_date, do not accept a range bigger than 30 days. # Webhooks Getaround can send webhook events that notify your application when certain events happen on your account. This is especially useful to follow the lifecycle of rentals, tracking for example bookings or cancellations. ### Setup To set up an endpoint, you need to define a route on your server for receiving events, and then <a href="mailto:owner-api@getaround.com">ask Getaround</a> to add this URL to your account. To acknowledge receipt of a event, your endpoint must: - Return a `2xx` HTTP status code. - Be a secure `https` endpoint with a valid SSL certificate. ### Testing Once Getaround has set up the endpoint, and it is properly configured as described above, a test `ping` event can be sent by clicking the button below: <form action="/docs/api/owner/fire_ping_webhook" method="post"><input type="submit" value="Send Ping Event"></form> You should receive the following JSON payload: ```json { "data": { "ping": "pong" }, "type": "ping", "occurred_at": "2019-04-18T08:30:05Z" } ``` ### Retries Webhook deliveries will be attempted for up to three days with an exponential back off. After that point the delivery will be abandoned. ### Verifying Signatures Getaround will also provide you with a secret token, which is used to create a hash signature with each payload. This hash signature is passed along with each request in the headers as `X-Drivy-Signature`. Suppose you have a basic server listening to webhooks that looks like this: ```ruby require 'sinatra' require 'json' post '/payload' do push = JSON.parse(params[:payload]) "I got some JSON: #{push.inspect}" end ``` The goal is to compute a hash using your secret token, and ensure that the hash from Getaround matches. Getaround uses an HMAC hexdigest to compute the hash, so you could change your server to look a little like this: ```ruby post '/payload' do request.body.rewind payload_body = request.body.read verify_signature(payload_body) push = JSON.parse(params[:payload]) "I got some JSON: #{push.inspect}" end def verify_signature(payload_body) signature = 'sha1=' + OpenSSL::HMAC.hexdigest(OpenSSL::Digest.new('sha1'), ENV['SECRET_TOKEN'], payload_body) return halt 500, "Signatures didn't match!" unless Rack::Utils.secure_compare(signature, request.env['HTTP_X_DRIVY_SIGNATURE']) end ``` Obviously, your language and server implementations may differ from this code. There are a couple of important things to point out, however: No matter which implementation you use, the hash signature starts with `sha1=`, using the key of your secret token and your payload body. Using a plain `==` operator is not advised. A method like secure_compare performs a "constant time" string comparison, which renders it safe from certain timing attacks against regular equality operators. ### Best Practices - **Acknowledge events immediately**. If your webhook script performs complex logic, or makes network calls, it’s possible that the script would time out before Getaround sees its complete execution. Ideally, your webhook handler code (acknowledging receipt of an event by returning a `2xx` status code) is separate of any other logic you do for that event. - **Handle duplicate events**. Webhook endpoints might occasionally receive the same event more than once. We advise you to guard against duplicated event receipts by making your event processing idempotent. One way of doing this is logging the events you’ve processed, and then not processing already-logged events. - **Do not expect events in order**. Getaround does not guarantee delivery of events in the order in which they are generated. Your endpoint should therefore handle this accordingly. We do provide an `occurred_at` timestamp for each event, though, to help reconcile ordering.

