As per documentation func ParseInt(s string, base int, bitSize int) (i int64, err error) ParseInt always return int64 no matter what. Moreover The bitSize argument specifies the integer type that the result must fit into So basically the your bitSize parameter only tells that the string value that you are going to parse should fit … Read more
I think it’s easier to have one $GOPATH per project, that way you can have different versions of the same package for different projects, and update the packages as needed. With a central repository, it’s difficult to update a package as you might break an unrelated project when doing so (if the package update has … Read more
Note: As of Go 1.4, the String() code below can be auto-generated using Go’s new generate feature, combined with the stringer command. See here for more info. Apart from ANisus’ answer, you can do the following. package main import “fmt” import “crypto/tls” type Ciphersuite uint16 const ( TLS_RSA_WITH_RC4_128_SHA = Ciphersuite(tls.TLS_RSA_WITH_RC4_128_SHA) TLS_RSA_WITH_3DES_EDE_CBC_SHA = Ciphersuite(tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA) TLS_RSA_WITH_AES_128_CBC_SHA = … Read more
What you see is a compiler warning, but the app will run. Your condition is always true: contentType != “image/jpeg” || contentType != “image/png” You compare a string variable to 2 different string values (using not equal), so one of them will surely be true, and true || false is always true. Most likely you … Read more
In the general case This is a question of design. Interfaces offer something that functions don’t : dynamic dispatch. So if later on you want (possibly your own) client code to apply said function to an object, and envision that this object may possibly be of one of several different types at one given point … Read more
You need not bother about refreshing tokens until the time you are storing the Expiry parameter. After getting the ‘Token’ object, store the following in your database: token.AccessToken, token.RefreshToken, token.TokenType and token.Expiry while fetching, construct the token object again using the above parameters: token := new(oauth2.Token) token.AccessToken = {{ From DataBase }} token.RefreshToken = {{ … Read more
The package doc of fmt explains it: The %v verb is the default format, which for floating numbers means / reverts to %g which is %e for large exponents, %f otherwise. Precision is discussed below. If you always want “decimal point but no exponent, e.g. 123.456”, use %f explicitly. But you can only use that … Read more
A good model to check out is the source code of Go itself: http://golang.org/src (in addition of the official “Effective Go”) You will see that this approach (separating based on language items like struct, interface, …) is never used. All the files are based on features, and it is best to use a proximity principle … Read more
For empty field you can check for empty values which is zero value which is not nil in case of struct. When storage is allocated for a variable, either through a declaration or a call of new, or when a new value is created, either through a composite literal or a call of make, and … Read more