Method ViewData

context/context.go:3741–3757

ViewData saves one or more key-value pair in order to be passed if and when .View is being called afterwards, in the same request. Useful when need to set or/and change template data from previous hanadlers in the chain. If .View's "binding" argument is not nil and it's not a type of map then these

(key string, value interface{})

//
// Example: https://github.com/kataras/iris/tree/main/_examples/view/context-view-data/
func (ctx *Context) ViewData(key string, value interface{}) {
	viewDataContextKey := ctx.app.ConfigurationReadOnly().GetViewDataContextKey()
	if key == "" {
		ctx.values.Set(viewDataContextKey, value)
		return
	}

	v := ctx.values.Get(viewDataContextKey)
	if v == nil {
		ctx.values.Set(viewDataContextKey, Map{key: value})
		return
	}

	if data, ok := v.(Map); ok {
		data[key] = value
	}
}

// GetViewData returns the values registered by `context#ViewData`.
// The return value is `map[string]interface{}`, this means that