开始

首先说明typed-rx-http Core客户端本身的用法，然后说明在需要的项目中如何连接项目拥有的公共HTTP适配器和Swagger自动生成服务。

1. 安装

bash
npm install @byeolnaerim/typed-rx-http rxjs

2. 直接使用 Core client，无需自动生成

首先，最基本的用法是 createHttpClient<Paths>()先创建一次 client，然后调用该 client 的 callApi。Paths 通常是 OpenAPI 生成的 paths 类型，但也可以使用与之兼容的自定义类型。

httpClient.ts
ts
import {
  createHeaderStore,
  createHttpClient,
} from "@byeolnaerim/typed-rx-http";
import type { paths } from "./@types/ApiTypes";

export const headerStore = createHeaderStore({
  "Content-Type": "application/json",
});

export const client = createHttpClient<paths>({
  baseUrl: process.env.NEXT_PUBLIC_API_URL || "",
  headerStore,
});

3. 选择：rxjsHttpService/commonService是什么

文档中称为rxjsHttpService.ts或commonService.ts的文件并不是库自动生成的固定文件名，而是项目直接拥有的HTTP适配器文件。多个自动生成的REST服务不需要各自创建createHttpClient，而是使用此文件导出的callApi/callApiStream/cache函数作为公共入口点。

最简单的形式是像下面的完整代码一样，创建headerStore和createHttpClient一次，并将库的方法重新导出为项目函数。如果自动生成的服务不使用缓存功能，仅凭这一配置就能理解结构。

rxjsHttpService.ts
ts
import {
	createHeaderStore,
	createHttpClient,
	type ServiceArguments,
} from "@byeolnaerim/typed-rx-http";
import type { Observable } from "rxjs";

import type { paths } from "./@types/ApiTypes";

export const headerStore = createHeaderStore({
	"Content-Type": "application/json",
});

export const service = createHttpClient<paths>({
	baseUrl: process.env.NEXT_PUBLIC_API_URL || "",
	headerStore,
});

export const callApi = <
	R,
	TPath extends keyof paths = keyof paths,
	TMethod extends keyof paths[TPath] & string = keyof paths[TPath] & string,
>(
	serviceArguments: ServiceArguments<paths, TPath, TMethod, R>,
): Observable<R> => {
	return service.callApi<R, TPath, TMethod>(serviceArguments);
};

export const callApiStream = <
	R,
	TPath extends keyof paths = keyof paths,
	TMethod extends keyof paths[TPath] & string = keyof paths[TPath] & string,
>(
	serviceArguments: ServiceArguments<paths, TPath, TMethod, R>,
): Observable<R> => {
	return service.callApiStream<R, TPath, TMethod>(serviceArguments);
};

export const uploadFile = service.uploadFile;
export const createSSEObservable = service.createSSEObservable;

在实际的Next.js项目中，要在一个文件中共同处理会话认证、SSR请求的Cookie/Authorization、CSR缓存和SSR缓存，可以扩展如下。这文件也不是自动生成的，而是项目代码。

rxjsHttpService.ts
ts
import {
	createCsrCache,
	createHeaderStore,
	createHttpClient,
	createSessionAuth,
} from "@byeolnaerim/typed-rx-http";

import type {
	CacheForService,
	ServiceArguments,
} from "@byeolnaerim/typed-rx-http";

import { defer, Observable } from "rxjs";

import { setLogin } from "@ui/handler/hooks/useAccounts";

import type { paths } from "./@types/ApiTypes";

import type { CacheNames } from "./@types/CacheNames";

export const redirectToUnauthorizedOnServer401 = async () => {
	const { headers } = await import("next/headers");
	const { redirect } = await import("next/navigation");

	const h = await headers();
	const pageUrl = h.get("x-page-url") || "/";
	const redirectUri = encodeURIComponent(pageUrl);

	redirect(`/unauthorized?redirect_uri=${redirectUri}&logout=true`);
};

export const headerStore = createHeaderStore({
	"Content-Type": "application/json",
});

const headersProvider = async () => {
	if (typeof window !== "undefined") {
		/**
		 * 라이브러리쪽 코드가
		 * if (headersProvider) return headersProvider();
		 * if (headerStore) return headerStore.get();
		 * 이렇게 되어있음 같이 못씀, 방향자체는 맞음. 라이브러리쪽에서 marge해버리면 csr/ssr 구분못함
		 */
		return headerStore.get();
	}

	const { cookies } = await import("next/headers");

	const cookieStore = await cookies();
	const cookieHeader = cookieStore
		.getAll()
		.map((c) => `${c.name}=${c.value}`)
		.join("; ");

	const authorization = cookieStore.get("Authorization")?.value;
	const accessToken = cookieStore.get("accessToken")?.value;

