这是GoLang,Firebase AdminSDK问题。
此示例适用于遍历FireStore数据库中的所有文档。
如何获取文档名称?
换句话说:如果集合名称为JohnyCollection
,并且JohnyCollection
有20个称为(Document1
,Document2
.... Document20
),如何在golang代码中获取文档名称?
// =====================================
package main
import (
"context"
"fmt"
"log"
"firebase.google.com/go"
"google.golang.org/api/iterator"
"google.golang.org/api/option"
)
func check(e error) {
if e != nil {
panic(e)
}
}
func main() {
ctx := context.Background()
sa := option.WithCredentialsFile("./scai-qit-fb-adminsdk.json")
app, err := firebase.NewApp(ctx, nil, sa)
if err != nil {
log.Fatalf("error initializing app: %v\n", err)
}
client, err := app.Firestore(ctx)
if err != nil {
log.Fatal(err)
}
defer client.Close()
iter := client.Collection("COMPLEX_NONACS").Documents(ctx)
for {
doc, err := iter.Next()
if err == iterator.Done {
break
}
if err != nil {
log.Fatalf("Failed to iterate: %v", err)
}
//This part works. WIll return a Map of each Document
fmt.Println("--------------------------/n")
fmt.Println(doc.Data())
// This is the question. How do I get the INDEX name of the Document?
// something like...
fmt.Println(doc.Index_value_or_something_that_returns_IndexName())
// for example...
// {
// "ABC":{"line1":"yabba dabba","line2":"dingo dong"},
// "DEF":{"line1":"hooty tooty","line2":"blah blah"}
// }
// How to just get the "ABC" and "DEF"
}
}
答案 0 :(得分:1)
您可以通过先查找DocumentSnapshot
来从DocumentRef
获取文档ID:
fmt.Println(doc.Ref.ID)
有关DocumentSnapshot
和DocumentRef
的参考文档。