使用回调端点验证翻译请求

通过支持等待 HTTP 请求到达回调端点来验证翻译请求，以便在稍后的某个时间点继续执行工作流。

深入探索

如需查看包含此代码示例的详细文档，请参阅以下内容：

• 使用回调创建人机协同 (human-in-the-loop) 工作流

代码示例

YAML

main:
    params: [translation_request]
    steps:
        - log_request:
            call: sys.log
            args:
                text: ${translation_request}
        - vars:
            assign:
                - exec_id: ${sys.get_env("GOOGLE_CLOUD_WORKFLOW_EXECUTION_ID")}
                - text_to_translate: ${translation_request.text}
                - database_root: ${"projects/" + sys.get_env("GOOGLE_CLOUD_PROJECT_ID") + "/databases/(default)/documents/translations/"}
        - log_translation_request:
            call: sys.log
            args:
                text: ${text_to_translate}

        - store_translation_request:
            call: googleapis.firestore.v1.projects.databases.documents.patch
            args:
                name: ${database_root + exec_id}
                updateMask:
                    fieldPaths: ['text']
                body:
                    fields:
                        text:
                            stringValue: ${text_to_translate}
            result: store_translation_request_result

        - translate:
            call: googleapis.translate.v2.translations.translate
            args:
                query:
                    q: ${text_to_translate}
                    target: "FR"
                    format: "text"
                    source: "EN"
            result: translation_result
        - assign_translation:
            assign:
                - translation: ${translation_result.data.translations[0].translatedText} 
        - log_translation_result:
            call: sys.log
            args:
                text: ${translation}

        - store_translated_text:
            call: googleapis.firestore.v1.projects.databases.documents.patch
            args:
                name: ${database_root + exec_id}
                updateMask:
                    fieldPaths: ['translation']
                body:
                    fields:
                        translation:
                            stringValue: ${translation}
            result: store_translation_request_result   

        - create_callback:
            call: events.create_callback_endpoint
            args:
                http_callback_method: "POST"
            result: callback_details
        - log_callback_details:
            call: sys.log
            args:
                text: ${callback_details}

        - store_callback_details:
            call: googleapis.firestore.v1.projects.databases.documents.patch
            args:
                name: ${database_root + exec_id}
                updateMask:
                    fieldPaths: ['callback']
                body:
                    fields:
                        callback:
                            stringValue: ${callback_details.url}
            result: store_callback_details_result

        - await_callback:
            call: events.await_callback
            args:
                callback: ${callback_details}
                timeout: 3600
            result: callback_request
        - assign_approval:
            assign:
                - approved: ${callback_request.http_request.body.approved}

        - store_approval:
            call: googleapis.firestore.v1.projects.databases.documents.patch
            args:
                name: ${database_root + exec_id}
                updateMask:
                    fieldPaths: ['approved']
                body:
                    fields:
                        approved:
                            booleanValue: ${approved}
            result: store_approval_result

        - return_outcome:
            return:
                text: ${text_to_translate}
                translation: ${translation}
                approved: ${approved}

后续步骤

如需搜索和过滤其他 Google Cloud 产品的代码示例，请参阅 Google Cloud 示例浏览器。