arlo-go/README.md

# arlo-go
![](gopher-arlo.png)
> Go package for interacting with Netgear's Arlo camera system.

---
### Now in Go!
I love Go. That is why I decided to write this library! I am the creator of the first [arlo](https://github.com/jeffreydwalter/arlo) library written in Python.

My goal is to bring parity to the Python version asap. If you know what you're doing in Go, I would appreciate any feedback on the general structure of the library, bugs found, contributions, etc.

---
It is by no means complete, although it does expose quite a bit of the Arlo interface in an easy to use Go pacakge. As such, this package does not come with unit tests (feel free to add them, or I will eventually) or guarantees.
**All [contributions](https://github.com/jeffreydwalter/arlo/issues?q=is%3Aissue+is%3Aopen+label%3A%22help+wanted%22) are welcome and appreciated!**

**Please, feel free to [contribute](https://github.com/jeffreydwalter/arlo/issues?q=is%3Aissue+is%3Aopen+label%3A%22help+wanted%22) to this repo or buy Jeff a beer!** [![Donate](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=R77B7UXMLA6ML&lc=US&item_name=Jeff%20Needs%20Beer&item_number=buyjeffabeer&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted)

---
### Generous Benefactors (Thank you!)
No beers for Jeff yet! 🍺

---
### Awesomely Smart Contributors (Thank you!)
Just me so far...

If You'd like to make a diffrence in the world and get your name on this most prestegious list, have a look at our [help wanted](https://github.com/jeffreydwalter/arlo/issues?q=is%3Aissue+is%3Aopen+label%3A%22help+wanted%22) section!

---
### Filing an Issue
Please read the [Issue Guidelines and Policies](https://github.com/jeffreydwalter/arlo/wiki/Issue-Guidelines-and-Policies) wiki page **BEFORE** you file an issue. Thanks.

---

## Install
```bash
# Install latest stable package
$ go get github.com/jeffreydwalter/arlo-go

# Note: This package uses the `go dep` package for dependency management. If you plan on contributing to this package, you will be required to use [dep](https://github.com/golang/dep). Setting it up is outside the scope of this README, but if you want to contribute and aren't familiar with `dep`, I'm happy to get you.
```

**NOTE 1:** arlo.netgear.com requires TLS 1.2 for their API. So, if you're getting ssl errors, it's most likely related to your version of openssl. You may need to upgrade your openssl library.
If you're running this library on OSX or macOS, they ship with `openssl v0.9.x` which does not support TLS 1.2. You should follow the instructions found [here](https://comeroutewithme.com/2016/03/13/python-osx-openssl-issue/) to upgrade your openssl library.

After installing all of the required libraries, you can import and use this library like so:

```golang
package main

import (
	"fmt"
	"log"
	"sync"
	"time"

	"github.com/jeffreydwalter/arlo-go"
)

const (
	USERNAME = "user@example.com"
	PASSWORD = "supersecretpassword"
)

func main() {

	// Instantiating the Arlo object automatically calls Login(), which returns an oAuth token that gets cached.
	// Subsequent successful calls to login will update the oAuth token.
	arlo, err := arlo.Login(USERNAME, PASSWORD)
	if err != nil {
		log.Printf("Failed to login: %s\n", err)
		return
	}
	// At this point you're logged into Arlo.

	now := time.Now()
	start := now.Add(-7 * 24 * time.Hour)

	// Get all of the recordings for a date range.
	library, err := arlo.GetLibrary(start, now)
	if err != nil {
		log.Println(err)
		return
	}

	// We need to wait for all of the recordings to download.
	var wg sync.WaitGroup

	for _, recording := range *library {

		// Let the wait group know about the go routine that we're about to run.
		wg.Add(1)

		// The go func() here makes this script download the files concurrently.
		// If you want to download them serially for some reason, just remove the go func() call.
		go func() {
			fileToWrite, err := os.Create(fmt.Sprintf("downloads/%s_%s.mp4", time.Unix(0, recording.UtcCreatedDate*int64(time.Millisecond)).Format(("2006-01-02_15.04.05")), recording.UniqueId))
            defer fileToWrite.Close()

            if err != nil {
                log.Fatal(err)
            }

			// The videos produced by Arlo are pretty small, even in their longest, best quality settings.
			// DownloadFile() efficiently streams the file from the http.Response.Body directly to a file.
			if err := arlo.DownloadFile(recording.PresignedContentUrl, fileToWrite); err != nil {
				log.Println(err)
			} else {
				log.Printf("Downloaded video %s from %s", recording.CreatedDate, recording.PresignedContentUrl)
			}

			// Mark this go routine as done in the wait group.
			wg.Done()
		}()
	}

	// Wait here until all of the go routines are done.
	wg.Wait()

	// Delete all of the videos you just downloaded from the Arlo library.
	// Notice that you can pass the "library" object we got back from the GetLibrary() call.
	if err := arlo.BatchDeleteRecordings(library); err != nil {
		log.Println(err)
		return
	}

	// If we made it here without an exception, then the videos were successfully deleted.
	log.Println("Batch deletion of videos completed successfully.")
}
```

** (coming soon) For more code examples check out the [wiki](https://github.com/jeffreydwalter/arlo-go/wiki)**