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@tai-kun/surrealdb

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The SurrealDB SDK for JavaScript

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"use strict"; var __defProp = Object.defineProperty; var __getOwnPropDesc = Object.getOwnPropertyDescriptor; var __getOwnPropNames = Object.getOwnPropertyNames; var __hasOwnProp = Object.prototype.hasOwnProperty; var __name = (target, value) => __defProp(target, "name", { value, configurable: true }); var __export = (target, all) => { for (var name in all) __defProp(target, name, { get: all[name], enumerable: true }); }; var __copyProps = (to, from, except, desc) => { if (from && typeof from === "object" || typeof from === "function") { for (let key of __getOwnPropNames(from)) if (!__hasOwnProp.call(to, key) && key !== except) __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable }); } return to; }; var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod); // src/engines/http/engine.ts var engine_exports = {}; __export(engine_exports, { default: () => HttpEngine }); module.exports = __toCommonJS(engine_exports); var import_engine = require("../../engine/index.cjs"); var import_errors = require("../../errors/index.cjs"); var import_formatter = require("../../formatter/index.cjs"); var import_utils = require("../../utils/index.cjs"); var _HttpEngine = class _HttpEngine extends import_engine.EngineAbc { constructor(config) { super(config); this.name = "http"; this.vars = {}; this.fetch = config.fetch || ((0, import_utils.isBrowser)() ? window.fetch.bind(window) : fetch); } async connect({ endpoint, signal }) { (0, import_utils.throwIfAborted)(signal); const conn = this.getConnectionInfo(); if (conn.state === "open") { return; } if (conn.state !== "closed") { (0, import_errors.unreachable)(conn); } await this.transition( { state: "connecting", endpoint }, () => "closed" ); await this.transition( { state: "open", endpoint }, () => "closed" ); } async close({ signal }) { (0, import_utils.throwIfAborted)(signal); const conn = this.getConnectionInfo(); if (conn.state === "closed") { return; } if (conn.state !== "open") { (0, import_errors.unreachable)(conn); } this.vars = {}; await this.transition( { state: "closing", endpoint: conn.endpoint }, () => ({ state: "closing", endpoint: conn.endpoint }) ); await this.transition("closed", () => "closed"); } async rpc({ request, signal }) { const conn = this.getConnectionInfo(); if (conn.state !== "open") { throw new import_errors.ConnectionUnavailableError({ cause: "The connection is not established via the .connect() method." }); } switch (request.method) { case "use": { let { namespace, database } = conn; const [ns, db] = request.params; if (ns !== void 0) { namespace = ns; } if (db !== void 0) { database = db; } if (namespace === null && database !== null) { throw new import_errors.MissingNamespaceError(database); } this.namespace = namespace; this.database = database; return { result: void 0 }; } case "let": { const [name, value] = request.params; this.vars[name] = this.fmt.toEncoded?.(value) ?? (0, import_formatter.cloneSync)(this.fmt, value); return { result: void 0 }; } case "unset": { const [name] = request.params; delete this.vars[name]; return { result: void 0 }; } case "query": { const req = (0, import_engine.processQueryRequest)(request); req.params[1] = Object.assign({}, this.vars, req.params[1]); request = req; break; } } if (conn.namespace === null && conn.database !== null) { throw new import_errors.MissingNamespaceError(conn.database); } const body = this.fmt.encodeSync(request); if (typeof body !