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Add Migration steps for Custom Error (#869)

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Adds migration steps for custom error in 1.0
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octave99 2019-05-29 16:47:04 +00:00 committed by Nikolay Kim
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commit fe781345d5
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MIGRATION.md
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@ -238,6 +238,17 @@
* Actors support have been moved to `actix-web-actors` crate
* Custom Error
Instead of error_response method alone, ResponseError now provides two methods: error_response and render_response respectively. Where, error_response creates the error response and render_response returns the error response to the caller.
Simplest migration from 0.7 to 1.0 shall include below method to the custom implementation of ResponseError:
```rust
fn render_response(&self) -> HttpResponse {
self.error_response()
}
```
## 0.7.15