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[Music]
solo there and welcome to another
tutorial my name is Tamara Bakshi and
this time we're going to be going over
how you can use a Lambo fire in Iowa and
switch it wanna make HTTP GET request
and in this case we're going to be using
the HTTP band example ref API in order
to basically send a very simple HTTP GET
request through Valero fire to a sheet
to be bare and then we're going to route
some information from a tree via HTTP
band such as these headers of the
request as well as the IP address and
much more and plus what we're going to
do is they're going to take that
information from JSON format parse that
UPS JSON serialization and then we're
going to split to the user ID privy help
to the console in Xcode now there isn't
much to explain here but what I would
say and thank you to labels for sending
in the question for this video and of
course I really hope do hope is we'll be
able to answer your question and force
you actually ask how you can use LMO
fire in Swift and iOS or image
asynchronous issues if you request there
will be other parts coming up soon about
post delete update request and more I'll
but for now let's go ahead and simply
sit with the request the get request
alright so now go over to the coding
part where I want to show you exactly
how you can actually code in this simple
iOS application let's get to it
alright so welcome back to the coding
part now I'm going to show you how
exactly you can actually implement this
ulema fire application now if I go back
to Xcode over here as you can see I've
got this little Xcode window set up as
well as this short code now if I go to
my iOS simulator which is actually
running this code and if I click on the
screen once and go back to Xcode as you
can see Xcode has printed out three
different objects the first object is
the raw JSON value received from HDTV
bin the second one is the IP address
origin from HTTP bin
and of course the third one is the URL
or the request that we sent to HTTP bin
all right not me flame what's actually
going on behind the scenes in the code
now what's happening here is first of
all in touch us again whenever you click
on the view the make requests function
called invited me request
I then call something called the request
function the request function is a part
of the Olin mo fire framework i packet
the URL that i'd like to call and by
default this may get requests and that's
why I'm calling
slash get on HDTV been org I then look
for a JSON response
what's a lamb a fire gathers this JSON
response order swans in general then we
store the response and variable called
response and recall this callback
handler and they say what this means is
that this function or this block of code
will be called right as a responsive
gained from this request
now remember something about this which
is that let's just say I want to make a
long-running request where let's just
say I have to upload files this can't
request or to this get in Oh HTTP server
if I want to say print hello this is
message to and inside of the block of
code I were to say hello this is method
one then what would happen even message
to a print first and then misses one
this is because when you call request
this isn't called mmediately request is
called and now allow a fire has started
to make the request to the HTTP server
then what happens is it go ahead and run
this code while in the background it's
actually still making the HTTP request
once the HTTP request is over then this
line of code or whatever main code is is
stopped and this code is then run and
then it continues from there and so what
happens is number two will be printed
and then number one will be printed this
might not happen right now because the
HTTP vendor or request is practically
instant but sometimes it may happen
depending on the internet speed now this
is going to run on to my iPhone
simulator and if I just click on and
screen here oh as you can see if there
happen luckily my internet speed wasn't
fast enough and it said hello this is
message
you it then printed everything else that
I wanted it to and then said hello this
is message one alright so that is how
you can implement that but just one more
thing I'd like to show you here is how
we are actually parsing our JSON now the
point here one parsing the JSON is
actually that the fact that a lambo
choir already uses ash trees on
serialization in the backend to parse
the JSON for us and then returns the
JSON as in any object not in any object
but on any on any type and so what we do
is I mean this can be optional because
LMO fire may not have received json from
the request or from the HTTP server and
so what i do is i reminisce LED on it
and I say it's the value of the result
in response it's not mailed and put that
in JSON and then create a new variable
called JSON object and set this to the
JSON as a string and object dictionary
then we then have constants origin and
URL inside of origin we are setting
origin to the origin object from the
JSON object and what's important is to a
string as you can see that's what that
is in our JSON right there and then of
course our converting the URL object to
a string as well and then once we've got
bells we are then able to have these
print messages they'll actually print
out all that data and that is how you
can use a lamp wire in Swift free in
order to actually parse JSON responses
from HTTP servers and that was the
tutorial today I really hope you enjoyed
I hope this was able to solve your
question Vaibhav alright so thank you
put me in your question of course and I
really do hope you were able to learn
from this and of course if you did
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watching today goodbye