中继编译器可以从端点（http 或 https）读取模式吗？
[英]Can relay-compiler read the schema from an endpoint (http or https)?
问题描述
Relay's ahead-of-time compilation generates new compiled artifacts. 
Relay 的提前编译会生成新的编译工件。 To be able to do that, it's necessary to pass the GraphQL schema path to its config file.为此，必须将 GraphQL 模式路径传递给其配置文件。 My question is: can that path be a URL?我的问题是：那条路径可以是 URL 吗？ If not, what is the alternative way?如果不是，有什么替代方法？ The documentation is very vague about that.文档对此非常模糊。
Why do I need it to be a URL?为什么我需要它成为 URL？ My backend is in another service, so I have to find a way to access its schema.我的后端在另一个服务中，所以我必须找到一种方法来访问它的模式。 I was using the graphql get-schema command ─ which makes a local copy of the remote schema.我使用的是graphql get-schema命令——它会生成远程模式的本地副本。 But the get-schema command was deprecated in graphql-cli@4 .但是get-schema命令在graphql-cli@4中已被弃用。
get-schema is no longer available In previous versions, you were able to download the schema to the given path in schemaPath from >the URL given inside endpoint.
If you use Prisma or any other tool that provides your schema under URL endpoint, you must >specify it using the following syntax in your configuration YAML:
Source: https://github.com/Urigo/graphql-cli/blob/a8fc4bc6376205b2c6ee077cc0acfcef0712b470/docs/MIGRATION.md#get-schema-is-no-longer-available来源： https://github.com/Urigo/graphql-cli/blob/a8fc4bc6376205b2c6ee077cc0acfcef0712b470/docs/MIGRATION.md#get-schema-is-no-longer-available
Since then, I can't find a easy way to sync the remote schema with my front-end project.从那以后，我找不到一种简单的方法来将远程模式与我的前端项目同步。 Maybe the only alternative is to downgrade to graphql-cli@3 ?也许唯一的选择是降级到graphql-cli@3 ？
1 个解决方案
解决方案1
0 2021-01-08 11:18:38
It appears that relay-config , unlike graphql-config , does not accept a URL schema.与graphql-config不同， relay-config -config 似乎不接受 URL 模式。 It must be a local path.它必须是本地路径。
So, you have to keep using a local schema.因此，您必须继续使用本地模式。 The graphql-cli@4 migration guide explains how to download the schema since this functionality is not in the core of the package anymore: graphql-cli@4迁移指南解释了如何下载模式，因为此功能不再是 package 的核心：
If you want to download the schema from this URL to your local file system, you will also need to install
codegenplugin and itsschema-astplugin using the following command or its npm equivalent:codegen插件及其schema-ast插件：yarn add @graphql-cli/codegen @graphql-codegen/schema-ast --devAfter that, you can specify the output path of the local schema file:
schema: http://localhost:4000/graphql extensions: codegen: generates: ./schema.graphql: plugins: - schema-astBy running graphql codegen, the schema.graphql file is generated in the root path of your project.
Source: https://github.com/Urigo/graphql-cli/blob/a8fc4bc6376205b2c6ee077cc0acfcef0712b470/docs/MIGRATION.md#get-schema-is-no-longer-available来源： https://github.com/Urigo/graphql-cli/blob/a8fc4bc6376205b2c6ee077cc0acfcef0712b470/docs/MIGRATION.md#get-schema-is-no-longer-available
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