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Add exception handler (#845)

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* Add exception handler

* revert content reader changes

* Add test for and fix exception handler

* Fix warning in test

* Readd exception test, improve readme note, don't rethrow errors, remove exception handler response
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Nikolas 2021-01-28 23:19:11 +01:00 • committed by GitHub
parent 78c474c744
commit 0542fdb8e4
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3 changed files with 90 additions and 23 deletions
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README.md
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@ -177,6 +177,19 @@ svr.set_error_handler([](const auto& req, auto& res) {
});
```
### Exception handler
The exception handler gets called if a user routing handler throws an error.
```cpp
svr.set_exception_handler([](const auto& req, auto& res, std::exception &e) {
res.status = 500;
auto fmt = "<h1>Error 500</h1><p>%s</p>";
char buf[BUFSIZ];
snprintf(buf, sizeof(buf), fmt, e.what());
res.set_content(buf, "text/html");
});
```
### Pre routing handler
```cpp