gatsby-node.js

exports.sourceNodes = async (gatsbyAPI, pluginOptions) => {
  const config = await createSourcingConfig(gatsbyApi)
  const { webhookBody } = gatsbyAPI
  
  if (webhookBody && Object.keys(webhookBody).length) {
    const { isDelete, typeName, id } = webhookBody
    const nodeEvent = isDelete
      ? {
        eventName: "DELETE",
        remoteTypeName: typeName,
        remoteId: { __typename: typeName, id },
      }
      : {
        eventName: "UPDATE",
        remoteTypeName: typeName,
        remoteId: { __typename: typeName, id },
      }
    await sourceNodeChanges(config, { nodeEvents: [nodeEvent] })
  } else {
    // Normal full sourcing
  }
}