1
00:00:11,730 --> 00:00:17,820
Hello and welcome to the Golang programming language course in the previous session, we could define

2
00:00:17,820 --> 00:00:25,080
a say, the student function for rest later and now it's time to implement another function that is

3
00:00:25,080 --> 00:00:27,010
supposed to update exists.

4
00:00:27,030 --> 00:00:33,810
A student from personal database so defined the function names like Update a student.

5
00:00:34,500 --> 00:00:39,360
This function accept two parameters first and object from a response writer.

6
00:00:39,660 --> 00:00:42,740
And second, the pointer appears to be request.

7
00:00:43,350 --> 00:00:48,980
So we write for update.

8
00:00:50,340 --> 00:01:05,720
A student set two parameters first response from IS to response writer and second request as pointer

9
00:01:05,730 --> 00:01:08,040
of Institute Author request.

10
00:01:10,860 --> 00:01:13,650
Now we to implement the body of the function.

11
00:01:14,430 --> 00:01:22,260
This function is supposed to update existing student in database, so we should convert the data received

12
00:01:22,260 --> 00:01:26,940
from the end point into a student object and save it in the database.

13
00:01:27,630 --> 00:01:37,440
To do this, we do the following first create an object of a student model by the student.

14
00:01:41,230 --> 00:01:50,470
Model law student, therefore, we received a data sent from the killer through the body and the request

15
00:01:50,470 --> 00:01:58,240
by the new theycould function from Jason Pichet and associate into a student object, this function

16
00:01:58,240 --> 00:02:06,580
returns a new decoder that reads from reader, so first define an error variable as return type error

17
00:02:06,610 --> 00:02:07,090
column.

18
00:02:07,090 --> 00:02:25,150
E calls Jason Dart's new decoder and Seth body of recklessness argument with body and calling decode

19
00:02:25,150 --> 00:02:32,500
function, decode function and store to receive data into a student model.

20
00:02:33,160 --> 00:02:34,950
Anderson student.

21
00:02:39,840 --> 00:02:47,010
Now, check the NRA status, so be right, if error not equals nil of the

22
00:02:49,680 --> 00:02:50,070
error.

23
00:02:54,640 --> 00:03:00,910
And sits an error of state was in response Heather and displayed for a client by their printer function.

24
00:03:00,920 --> 00:03:05,680
So the right response dots, right?

25
00:03:06,580 --> 00:03:21,340
Heather select an error status, for example, STP dot status, internal server status, internal server

26
00:03:21,340 --> 00:03:27,490
error and displayed for client by the colleague.

27
00:03:27,520 --> 00:03:41,290
If M t dot f trent f function first response, second parameter set and misses, for example, could

28
00:03:42,430 --> 00:03:45,610
not update.

29
00:03:47,960 --> 00:03:48,860
Student.

30
00:03:51,080 --> 00:03:59,990
By Edward Pierce, and we and sit anywhere valuable.

31
00:04:03,980 --> 00:04:06,380
And set a return value return.

32
00:04:07,040 --> 00:04:16,040
We can now connect to the database, then call the query to update a student, so we write the tools

33
00:04:18,080 --> 00:04:25,700
and calling update function updates and sit a student as our human for this function.

34
00:04:26,420 --> 00:04:31,250
Student OK before the call and say the perfect.

35
00:04:32,390 --> 00:04:35,810
Now we were able to implement the update function.

36
00:04:36,050 --> 00:04:44,000
That Update and N'existe, a student from the database based data receiving from Client The Rest API.

37
00:04:44,210 --> 00:04:44,660
OK.

38
00:04:44,900 --> 00:04:52,550
In this session, we will able to implement the necessary functions to connect the rest API to the database

39
00:04:53,150 --> 00:04:55,670
in order not to prolong the time of decision.

40
00:04:55,850 --> 00:04:59,840
We will finish it, then we will continue the content in the next session.

41
00:05:00,080 --> 00:05:00,560
Goodbye.