►
From YouTube: Using Twilio to send WhatsApp Messages
Description
Twilio enables developers to add rich communication features to their applications via HTTP APIs that can be used with any programming language.
In this episode, Corey Weathers from Twilio returns to show us how we can use Twilio’s integration with the WhatsApp messaging platform in our .NET applications
[01:36] - Messaging on WhatsApp vs SMS
[03:04] - Exploring the Twilio Sandbox for WhatsApp
[06:10] - Messaging with the Twilio .NET SDK
[07:17] - Supporting other messaging channels
[08:48] - Responding to messages
Twilio Quest
https://www.twilio.com/quest
Twilio API for WhatsApp
https://www.twilio.com/docs/whatsapp/api
Programmable SMS Quickstart for C# with .NET Core
https://www.twilio.com/docs/sms/quickstart/csharp-dotnet-core
How to use Twilio for voice and SMS capabilities from Azure
https://docs.microsoft.com/en-us/azure/twilio-dotnet-how-to-use-for-voice-sms
#dotnet #aspnetcore #twilio
A
A
A
Now
I
know
for
me
a
lot
of
my
family.
You
know
my
family
lives
in
the
caribbean
and
I
have
folks
that
are
like
all
over
the
world,
and
so
one
of
the
things
that
we
use
a
lot
to
communicate
is
this
app
called
whatsapp,
and
you
know
some
of
you
folks
may
or
may
not
have
used
it
before,
but
it's
a
big
thing
that
we
use
for
like
sending
messages
and
photos,
and
you
know
my
families
tell
me
pdfs
and
things
like
that
over
there.
I
don't
know
why,
but
they
do
it.
B
Yeah,
it's
incredibly
easy,
and
so
I'm
so
excited
to
be
able
to
show
this
off
to
you
all
today.
You
know
at
twilio
we
care
about
connecting
the
world
with
code
right
and
so
being
able
to
send
an
sms
should
be
as
simple
as
being
able
to
also
send
a
message
over
whatsapp
and
thanks
to
the
twilio
sdks.
A
All
right
cool,
so
what's
the
difference,
if
we
talk
really
quickly
about
sending
a
message
with
whatsapp
versus
sending
something
with
sms
right,
because
they're
just
they're
just
messaging
things
right
but
like
are
the
protocols
different?
Is
there
a
different
level
of
security
like
what's?
What's
the.
B
Difference,
yeah
they're
completely
different
channels.
So,
if
you
think
about
sending
an
sms,
it's
traditional
text
message
that
you
would
get
on
your
phone.
That's
usually
taken
care
of
or
delivered
or
transported
by,
the
telecom
operators
versus.
If
you
send
a
message
over
whatsapp
there's
a
different
level
of
security.
On
that
message,
the
folks
behind
whatsapp
do
a
good
bit
to
make
sure
that
the
message
you
receive
is
not
spam.
There's
a
ton
more
protections
there
as
well,
and
so
they're
completely
different
channels,
even
though
they
seem
pretty
similar
from
a
code
perspective.
A
Right,
I
think
another
good
thing
too
is
whatsapp
is
free,
financially
speaking,
whatsapp
is
free,
and
so
from
a
business
perspective.
You
know
if
you
want
to
communicate
with
customers,
and
you
know
different
clients
and
things
like
that.
Like
that's
one
cost
that
I
don't
necessarily
have
to
worry
about
right,
it
makes
a
little
bit
easier
for
me
to
reach
out
and
just
engage
with
people
yeah.
B
That's
exactly
right,
and
so
one
of
the
things
that
I've
seen
as
I
talk
to
different
customers
around
the
world.
Is
they
love
that
we
have
support
for
whatsapp,
because
it
is
so
simple
to
be
able
to
use
the
twilio
api
to
message
their
different
customers
in
different
countries
just
based
on
the
destination
that
the
message
is
going
to
so.
A
Right
right
all
right,
so
why
don't
we
switch
over
to
your
desktop
and,
let's
see
how
we
can
plug
these
things
together?
Absolutely
all
right,
corey!
So
we're
taking
a
look
at
your
screen
now
and
I
see
like
there's
the
twilio
sandbox,
that's
open.
I
see
your
phone
that
you're
showing
here
in
reflector
and
the
toilet
request,
so
so
show
me
how
how
exactly
is
this
whatsapp
integration
working.
B
Yeah,
so,
in
order
to
get
started,
the
first
thing
we
have
to
do
is
send
a
message
so
that
we
can
join
a
sandbox
environment
and
that
sandbox
is
really
important,
because
that
sandbox
allows
you
to
be
able
to
send
messages
using
the
whatsapp
channel.
It
gives
you
a
developer
environment
that
you
can
use.
It
helps
to
make
sure
that
you're
not
sending
spam
things
of
this
regard.
A
B
Yeah,
that's
exactly
correct.
So
now
that
I've
sent
that
message,
I
was
able
to
join
the
sandbox
and
once
I
did
it,
the
twilio
whatsapp
sandbox
sent
me
a
message
back,
saying:
hey,
you're
all
set
up
and
now
programmatically.
