删除集合firestore:go

import (
    "context"
    "cloud.google.com/go/firestore"
    "google.golang.org/api/iterator"
)

ctx := context.Background()
client, err := firestore.NewClient(ctx, "your-project-id")
if err != nil {
    // 处理错误
}
defer client.Close()

batchSize := 100
collectionRef := client.Collection("your-collection")
docsToDelete := make([]firestore.DocumentRef, 0)

iter := collectionRef.Documents(ctx)
for {
    doc, err := iter.Next()
    if err == iterator.Done {
        break
    }
    if err != nil {
        // 处理错误
    }
    docsToDelete = append(docsToDelete, doc.Ref)

    if len(docsToDelete) >= batchSize {
        batch := client.Batch()
        for _, docRef := range docsToDelete {
            batch.Delete(docRef)
        }
        _, err := batch.Commit(ctx)
        if err != nil {
            // 处理错误
        }
        docsToDelete = make([]firestore.DocumentRef, 0)
    }
}

if len(docsToDelete) > 0 {
    batch := client.Batch()
    for _, docRef := range docsToDelete {
        batch.Delete(docRef)
    }
    _, err := batch.Commit(ctx)
    if err != nil {
        // 处理错误
    }
}