Esportare un articolo verso un altro sito WordPress

Questa query esporta un articolo da questo sito WordPress verso un sito WordPress downstream.

Il plugin Gato GraphQL (versione gratuita) deve essere installato sul sito web downstream. Deve esporre un endpoint con "Nested mutations" abilitato.

Il parametro $update indica se creare o aggiornare un articolo sul sito downstream.

Se si aggiorna l'articolo, l'identificatore comune tra il sito upstream e quello downstream è lo slug dell'articolo.

query CheckHasPost($postSlug: String!)
{
  post(by: { slug: $postSlug }, status: any)
    @fail(
      message: "There is no post in the upstream site with the provided slug"
      data: {
        slug: $postSlug
      }
    )
  {
    rawTitle
      @export(as: "postTitle")
    rawContent
      @export(as: "postContent")
  }
 
  isMissingPostInUpstream: _isNull(value: $__post)
    @export(as: "isMissingPostInUpstream")
}
 
query ExportDownstreamGraphQLQuery
  @depends(on: "CheckHasPost")
  @skip(if: $isMissingPostInUpstream)
{
  query: _echo(value: """
 
mutation LoginUserAndUpdatePost(
  $update: Boolean! = false
  $username: String!
  $userPassword: String!
  $postSlug: String!
  $postTitle: String!
  $postContent: String!
) {
  loginUser(by: {
    credentials: {
      usernameOrEmail: $username,
      password: $userPassword
    }
  }) {
    userID
  }
 
  post(by: { slug: $postSlug }, status: any)
    @include(if: $update)
  {
    update(input: {
      title: $postTitle,
      contentAs: { html: $postContent },
    }) {
      status
      errors {
        __typename
        ...on ErrorPayload {
          message
        }
      }
      post {
        title
        slug
        content
        status
      }
    }
  }
 
  createPost(input: {
    title: $postTitle,
    slug: $postSlug,
    contentAs: { html: $postContent },
    status: draft
  })
    @skip(if: $update)
  {
    status
    errors {
      __typename
      ...on ErrorPayload {
        message
      }
    }
    post {
      title
      slug
      content
      status
    }
  }
}
 
    """
  )
    @export(as: "query")
    @remove
}
 
query ExportPostToWPSite(
  $downstreamServerGraphQLEndpointURL: String!
  $update: Boolean! = false
  $username: String!
  $userPassword: String!
  $postSlug: String!
)
  @depends(on: "ExportDownstreamGraphQLQuery")
  @skip(if: $isMissingPostInUpstream)
{
  _sendGraphQLHTTPRequest(
    input: {
      endpoint: $downstreamServerGraphQLEndpointURL,
      query: $query,
      variables: [
        {
          name: "update",
          value: $update
        },
        {
          name: "username",
          value: $username
        },
        {
          name: "userPassword",
          value: $userPassword
        },
        {
          name: "postSlug",
          value: $postSlug
        },
        {
          name: "postTitle",
          value: $postTitle
        },
        {
          name: "postContent",
          value: $postContent
        }
      ]
    }
  )
}