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Hello and welcome to the Golang programming language course.

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In the previous session, we could define channels for chat application, and now it's time to design

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and implement methods for the channels created.

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First, you want to create a method for adding a client, so define the middle name like register clients.

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Because these methods are related to the config restaurant.

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We define a receiver for them, so we'll be right fine set the receiver config pointer off config and

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set a name, for example.

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Register.

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Client.

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These metal accept a connection as input parameter playing by the time pulling trough.

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We have such a connection.

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Now he wants to implement the body of method, this method is supposed to end the current connection

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as a client to the client's map.

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So we write config

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that clients

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now that content connection IP as the key for the map for access, the IP of the client recording agreement

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at this function.

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So the right client got removed.

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Address dots is.

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And initialize it by the client equals client.

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For display, the list of claims we can use from pain and function.

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FP

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clients.

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Country that claims now we can see the IP of each client.

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We could define the method for add a new client and class map.

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Now we want to create a method for removing the client, so define the method name like remove clients.

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Fine.

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Set a precedent, for example, config.

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By the time Poitras kind of set a name, for example, Reno.

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Client,

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despite the fact that the connection is input parameter, client, web socket, the connection.

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Now he wants to implement the body of method, this method is supposed to remove the connection of the

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client from the client's map for this purpose, declining delete function, the delete built in function

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delete as the element with the specified key from the map.

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This function acts that two parameters first the map collection and second, the key of the element

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to be removed from the map.

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So calling delete function.

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Said clients map as arguments feek dot clients and sit IP of client as key argument clients start remote.

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Address Dot estranged.

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Now we can see the list of clients after a dirty move by the Colleen and Function FP

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clients.

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And calling conflict that class now, we could define the method for removing the client from our client's

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map.

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Now it's time to design the method whose job is to transfer data from the server to the class.

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So define the method name like Message Data's

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fine set a receiver, for example Palm Beach from comfiest strong

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message dataset.

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This method accept an object from message extract as input parameter, for example, research by the

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typed message S3.

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The job of this method is to call the clients in the client's mapped election and send it, these are

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a message to the whole clients.

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So we use the range loop to iterate the clients.

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So we write full on the word score.

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Comma defined a variable like client column equals range.

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We want to iterate lists of clients so calling class map from configure struct config.

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But clients,

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now we want to send the message to each client to do these videos from Jason Cadec.

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Jason is a codec to send or receive JSON data in a frame from an VIPs get connection.

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So from which to get packages, putting JSON and invoking send method.

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This function returns and or object.

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So first, define and error variable.

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Error column equals this wicked dot JCR

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dot send function.

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This method acts the two parameters.

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First, the connection.

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So we set client.

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And second is an object.

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In this case, our argument is a object from messages struct.

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So we send message.

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Now, check status or

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if it or not, equals need Lott, the fatal error don't now we could define a method for send data from

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Syria to clients in order not to prolong the time of decision.

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We will finish it and we will continue the content in the next session.

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Goodbye.