►
Description
In this installment of Filecoin's Second Master Class series, Samuele Agostinelli, front-end Web3 developer at Fleek, walks you through how to how to build decentralized apps using Space Daemon.
Keep up with events for the Filecoin community by heading over to the Filecoin project on GitHub:
https://github.com/filecoin-project
Check out the Filecoin community resources:
https://github.com/filecoin-project/community
And stay connected on Filecoin Slack:
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Want to dive deeper into Fleek? Check out technical docs site:
https://docs.fleek.co/
Join Fleek's community slack:
https://fleek-public.slack.com/join/shared_invite/zt-bxna7y1d-PbVdut4rgHt5jM6Zjg9g9A#/
And get in touch by email:
support@fleek.co
A
A
A
All
right:
well,
I'm
going
to
kick
us
off
as
people
join
a
very
big
thank
you
to
everyone
for
dialing
in
for
this
and
for
watching
on
the
youtube,
live
stream
and
the
twitter
live
stream.
We
are
so
happy
that
you're
here
we're
happy
that
you're
joining
us
with
for
this
master
class
series.
This
is
number
two
in
the
series
and
we
are
so
lucky
to
have
the
team
over
at
fleek
joining
us
on
the
for
this
second
session.
A
The
idea
behind
these
sessions
is
really
to
help.
You
jump
start
your
projects,
the
tools
and
apps
that
you're
building
on
the
file
coin
network
as
we
gear
up
for
main
net
launch.
We
want
this
really
robust
amazing
ecosystem
of
tools
and
ideas
and
services
on
the
network
to
build
a
healthy
network.
So,
thanks
for
being
here
thanks
for
learning
with
us
today,
we
are
really
lucky
to
have
samuel
agus
nilly
from
the
filecoin
team.
A
Here
he's
a
from
the
fleek
team
here,
he's
a
front-end
developer
with
fleeq
and
he's
going
to
show
us
how
to
use
space
daemon
to
build
decentralized
apps.
Now,
for
a
long
time,
fleek
has
been
this
amazing
platform
for
building
fast
and
modern
sites
and
apps
on
ipfs
and
now,
with
space
steam
and
integration.
You
can
build
on
filecoin,
so
feel
free
to
ask
questions
in
the
chat
in
real
time.
B
Welcome
to
the
space
master
class,
so
in
this
master
class
we're
going
to
learn
how
to
get
started
using
the
space
daemon
and
I'm
going
to
intro,
it's
going
to
be
a
complete
introduction
to
space
from
just
what
it
is
up
to
more
technical
details.
So
here
on
the
the
agenda,
we're
gonna
start
with
the
slides.
It's
gonna
be
the
first
part.
It's
gonna,
be
we're.
Gonna,
explain
like
what
is
the
specimen,
why
we
created
it
and
it
by
the
end
of
this
slide,
you're
gonna
have
a
better
idea.
B
B
We're
gonna
learn
how
to
set
up
the
daemon,
how
to
interact
with
it
using
our
space,
client
and
then
the
third
part.
This
is
completely
new
that
we
added
recently
it's
a
trial
coin
integration.
So
I'm
going
to
introduce
you
to
a
file
coin
using
the
space
schema.
So
it's
going
to
be
pretty
interesting.
B
B
And
thirdly,
the
hackers
actors
accessing
centralized
data
sources.
Here
on
the
image
we
see
a
camera
making
fun
of
the
twitter,
because
recently
twitter
had
a
big
big
hack,
where
very
big
names,
like
barack
obama,
I
think
by
then
kanye
west
and
a
lot
of
celebrities
got
hacked
and
it
was
really
like
a
big
deal
and
it
really
highlighted
that
there
is
a
problem
with
user
data
and
that
one
tr
and
decentralized
data
sources
they
are
easily
taken
advantage
of.
B
So
that's
the
problem,
and
now
the
solution
is
space.
Why
that's
why
we
created
it
now?
