google-cloud-platform - 使用来自上一步的 Json 对象的云工作流 firestore 连接器在 Firestore 中插入数据时出现问题，这是一个云函数

Question

我正在尝试构建一个工作流，在第 1 步中我运行一个云函数，该函数以 python 字典的形式返回一个 Json 对象，我希望使用 firestore 连接器将其插入到 Firestore 中。但我收到以下错误:

    HTTP server responded with error code 400
    in step "create_document", routine "main", line: 27
    HTTP server responded with error code 400
    in step "create_document", routine "main", line: 28
    {
      "body": {
        "error": {
          "code": 400,
          "details": [
            {
              "@type": "type.googleapis.com/google.rpc.BadRequest",
              "fieldViolations": [
                {
                  "description": "Invalid JSON payload received. Unknown name \"field1\" at 'document.fields[0].value': Cannot find field.",
                  "field": "document.fields[0].value"
                },
                {
                  "description": "Invalid value at 'document.fields[1].value' (type.googleapis.com/google.firestore.v1.Value), 200",
                  "field": "document.fields[1].value"
                },
                {
                  "description": "Invalid JSON payload received. Unknown name \"Alt-Svc\" at 'document.fields[2].value': Cannot find field.",
                  "field": "document.fields[2].value"
                },
                {
                  "description": "Invalid JSON payload received. Unknown name \"Cache-Control\" at 'document.fields[2].value': Cannot find field.",
                  "field": "document.fields[2].value"
                },
                {
                  "description": "Invalid JSON payload received. Unknown name \"Content-Length\" at 'document.fields[2].value': Cannot find field.",
                  "field": "document.fields[2].value"
                },
                {
                  "description": "Invalid JSON payload received. Unknown name \"Content-Type\" at 'document.fields[2].value': Cannot find field.",
                  "field": "document.fields[2].value"
                },
                {
                  "description": "Invalid JSON payload received. Unknown name \"Date\" at 'document.fields[2].value': Cannot find field.",
                  "field": "document.fields[2].value"
                } 

我的工作流程是这样的

main:
    params: [args]
    steps:
        - step1:
            call: http.get
            args:
                url: https://XXXXXXXXXXXXX.cloudfunctions.net/step1-workflow
                query:
                    bucket_name: ${args.bucket_name}
                    blob_name: ${args.blob_name}
            result: key_val
        - step2:
            assign:
                - project_id: ${sys.get_env("GOOGLE_CLOUD_PROJECT_ID")}
                - collection: "a-dummy-collection"
                - document: "new7-dummy-document"
        - create_document:
            call: googleapis.firestore.v1.projects.databases.documents.createDocument
            args:
                collectionId: ${collection}
                parent: ${"projects/" + project_id + "/databases/(default)/documents"}
                query: 
                    documentId: ${document}
                body: 
                    fields: ${key_val}
            result: inserted

如果代替 ${key_val} 我使用简单的 json {"field1": {"stringValue": "str1"},"field2": {"integerValue": 10}} 它工作正常并且数据被插入Firestore 但如果我尝试使用变量 ${key_val} 中的对象，它与提到的 json 具有相同的结构，则会出错。

Answer 1

评论中给出的答案:调用云函数的${key_val}<​​结果实际上是返回整个响应对象，而不仅仅是响应体。这就是为什么在错误消息中，您会看到诸如 content-type 和其他 header 之类的内容。

这里的解决方案是说我们想要该响应的主体:${key_val.body}。