We
can
send
messages
back
and
forth
over
the
next
24
hours
and
everything
would
work
totally
fine.
If
those
24
hours
expired,
then
we'd
have
to
get
added
to
the
sandbox
again
and
box
again
got.
A
It
so
the
sandbox
is
just
like
a
development
story
right
after
you
know,
you've
worked
through
your
app
and
you've
created
it,
and
it's
you
know
communicating
you
the
way
that
you
want
it
to
then
you'll
publish
it
somewhere
somehow
and
then
you
can
actually
create.
You
know:
interactions
between
real
whatsapp
users.
B
People
sending
out
appointment,
reminders
order,
notifications
or
even
you
know,
the
verification
codes
for
the
scenarios
of
like
two-factor
authentication
or
a
scenario
whereby
you
need
to
use
a
service
and
have
to
put
in
a
specific
code
in
order
to
continue
to
move
forward.
Yep
they've
got
these
templates
here,
but
then
you
can
also
do
two-way
messaging
right,
so
you
can
go
back
now
and
I
told
you
those
24
hours
are
now
there,
so
we
can
send
messages
back
and
forth.
B
I'm
going
to
send
this
message,
it's
just
going
to
be
a
test
message,
so
I'm
going
to
pull
my
phone
back
up
and
I'm
just
going
to
say
test
and
now
you'll
see
my
messages
come
in,
the
sandbox
has
picked
it
up
and
everything
is
working
just
as
smoothly
as
we
expected
to.
I
could
even
send
a
reply
back
just
directly
here
from
the
twilio
console,
but
instead
we're
going
to
do
this
from
c
sharp
code.
So
I'm
really
excited
to
hop
over
to
that
now.
A
Great,
I
think
what
I'm
really
excited
about
for
this
is.
This
is
not
just
like
a
one-way
messaging
stream.
Right
like
you,
could
you
could
proactively
send
messages
from
your
application
again,
just
like
a
text
message,
but
you
could
send
that
to
groups,
you
could
send
it
to
individuals
and
then
I'm
sure
you
can
have
like
some
of
those
more
rich
capabilities.
Like
you
know,
images
and
video,
and
like
all
that
types
of
stuff
we
could
send
to
these
whatsapp
recipients.
B
That's
exactly
correct
and
what
I
love
most
about
being
able
to
work
with
the
whatsapp
channel
is
the
code
is
literally
the
same.
I've
pulled
my
code
up
in
visual
studio
and
so
I'll
show
you
really
quickly
just
what
the
difference
is
between
sending
a
message
via
sms
and
a
message
via
whatsapp
and
you'll
laugh
at
this
okay,
if
we
were
just
sending
this
message
through
sms,
you
see
lines
194
and
195
here,
where
we
have
a
two
and
a
from
phone
number
for
us
to
send
a
message
to
yeah.
B
B
Yeah,
that's
exactly
correct.
It
tells
twilio
hey
switch
channels
instead
of
using
sms
or
mms
in
some
scenarios,
go
ahead
and
use
whatsapp
and
that
mms
part
is
really
important,
because
there
are
some
countries
that
don't
do
as
well
with
as
say,
the
united
states
does,
when
sending
picture
messages
or
video
messages.
A
Right,
nice,
nice,
so
I
guess
a
quick
sidetrack
really
quickly,
so
we're
doing
this
with
whatsapp,
but
I'm
guessing.
This
means
that,
if
not
now,
maybe
sometime
in
the
future
like
there
might
be
possibilities
to
integrate
other
types
of
messaging
apps
like
I
know
some
folks
use
telegram.
There's
signal,
there's
tons
of
stuff
right
that
folks
use
to
send,
like
you
know,
phone
to
phone
messages,
sometimes.
B
Yes,
that's
exactly
right,
I
know.
Twilio
is
really
really
really
passionate
about
making
communication
easy
and
seamless
across
the
channels
that
customers
prefer
to
be
contacted
on.
So
there
are
even
some
products
that
we
have
where
you
can
use.
Facebook
messenger
or
you
could
use,
say
smart
devices
like
a
google
assistant
or
an
amazon
alexa
to
send
information
to
customers,
which
is
really
cool.
Yeah.
A
I
think
what
I
also
like
about
this
is
you?
Don't
you
didn't
have
to
install
any
additional
sdks
or
libraries
or
you're,
not
calling
anything
different
like
you
said
like
you're,
just
using
the
same,
you
know
five
lines
of
code
or
so
to
send
messages,
and
you
just
like
change
a
little
bit
of
change
a
little
bit
of
text
but
like
it's
still
doing
the
same
thing.
B
That's
exactly
right,
and
so
this
is
your
standard
asp.net
core
web
application
right.