The
value
proposition
to
users
is
that
we
bring
privacy
through
encryption
and
data
ornish
ownership,
which
means
that
altered
data
is
going
to
be
encrypted
and
they're
going
to
be
the
owner
of
the
keys
to
decrypt
this
data,
and
so
all
these
problems
that
we
mentioned
previously
are
solved
through
that
and,
finally,
since
the
ship
resistance
to
peer-to-peer
technologies
such
as
ipfs
and
falcon
so,
space
uses
ipfs,
very
heavily
and
also
file.
Coin.
B
B
B
I
want
to
touch
upon
really
quick,
the
difference
between
the
space
daemon
and
the
space
app,
because
recently,
like
a
few
weeks
ago,
we
made
an
announcement
on
our
twitter
and
through
a
blog
post,
that
at
fleek
we're
working
on
a
new
space
application,
and
so
I
just
want
to
make
sure
that
we
understand
the
difference
between
the
two
and
how
it
sets.
So.
B
So
it's
what
powers
the
space
app
and
what
is
really
cool
about
the
space
demand
is
that
we
open
source
it,
which
means
that
anyone
can
build
an
app
like
the
in,
like
the
space
app
or
like
or
different,
and
you
can
profit
from
the
the
same
functionality
and
the
space
app
can
then
serve
as
a
good
example
of
the
kind
of
stuff
that
you
can
build,
because
it's
going
to
be
a
enterprise
style.
App
commercial
app!
B
B
B
Now.
Why
that's
very
interesting
because
since
the
space
daemon
encrypts
data,
it
can
be
used
to
encrypt
data
before
it
gets
uploaded
to
file
point.
That's
a
really
big
use
case,
because
when
you
up,
when
you
use
file
coin,
you
always
need
to
encrypt
before
you,
you
upload
or
else
anyone
can
look
at
your
other
data
like
the
stuff
that
you
upload
on
filecoin
is
not
private.
The
miner
that
is
going
to
hold
your
file.
You
can
open
the
file
and
look
into
it.
B
So
it's
an
important
aspect
of
uploading
to
file
point
and
I
want
to
say
it's
newly
implemented.
So
there's
going
to
be
some
bugs
and
stuff
like
that,
but
I'm
going
to
explain
it
when,
when
we
go
over
that
now
the
file
coin,
I'm
gonna
show
you
a
bit
of
stack
the
stuff
that
is
inside
the
daemon
and
the
stuff
that
on
the
future,
we
will
integrate
in
the
demon.
So
here
on
the
bottom
left,
we
got
the
file
coin.
B
B
So
it's
gonna
come
a
bundle
in
the
future,
with
a
ceramic
node
and
handshake
resolver
and
a
lightweight
ethereum
node,
so
that
you
can
do
some
interesting
functionality
between
ethereum
and
file
point
and
and
of
course,
privacy,
encryption
and,
of
course,
new
protocols
so
like
it
is
open
source
and
where,
as
flick,
open
to
suggestion.
So
if
there
is
a
protocol
that
you
want
a
feature
that
you
that
you
want
for
your
app,
you
can
reach
out
to
us
and
maybe
we
will
implement
it.
B
That
will
be
a
very
useful
I'd
say
now.
This
is
the
stuff
that
comes
inside
the
space
daemon.
On
top
of
that,
it's
the
apps
that
you
can
build
on
top
of
the
daemon
so
like
the
first
first
example
of
an
app
that
you
can
build
is
going
to
be
this.
The
the
space
app
the
which
is
for
storage,
but
there
is
a
2
3,
4
five,
so
you
can.
You
can
make
your
own
applications
and
you
can.
B
So
it's
just
an
idea
that
you
could
do
or
brand
new
ideas
because
of
course,
in
web
3
there's
a
lot
of
innovation
like
with
defy
and
stuff
like
that,
so
just
quickly.
Some
resources
that
you
can
you
can
go.
