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https://github.com/assemblycapital/vita


https://github.com/assemblycapital/vita

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README 

        
# 🛸 vita



keep track of your app distributions



to get downloads, `:vita` periodically scrys %cs /subs for each desk and caches the results.



`:vita` accepts foreign pokes attesting to activity on a desk.

`/lib/vita-client.hoon` helps any agent send vita activity pokes.

it sends a maximum of one poke per day, and allows users to opt-in / opt-out depending on developer preference.



## vita downloads



on-init, vita will fetch 'downloader' metrics on all of your published desks and print them out to dojo.



```

vita: our %basket has 20 subs

vita: our %noodle has 12 subs

vita: our %houston has 133 subs

vita: our %radio has 326 subs

```



this tells you how many active urbit ships are signed up for OTAs for each desk.



you can run this routine whenever you want with `:vita|g`



`:vita` automatically checks `:treaty` for published desks.



to register a different desk (e.g. %kids), do `:vita|g %kids`



```

vita: our %kids has 0 subs

> :vita|g %kids

>=

```



now, whenever `:vita` does its full routine, `%kids` will be included.



```

vita: our %kids has 0 subs

vita: our %basket has 20 subs

vita: our %noodle has 12 subs

vita: our %houston has 133 subs

vita: our %radio has 326 subs

> :vita|g

>=

```



to unregister a desk: `:vita|d %kids`. WARNING: all data collected on an unregistered desk will be lost.



once every 24 hours, `:vita` grabs downloads metrics on each registered desk using `.^((set ship) %cs /=mydesk=/subs)`. every time this scry is performed, `:vita` logs the size of the set with a timestamp. `:vita` keeps one copy of the latest full set of downloaders, and a cumulative set of all unique downloaders.



when users unsync from your local desk, `latest.downloads` wont go down until your next `|commit` to the desk.

`cumulative.downloads` only goes up.



to see all cumulative sizes: `=t +vita!total`



```

vita: %basket has 24 cumulative downloads

vita: %noodle has 14 cumulative downloads

vita: %houston has 139 cumulative downloads

vita: %radio has 359 cumulative downloads

> =t +vita!total

```



over time, `:vita` accumulates a `history=(map time [size=@ud set=(unit (set ship))])` for each desk.



to change the interval for automatic collection: `:vita|i ~h8` will change it to 8 hours from the default 24



to turn off the interval: `:vita|i` (no arg)



to enable collection of the full set of downloaders per day (instead of just the size) `:vita|f &`



## vita activity



`:vita` is also capable of collecting daily-active-users.



vita accepts `vita-action+[%activity =desk]` pokes from any source. it logs daily active users by adding users to a `latest=(set ship)`.

this set is cleared once a day. vita keeps record of the max size of this set each day in `history.activity`



now you just need users to poke `:~your-planet/vita &vita-action [%activity %yourdesk]` every time they use your app.



`/lib/vita-client/hoon` has a wrapper agent which does just that.



to use it, copy over `/vita-client/*` into your app desk, then `/+  vita-client` and wrap your agent with



```hoon

%-  %-  agent:vita-client

    ::  data collection on/off by default

    :-  &

    ::  @p of your distributor ship

    ~sampel-palnet

...

```



you will also need to give the `(active:vita-client bowl)` card somewhere in your agent where real user activity can be detected (e.g. on-watch for a frontend subscription path). this card will induce `vita-client` to send activity upstream to the parent `vita`.



`vita-client` is initialized with a boolean (sets collection on/off by default), and the `@p` of your distributor ship (running vita, with the app registered).



users can turn `vita-client` data collection on/off with `:myagent +mydesk!enable-vita` or `:tenna +mydesk!disable-vita`.

this uses some generators packaged with vita-client. the actual poke is just `:myagent &vita-client [%set-enabled |]`



`vita-client` sends a max of one activity poke per-day.



## frontend



the vita frontend displays the data collected by `:vita` plus some forms for app creation and maintenance. the `:vita-deploy` agent supports app creation and maintenance.



# installation



## install from livenet distribution



`|install ~nodmyn-dosrux %vita`



## install from source



1. create a blank `%vita` desk.

2. copy in basic app dependencies.

3. `|mount %vita`

4. cd `/vita`

5. `./install.sh -w /vita`

6. `|commit %vita`

7. `|install our %vita`



## urbit.org grant



https://urbit.org/grants/app-metrics