	return {
		...(cookieHeader ? { Cookie: cookieHeader } : {}),
		...(authorization
			? {
					Authorization: authorization.startsWith("Bearer ")
						? authorization
						: `Bearer ${authorization}`,
				}
			: {}),
		...(!authorization && accessToken
			? {
					Authorization: accessToken.startsWith("Bearer ")
						? accessToken
						: `Bearer ${accessToken}`,
				}
			: {}),
	};
};

export const service = createHttpClient<paths>({
	baseUrl: process.env.NEXT_PUBLIC_API_URL || "",
	onServer401: redirectToUnauthorizedOnServer401,
	defaultErrorMessage: () => {
		return "알 수 없는 오류가 발생했습니다.";
	},
	headerStore,
	headersProvider,
	dropAuthWhenCacheControl: true,
});

const sessionAuth = createSessionAuth({
	headerStore,
	tokenUrl: "/api/auth/token",
	refreshUrl: "/api/auth/token/refresh",
	logoutUrl: "/api/auth/logout",
	onLoginChange: (loggedIn) => {
		if (typeof window !== "undefined") {
			setLogin(loggedIn);
		}
	},
});

export const callApi = <
	R,
	TPath extends keyof paths = keyof paths,
	TMethod extends keyof paths[TPath] & string = keyof paths[TPath] & string,
>(
	serviceArguments: ServiceArguments<paths, TPath, TMethod, R>,
): Observable<R> => {
	return defer(() =>
		service.callApi<R, TPath, TMethod>(serviceArguments),
	).pipe(sessionAuth.withSessionAuth());
};

export const callApiStream = <
	R,
	TPath extends keyof paths = keyof paths,
	TMethod extends keyof paths[TPath] & string = keyof paths[TPath] & string,
>(
	serviceArguments: ServiceArguments<paths, TPath, TMethod, R>,
): Observable<R> => {
	return defer(() =>
		service.callApiStream<R, TPath, TMethod>(serviceArguments),
	).pipe(sessionAuth.withSessionAuth());
};

// CSR cache
const csrCache = createCsrCache<CacheNames>();

export const callApiClientCache = <
	R,
	TPath extends keyof paths = keyof paths,
	TMethod extends keyof paths[TPath] & string = keyof paths[TPath] & string,
>(
	serviceArguments: ServiceArguments<paths, TPath, TMethod, R>,
	cacheForService: CacheForService<CacheNames>,
): Observable<R> => {
	return csrCache.callApiCsrCache(callApi, serviceArguments, cacheForService);
};

export const removeCsrCache = csrCache.removeCsrCache;

export const callApiServerCache = <
	R,
	TPath extends keyof paths = keyof paths,
	TMethod extends keyof paths[TPath] & string = keyof paths[TPath] & string,
>(
	serviceArguments: ServiceArguments<paths, TPath, TMethod, R>,
	cacheForService: CacheForService<CacheNames>,
): Observable<R> => {
	if (typeof window !== "undefined") {
		return callApiClientCache(serviceArguments, cacheForService);
	}

	return new Observable<R>((subscriber) => {
		let closed = false;

		import("@byeolnaerim/typed-rx-http/next")
			.then(({ callApiSsrCache }) => {
				if (closed) {
					return;
				}

				const subscription = callApiSsrCache<paths, R, CacheNames>({
					baseUrl: process.env.NEXT_PUBLIC_API_URL || "",
					serviceArguments: serviceArguments as ServiceArguments<
						paths,
						keyof paths,
						keyof paths[keyof paths] & string,
						R
					>,
					cacheForService,
					headersProvider,
					onServer401: redirectToUnauthorizedOnServer401,
				}).subscribe(subscriber);

				subscriber.add(() => {
					closed = true;
					subscription.unsubscribe();
				});
			})
			.catch((error) => {
				if (!closed) {
					subscriber.error(error);
				}
			});

		return () => {
			closed = true;
		};
	});
};

4. 选择：使用Swagger自动生成服务的情况

连接 OpenAPI 服务生成器后，界面不再重新编写 URL 和响应类型。导入生成的函数，并仅传递所需的路径、参数和主体。

MemberSearchPage.tsx
tsx
import { search } from "@handler/service/auto/ApiMembersService";
import { firstValueFrom } from "rxjs";

const response = await firstValueFrom(
  search({
    params: {
      keyword: "kim",
      page: 0,
      size: 20,
    },
  }),
);

下一文档

HTTP Client

查看实际的 commonService 完整代码及各个组件的角色。

快速开始

首先查看库本身的使用方法，然后继续查看WebFlux + Swagger自动生成项目的前端/后端实际调用示例。

OpenAPI Generator

在 swagger.json 中查看类型和服务生成的规则。

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