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go-micro/config/source/cli
Mohamed MHAMDI 1db36357d5 feat(logger): add logger option to all micro components (override DefaultLogger) closes #2556 (#2559)
* feat(logger): add logger option to all components

* fix: refactor api/rpc.go

* fix: refactor api/stream.go

* fix: api/options.go comment

* fix(logger): do not use logger.Helper internally

* fix(logger): fix comments

* fix(logger): use level.Enabled method

* fix: rename mlogger to log

* fix: run go fmt

* fix: log level

* fix: factories

Co-authored-by: Mohamed MHAMDI <mmhamdi@hubside.com>
Co-authored-by: Davincible <david.brouwer.99@gmail.com>
2022-09-29 16:44:53 +02:00
..
2022-07-11 14:37:34 +01:00
2021-11-08 08:52:39 +00:00

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)
}