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add 'app.Validator' field for ReadJSON, ReadXML, ReadMsgPack, ReadYAML, ReadForm, ReadQuery data validation, defaults to empty but can be set-ed to 3rd-party packages

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Former-commit-id: e42d9be5928edcdaad4579c008f741b1a7d97da9
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Gerasimos (Makis) Maropoulos
2020-04-09 19:02:08 +03:00
parent 1b02f048ef
commit ad154ea479
6 changed files with 166 additions and 112 deletions
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@@ -159,11 +159,13 @@ Here is a preview of what the new Hero handlers look like:
Other Improvements:
- New `app.Validator { Struct(interface{}) error }` field and `app.Validate` method were added. The `app.Validator = ` can be used to integrate a 3rd-party package such as [go-playground/validator](https://github.com/go-playground/validator). If set-ed then Iris `Context`'s `ReadJSON`, `ReadXML`, `ReadMsgPack`, `ReadYAML`, `ReadForm`, `ReadQuery`, `ReadBody` methods will return the validation error on data validation failures. The [read-json-struct-validation](_examples/http_request/read-json-struct-validation) example was updated.
- A result of <T> can implement the new `hero.PreflightResult` interface which contains a single method of `Preflight(iris.Context) error`. If this method exists on a custom struct value which is returned from a handler then it will fire that `Preflight` first and if not errored then it will cotninue by sending the struct value as JSON(by-default) response body.
- `ctx.JSON, JSONP, XML`: if `iris.WithOptimizations` is NOT passed on `app.Run/Listen` then the indentation defaults to `" "` (two spaces) otherwise it is empty or the provided value.
- Hero Handlers (and `app.DI().Handle`) do not have to require `iris.Context` just to call `ctx.Next()` anymore, this is done automatically now.
- Hero Handlers (and `app.DI().Handle`) do not have to require `iris.Context` just to call `ctx.Next()` anymore, this is done automatically now.
New Context Methods: