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Node.js Express Project to Send OTP SMS Messages to Mobile Number Using Fast2SMS API in Javascript
Mar 12, 2025
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0:01
uh Hello friends today in this tutorial
0:03
I will be showing you that how to
0:04
receive OTP message inside your node CHS
0:08
application for any sort of verification
0:11
inside your application for login
0:13
application or any sort of so for doing
0:16
this we will be using this API called as
0:18
fast to SMS so basically if you go to
0:22
this website here fast to sms.com so you
0:25
just need to register on this website
0:28
and after registration you will get this
0:30
interface and you will get get some free
0:33
credits where you can test out the
0:34
application so you will see this is a
0:36
brand new account that I created inside
0:39
this website and it offers its own API
0:42
which is this section Dev API and after
0:45
that you the second option is this API
0:48
key so select this option and uh it will
0:51
automatically generate your API key you
0:53
can also re regenerate it so this is my
0:56
API key simply copy this so accordingly
0:59
just sign up and you will have your own
1:01
API key simply copy this and now inside
1:05
your node shares project guys so this is
1:07
my node Chase project let me build it
1:09
from
1:11
scratch
1:13
and let
1:16
me move out of this directory let me
1:19
also close this and make a new directory
1:22
which is node OTP project I will go into
1:26
this directory node OTP project
1:30
and I will open this inside my visual
1:32
studio code text editor so now we will
1:35
initialize the empt package.json file
1:38
which contains all the information about
1:40
the project now we need to install this
1:42
dependency which is uh this is a node
1:45
CHS dependency which offers uh a great
1:49
interface to this website which is fast
1:51
to SMS this is a module here so you can
1:55
search for this module
1:57
fast-2 D SMS so this is a module node
2:01
Chase module which interacts with this
2:03
API so if you search for this module the
2:06
very first link which comes in you will
2:09
see this is the module here it contains
2:11
284 weekly downloads so simply you need
2:14
to install this fast -2- SMS so it will
2:19
hardly Take 5 Seconds to install this
2:21
module after installation you can use
2:24
this module so simply I will create the
2:26
index.js file the starting point of the
2:29
application now we will simply ex import
2:32
this module fast to SMS we will require
2:36
it
2:37
fast-2 SMS so after requiring this now
2:41
we simply need to uh include the API key
2:45
guys so inside options so just create
2:49
options variable here and inside this
2:51
object it contains a parameter called as
2:54
authorization so here you need to
2:56
include your own API key so just go to
3:00
your website dashboard I have already
3:03
shown you how to register it simply copy
3:05
this API key and paste it
3:09
here and after that guys the second
3:12
parameter is numbers here you can also
3:14
provide uh bul numbers also multiple
3:18
numbers so if you want to send out
3:21
multiple messages at one time you can do
3:23
it so numbers
3:26
colon and then inside this array you can
3:29
pass the number
3:30
so numbers should be passed without
3:33
mentioning the country code so I will
3:35
pass my number you will see just write
3:37
it and also the second parameter will be
3:40
the message guys whatever message that
3:42
you want to send in my case I will send
3:44
OTP you can send out anything so we will
3:47
say this is a test message test OTP code
3:53
message your OTP
3:57
is code is some random value 5 6 7 8 so
4:04
now we need to send this to the number
4:07
that we mentioned
4:08
here so for sending it it is very simple
4:11
we will use the module which is fast to
4:13
SMS and this contains a send method send
4:16
message method and here we will provide
4:18
the options that's it so now guys this
4:21
will return a this is a Asing function
4:24
this will return a promise so we can
4:27
display the response to the user simply
4:30
in the console that if the message is
4:32
sent or
4:33
not and if any sort of error take place
4:36
we can catch it by do catch and we can
4:39
display the error in case of error like
4:42
this console log
4:45
error so basically now if I launch the
4:49
application if I
4:52
see uh if I write here node
4:56
index.js so you will see it will send
4:59
out the OTP and now you will see it will
5:01
return out the request ID to this and
5:04
message SMS sent successfully so we have
5:07
successfully send the OTP message let me
5:09
show it uh this will be let me show it
5:12
let me move this window a little bigger
5:15
so let me show the mobile where I
5:17
received this so you will see guys if if
5:20
I can show you like
5:22
this this is the message is received
5:24
here you will see I just want to
5:30
you can see that dear user this is a
5:32
test OTP code message your OTP code is
5:36
5678 so I just received it right now you
5:39
will see that so if you do it you can
5:42
also receive it on your mobile phone as
5:44
well so just need to provide your number
5:46
and after that it will just uh send out
5:49
to you it is damn easy using this API
5:54
and if any if I make any sort of error I
5:57
provide a wrong number and let me run it
6:00
once again you will see that now it will
6:02
show you error that it is a invalid
6:05
number so now it will show you this
6:07
error so this is a very simple node
6:10
module by which you can send out OTP SMS
6:13
messages to any number using node CHS
6:15
using fast to SMS
6:17
API and also guys you can make it as a
6:21
express application you can give take
6:23
the input from the user so we can do it
6:26
we can convert this application so
6:28
simply
6:30
