当我使用调用REST API而不重新启动Gatsby的Source插件时，如何在GatsbyJS中强制数据刷新? [英] How do I force a data refresh in GatsbyJS when I'm using a Source plugin that calls a REST API without restarting Gatsby?

问题描述

有可能吗?如何强制GatsbyJS重新加载外部数据?是通过禁用缓存还是限制缓存中的TTL?

Is it possible and how can I force GatsbyJS to reload external data? Either by disabling caching or limiting TTL in the cache?

我有一个运行gatsby develop的GatsbyJS，它将立即重新加载代码更改，但已使用源插件通过获取将其连接到外部REST API.一旦在构建时/首次加载时加载了GraphQL中的数据，就不会更新.

I have a GatsbyJS running gatsby develop and it will reload code changes immediately, but it's hooked up to an external REST API via fetch using a source plugin. The data in GraphQL doesn't update once the data is loaded at build time / first load.

我正在使用staticQuery(...)和非静态查询，两者的行为相同.我希望static不会更新，但是普通查询会触发一次并永远被缓存.

I'm using staticQuery(...) and non-static queries, both behave the same. I'd expect static to not update, but the normal query fires once and is forever cached.

来自gatsby-site/gatsby-node.js

From gatsby-site/gatsby-node.js

exports.createPages = async ({graphql, actions}) => {
    const pages = await graphql(`
         ...
    `);

问题我一直无法找到...的有用答案

Questions I've been unable to find useful answers to...

• 我可以使其完全不缓存吗?
• 我可以限制数据保留多长时间吗?
• 是在内存中，还是磁盘上有文件夹可以删除它?

所有有价值的帮助和想法.我找不到任何其他相关问题，甚至gatsbyjs.org上的教程都表明服务器会因数据更改而重新启动.

All help and ideas valuable. I couldn't find any other questions related, and even the tutorials on gatsbyjs.org indicate a server restart on data changes.

推荐答案

这有效，但可能无法扩展.

This works but probably doesn't scale.

1. 使用ENABLE_GATSBY_REFRESH_ENDPOINT=true gatsby develop启动Gatsby或将设置放入.env文件
2. 使用curl -X POST http://localhost:8000/__refresh调用完全刷新.
3. 或者，使其反复调用该钩子以使用watch -n5 "curl -X POST http://localhost:8000/__refresh"定期触发刷新(在这种情况下，每5秒一次，根据需要进行调整)，或将其放在crontab中，以进行较长时间的无人值守刷新.

1. Start Gatsby with ENABLE_GATSBY_REFRESH_ENDPOINT=true gatsby develop or put the setting in the .env file
2. Use curl -X POST http://localhost:8000/__refresh to invoke a full refresh.
3. Alternatively, make it repeatedly call the hook to trigger a refresh periodically with watch -n5 "curl -X POST http://localhost:8000/__refresh" (every 5 seconds in this case, tune as needed) or put it in a crontab for unattended refresh with longer intervals.

现在将反映对源数据的更改，但要以锤击源为代价.我只需要这个用于开发，而对于生产用途来说可能不是一个好主意.

Changes to source data will now be reflected, at the expense of hammering the source. I only needed this for development, and might not be a great idea for production use.

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