38 lines
1.3 KiB
TypeScript
38 lines
1.3 KiB
TypeScript
// GraphQL 上下文构建（B1 裁决：P2 起直接 GraphQL）
|
||
// 从 Express 请求提取 userId / traceId，注入下游 CallContext
|
||
import type { Request } from "express";
|
||
import type { CallContext } from "../clients/types.js";
|
||
import { UnauthorizedError } from "../shared/errors/application-error.js";
|
||
|
||
export interface GraphQLOperationContext {
|
||
/** 当前请求的 CallContext（注入下游 gRPC 调用） */
|
||
callCtx: CallContext;
|
||
}
|
||
|
||
/**
|
||
* 从 Express 请求构建 GraphQL 上下文
|
||
* P2: 从 x-user-id header 提取 userId（api-gateway 注入）
|
||
* P3+: 从 JWT 提取（api-gateway 校验后注入 x-user-id + x-user-roles）
|
||
*/
|
||
export function buildGraphQLContext(req: Request): GraphQLOperationContext {
|
||
const userIdHeader = req.headers["x-user-id"];
|
||
const userId = typeof userIdHeader === "string" ? userIdHeader : undefined;
|
||
if (!userId) {
|
||
throw new UnauthorizedError("Missing x-user-id header");
|
||
}
|
||
|
||
const requestIdHeader = req.headers["x-request-id"];
|
||
const traceId =
|
||
typeof requestIdHeader === "string" ? requestIdHeader : undefined;
|
||
|
||
const rolesHeader = req.headers["x-user-roles"];
|
||
const roles =
|
||
typeof rolesHeader === "string"
|
||
? rolesHeader.split(",").filter(Boolean)
|
||
: undefined;
|
||
|
||
return {
|
||
callCtx: { userId, traceId, roles },
|
||
};
|
||
}
|