= Cirron Cirron measures a piece of Ruby code and reports back several performance counters: CPU instruction count, branch misses, page faults and time spent measuring. It uses the Linux perf events interface or @ibireme's KPC demo[https://gist.github.com/ibireme/173517c208c7dc333ba962c1f0d67d12] on OSX. It can also trace syscalls using +strace+, Linux only! == Prerequisites - Linux with perf events support / Apple ARM OSX - C++ - Ruby 3.x == Usage === Performance Counters $ sudo irb irb(main):001> require 'cirron' => true irb(main):002* c = Cirron::collector do irb(main):003* puts "Hello" irb(main):004> end Hello => Counter(time_enabled_ns: 110260, instruction_count: 15406, branch_misses: 525, page_faults: 0) === Tracing Syscalls $ sudo irb irb> require 'cirron' => true irb> trace = Cirron::tracer do irb> # Your code here irb> puts "Hello" irb> end => [#<Syscall:0x00007c6c1a4b3608 @args="1, [{iov_base=\"Hello\", iov_len=5}, {iov_base=\"\\n\", iov_len=1}], 2", @duration="0.000201", @name="writev", @pid="2261962", @retval="6", @timestamp="1720285300.334976">] # Save the trace for ingesting to Perfetto irb> File.write("/tmp/trace", Cirron::to_tef(trace)) => 267 === Tampering with Syscalls Available tampering actions are: error: Inject a fault with the specified errno. retval: Inject a success with the specified return value. signal: Deliver the specified signal on syscall entry. delay_enter: Delay syscall entry by the specified time. delay_exit: Delay syscall exit by the specified time. poke_enter: Modify memory at argN on syscall entry. poke_exit: Modify memory at argN on syscall exit. syscall: Inject a different syscall instead. The when argument can be used to specify when to perform the tampering. See the Tampering section of the [strace manual page](https://man7.org/linux/man-pages/man1/strace.1.html) for more detailed explanaition of the arguments. ``` $ sudo irb irb> require 'cirron' irb> injector = Cirron.injector irb> injector.inject("openat", "error", "ENOSPC") irb> injector.inject("openat", "delay_enter", "1s", when_condition="2+2") irb> injector.run do irb> # Open now fails with "No space left on device" and every irb> # other call to `openat` will be delayed by 1s. irb> File.open("test.txt", "w") irb> end ``` == Additional Information For more detailed information, please visit the project's GitHub page: https://github.com/s7nfo/Cirron

== Confidently Build Terminal Apps Rooibos[https://rooibos.run] helps you build interactive terminal applications. Keep your code understandable and testable as it scales. Rooibos handles keyboard, mouse, and async work so you can focus on behavior and user experience. gem install rooibos <i>Currently in beta. APIs may change before 1.0.</i> === Get Started in Seconds rooibos new my_app cd my_app rooibos run That's it. You have a working app with keyboard navigation, mouse support, and clickable buttons. Open <tt>lib/my_app.rb</tt> to make it your own. --- === The Pattern \Rooibos uses Model-View-Update, the architecture behind Elm[https://guide.elm-lang.org/architecture/], Redux[https://redux.js.org/], and {Bubble Tea}[https://github.com/charmbracelet/bubbletea]. State lives in one place. Updates flow in one direction. The runtime handles rendering and runs background work for you. --- === Hello, MVU The simplest \Rooibos app. Press any key to increment the counter. Press <tt>Ctrl</tt>+<tt>C</tt> to quit. require "rooibos" module Counter # Init: How do you create the initial model? Init = -> { 0 } # View: What does the user see? View = -> (model, tui) { tui.paragraph(text: <<~END) } Current count: #{model}. Press any key to increment. Press Ctrl+C to quit. END # Update: What happens when things change? Update = -> (message, model) { if message.ctrl_c? Rooibos::Command.exit elsif message.key? model + 1 end } end Rooibos.run(Counter) That's the whole pattern: Model holds state, Init creates it, View renders it, and Update changes it. The runtime handles everything else. --- === Your First Real Application A file browser in sixty lines. It opens files, navigates directories, handles errors, styles directories and hidden files differently, and supports vim-style keyboard shortcuts. If you can do this much with this little code, imagine how easy _your_ app will be to build. require "rooibos" module FileBrowser # Model: What state does your app need? Model = Data.define(:path, :entries, :selected, :error) Init = -> { path = Dir.pwd entries = Entries[path] Ractor.make_shareable( # Ensures