# waterfall

Create waterfall charts to show events in causal order.

![An example network waterfall](https://github.com/DonChangfoot/waterfall/blob/master/example.png?raw=true)

## Installation

You can make the `waterfall` CLI script accessible from anywhere in your path:

```
sudo npm install -g waterfall
```

## Usage

```bash
waterfall <data-file>
```

## Data file format

Getting your first waterfall chart up and running is a breeze:

`waterfall` accepts line-separated JSON events or a JSON array of events, where
each event has a start and end [timestamp](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/now) and a string label:

```json
{ "start": 1587645957644, "end": 1587645963195, "label": "DNS" }
{ "start": 1587645963195, "end": 1587645968900, "label": "TCP" }
{ "start": 1587645968910, "end": 1587646249816, "label": "TLS" }
```

**That's it!**

There are no dependencies except Chrome, which we use in headless mode to screenshot the HTML chart to a PNG.


### Command line options

You can customize bar colors by default and/or by label prefix:

```bash
waterfall --BAR-COLOR=blue --BAR-COLOR=dns:yellow <data-file>
````

You can also exclude events from the cumulative sum shown at the bottom of the
chart:

```bash
waterfall --EXCLUDE="dns lookup" <data-file>
````

## Acknowledgements

This script was created by [Joran Dirk Greef](https://github.com/jorangreef) and [Donovan Changfoot](https://github.com/DonChangfoot) as part of performance testing work on [Mojaloop](https://mojaloop.io) by [Coil](https://coil.com).


Create waterfall charts to show events in causal order. 

Socket Acquires Coana to Bring Reachability Analysis to Every Appsec Team

waterfall

Create waterfall charts to show events in causal order

jorandirkgreef

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waterfall

waterfall

Installation

Usage

Data file format

Command line options

Acknowledgements

Keywords

Related posts

waterfall

waterfall

Installation

Usage

Data file format

Command line options

Acknowledgements

Keywords

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