I
will
like
them
as
we
go
in
the
presentation,
but
tell
the
space
demon
documentation
on
docs.flick.com
that,
where
we
document
all
the
methods
that
you
can
use
on
the
daemon
and
there's
also
a
getting
started
section
so
that
you
can
get
started
quickly.
B
Finally,
it
is
also
a
github
repo,
I'm
going
to
show
make
give
you
a
tour
of
the
trip
afterwards,
because
it's
some
important
repositories,
there's
a
space
demon
workshop.
That's
pretty
important
because
in
this
presentation
I'm
going
to
walk
you
through
the
workshop,
because
it
shows
you
how
to
use
a
lot
of
the
methods
how
to
upload
files
share
and
iso.
B
Last
week
I
put
in
the
example
of
uploading
a
file
to
filecoin
using
the
powergate
implementation.
And
finally,
you
also
want
to
just
say
that
we
have
a
youtube
channel.
You
can
just
search
apfs
leak
on
youtube.
It
will
pop
up
well
all
kinds
of
videos
on
the
daemon
and
also
the
on
hosting
and
the
storage
and
stuff
like
that.
B
A
B
I
know
that
in
the
first
we
had
a
very
good
entry
that
was
called
the
shutter
fs,
which
is
like
a
marketplace
of
of
files,
and
the
idea
was
that
it
would
encrypt
the
files
and
then
these
encrypted
files
would
then
be
sold
and
and
bought.
So
we
have
a
blog
post
and
on
our
on
the
blog
dot
co
that
details
that.
B
B
B
B
B
Doesn't
need
to
be
installed,
it's
just
an
executable
file.
So,
like
me,
I'm
on
linux
and
what
I
would
do
is
go
on
space
linux
and
I
have
64-bit.
So
I
would
download
this
executable
and
then
I
can
change
the
permission
to
to
make
it
an
executable,
and
I
can
just
start
it
like
that
and
the
demon
is
going
to
start
in
the
background
and
that's
how
you
you
start
with
the
daemon.
You
can
also
provide
a
bunch
of
flags,
for
example,
for
the
file
coin.
B
Stuff
you're
gonna
need
to
provide
a
flag
which
I'll
show
you
afterwards
but
depending
on
your
platform.
So
if
it's
linux,
you
know
you
can
get
this
one
22-bit
64-bit
on
on
mac,
it's
darwin
and
on
windows.
It's
this
one
and
you
might
be
wondering
what
about
like.
If
I
want
to
make
an
an
app
for
the
phone
or
an
android
on
iphone,
something
like
that
so
right
now,
the
daemon
is
only
a
desktop
application.
B
So
you're
gonna
need
to
do
it
on
this
step,
but
we
are
working
on
the
a
live
version
of
the
daemon
that
could
be
used
for
like
phone
phone
applications.
So
tell
that,
and
also
another
thing
that
we
got
in
the
works
if
you
do
not
want
to
have
it
run
like
that
on
your
computer,
we're
gonna
have
a
service
in
the
future.
This
is
like
a
a
hosted
version
of
of
the
of
the
daemon,
which
is
very
similar
to
like
on
textiles.
B
B
B
And
I
want
to
show
you
the
last
repo.
Is
this
one?
So
this
is
the
repo
that
I'm
gonna
show
you
right
now,
so
it
contains
an
example
of
how
to
add
a
file
create
a
bucket
share,
a
bucket
which
is
the
your
your
encrypted
data,
and
it
contains
the
file
code
integration.
So
if
you
want
to
follow
along
or
a
play
with
it,
it's
a
good
example,
a
good
resource
you
can
clone
that
repo,
but.
B
B
B
I
got
my
console
and
then
here
I
cloned
the
the
space
daemon
repo
so,
like
I
said
previously
to
run
the
daemon,
you
only
need
to
download
the
executable
in
the
releases
so
steps.
I'm
gonna
show
you
right
now,
it's
just
temporarily
and
it's
just
because
of
the
because
we
need
to
run
it
from
source
for
one
and
second,
we
need
to
do
the
setup
for
the
file
coin,
but
it's
only
like
temporary.
