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Fix #2416

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yhirose
2026-04-03 18:27:12 -04:00
parent 6607a6a592
commit 3093bdd9ab
5 changed files with 90 additions and 156 deletions
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README.md
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@@ -461,7 +461,7 @@ svr.set_pre_request_handler([](const auto& req, auto& res) {
### Response user data
`res.user_data` is a `std::map<std::string, httplib::any>` that lets pre-routing or pre-request handlers pass arbitrary data to route handlers.
`res.user_data` is a type-safe key-value store that lets pre-routing or pre-request handlers pass arbitrary data to route handlers.
```cpp
struct AuthContext {
@@ -471,12 +471,12 @@ struct AuthContext {
svr.set_pre_routing_handler([](const auto& req, auto& res) {
auto token = req.get_header_value("Authorization");
res.user_data["auth"] = AuthContext{decode_token(token)};
res.user_data.set("auth", AuthContext{decode_token(token)});
return Server::HandlerResponse::Unhandled;
});
svr.Get("/me", [](const auto& /*req*/, auto& res) {
auto* ctx = httplib::any_cast<AuthContext>(&res.user_data["auth"]);
auto* ctx = res.user_data.get<AuthContext>("auth");
if (!ctx) {
res.status = StatusCode::Unauthorized_401;
return;
@@ -485,8 +485,6 @@ svr.Get("/me", [](const auto& /*req*/, auto& res) {
});
```
`httplib::any` mirrors the C++17 `std::any` API. On C++17 and later it is an alias for `std::any`; on C++11/14 a compatible implementation is provided.
### Form data handling
#### URL-encoded form data ('application/x-www-form-urlencoded')