== "string" && !(body instanceof Uint8Array)) { throw new import_errors.SurrealTypeError(["String", "Uint8Array"], body); } const headers = { Accept: this.fmt.contentType, "Content-Type": this.fmt.contentType }; if (conn.namespace != null) { headers["Surreal-NS"] = conn.namespace; } if (conn.database != null) { headers["Surreal-DB"] = conn.database; } if (conn.token) { headers["Authorization"] = `Bearer ${conn.token}`; } const resp = await this.fetch(conn.endpoint.href, { body, signal, method: "POST", headers }); const cause = { method: request.method, // TODO(tai-kun): params には機微情報が含まれている可能性があるので、method のみにしておく? params: request.params, endpoint: conn.endpoint.href, database: conn.database, namespace: conn.namespace }; if (!(resp instanceof Response) || resp.body === null) { throw new import_errors.ServerResponseError( "Expected `Response` contains a non-null body.", { cause: Object.assign(cause, { response: resp }) } ); } if (resp.status !== 200) { const message = await resp.text(); throw new import_errors.ServerResponseError(message, { cause: Object.assign(cause, { status: resp.status }) }); } let rpcResp; if (this.fmt.decodeStream && this.fmt.decodingStrategy) { const length = Number(resp.headers.get("content-length")); if (length === length && length > 0 && this.fmt.decodingStrategy({ name: "fetch", length }) === "stream") { rpcResp = await this.fmt.decodeStream(resp.body, signal); } else { rpcResp = this.fmt.decodeSync(await resp.arrayBuffer()); } } else { rpcResp = this.fmt.decodeSync(await resp.arrayBuffer()); } if (!(0, import_utils.isRpcResponse)(rpcResp) || "id" in rpcResp) { throw new import_errors.ServerResponseError("Expected id-less rpc response.", { cause: Object.assign(cause, { response: rpcResp }) }); } if ("result" in rpcResp) { const rpc = { method: request.method, params: request.params, result: rpcResp.result }; switch (rpc.method) { case "signin": case "signup": this.token = rpc.result; break; case "authenticate": [this.token] = rpc.params; break; case "invalidate": this.token = null; break; } } const id = `${request.method}_0`; const hooks = this.ee.emit(`rpc_${id}`, { id, ...rpcResp }); if (hooks) { await Promise.all(hooks); } return rpcResp; } }; __name(_HttpEngine, "HttpEngine"); var HttpEngine = _HttpEngine; //# sourceMappingURL=data:application/json;base64,{
  "version": 3,
  "sources": ["../../../src/engines/http/engine.ts"],
  "sourcesContent": ["import {\n  type CloseArgs,\n  type ConnectArgs,\n  EngineAbc,\n  type EngineAbcConfig,\n  processQueryRequest,\n  type RpcArgs,\n} from \"@tai-kun/surrealdb/engine\";\nimport {\n  ConnectionUnavailableError,\n  MissingNamespaceError,\n  ServerResponseError,\n  SurrealTypeError,\n  unreachable,\n} from \"@tai-kun/surrealdb/errors\";\nimport { cloneSync } from \"@tai-kun/surrealdb/formatter\";\nimport type {\n  BidirectionalRpcResponse,\n  IdLessRpcResponse,\n  RpcParams,\n  RpcQueryRequest,\n  RpcResult,\n} from \"@tai-kun/surrealdb/types\";\nimport {\n  isBrowser,\n  isRpcResponse,\n  throwIfAborted,\n} from \"@tai-kun/surrealdb/utils\";\n\nexport interface HttpFetcherRequestInit {\n  method: \"POST\";\n  headers: {\n    \"Content-Type\": string;\n    \"Surreal-DB\"?: string;\n    \"Surreal-NS\"?: string;\n    Accept: string;\n    Authorization?: `Bearer ${string}`;\n  };\n  body: string | Uint8Array;\n  signal: AbortSignal;\n}\n\nexport type HttpFetcher = (\n  input: string,\n  init: HttpFetcherRequestInit,\n) => PromiseLike<Response>;\n\nexport interface HttpEngineConfig extends EngineAbcConfig {\n  readonly fetch?: HttpFetcher | undefined;\n}\n\nexport default class HttpEngine extends EngineAbc {\n  readonly name = \"http\";\n\n  protected vars: Record<string, unknown> = {};\n\n  protected fetch: HttpFetcher;\n\n  constructor(config: HttpEngineConfig) {\n    super(config);\n    this.fetch = config.fetch\n      || (isBrowser() ? window.fetch.bind(window) : fetch);\n  }\n\n  async connect({ endpoint, signal }: ConnectArgs): Promise<void> {\n    throwIfAborted(signal);\n    const conn = this.getConnectionInfo();\n\n    if (conn.state === \"open\") {\n      return;\n    }\n\n    if (conn.state !== \"closed\") {\n      unreachable(conn as never);\n    }\n\n    await this.transition(\n      {\n        state: \"connecting\",\n        endpoint,\n      },\n      () => \"closed\",\n    );\n    await this.transition(\n      {\n        state: \"open\",\n        endpoint,\n      },\n      () => \"closed\",\n    );\n  }\n\n  async close({ signal }: CloseArgs): Promise<void> {\n    throwIfAborted(signal);\n    const conn = this.getConnectionInfo();\n\n    if (conn.state === \"closed\") {\n      return;\n    }\n\n    if (conn.state !== \"open\") {\n      unreachable(conn as never);\n    }\n\n    this.vars = {};\n    await this.transition(\n      {\n        state: \"closing\",\n        endpoint: conn.endpoint,\n      },\n      () => ({\n        state: \"closing\",\n        endpoint: conn.endpoint,\n      }),\n    );\n    await this.transition(\"closed\", () => \"closed\");\n  }\n\n  async rpc({ request, signal }: RpcArgs): Promise<IdLessRpcResponse> {\n    // \u63A5\u7D9A\u60C5\u5831\u306E\u30B9\u30CA\u30C3\u30D7\u30B7\u30E7\u30C3\u30C8\u3092\u53D6\u5F97\u3057\u307E\u3059\u3002\n    // \u4EE5\u964D\u3001\u63A5\u7D9A\u60C5\u5831\u3092\u53C2\u7167\u3059\u308B\u969B\u306F\u3053\u308C\u3092\u4F7F\u7528\u3057\u307E\u3059\u3002\n    const conn = this.getConnectionInfo();\n\n    if (conn.state !== \"open\") {\n      throw new ConnectionUnavailableError({\n        cause: \"The connection is not established via the .connect() method.\",\n      });\n    }\n\n    switch (request.method) {\n      case \"use\": {\n        let { namespace, database } = conn;\n        const [ns, db] = request.params;\n\n        if (ns !== undefined) {\n          namespace = ns;\n        }\n\n        if (db !== undefined) {\n          database = db;\n        }\n\n        if (namespace === null && database !== null) {\n          throw new MissingNamespaceError(database);\n        }\n\n        this.namespace = namespace;\n        this.database = database;\n\n        return {\n          result: undefined,\n        };\n      }\n\n      case \"let\": {\n        const [name, value] = request.params;\n        this.vars[name] = this.fmt.toEncoded?.(value)\n          // WebSocket \u30A8\u30F3\u30B8\u30F3\u3068\u306E\u6319\u52D5\u3092\u5408\u308F\u305B\u308B\u305F\u3081\u306B\u30D1\u30E9\u30E1\u30FC\u30BF\u30FC\u3092\u4E0D\u5909\u306B\u3059\u308B\u3002\n          ?? cloneSync(this.fmt, value);\n\n        return {\n          result: undefined,\n        };\n      }\n\n      case \"unset\": {\n        const [name] = request.params;\n        delete this.vars[name];\n\n        return {\n          result: undefined,\n        };\n      }\n\n      case \"query\": {\n        const req = processQueryRequest(request);\n        req.params[1] = Object.assign({}, this.vars, req.params[1]);\n        request = req as RpcQueryRequest;\n        break;\n      }\n    }\n\n    if (conn.namespace === null && conn.database !== null) {\n      throw new MissingNamespaceError(conn.database);\n    }\n\n    const body: unknown = this.fmt.encodeSync(request);\n\n    if (typeof body !