So
keep
that
in
mind.
B
So
what
you're
going
to
do
is
do
make
when
you're
going
to
do
make
it's
going
to
build
it's
going
to
build
the
the
the
binary.
So
if
I
go
in
space
beta,
I
already
did
that
previously.
Of
course,
I
do
ls
here.
I
got
this
space
executable.
This
executable
is
the
same
thing
that
you
would
have
gotten
if
you
were
just
downloading
the
release
and
if
I
were
to
run
that
it's
going
to
run
the
daemon.
B
But
of
course,
before
that
I
want
to
start
filecoin,
so
what
I'm
going
to
do
is
make
localnet
up.
That
is
going
to
start
an
instance
of
the
powergate
running
on
localnet.
Now
I
want
to
just
specify
that
very
soon
like
the
next,
like
update,
we're
gonna
make
is
gonna.
There's
gonna
be
a
flag
that
we
can
give
to
the
demon
to
just
get
your
firecoin
powergate
client
started
automatically.
So
like
this
step
is
just
for
the
example,
I
would
say
also
localnet.
I
need
to
explain
that
too.
B
So
it's
not
the
so
the
the
file
coin
in
it
is
all
is
not
real
and
it
it.
It
does
not
have
the
same
block
time
or
anything
like
that.
It's
only
made
for
developers
and
testing
and
stuff
like
that,
and
if
you
you
ever
did
the
development
on
ethereum
it
looks
a
lot
like
like
ganache,
like
ganache,
allows
you
to
have
a
local
instance
of
a
an
ethereum
network.
I
guess
so.
B
Now
I
need
to
get
my
demon
started
so
the
make
I
already
did
that
I'm
going
to
remove
it
so
from
the
root
folder,
I'm
going
to
go
in
bin
space
to
start
the
executable
I'm
going
to
give
the
file
coin
flag,
so
that
is
what,
in
the
near
future,
is
going
to
automatically
start
the
file
coin
instance,
and
we
also
have
falcon
no
ipfs
node
equals
false.
That's
because-
and
I
think
I
mentioned
that
previously
really
fast-
that
the
powergates
instance
is
a
bundle
of
pfs
node
and
a
lotus
node.
B
Therefore
we
remove
we
remove
the
ipfs
node
that
comes
by
default
on
the
space
demand
so
that
we
can
use
the
one
that
is
on
the
power
gate.
That
is
the
reason
why
we
do
that,
so
I'm
going
to
do
enter
now.
It's
going
to
get
started
and
very
soon
it
should
show
daemon
ready
when
it
says
daemon
ready.
Then
that's
when
we
can
start
interacting
with
it,
like
it's,
not
ready
right
now,
but
like
in
a
few
seconds
yeah
here.
B
B
B
B
B
B
B
B
So
first
I
get
started
at
point
one.
We
we
say
that
we're
gonna
create
a
new
bucket,
so
in
the
space
daemon,
all
the
data
goes
inside
the
bucket
and
you
can
have
multiple
buckets,
but
this
bucket
it's
a
bit
like
in
like
aws
s3,
so
you
create
your
bucket
and
you
fail
to
bucket
with
a
bunch
of
of
content.
B
So
here
is
where
you
you
create
this
initial
bucket
that
you
can
fill
with
stuff
and
the
future
function
are
all
gonna
need
the
bucket
name,
because
we're
gonna
specify
that
okay,
it's
in
this
bucket,
that
I
want
to
perform
this
action.
So
the
name
is
like
important,
so
I'm
going
to
call
it
like
a
target,
maybe
or
or
class.
B
So
it's
going
to
be
a
bucket
called
class
when
I
create
create
blackhead
click
back
yet
so
it
says,
submit
created
bucket
and
you
return
a
bunch
of
data,
so
it
said
created
at
the
timestamp,
the
key,
the
name
of
the
bucket,
which
is
really
important
for
future
methods,
the
path
and
etc.
