Working example of writing a Parquet file in C++

CMakeLists.txt

cmake_minimum_required(VERSION 3.10)

project(parq)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED TRUE)

find_package(Arrow REQUIRED)

add_executable(parq park.cc)
target_link_libraries(parq PRIVATE arrow_static parquet)

parquet.cc

#include <arrow/io/file.h>
#include <parquet/stream_writer.h>
#include <stdint.h>

int main()
{
   std::shared_ptr<arrow::io::FileOutputStream> outfile;

   PARQUET_ASSIGN_OR_THROW(
      outfile,
      arrow::io::FileOutputStream::Open("test.parquet"));

   parquet::WriterProperties::Builder builder;
   builder.compression(parquet::Compression::ZSTD);

   std::shared_ptr<parquet::schema::GroupNode> schema;
   parquet::schema::NodeVector fields;
   fields.push_back(parquet::schema::PrimitiveNode::Make(
       "field1", parquet::Repetition::REQUIRED, parquet::Type::BYTE_ARRAY, parquet::ConvertedType::UTF8
   ));
   fields.push_back(parquet::schema::PrimitiveNode::Make(
       "field2", parquet::Repetition::REQUIRED, parquet::Type::FLOAT
   ));
   fields.push_back(parquet::schema::PrimitiveNode::Make(
       "field3", parquet::Repetition::REQUIRED, parquet::Type::INT32, parquet::ConvertedType::INT_32
   ));

    schema = std::static_pointer_cast<parquet::schema::GroupNode>(
   parquet::schema::GroupNode::Make("schema", parquet::Repetition::REQUIRED, fields));

   parquet::StreamWriter os{
      parquet::ParquetFileWriter::Open(outfile, schema, builder.build())};

    for (int i = 0; i < 1000; ++i)
    {
        os << "TESTCOL" << 3.14f << int32_t(100) << parquet::EndRow;
    }
}