Paul Burlumi paulburlumi

## context_keys_as_struct_not_int_or_string.md

      
        
          
            
              
              2 files
            
          
          
            
              
              3 forks
            
          
          
            
              
              0 comments
            
          
          
            
              
              18 stars
            
          
        
        
          
              
          
          
            
                ww9
                / context_keys_as_struct_not_int_or_string.md
            
            
              Last active
              May 8, 2024 04:27
            
              
                Why use empty struct{} and not int or string for context.Value() key types in #go
              
          
        
      
        
  
      
    Use struct{} as keys for context.Value() in Go

In the other file of this gist I detail why we should use struct{} as context.Value() keys and not int or string. Open gist to see main.go but the TLDR is:
	type key struct{}
	ctx = context.WithValue(ctx, key{}, "my value") // Set value
	myValue, ok := ctx.Value(key{}).(string) // Get value