将数据从烧瓶转移到d3的最佳方法 [英] best way to transfer data from flask to d3

问题描述

我有csv表格，在Pandas中处理，我想从Flask服务到浏览器，这样我就可以使用d3来显示信息。如何将数据从Flask传输到浏览器？

I have csv tables, processed in Pandas, that I would like to serve from Flask to the browser so that I can use d3 to display the information. How do I transfer the data from Flask to the browser?

推荐答案

# app.py
@app.route('/my/data/entpoint')
def get_d3_data():
    df = pandas.DataFrame(...) # Constructed however you need it
    return df.to_csv()

然后在前端，将d3.tsv指向上面的端点：

Then on the front end, direct d3.tsv to your endpoint above:

<!-- page.html -->
<script>
d3.tsv("/my/data/endpoint", function(data) {
  console.log(data); // Do something with data
});
</script>

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