So
that's
the
return,
the
return
data
from
the
space
daemon.
So
I'm
going
to
show
you
in
the
code
that
so.
A
B
I
would
I
would,
I
would
need
to
know
some
more
information,
but
if
you
start
everything
exactly
like
this,
it
should
work,
I
would
say,
but
there
is
something
that
you
can
do
so,
maybe
if
you,
if
you
previously
interacted
with
the
daemon,
sometimes
it
can
be
some
errors
like
that
that
can
pop
what
you
can
do
is
here
on
your
home,
oops
home.
There
is
a
a
dot
flick
space
folder.
B
B
And
it
contains
a
bunch
of
stuff
so
related
to
the
demon.
So
if,
if
if
this
gets
corrupted
it
it
could
cause
error.
So
what
you
can
do
is
like
rm,
I'm
not
gonna.
Do
it,
because
I
break
everything,
but
you
could
delete
that
and
it
might,
it
might
fix
the
issue,
hopefully
hopefully,
that
that's
the
error,
oh
yeah,
and
also
yes,
I
I
think
I
know
why
you're
saying
that
also
I'm
going
to
go
back
to
the
gift.
B
B
B
So
I
I
would
say
that
not
really
it's
nothing.
I
would
say
that
santiago.
If
you
want
to
try
the
speed
demand,
you
can
try
it
other
you
you,
you
add
the
variables
or
you
can
you
use
the
release
and
not
use
the
file
phone
part.
So,
okay,
so
I'm
gonna
go
back
to
the
code
here
create
bucket,
so
just
to
reiterate
what
we
just
did
we're
at
number
one.
B
It's
here
create
bucket,
so
so
here
that's
the
button
that
we
click
there's
in
unsubmit
here.
So
what
we
did?
We
imported
the
client,
because
I
actually
do
previously.
I
created
an
instance
of
the
client
that
I
looked
at
port
9998
and
which
is
our
running
instance
of
the
daemon
and
with
a
try
catch.
We
we
call
it
an
async
function
which
is
create
bucket
and
we
provide
to
it
the
name
of
the
bucket
here
and
then
here
there's
a
response,
a
response
object.
B
B
B
So
it's
a
way
to
like
organize
your
stuff
or
if
you
develop
an
app,
you
might
want
to
expose
this
file
system
architecture.
But
the
idea
is
very
simple:
it's
just
like
a
unix
file
system.
You
can
just
see
the
name
of
the
back
yet
and
provide
them
the
path
in
which
the
file
is
located
located
at
so
in
this
case,
I'm
gonna
start
interacting
with
this
file
system
by
creating
a
folder.
B
B
Here
it
is
this
directory
so
now
to
create
a
folder.
Maybe
you
want
to
look
at
the
folder?
Is
it
really
created,
so
this
directory
is
going
to
list
the
content
of
a
directory
and
the
root
the
root
of
the
bucket?
The
the
slash
is
like
the
root
the
root
directory.
So
in
bucket
I'm
going
to
write
the
name
of
the
bucket
class
and
then
slash
so
want
to
see
in
in
slash
what
is
the
contents
this
directory?
B
I
want
to
show
you
also
what
is
inside
of
my
folder
just
really
quick,
so
you
would
expect
it
it's
empty,
but
it's
not
empty.
There's
a
file
inside
called
dot.
Keep
that
adjusted
like
an
invisible
file
that
is
created
by
the
daemon
to
to
show
that
it's
that
there
is
a
it
is
a
folder,
it's
a
quirk
of
how
it
works
with
the
buckets
I'm
going
to
show
the
code,
that's
really
fast,
but
it's
pretty
simple.
B
B
Next,
we
want
to
open
a
upload,
a
file.
So,
of
course,
now
we
want
to
show
we
want
to
put
stuff
inside
the
butt
yet
where
it's
going
to
be
encrypted,
so
first
in
the
right
class.