thread safety Model.new(path:, entries:, selected: entries.first, error: nil)) } View = -> (model, tui) { tui.block( titles: [model.error || model.path, { content: KEYS, position: :bottom, alignment: :right}], borders: [:all], border_style: if model.error then tui.style(fg: :red) else nil end, children: [tui.list(items: model.entries.map(&ListItem[model, tui]), selected_index: model.entries.index(model.selected), highlight_symbol: "", highlight_style: tui.style(modifiers: [:reversed]))] ) } Update = -> (message, model) { return model.with(error: ERROR) if message.error? model = model.with(error: nil) if model.error && message.key? if message.ctrl_c? || message.q? then Rooibos::Command.exit elsif message.home? || message.g? then model.with(selected: model.entries.first) elsif message.end? || message.G? then model.with(selected: model.entries.last) elsif message.up_arrow? || message.k? then Select[:-, model] elsif message.down_arrow? || message.j? then Select[:+, model] elsif message.enter? then Open[model] elsif message.escape? then Navigate[File.dirname(model.path), model] end } private # Lines below this are implementation details KEYS = "↑/↓/Home/End: Select | Enter: Open | Esc: Navigate Up | q: Quit" ERROR = "Sorry, opening the selected file failed." ListItem = -> (model, tui) { -> (name) { modifiers = name.start_with?(".") ? [:dim] : [] fg = :blue if name.end_with?("/") tui.list_item(content: name, style: tui.style(fg:, modifiers:)) } } Select = -> (operator, model) { new_index = model.entries.index(model.selected).public_send(operator, 1) model.with(selected: model.entries[new_index.clamp(0, model.entries.length - 1)]) } Open = -> (model) { full = File.join(model.path, model.selected.delete_suffix("/")) model.selected.end_with?("/") ? Navigate[full, model] : Rooibos::Command.open(full) } Navigate = -> (path, model) { entries = Entries[path] model.with(path:, entries:, selected: entries.first, error: nil) } Entries = -> (path) { Dir.children(path).map { |name| File.directory?(File.join(path, name)) ? "#{name}/" : name }.sort_by { |name| [name.end_with?("/") ? 0 : 1, name.downcase] } } end Rooibos.run(FileBrowser) --- === Batteries Included ==== Commands Applications fetch data, run shell commands, and set timers. \Rooibos Commands run off the main thread and send results back as messages. <b>HTTP requests:</b> Update = -> (message, model) { case message in :fetch_users [model.with(loading: true), Rooibos::Command.http(:get, "/api/users", :got_users)] in { type: :http, envelope: :got_users, status: 200, body: } model.with(loading: false, users: JSON.parse(body)) in { type: :http, envelope: :got_users, status: } model.with(error: "HTTP #{status}") end } <b>Shell commands:</b> Update = -> (message, model) { case message in :list_files Rooibos::Command.system("ls -la", :listed_files) in { type: :system, envelope: :listed_files, stdout:, status: 0 } model.with(files: stdout.lines.map(&:chomp)) in { type: :system, envelope: :listed_files, stderr:, status: } model.with(error: stderr) end } <b>Timers:</b> Update = -> (message, model) { case message in { type: :timer, envelope: :tick, elapsed: } [model.with(frame: model.frame + 1), Rooibos::Command.wait(1.0 / 24, :tick)] end } <b>And more!</b> \Rooibos includes <tt>all</tt>, <tt>batch</tt>, <tt>bubble</tt>, <tt>cancel</tt>, <tt>custom</tt>, <tt>deliver</tt>, <tt>exit</tt>, <tt>http</tt>, <tt>map</tt>, <tt>open</tt>, <tt>system</tt>, <tt>tick</tt>, and <tt>wait</tt> commands. You can also define your own custom commands for complex orchestration. Every command produces a message, and Update handles it the same way. ==== Testing \Rooibos makes TUIs so easy to test, you'll save more time by writing tests than by not testing. <b>Unit test Update, View, and Init.</b> No terminal needed. Test helpers included. def test_moves_selection_down_with_j model = Ractor.make_shareable(FileBrowser::Model.new( path: "/", entries: %w[bin exe lib], selected: "bin", error: nil)) message = RatatuiRuby::Event::Key.new(code: "j") result = FileBrowser::Update.call(message, model) assert_equal "exe", result.selected end <b>Style assertions.</b> Draw to a headless terminal, verify colors and modifiers. def test_directories_are_blue with_test_terminal(60, 10) do model = Ractor.make_shareable(FileBrowser::Model.new( path: "/", entries: %w[file.txt subdir/], selected: "file.txt", error: nil)) widget = FileBrowser::View.call(model, RatatuiRuby::TUI.new) RatatuiRuby.draw { |frame| frame.render_widget(widget, frame.area) } assert_blue(1, 2) # "subdir/" at column 1, row 2 end end <b>System tests.