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@@ -303,7 +303,7 @@ svr.Get("/stream", [&](const Request &req, Response &res) {
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res.set_content_provider(
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data->size(), // Content length
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"text/plain", // Content type
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- [data](size_t offset, size_t length, DataSink &sink) {
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+ [&, data](size_t offset, size_t length, DataSink &sink) {
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const auto &d = *data;
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sink.write(&d[offset], std::min(length, DATA_CHUNK_SIZE));
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return true; // return 'false' if you want to cancel the process.
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