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rinha-2024-q1-vlang's Issues

Use strings.builder

Não sei se isso pode afetar muito, mas experimente usar string builder ao invés de concatenação.

        debug('[${req.method}] ${req.path} - ${start.elapsed()}')

        res.write_string('HTTP/1.1 ${int(response.code)} ${response.code.str()}\r\n')

Use json2 to encode and json to decode

json2 is, probably, the best and faster option to encode. However, json2 decoding is VERY slow. I suggest use both

Here, for example

        json_obj := json2.fast_raw_decode(json_str)!.as_map()
        descricao := json_obj['descricao']!.str()
        tipo := TipoTransacao.from_str(json_obj['tipo']!.str())!

time.now() is too slow

I suggested use C gettime function with a faster clock ID, already in UTC format to help in json encode, too

dockerfile com versão fixa do V

Só para caso você fique com medo de a ultima versão quebrar na hora na rinha devido ao v up

Não testei, mas setar uma versão fixa do v lang seria algo mais ou menos assim

FROM debian

RUN apk add postgresql-dev

RUN apt-get -qq update
RUN apt-get -qy install --no-install-recommends build-essential git clang tcc postgresql-dev \
 && apt-get clean \
 && rm -rf /var/lib/apt/lists/*

ENV PATH=/opt/vlang:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

ENV GIT_SSL_NO_VERIFY=1

WORKDIR /opt/vlang

RUN git clone --depth 1 https://github.com/vlang/v /opt/vlang && make


RUN ln -s /opt/vlang/v /usr/bin/v

# choose v version `tags/weekly.2024.06`
RUN git fetch --all --tags && git checkout tags/weekly.2024.06 && make && v -version

WORKDIR /app

COPY ./src /app/src

#Create a build directory
RUN mkdir /app/bin

RUN v /app/src -prod -o /app/bin/app

ENTRYPOINT ["/app/bin/app"]

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