This
is
the
fifth
field.
Here
is
the
path
of
the
file
in
my
system
so
beforehand
I
prepared
a
file
that
is
very
small
that
we
can
upload.
B
B
B
Upload
files,
so
here
it
has
client
that
add
items
we
patent
the
bucket
the
target
path
and
the
source
pass,
and
you
might
wonder
why
is
there
an
array
here?
That's
because
in
one
by
calling
at
items
you
can
add
multiple
items
with
one
method
call.
So
that's
why
it's
an
array
in
this
case
we
do
only
one
so
that
array
is
going
to
have
only
one
element
and
the
function
returns,
a
a
stream.
B
B
B
B
B
All
right,
I'm
going
to
go,
do
the
sharing
right
now
to
because
of
time
so
share
bucket,
so
we
have
sharing
capabilities
in
the
space
daemon,
for
example.
In
this
case,
I
can
share
my
bucket
with
someone
else
and
when
that
person
is
going
to
do
a
list
of
all
the
buckets
it's
going
to
stat
bucket
and
you
will
be
able
to
get
the
files
from
it,
so
I'm
going
to
show
you
how
it
works
really
fast.
B
It
returns
a
bunch
of
information.
We
were
key
bucket,
the
name
of
the
bucket
and
addresses.
So
if
I
want
to
share
this
bucket
with
someone
else,
I
can
take
this
data
here
and
send
it
to
an
and
this
other
person
and
that
person
will
tend
to
join
bucket.
This
person
will
copy
the
name
of
the
bucket
class
we'll
copy
the
key
like
this.
Here,
it's
gonna,
it's
gonna
copy.
The
addresses.
B
And
then
the
person
is
gonna
do
john
bucket.
Now
I'm
not
gonna.
Do
it
because
I'm
not
sure
what
happened.
If
I
join
my
own
bucket,
I
don't
know
if
it
breaks
the
demand
or
what
so,
I'm
not
gonna
do
it,
but
that's
how
a
person
can
join
a
bucket
and
now
that
person
has
access
to
the
files
and
everything
in
the
future.
We're
gonna
have
some
access
control.
B
I
just
want
to
show
that
this
share
bucket
is
a
very
low
level
method.
We
also
provide
optimal
so
that
might
be
more
convenient.
For
example,
you
can
share
via
email.
You
can
create
a
file
link.
You
can
share
via
identity
because
we
also
come
with
an
identity
system.
So,
for
example,
with
your
public
key,
you
could
assign
a
username
and
email.
B
B
B
B
B
B
So
that's
because
on
file
coin,
it
takes
a
long
time
before
the
the
the
act
of
uploading
to
file
coin
takes
place,
and
that's
why
we
are
tracking
that
job.
Now
the
job
failed
after
a
while,
but
that
is
due
like
we
did
an
update
recently
and
I
think
it
broke
something.
But
previously,
when
I
tried
it,
it
worked.
It
showed
the
job
success.
B
B
So
let's
go
to
the
code
here
on
line
10,
I
am
calling
localhost
port
6005,
just
a
quick
disclaimer,
it's
port
6005
for
the
space
demon
instead
of
port
6002
for
the
power
gate.
So
like
the
power
gate
by
itself,
when
you
run
it,
it's
gonna
go
through
port
6002
by
default,
but
our
version
on
the
space
demon
is
on
port
6005,
and
here
we
do
create
power
that
creates
an
instance
of
the
of
the
target
client.
That's
going
to
allow
us
to
talk
with
the
client.
A
B
Yeah
we
have
well
not
on
this
release,
but
I
note
that
on
our
dev
release
that
I
don't
know
what
is
going
to
be
released
test
that
as
stuff
that
you
can
share
files
instead
of
the
whole
bucket,
because
right
now,
as
you
can,
you
can
see
it
is
like
share
bucket.
So
you
so
if
you
have
a
cat
with
a
bunch
of
stuff,
it
shares
everything,
but
we
also
have
stuff.
