如何解决Elixir中的Google Firestore问题?

时间:2019-04-07 20:34:48

标签: google-cloud-platform google-cloud-firestore elixir

在致电GoogleApi.Firestore.V1beta1.Api.Projects.firestore_projects_databases_documents_run_query()时,我总是遇到问题,如下所示。

我已经尝试了不同的输入和格式设置方式以及不同的Firestore集合。

{:ok, token} = Goth.Token.for_scope("https://www.googleapis.com/auth/cloud-platform")

conn = GoogleApi.Firestore.V1beta1.Connection.new(token.token)

query = %GoogleApi.Firestore.V1beta1.Model.RunQueryRequest{
  structuredQuery: %{
    :from => %{:collectionId => "demo"},
    :limit => 1
  }
}

GoogleApi.Firestore.V1beta1.Api.Projects.firestore_projects_databases_documents_run_query(
  conn,
  "projects/demo/databases/(default)/documents",
  body: query
)

结果:

** (BadMapError) expected a map, got: [%{"readTime" => "2019-04-07T20:23:48.219664Z"}]
    (elixir) lib/map.ex:437: Map.get([%{"readTime" => "2019-04-07T20:23:48.219664Z"}], "document", nil)
    lib/poison/decoder.ex:53: anonymous fn/3 in Poison.Decode.transform_struct/4
    (stdlib) maps.erl:257: :maps.fold_1/3
    lib/poison/decoder.ex:52: Poison.Decode.transform_struct/4
    lib/poison.ex:70: Poison.decode/2

1 个答案:

答案 0 :(得分:1)

对于它的价值,我已经设法通过执行以下操作来加载文档:

{:ok, token} = Goth.Token.for_scope("https://www.googleapis.com/auth/datastore")
conn = GoogleApi.Firestore.V1.Connection.new(token.token)
{:ok, document} = GoogleApi.Firestore.V1.Api.Projects.firestore_projects_databases_documents_get(
  conn,
  "projects/{project_id}/databases/(default)/documents/{collection_id}/{document_id}"
)

其中变量{XXX}被替换为实际值。

也许不完全是您的用例,但是由于很难找到在Elixir中使用Firestore的示例,因此这可能对某人有用!