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go-micro/config/source/cli
2024-07-07 22:38:11 +01:00
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cli_test.go move cmd package back to top level. Strip grpc plugin 2024-07-07 22:38:11 +01:00
cli.go move cmd package back to top level. Strip grpc plugin 2024-07-07 22:38:11 +01:00
options.go v5 2024-06-04 21:40:43 +01:00
README.md fix: linting issues (#2566) 2022-09-30 20:32:55 +02:00
util.go

cli Source

The cli source reads config from parsed flags via a cli.Context.

Format

We expect the use of the urfave/cli package. Upper case flags will be lower cased. Dashes will be used as delimiters for nesting.

Example

micro.Flags(
    cli.StringFlag{
        Name: "database-address",
        Value: "127.0.0.1",
        Usage: "the db address",
    },
    cli.IntFlag{
        Name: "database-port",
        Value: 3306,
        Usage: "the db port",
    },
)

Becomes

{
  "database": {
    "address": "127.0.0.1",
    "port": 3306
  }
}

New and Load Source

Because a cli.Context is needed to retrieve the flags and their values, it is recommended to build your source from within a cli.Action.


func main() {
    // New Service
    service := micro.NewService(
        micro.Name("example"),
        micro.Flags(
            cli.StringFlag{
                Name: "database-address",
                Value: "127.0.0.1",
                Usage: "the db address",
            },
        ),
    )

    var clisrc source.Source

    service.Init(
        micro.Action(func(c *cli.Context) {
            clisrc = cli.NewSource(
                cli.Context(c),
	    )
            // Alternatively, just setup your config right here
        }),
    )

    // ... Load and use that source ...
    conf := config.NewConfig()
    conf.Load(clisrc)
}