Unleash/unleash-client-go

package context

// Context specifies the context in which a feature toggle should be considered
// to be enabled or not.
type Context struct {
    // UserId is the the id of the user.
    UserId string

    // SessionId is the id of the session.
    SessionId string

    // RemoteAddress is the IP address of the machine.
    RemoteAddress string

    // Environment is the environment this application is running in.
    Environment string

    // AppName is the application name.
    AppName string

    // CurrentTime is used for date constraints. Defaults to time.Now if not set.
    CurrentTime string

    // Properties is a map of additional properties.
    Properties map[string]string
}

// Override will take all non-empty values in 'src' and replace the
// corresponding values in this context with those.
func (ctx Context) Override(src Context) *Context {
    if src.UserId != "" {
        ctx.UserId = src.UserId
    }
    if src.SessionId != "" {
        ctx.SessionId = src.SessionId
    }
    if src.RemoteAddress != "" {
        ctx.RemoteAddress = src.RemoteAddress
    }
    if src.Environment != "" {
        ctx.Environment = src.Environment
    }
    if src.AppName != "" {
        ctx.AppName = src.AppName
    }
    if src.CurrentTime != "" {
        ctx.CurrentTime = src.CurrentTime
    }
    if src.Properties != nil {
        ctx.Properties = src.Properties
    }

    return &ctx
}

// Field allows accessing the fields of the context by name. The typed fields are searched
// first and if nothing matches, it will search the properties.
func (ctx Context) Field(name string) string {
    switch name {
    case "userId":
        return ctx.UserId
    case "sessionId":
        return ctx.SessionId
    case "remoteAddress":
        return ctx.RemoteAddress
    case "environment":
        return ctx.Environment
    case "appName":
        return ctx.AppName
    case "currentTime":
        return ctx.CurrentTime
    default:
        return ctx.Properties[name]
    }
}