</b> Inject events, run the full app, snapshot the result. def test_selection_moves_down with_test_terminal(120, 30) do Dir.mktmpdir do |dir| FileUtils.touch(File.join(dir, "a")) FileUtils.touch(File.join(dir, "b")) FileUtils.touch(File.join(dir, "c")) inject_key(:down) inject_key(:ctrl_c) # Tests use explicit params to inject deterministic initial state. Rooibos.run( model: Ractor.make_shareable(FileBrowser::Model.new( path: dir, entries: %w[a b c], selected: "a", error: nil)), view: FileBrowser::View, update: FileBrowser::Update ) assert_snapshots("selection_moved_down") do |lines| title = "┌/tmp/test#{'─' * 107}┐" lines.map do |l| l.gsub(/┌#{Regexp.escape(dir)}[^┐]*┐/, title) end end end end end Snapshots record both plain text and ANSI colors. Normalization blocks mask dynamic content (timestamps, temp paths) for cross-platform reproducibility. Run <tt>UPDATE_SNAPSHOTS=1 rake test</tt> to regenerate baselines. ==== Scale Up Large applications decompose into fragments. Each fragment has its own Model, View, Update, and Init. Parents compose children. The pattern scales. The Router DSL eliminates boilerplate: module Dashboard include Rooibos::Router route :stats, to: StatsPanel route :network, to: NetworkPanel receive_events :ctrl_c, -> { Rooibos::Command.exit } only when: -> (_message, model) { !model.modal_open } do receive_events :q, -> { Rooibos::Command.exit } forward_events :s, to: :stats, as: :fetch forward_events :p, to: :network, as: :ping end Update = from_router # ... Model, Init, View below end Declare routes and event handlers. The router generates Update for you. Use guards to ignore messages when needed. ==== CLI The <tt>rooibos</tt> command scaffolds projects and runs applications. rooibos new my_app # Generate project structure rooibos run # Run the app in current directory Generated apps include tests, type signatures, and a working welcome screen with keyboard and mouse support. --- === The Ecosystem \Rooibos builds on RatatuiRuby[https://www.ratatui-ruby.dev], a Rubygem built on Ratatui[https://ratatui.rs]. You get native performance with the joy of Ruby. \Rooibos is one way to manage state and composition. Kit is another. ==== Rooibos[https://www.rooibos.run] Model-View-Update architecture. Inspired by Elm, Bubble Tea, and React + Redux. Your UI is a pure function of state. - Functional programming with MVU - Commands work off the main thread - Messages, not callbacks, drive updates ==== {Kit}[https://sr.ht/~kerrick/ratatui_ruby/#chapter-3-the-object-path--kit] (Coming Soon) Component-based architecture. Encapsulate state, input handling, and rendering in reusable pieces. - OOP with stateful components - Separate UI state from domain logic - Built-in focus management & click handling Both use the same widget library and rendering engine. Pick the paradigm that fits your brain. --- === Links [Get Started] {Getting Started}[https://www.rooibos.run/docs/trunk/doc/getting_started/index_md.html], {Tutorial}[https://www.rooibos.run/docs/trunk/doc/tutorial/index_md.html], {Examples}[https://www.rooibos.run/docs/trunk/examples/app_fractal_dashboard/README_md.html] [Coming From...] {React/Redux}[https://www.rooibos.run/docs/trunk/doc/getting_started/for_react_developers_md.html], {BubbleTea}[https://www.rooibos.run/docs/trunk/doc/getting_started/for_go_developers_md.html], {Textual}[https://www.rooibos.run/docs/trunk/doc/getting_started/for_python_developers_md.html] [Learn More] {Essentials}[https://www.rooibos.run/docs/trunk/doc/essentials/index_md.html], {Scaling Up}[https://www.rooibos.run/docs/trunk/doc/scaling_up/index_md.html], {Best Practices}[https://www.rooibos.run/docs/trunk/doc/best_practices/index_md.html], {Troubleshooting}[https://www.rooibos.run/docs/trunk/doc/troubleshooting/index_md.html] [Community] {Forum}[https://forum.setdef.com/c/rooibos], {Announcements}[https://forum.setdef.com/tags/c/rooibos/announcement], {Bug Tracker}[https://forum.setdef.com/tags/c/rooibos/bug], {Contribution Guide}[https://github.com/setdef/Rooibos/blob/trunk/CONTRIBUTING.md], {Code of Conduct}[https://github.com/setdef/Rooibos/blob/trunk/CODE_OF_CONDUCT.md] --- [Website] https://rooibos.run [Source] https://github.com/setdef/Rooibos [RubyGems] https://rubygems.org/gems/rooibos © 2026 Kerrick Long · Library: LGPL-3.0-or-later · Website: CC-BY-NC-ND-4.0 · Snippets: MIT-0

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