== \"string\" && !(body instanceof Uint8Array)) {\n      throw new SurrealTypeError([\"String\", \"Uint8Array\"], body);\n    }\n\n    const headers: HttpFetcherRequestInit[\"headers\"] = {\n      Accept: this.fmt.contentType,\n      \"Content-Type\": this.fmt.contentType,\n    };\n\n    if (conn.namespace != null) {\n      headers[\"Surreal-NS\"] = conn.namespace;\n    }\n\n    if (conn.database != null) {\n      headers[\"Surreal-DB\"] = conn.database;\n    }\n\n    if (conn.token) {\n      headers[\"Authorization\"] = `Bearer ${conn.token}`;\n    }\n\n    const resp: unknown = await this.fetch(conn.endpoint.href, {\n      body,\n      signal,\n      method: \"POST\",\n      headers,\n    });\n    const cause = {\n      method: request.method,\n      // TODO(tai-kun): params \u306B\u306F\u6A5F\u5FAE\u60C5\u5831\u304C\u542B\u307E\u308C\u3066\u3044\u308B\u53EF\u80FD\u6027\u304C\u3042\u308B\u306E\u3067\u3001method \u306E\u307F\u306B\u3057\u3066\u304A\u304F\uFF1F\n      params: request.params,\n      endpoint: conn.endpoint.href,\n      database: conn.database,\n      namespace: conn.namespace,\n    };\n\n    if (!(resp instanceof Response) || resp.body === null) {\n      throw new ServerResponseError(\n        \"Expected `Response` contains a non-null body.\",\n        {\n          cause: Object.assign(cause, {\n            response: resp,\n          }),\n        },\n      );\n    }\n\n    if (resp.status !== 200) {\n      const message = await resp.text();\n      throw new ServerResponseError(message, {\n        cause: Object.assign(cause, {\n          status: resp.status,\n        }),\n      });\n    }\n\n    // throwIfAborted(signal);\n    let rpcResp: unknown;\n\n    if (this.fmt.decodeStream && this.fmt.decodingStrategy) {\n      const length = Number(resp.headers.get(\"content-length\"));\n\n      if (\n        length === length\n        && length > 0\n        && this.fmt.decodingStrategy({ name: \"fetch\", length }) === \"stream\"\n      ) {\n        rpcResp = await this.fmt.decodeStream(resp.body, signal);\n      } else {\n        rpcResp = this.fmt.decodeSync(await resp.arrayBuffer());\n      }\n    } else {\n      rpcResp = this.fmt.decodeSync(await resp.arrayBuffer());\n    }\n\n    if (!isRpcResponse(rpcResp) || \"id\" in rpcResp) {\n      throw new ServerResponseError(\"Expected id-less rpc response.\", {\n        cause: Object.assign(cause, {\n          response: rpcResp,\n        }),\n      });\n    }\n\n    if (\"result\" in rpcResp) {\n      const rpc = {\n        method: request.method,\n        params: request.params,\n        result: rpcResp.result,\n      } as {\n        [M in (typeof request)[\"method\"]]: {\n          method: M;\n          params: RpcParams<M>;\n          result: RpcResult<M>;\n        };\n      }[(typeof request)[\"method\"]];\n\n      switch (rpc.method) {\n        case \"signin\":\n        case \"signup\":\n          this.token = rpc.result;\n          break;\n\n        case \"authenticate\":\n          [this.token] = rpc.params;\n          break;\n\n        case \"invalidate\":\n          this.token = null;\n          break;\n      }\n    }\n\n    // \u53CC\u65B9\u5411\u901A\u4FE1\u306E\u30EC\u30B9\u30DD\u30F3\u30B9\u306B\u64EC\u614B\u3059\u308B\u3002\n    const id: BidirectionalRpcResponse[\"id\"] = `${request.method}_0`;\n    const hooks = this.ee.emit(`rpc_${id}`, {\n      id,\n      ...rpcResp,\n    });\n\n    if (hooks) {\n      await Promise.all(hooks);\n    }\n\n    return rpcResp;\n  }\n}\n"],
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