<s>
In	O
computing	O
,	O
Hoodie	B-Application
is	O
an	O
open-source	B-Application
JavaScript	B-Language
package	O
,	O
that	O
enables	O
offline-first	O
,	O
front-end	O
web	O
development	O
by	O
providing	O
a	O
complete	O
backend	O
infrastructure	O
.	O
</s>
<s>
It	O
aims	O
to	O
allow	O
developers	O
to	O
rapidly	O
develop	O
web	O
applications	O
using	O
only	O
front-end	O
code	O
by	O
providing	O
a	O
backend	O
based	O
on	O
Node.js	B-Language
and	O
Apache	B-Application
CouchDB	I-Application
.	O
</s>
<s>
It	O
runs	O
on	O
many	O
Unix-like	B-Operating_System
systems	I-Operating_System
as	O
well	O
as	O
on	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
Hoodie	B-Application
is	O
produced	O
by	O
the	O
Hoodie	B-Application
Open	O
Source	O
Project	O
,	O
founded	O
by	O
Jan	O
Lehnardt	O
and	O
Gregor	O
Martynus	O
in	O
2011	O
and	O
first	O
released	O
in	O
2013	O
.	O
</s>
<s>
Hoodie	B-Application
is	O
designed	O
to	O
abstract	O
away	O
the	O
configuration	O
and	O
communication	O
between	O
the	O
database	O
backend	O
and	O
allow	O
web-based	O
front	O
end	O
development	O
using	O
simple	O
calls	O
to	O
the	O
Hoodie	B-Application
API	B-General_Concept
.	O
</s>
<s>
Hoodie	B-Application
uses	O
CouchDB	B-Application
to	O
store	O
data	O
for	O
the	O
application	O
.	O
</s>
<s>
If	O
the	O
application	O
is	O
offline	O
and	O
cannot	O
access	O
the	O
CouchDB	B-Application
database	O
,	O
data	O
is	O
stored	O
locally	O
on	O
the	O
device	O
in	O
the	O
offline	O
PouchDB	O
database	O
.	O
</s>
<s>
The	O
data	O
will	O
later	O
be	O
synced	O
to	O
CouchDB	B-Application
when	O
the	O
connection	O
to	O
the	O
server	O
is	O
re-established	O
,	O
using	O
CouchDB	B-Application
's	O
database	O
synchronisation	O
feature	O
.	O
</s>
<s>
Hoodie	B-Application
depends	O
on	O
Node.js	B-Language
and	O
Node	B-Language
Package	I-Language
Manager	I-Language
(	O
npm	B-Language
)	O
to	O
allow	O
it	O
to	O
be	O
used	O
from	O
the	O
command	O
line	O
and	O
to	O
provide	O
other	O
tools	O
for	O
Hoodie	B-Application
projects	O
.	O
</s>
<s>
When	O
Hoodie	B-Application
and	O
its	O
dependencies	O
are	O
installed	O
,	O
a	O
skeleton	O
project	O
directory	O
and	O
basic	O
files	O
to	O
start	O
an	O
application	O
including	O
index.html	O
and	O
main.js	O
are	O
created	O
.	O
</s>
<s>
Hoodie	B-Application
can	O
also	O
be	O
used	O
with	O
large	O
web	O
application	O
frameworks	O
including	O
Backbone.js	B-Language
,	O
Ember.js	B-Language
,	O
and	O
AngularJS	B-Application
.	O
</s>
<s>
The	O
core	O
Hoodie	B-Application
package	O
is	O
targeted	O
at	O
creating	O
personal	O
applications	O
and	O
saving	O
user	O
data	O
to	O
personal	O
storage	O
areas	O
.	O
</s>
<s>
Hoodie	B-Application
extensions	O
provide	O
functions	O
beyond	O
the	O
core	O
backend	O
commands	O
.	O
</s>
<s>
Extensions	O
can	O
be	O
written	O
by	O
anyone	O
and	O
use	O
the	O
npm	B-Language
package	O
system	O
.	O
</s>
<s>
The	O
core	O
structure	O
of	O
Hoodie	B-Application
is	O
to	O
provide	O
a	O
JavaScript	B-Language
package	O
that	O
provides	O
API	B-General_Concept
calls	O
to	O
store	O
data	O
on	O
CouchDB	B-Application
or	O
offline	O
on	O
PouchDB	O
.	O
</s>
<s>
The	O
hoodie.store.add	O
function	O
adds	O
an	O
object	O
to	O
a	O
personal	O
database	O
store	O
.	O
</s>
<s>
The	O
type	O
parameter	O
is	O
where	O
the	O
object	O
will	O
be	O
stored	O
in	O
CouchDB	B-Application
.	O
</s>
<s>
CounchDB	O
is	O
a	O
noSQL	B-General_Concept
database	O
and	O
as	O
such	O
does	O
not	O
have	O
tables	O
but	O
the	O
'	O
type	O
 '	O
identifier	O
is	O
similar	O
to	O
adding	O
to	O
a	O
particular	O
table	O
in	O
a	O
database	O
.	O
</s>
<s>
The	O
example	O
above	O
shows	O
how	O
a	O
todo	O
item	O
could	O
be	O
added	O
to	O
the	O
Hoodie	B-Application
store	O
.	O
</s>
<s>
Hoodie	B-Application
is	O
open	O
source	O
and	O
encourages	O
community	O
involvement	O
.	O
</s>
<s>
Hoodie	B-Application
community	O
aims	O
to	O
involve	O
both	O
coders	O
and	O
non-coders	O
in	O
helping	O
the	O
project	O
.	O
</s>
<s>
As	O
the	O
Hoodie	B-Application
package	O
is	O
aimed	O
at	O
beginners	O
and	O
users	O
unfamiliar	O
with	O
full	O
stack	O
software	O
development	O
,	O
the	O
community	O
encourages	O
all	O
levels	O
of	O
technical	O
and	O
non-technical	O
users	O
to	O
get	O
involved	O
.	O
</s>
<s>
Designed	O
for	O
offline	O
first	O
,	O
no-backend	O
,	O
NoSQL	B-General_Concept
web	O
development	O
.	O
</s>
<s>
Hoodie	B-Application
is	O
open	O
source	O
and	O
encourages	O
community	O
involvement	O
.	O
</s>
<s>
Built	O
to	O
be	O
cross-platform	B-Operating_System
,	O
Hoodie	B-Application
works	O
on	O
all	O
major	O
Linux	B-Application
distributions	I-Application
,	O
as	O
well	O
as	O
on	O
other	O
Unix-like	B-Operating_System
systems	I-Operating_System
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
and	O
Microsoft	B-Application
Windows	I-Application
support	O
.	O
</s>
<s>
Hoodie	B-Application
is	O
used	O
commercially	O
by	O
the	O
hosting	O
site	O
which	O
uses	O
hoodie	B-Application
to	O
provide	O
a	O
Back	O
end	O
as	O
a	O
Service	O
(	O
BaaS	B-Application
)	O
,	O
web	O
application	O
and	O
development	O
house	O
.	O
</s>
<s>
A	O
showcase	O
of	O
applications	O
using	O
Hoodie	B-Application
is	O
provided	O
on	O
the	O
.	O
</s>
