Please dont listen to Lucas

Trying to rewrite toString Transaction struct function with bytes.Buffer method. More info here.

Personally, If I need to concat multiple variables with different types, I prefer fmt.Sprintf.

Check info about Golang Workspace configuration here.
Whole project must be importable via go get

Golang provides three syntaxes for the variable declaration:

• The most comfortable way is foo := "foo" but with this syntax you probably makes mistakes like binary_address := []byte{0} (wallet.go:62) or s := "" (transaction.go:70).

• Other way consists in using the keyword var to the memory allocation and waits for the compiler to infer the variable type from the right side of declaration: var foo = "foo". I think its better way that the first one because allows to the developer to allocate memory without occupying them.

• The last way its an extended version of the second one that includes variable type: var foo string = "foo". This way forces the developer to write more code, but make it more legible (and it's my favorite way).

What do you think about it?

Golang has its own official style guide here. Also, Golang team has develop its own lint following that style guide: golint

Official command to autoformat whole project is go fmt -s -w ./. More info about go fmt command here.