githubgraphqlapi，"clientMutationId"是什么意思？

Question

我在 example-strong-typing 文档中看到 clientMutationId 字段。

mutation {
  addComment(input:{clientMutationId: 1234, subjectId: "MDA6SXNzdWUyMjcyMDA2MTT=", body: "Looks good to me!"}) {
    clientMutationId
    commentEdge {
      node {
        body
        repository {
          id
          name
          nameWithOwner
        }
        issue {
          number
        }
      }
    }
  }
}

clientMutationId 是什么意思？我怎样才能生成它？

Answer 1

clientMutationId 与 GraphQL 没有直接关系，但它与 graphql-relay.

检查 Understanding Relay Mutations 以获得更好的解释。

clientMutationId. This ID is generated by the Relay client behind the scenes to track the mutation's progress.