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[http_request] Reduce heap allocations in update check by parsing JSON directly from buffer (#13588)

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J. Nick Koston authored and GitHub committed 2026-02-10 13:53:53 -06:00
1 parent 1a6c67f92e
commit c03abcdb86
3 files changed
+17 -16
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esphome/components/json/json_util.cpp
+6 -1
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@@ -25,8 +25,13 @@ std::string build_json(const json_build_t &f) {
}
bool parse_json(const std::string &data, const json_parse_t &f) {
// NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
return parse_json(reinterpret_cast<const uint8_t *>(data.c_str()), data.size(), f);
}
bool parse_json(const uint8_t *data, size_t len, const json_parse_t &f) {
// NOLINTBEGIN(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
JsonDocument doc = parse_json(reinterpret_cast<const uint8_t *>(data.c_str()), data.size());
JsonDocument doc = parse_json(data, len);
if (doc.overflowed() || doc.isNull())
return false;
return f(doc.as<JsonObject>());