It's
just
using
mvc
we've
added
the
twilio
nuget
package,
we've
literally
just
typed
in
these
lines
of
code,
though
they
were
already
there
literally
just
typed
in
these
lines
of
code,
you
could
come
in
here
and
even
add
a
photo
to
it
if
you
wanted
to,
and
it
would
absolutely
still
work.
B
A
B
That's
such
a
great
question.
So,
as
we
were
walking
through
the
template
here,
we
could
go
next.
Configure
your
sandbox
and
you'll
see
it
says
when
a
message
comes
in,
we
can
send
that
message
to
a
url
and
that
url
will
then
actually
twilio
will
send
a
post
request
to
that.
Url
and
you're
respond
back
with
a
language
that
we
call
twiml.
It's
twilio's,
markup
language,
it's
a
language
that
we
know
how
to
interpret,
but
it's
an
xml
based
language,
and
so
you
could
put
things
in
there
like
message
hi.
B
B
That's
exactly
correct.
These
templates
are
literally
for
the
scenario
where
you
need
to
re-establish
communication
with
a
number
that
may
have
already
joined
your
sandbox,
but
now
is
trying
to
connect
with
you
outside
of
that
24-hour
period.
We
use
these
templates
to
make
sure
that
your
the
the
communication
that's
happening
is
not
a
spam
message,
because
that's
really
important,
you
know.
A
B
That's
exactly
right,
but
you
could
do
that
from
from
c
sharp
code.
If
you
wanted
to,
and
so
what's
really
cool
about
this
is
I've
shown
the
demo
where
we
would
send
a
message
using
whatsapp,
but
respondent
back
is
literally
just
as
simple
as
setting
up
an
api
endpoint
and
having
it
send
back
just
the
xml
that
twilio
understands
it's
really
easy
to
do.
A
So
corey
I
heard
you
talk
about
swimmer,
right
and
I'm
guessing.
That
means
twilio
markup
language
and
I'm
guessing
it's
some
type
of
eczema
type
format,
I'm
guessing
some
type
of
structure
that
you
generate
that
tulio
understands
and
interprets
to
be
like
okay.
Well,
this
is
the
action
you
want
me
to
take
at
this
point.
Yeah
right
now.
Do
we
have
any
types
of
libraries
or
tools
from
a
net
perspective
that
could
help
you
generate
that
twiml
language,
or
is
that
something
that
folks
have
to
write
by
hand?
Oh
no.
B
It's
it's
already
built
into
the
nuget
package.
So,
what's
really
cool
is
if
someone
does
send
a
text
message
or
a
whatsapp
message
in
and
it
hits
your
api.
You
can
literally
just
say
I'm
creating
a
new
messaging
response
and
then
append
a
body
or
a
photo
or
say
update
the
sender
address
to
that
messaging
response
and
then
return
that
message
in
response
says:
xml
and
asp.net
core
will
understand
how
to
process
it,
and
once
it
gets
back
to
twilio,
twilio
interprets
it
and
performs
the
actions
on
your
behalf.
B
A
B
Definitely
so
I've
got
the
docs
up
here
and,
as
you
can
see,
I'm
looking
at
the
programmable
sms,
quick
start
for
csharp.net
core
and
here's
some
sample
code.
Just
here
on
the
right
looks
almost
exactly
like
the
code
that
we
had
in
visual
studio.
Again,
the
only
difference
for
whatsapp
is,
you
would
just
append
whatsapp
to
the
front
of
the
phone
number.
But
then,
if
you
wanted
to
see
how
to
respond
to
an
incoming
text
message,
we've
got
that
same
sample
code.
B
Here
literally
messaging
response
create
a
new
message
and
then
in
one
of
our
previous
videos,
we
talked
about
some
helper
libraries
that
you
can
use
when
building
asp.net
core
applications
with
twilio.
This
specific
sample
is
actually
using
it,
which
is
why
you
see
at
the
top.
It
says
dotnet
ad
package,
twilio
asp.net.com,
using
that
specific
helper
library,
you
can
literally
just
say,
return,
twiml
messaging
response.
It
is
that
simple
right.
B
A
So
corey,
when
you're
going
through
that
demo,
I
just
imagine
all
kinds
of
crazy
scenarios
that
we
can
do
with
like
machine
learning
or
you
know
ml.net
or
cognitive
services
with
like
folks,
responding
and
sending
really
interesting
messages
to
customers.
Do
you
see
a
lot
of
that
with
you
know,
some
of
the
folks
that
you
interact
with
and
work
with.
B
A
All
right,
great
corey,
so
what
we're
gonna
do
is
we're
gonna,
stop
here
and
we're
gonna
move
on
to
the
next
episode,
where
you're
going
to
talk
to
me
a
little
bit
about
how
this
whole
autopilot
thing
works.
So
for
everyone,
that's
watching
make
sure
you
check
out
the
show
notes
for
all
the
great
resources,
the
code,
the
samples
all
the
documentation
about
twilio
and
rating
applications
that
interact
with
whatsapp
and
then
make
sure
you
tune
in
for
the
next
one,
which
is
going
to
be
really
cool.