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larksuite-cli/shortcuts/apps/apps_db_table_get.go

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// Copyright (c) 2026 Lark Technologies Pte. Ltd.
// SPDX-License-Identifier: MIT
package apps
import (
"context"
"io"
"strings"
"github.com/larksuite/cli/shortcuts/common"
)
const dbTableGetHint = "verify --app-id and --table are correct; list tables with `lark-cli apps +db-table-list --app-id <app_id>`; if targeting --env dev, create it first with `lark-cli apps +db-env-create --app-id <app_id> --env dev`"
// AppsDBTableGet gets one table's structure (动词对齐 +db-table-list)。
//
// GET /apps/{app_id}/tables/{table_name}。
//
// `--format` 同时驱动 CLI 渲染和 server 请求形态:
// - `--format json`(默认)/ table / ndjson / csvCLI 不传 format queryresponse 含结构化
// columns / indexes / constraints / statsenvelope 化输出。
// - `--format pretty`CLI 给 server 带 ?format=ddlresponse 含 ddl 字符串stdout 直接打
// ddl 内容(无 envelope / 无表格包装)。
var AppsDBTableGet = common.Shortcut{
Service: appsService,
Command: "+db-table-get",
Description: "Get a table's structure: columns, indexes and constraints",
Risk: "read",
Tips: []string{
"Example: lark-cli apps +db-table-get --app-id <app_id> --table <table>",
"Tip: filter fields with --jq (json format), e.g. -q '.data.columns[].name'",
},
Scopes: []string{"spark:app:read"},
AuthTypes: []string{"user"},
HasFormat: true,
Flags: []common.Flag{
{Name: "app-id", Desc: "Miaoda app id", Required: true},
{Name: "table", Desc: "table name", Required: true},
{Name: "env", Default: "online", Enum: []string{"dev", "online"}, Desc: "target db environment"},
},
Validate: func(ctx context.Context, rctx *common.RuntimeContext) error {
if _, err := requireAppID(rctx.Str("app-id")); err != nil {
return err
}
if strings.TrimSpace(rctx.Str("table")) == "" {
return appsValidationParamError("--table", "--table is required")
}
return nil
},
DryRun: func(ctx context.Context, rctx *common.RuntimeContext) *common.DryRunAPI {
appID, _ := requireAppID(rctx.Str("app-id"))
return common.NewDryRunAPI().
GET(appTablePath(appID, strings.TrimSpace(rctx.Str("table")))).
Desc("Get Miaoda app db table schema").
Params(buildDBTableGetParams(rctx))
},
Execute: func(ctx context.Context, rctx *common.RuntimeContext) error {
appID, err := requireAppID(rctx.Str("app-id"))
if err != nil {
return err
}
path := appTablePath(appID, strings.TrimSpace(rctx.Str("table")))
data, err := rctx.CallAPITyped("GET", path, buildDBTableGetParams(rctx), nil)
if err != nil {
return withAppsHint(err, dbTableGetHint)
}
rctx.OutFormat(data, nil, func(w io.Writer) {
// pretty 模式stdout 直接打 ddl 文本(无 trailing newline由 server 返回的字符串决定)。
io.WriteString(w, common.GetString(data, "ddl"))
})
return nil
},
}
// buildDBTableGetParams 构造 schema 接口的 query。
//
// CLI 检测 rctx.Format == "pretty" 时给 server 带 format=ddl要求返 CREATE 语句文本;
// 其他 format含默认 json不传该参数让 server 返默认结构化字段。
func buildDBTableGetParams(rctx *common.RuntimeContext) map[string]interface{} {
params := map[string]interface{}{"env": rctx.Str("env")}
if rctx.Format == "pretty" {
params["format"] = "ddl"
}
return params
}