ChatGPTを使ってMasterStudy LMSのコースとレッスンにYoast SEOメタデータを作成する

ChatGPT を使って、MasterStudy LMS のコースとレッスンのSEOメタデータを自動生成・更新し、そのメタデータを Yoast SEO に保存することができます。これらすべてを、単一の Gato GraphQL クエリで実行できます。

このデモでは、GraphQLを使って以下を行います：

MasterStudy LMSからコースまたはレッスンのデータを取得する
ChatGPTを呼び出して、コースまたはレッスンのデータに基づいてSEOメタデータを生成する
そのコースまたはレッスンのYoast SEOメタデータを更新する

以下の変数を指定する必要があります：

courseOrLessonId: 更新するMasterStudy LMSのコースまたはレッスンのID
openAIAPIKey: OpenAI APIのAPIキー

また、必要なカスタム投稿タイプのデータへのアクセスを有効にする必要があります：stm-courses および stm-lessons。

GraphQLクエリは以下のとおりです：

query GetCourseOrLessonData($courseOrLessonId: ID!) {
  courseOrLesson: customPost(by: { id: $courseOrLessonId }, customPostTypes: ["stm-courses", "stm-lessons"]) {
    id
    ...on CustomPost {
      title
        @export(as: "title")
      content
        @export(as: "content")
    }
    ...WithMetaData
  }
}
 
query GenerateCourseSEOWithChatGPT(
  $openAIAPIKey: String!
  $systemMessage: String! = "You are an SEO specialist"
  $promptTemplate: String! = """
I'm working on creating the SEO metadata for courses and lessons in my Learning Management System.
 
Please evaluate the course or lesson data, and generate the following SEO metadata:
 
- Title
- Excerpt
- Focus Keyword
- Open Graph Title
- Open Graph Description
- Twitter Title
- Twitter Description
 
The data is:
 
- Title: {$title}
- Content: {$content}
"""
  $model: String! = "gpt-4o-mini"
)
  @depends(on: "GetCourseOrLessonData")
{
  prompt: _strReplaceMultiple(
    search: ["{$title}", "{$content}"],
    replaceWith: [$title, $content],
    in: $promptTemplate
  )
  openAIResponse: _sendJSONObjectItemHTTPRequest(input: {
    url: "https://api.openai.com/v1/chat/completions",
    method: POST,
    options: {
      auth: {
        password: $openAIAPIKey
      },
      json: {
        model: $model,
        messages: [
          {
            role: "system",
            content: $systemMessage
          },
          {
            role: "user",
            content: $__prompt
          },
        ],
        response_format: {
          type: "json_schema",
          json_schema: {
            name: "seo_metadata_response",
            strict: true,
            schema: {
              type: "object",
              properties: {
                seoMetadata: {
                  type: "object",
                  properties: {
                    title: {
                      type: "string"
                    },
                    excerpt: {
                      type: "string"
                    },
                    focusKeyword: {
                      type: "string"
                    },
                    openGraphTitle: {
                      type: "string"
                    },
                    openGraphDescription: {
                      type: "string"
                    },
                    twitterTitle: {
                      type: "string"
                    },
                    twitterDescription: {
                      type: "string"
                    }
                  },
                  required: ["title", "excerpt", "focusKeyword", "openGraphTitle", "openGraphDescription", "twitterTitle", "twitterDescription"],
                  additionalProperties: false
                }
              },
              required: ["seoMetadata"],
              additionalProperties: false
            }
          }
        }
      }
    }
  })
    @underJSONObjectProperty(by: { key: "choices" })
      @underArrayItem(index: 0)
        @underJSONObjectProperty(by: { path: "message.content" })
          @export(as: "jsonEncodedSeoMetadataResponse")
}
 
query ExtractSeoMetadata
  @depends(on: "GenerateCourseSEOWithChatGPT")
{
  decodedSeoMetadataResponse: _strDecodeJSONObject(string: $jsonEncodedSeoMetadataResponse)
    @underJSONObjectProperty(by: { path: "seoMetadata" })
      @export(as: "seoMetadata")
}
 
mutation GenerateSeoMetadataAndUpdateYoast(
  $courseOrLessonId: ID!
)
  @depends(on: "ExtractSeoMetadata")
{
  seoMetadataTitle: _objectProperty(
    object: $seoMetadata,
    by: { key: "title" }
  )
  seoMetadataExcerpt: _objectProperty(
    object: $seoMetadata,
    by: { key: "excerpt" }
  )
  seoMetadataFocusKeyword: _objectProperty(
    object: $seoMetadata,
    by: { key: "focusKeyword" }
  )
  seoMetadataOpenGraphTitle: _objectProperty(
    object: $seoMetadata,
    by: { key: "openGraphTitle" }
  )
  seoMetadataOpenGraphDescription: _objectProperty(
    object: $seoMetadata,
    by: { key: "openGraphDescription" }
  )
  seoMetadataTwitterTitle: _objectProperty(
    object: $seoMetadata,
    by: { key: "twitterTitle" }
  )
  seoMetadataTwitterDescription: _objectProperty(
    object: $seoMetadata,
    by: { key: "twitterDescription" }
  )
 
  updateCustomPostMetas(inputs: [
    { id: $courseOrLessonId, key: "_yoast_wpseo_title", value: $__seoMetadataTitle },
    { id: $courseOrLessonId, key: "_yoast_wpseo_metadesc", value: $__seoMetadataExcerpt },
    { id: $courseOrLessonId, key: "_yoast_wpseo_focuskw", value: $__seoMetadataFocusKeyword },
    { id: $courseOrLessonId, key: "_yoast_wpseo_opengraph-title", value: $__seoMetadataOpenGraphTitle },
    { id: $courseOrLessonId, key: "_yoast_wpseo_opengraph-description", value: $__seoMetadataOpenGraphDescription },
    { id: $courseOrLessonId, key: "_yoast_wpseo_twitter-title", value: $__seoMetadataTwitterTitle },
    { id: $courseOrLessonId, key: "_yoast_wpseo_twitter-description", value: $__seoMetadataTwitterDescription }
  ]) {
    status
    errors {
      __typename
      ...on ErrorPayload {
        message
      }
    }
  }
}
 
query GenerateAndUpdateCourseOrLessonSeoMetadataAndCheckResults($courseOrLessonId: ID!)
  @depends(on: "GenerateSeoMetadataAndUpdateYoast")
{
  courseOrLessonResults: customPost(by: { id: $courseOrLessonId }, customPostTypes: ["stm-courses", "stm-lessons"]) {
    id
    ...WithMetaData
  }
}
 
fragment WithMetaData on WithMeta {
  metaTitle: metaValue(key: "_yoast_wpseo_title")
  metaDesc: metaValue(key: "_yoast_wpseo_metadesc")
  focusKeyword: metaValue(key: "_yoast_wpseo_focuskw")
  socialFBTitle: metaValue(key: "_yoast_wpseo_opengraph-title")
  socialFBDesc: metaValue(key: "_yoast_wpseo_opengraph-description")
  socialTwitterTitle: metaValue(key: "_yoast_wpseo_twitter-title")
  socialTwitterDesc: metaValue(key: "_yoast_wpseo_twitter-description")
}

変数は次のようになります：

{
  "courseOrLessonId": "123",
  "openAIAPIKey": "sk-..."
}

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