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PODownload lengthy data as a CSV file
 

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  1. PODownload lengthy data as a CSV file
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    <p>I need to download the contents of a table shown in the view as a CSV file. I have code to format the contents of the table properly so that it can be stored as a .csv file (for example, the column separator is a comma, each record of the table is in a new line). </p> <p>So, in my controller, I have the following code:</p> <pre><code>window.location.href = '/download?data=' + encodeURIComponent($scope.csvString); </code></pre> <p>I am using NodeJs for the server part. Here, I have the following route handler:</p> <pre><code>app.get('/download', function (req, res) { var data = req.query.data; res.attachment('data.csv'); res.setHeader('Content-Type', 'text/csv'); res.end(data); }); </code></pre> <p>This works perfectly fine. The download works and the data in the file downloaded is in perfect CSV format. No issues. </p> <p>The issue arises when there are too many records in the table, that is when the data is huge. Due to this, the query parameter is really huge and I assume that it exceeds the limit and thus, the GET request returns with a 400 (Bad Request) error - note that according to my analysis, the request never reaches the server, instead I observed that the request failed using the Chrome Developer Tools. In the browser, the URL simply is <code>www.my_domain.com/download?data=the_lengthy_data</code>. That's it. The web page is blank / empty and no file is downloaded. </p> <p>Thus, I wish to know how I can download the lengthy data? All examples that I came across do a GET request and thus I have to pass the lengthy data as a query parameter. Is there some other approach?</p>
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    1. UScallmekatootie
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    1. COIs the CSV data generated on the front-end, sent to the server, only to be downloaded back onto the client?
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      1. USSalehen Rahman
    2. CO@SalehenRahman Yes your understanding is correct.
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      1. UScallmekatootie
 

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