mapstriface

Overview ¶

Package mapstriface contains utilities for transforming map[string]interface{} objects into metricbeat events. For example, given this input object:

input := map[string]interface{}{
	"testString":       "hello",
	"testInt":          42,
	"testIntFromFloat": 42.0,
	"testIntFromInt64": int64(42),
	"testBool":         true,
	"testObj": map[string]interface{}{
		"testObjString": "hello, object",
	},
	"testNonNestedObj": "hello from top level",
}

And the requirement to transform it into this one:

common.MapStr{
	"test_string":         "hello",
	"test_int":            int64(42),
	"test_int_from_float": int64(42),
	"test_int_from_int64": int64(42),
	"test_bool":           true,
	"test_time":           common.Time(ts),
	"test_obj_1": common.MapStr{
		"test": "hello from top level",
	},
	"test_obj_2": common.MapStr{
		"test": "hello, object",
	},
}

It can be done with the following code:

schema := s.Schema{
	"test_string":         Str("testString"),
	"test_int":            Int("testInt"),
	"test_int_from_float": Int("testIntFromFloat"),
	"test_int_from_int64": Int("testIntFromInt64"),
	"test_bool":           Bool("testBool"),
	"test_time":           Time("testTime"),
	"test_obj_1": s.Object{
		"test": Str("testNonNestedObj"),
	},
	"test_obj_2": Dict("testObj", s.Schema{
		"test": Str("testObjString"),
	}),
}
output := schema.Apply(input)

Note that this allows for converting, renaming, and restructuring the data.