ekuiper-new/sdk/go/example/mirror/functions/echo.json

{
	"about": {
		"trial": false,
		"author": {
			"name": "EMQ",
			"email": "contact@emqx.io",
			"company": "EMQ Technologies Co., Ltd",
			"website": "https://www.emqx.io"
		},
		"helpUrl": {
			"en_US": "https://ekuiper.org/docs/en/latest/sqls/custom_functions.html",
			"zh_CN": "https://ekuiper.org/docs/zh/latest/sqls/custom_functions.html"
		},
		"description": {
			"en_US": "",
			"zh_CN": ""
		}
	},
	"name": "echo",
	"functions": [
		{
			"name": "echo",
			"example": "echo(col1)",
			"hint": {
				"en_US": "The parameter value is output as it is.",
				"zh_CN": "原样输出参数值。"
			},
			"args": [
				{
					"name": "field",
					"optional": false,
					"control": "field",
					"type": "string",
					"hint": {
						"en_US": "The field to echo.",
						"zh_CN": "字段名"
					},
					"label": {
						"en_US": "Field",
						"zh_CN": "字段"
					}
				}
			],
			"return": {
				"type": "string",
				"hint": {
					"en_US": "Echoed string",
					"zh_CN": "回声值"
				}
			},
			"node": {
				"category": "function",
				"icon": "iconPath",
				"label": {
					"en_US": "Echo",
					"zh_CN": "回声"
				}
			}
		}]
}