go-csv-tag

Read csv file from Go using tags

The project is in maintenance mode.

It is kept compatible with changes in the Go ecosystem but no new features will be developed. PR could be accepted.

Install

go get github.com/artonge/go-csv-tag/v2

Example

Load

The csv file:

name, ID, number
name1, 1, 1.2
name2, 2, 2.3
name3, 3, 3.4

Your Go code:

type Demo struct {                                // A structure with tags
    Name string  `csv:"name"`
    ID   int     `csv:"ID"`
    Num  float64 `csv:"number"`
}

tab := []Demo{}                                   // Create the slice where to put the content
err  := csvtag.LoadFromPath(
    "file.csv",                                   // Path of the csv file
    &tab,                                         // A pointer to the create slice
    csvtag.CsvOptions{                            // Load your csv with optional options
        Separator: ';',                           // changes the values separator, default to ','
        Header: []string{"name", "ID", "number"}, // specify custom headers
        TagKey: "csv",                            // specify a custom tag key, default to 'csv'
})

You can also load the data from an io.Reader with:

csvtag.LoadFromReader(youReader, &tab)

Or from a string with:

csvtag.LoadFromString(yourString, &tab)

Dump

Your Go code:

type Demo struct {                         // A structure with tags
    Name string  `csv:"name"`
    ID   int     `csv:"ID"`
    Num  float64 `csv:"number"`
}

tab := []Demo{                             // Create the slice where to put the content
    Demo{
        Name: "some name",
        ID: 1,
        Num: 42.5,
    },
}

err := csvtag.DumpToFile(tab, "csv_file_name.csv")

You can also dump the data into an io.Writer with:

err := csvtag.DumpToWriter(tab, yourIOWriter)

Or dump to a string with:

str, err := csvtag.DumpToString(tab)

The csv file written:

name,ID,number
some name,1,42.5