install Express this is very easy so I
6:34
just want to convert this to a express
6:37
application where we can take the number
6:39
as the input so simply we will say we
6:42
will make the index. HTML and we will
6:45
have the form which will make a post
6:48
request send message and the method will
6:51
be post and inside this we will have
6:54
input type of number
6:59
or we can simply say text input type of
7:02
text and here we will say number that's
7:04
it so here placeholder we will say enter
7:07
mobile that's it so this is
7:12
required after that we will have the
7:14
button to send
7:17
message and then we will just say this
7:20
is of type submit that's it so now we
7:24
need to make this post request so inside
7:26
index. jsk SK we need to first of all
7:29
import
7:30
Express so we will say V Express
7:37
required so conab Express and then we
7:41
need to
7:42
app.get when we load the page for the
7:44
very first time the get request we need
7:47
to load the index. HTML file so we will
7:49
say request. send file and durame plus
7:54
uh
7:55
index.html so we need to start the
7:57
server so right here we will say app
8:00
do listen and we will listen on Port
8:03
5,000 and we will say app is listening
8:09
on
8:11
Port 5,000 so you will see that guys if
8:15
I run this application let me comment
8:18
out this code here so that it doesn't
8:21
again send out the message so now if I
8:24
run this you will see
8:31
you can see app is listening on Port
8:33
5,000 so basically if I go to my
8:35
homepage you will see now you will see
8:38
Local Host
8:39
5,000 you will see this is a mobile
8:41
number and send message and we also need
8:44
a field for which we can provide a
8:46
message to the user so we will simply
8:49
say input type text and we will say
8:54
message and we will say placeholder
8:57
enter your message
9:01
and this also is
9:04
required so refresh it and now you will
9:07
see two input Fields will be there first
9:09
for the number and second for the
9:11
message and then we have a simple button
9:13
of send message so simply we need to
9:16
make this post request so we will say
9:19
app. get sorry
9:22
post send message and here we can
9:25
receive these parameters simply by
9:29
requesting this uh by console logging
9:34
it request. body do message and request
9:40
do body.
9:43
number so we have provided these as a
9:46
name parameters so this is very much
9:48
useful it needs to be same because we
9:50
are uh getting this using this name
9:53
parameter so if you launch this
9:56
application again and if if I send out
10:00
this uh any number here if I write
10:02
anything
10:06
here if I click send you will see it
10:10
cannot read it
10:13
because uh we need to for this we need
10:16
to require body passer middleware so
10:19
whenever you are working with any form
10:21
in Express you need this middleware this
10:23
is a built-in middleware you need not
10:25
have to inst install it and then you
10:28
need to initialize this this is very
10:29
easy body pass. URL encoded extended to
10:33
false and then we need to write app do
10:37
use body pass. Json so just write these
10:40
two lines and then your problem will be
10:42
solved and simply once again refresh
10:45
your
10:46
application and send
10:50
out so again send
10:56
out so you will see that guys now the
10:59
these information is printed in the
11:00
console so we are successfully getting
11:02
it from the HTML form inside of express
11:06
application now we simply need to move
11:08
this code which you see here so simply
11:10
you need to move this code here simply
11:13
inside this post request so we can do
11:17
this like this so we can make this
11:20
inside a separate function we will say
11:22
send
11:23
message so we can make this as a async
11:28
function
11:31
async function
11:34
so we can paste this code here like
11:45
this uh like this so function send
11:49
message so now inside this we can call
11:52
this method here send
11:54
message and we can pass the message
11:58
which will be request body. message and
12:01
the number as well request. body. number
12:04
so here we can receive this message.
12:10
number and also we can pass the response
12:13
here response so just pass this response
12:17
object as well so response is there so
12:20
whenever it is successful we will simply
12:21
say to the user we will send out a
12:23
response that
12:25
uh SMS sent successfully
12:32
SMS
12:38
o if any sort of error take place then
12:40
we can say simply send
12:45
out some error Tak on place that's it so
12:50
now we need to replace the number here
12:52
so simply you need to replace it by the
12:55
number that you are receiving here so
12:59
simply just replace number here and for
13:02
the message simply replace this with the
13:06
message so inside this
13:09
field replace it by message that's it so
13:13
now we have made this application
13:16
Dynamic so we can provide the number and
13:19
the message dynamically so once again
13:22
refresh the
13:26
application so again you will see
13:31
it is saying SMS code sent successfully
13:34
here you will see
13:35
that so once again if I show
13:40
you so if I zoom the screen you will see
13:43
once again it is
13:45
received on my phone here so you will
13:51
see this is a latest message which is
13:54
received
13:55
here I'm gotam owner of coding seure so
13:59
in this easy way guys you can send out
14:01
otps SMS messages to any mobile inside
14:05
node chairs I have shown you all the
14:07
source code and if you want the full
14:10
source code you can go to the video
14:11
description link I have given this link
14:14
in the video description you can check
14:16
out and download all the source code
14:17
please hit the like button subscribe to
14:19
channel and I will be seeing you in the
14:21
next video
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