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How to Send Targeted Websocket Updates to Specific Clients in Go (Gorilla)?

Published on 2024-11-09
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How to Send Targeted Websocket Updates to Specific Clients in Go (Gorilla)?

Sending Websocket Updates to Specific Clients in Go (Gorilla)

Despite being a novice in Go, you seek guidance on implementing websocket communication for your typeahead project. You have tried leveraging examples from Gorilla's GitHub repository but encounter challenges in understanding how specific clients can be identified and targeted for websocket updates.

To uniquely identify clients, you need to modify the Gorilla hub and client structs to include an ID field. This field can be of a type such as int or string.

Within the Hub struct, replace the connections map with a map that uses this ID type as the key and connection object as the value:

connections map[idType]*connection

Additionally, change the broadcast field in the Hub struct to use a custom message type containing both the message data and the target client ID:

send chan message

Replace the for loop responsible for sending broadcast messages with the following code to send messages to specific clients:

for {
    select {
    case client := 

To send messages to specific clients, create a message specifying the target client's ID:

hub.send 

By implementing these modifications, you can now send targeted websocket updates to specific clients in your Go application.

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