So
we
can
share
only
one
file.
A
I'm
going
to
post
some
just
some
links
in
the
chat
for
how
to
keep
in
touch
with
us
and
with
samuel
after
this
event,
so
you
know,
and
also
please
throw
into
the
chat.
If
you
have
any
future
session
ideas
things,
you
want
to
learn
how
to
do
and
build
on
the
file
coin
network,
throw
those
in
the
chat,
because
that
we
will
take
your
suggestions
seriously.
B
We
create
a
token
which
is
like
the
session.
The
the
token
that
identifies
our
instance,
so
t
is
something
that
you
do
only
once
normally,
so
you
don't
have
to
wait
a
bunch
of
time
here.
I
just
can't
show
caves
that
there
is
some
wallet
management
included
in
the
the
paragate
client,
so
you
can
create
a
new
alert
and
you
can
ask
the
balance
how
much
there
is
a
file
point
I
want
to
see
in
the
local
net.
B
You
do
not
need
filecoin
to
upload
a
file,
that's
really
important
and
that's
only
because
of
local
net.
So
it's
for
development.
It's
not
meant
to
like
to
be
a
real
fico
network.
So
that's
why
I
have
zero
balance
of
file
coin
in
my
wallet,
but
I
was
still
able
to
make
a
deal
with
the
virtual
miners.
So
that's
just
an
important
thing
to
mention
here.
You
can
set
the
configuration
of
your
paragraph
instance,
so
I
want
to
mention
here.
This
configuration
has
hot
and
cold.
B
So
this
is
because,
like
I
said
previously,
power
gate
is
an
ipfs
node,
combined
with
a
file
coin
node.
Now
the
idea
behind
that
is
that
the
ipfs
node
is
what
is
going
to
be
used
to
like
send
file
like
almost
like
a
cdn,
and
the
code
is
like
cold
storage,
which
is
where
which
is
file
coin.
Basically,
the
idea
is
you
download
your
file
from
filecoin
and
through
the
ipfs
node?
You
can
then
send
it
around
here
like
in
t1.
B
We
are
caching
the
data
in
the
ipfs
node
by
running
stage,
and
it
returns
a
cid
that
is
a
necessary
step
before
it
can
be
uploaded
to
file
coin,
and
this
stores
it
to
the
ipfs
node
here
is
where
we
are
actually
pushing
to
filecoin
and
it's
returning
a
job
id
that
we
are
tracking
over
here.
So
whatever
it
is,
cancel
or
fail,
or.
B
Success
and
here
we
get
the
file
using
the
cid,
so
the
thing
I
want
to
just
explain
about
that
is
that
powergate,
when
you
ask
it
a
file,
it
first
starts
by
looking
at
the
the
ipfs
node.
If
it
is
on
the
ffs
node,
it
downloads
the
file
from
the
ipfs
node.
If
it's
not
in
the
ipfs
node,
it's
going
to
look
as
the
falcon
network.
That
is
why
here
it
was
able
to
return
the
bikes,
the
the
the
file
itself
before
it.
B
So
I
think
time
is
up,
so
I'm
gonna
stop
it
right
there.
So
I
want
first
of
all
to
take
everybody
to
a
bitter
fortis
master
class.
I
hope
it
was
useful
to
you
and
that
it
gives
you
some
ideas
about
how
you
can
use
the
space
demon,
and
I
also
want
to
thank
everyone
at
the
protocol
labs
for
organizing
this
event.
I
know
it
was
a
lot
of
work,
so
I
want
to
say
thank
you
to
that.
A
Thank
you
samuel.
This
was
really
helpful
and
interesting
and
truly
thanks
to
everyone
for
joining
us.
We
would
love
to
hear
more,
as
I
said,
about
what
you
want
to
learn
to
build.
So
if
you
hop
into
the
file
coin
slack,
you
can
find
me
there
rachel,
horn
and
we'll
get
that
we'll
keep
these
master
classes
going
thanks
again,.