| 1 | /**
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| 2 | * @external https://github.com/socketio/socket.io/blob/master/lib/index.ts
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| 3 | */
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| 4 | import { CorsOptions } from '@nestjs/common/interfaces/external/cors-options.interface';
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| 5 | export interface GatewayMetadata {
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| 6 | /**
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| 7 | * The name of a namespace
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| 8 | */
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| 9 | namespace?: string | RegExp;
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| 10 | /**
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| 11 | * Name of the path to capture
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| 12 | * @default "/socket.io"
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| 13 | */
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| 14 | path?: string;
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| 15 | /**
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| 16 | * Whether to serve the client files
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| 17 | * @default true
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| 18 | */
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| 19 | serveClient?: boolean;
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| 20 | /**
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| 21 | * The adapter to use
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| 22 | * @default the in-memory adapter (https://github.com/socketio/socket.io-adapter)
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| 23 | */
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| 24 | adapter?: any;
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| 25 | /**
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| 26 | * The parser to use
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| 27 | * @default the default parser (https://github.com/socketio/socket.io-parser)
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| 28 | */
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| 29 | parser?: any;
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| 30 | /**
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| 31 | * How many ms before a client without namespace is closed
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| 32 | * @default 45_000
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| 33 | */
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| 34 | connectTimeout?: number;
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| 35 | /**
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| 36 | * How many ms without a pong packet to consider the connection closed
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| 37 | * @default 20_000
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| 38 | */
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| 39 | pingTimeout?: number;
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| 40 | /**
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| 41 | * How many ms before sending a new ping packet
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| 42 | * @default 25_000
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| 43 | */
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| 44 | pingInterval?: number;
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| 45 | /**
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| 46 | * How many ms before an uncompleted transport upgrade is cancelled
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| 47 | * @default 10_000
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| 48 | */
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| 49 | upgradeTimeout?: number;
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| 50 | /**
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| 51 | * How many bytes or characters a message can be, before closing the session (to avoid DoS).
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| 52 | * @default 1e5 (100 KB)
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| 53 | */
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| 54 | maxHttpBufferSize?: number;
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| 55 | /**
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| 56 | * A function that receives a given handshake or upgrade request as its first parameter,
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| 57 | * and can decide whether to continue or not. The second argument is a function that needs
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| 58 | * to be called with the decided information: fn(err, success), where success is a boolean
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| 59 | * value where false means that the request is rejected, and err is an error code.
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| 60 | */
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| 61 | allowRequest?: (req: any, fn: (err: string | null | undefined, success: boolean) => void) => void;
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| 62 | /**
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| 63 | * The low-level transports that are enabled
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| 64 | * @default ["polling", "websocket"]
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| 65 | */
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| 66 | transports?: Array<'polling' | 'websocket'>;
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| 67 | /**
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| 68 | * Whether to allow transport upgrades
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| 69 | * @default true
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| 70 | */
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| 71 | allowUpgrades?: boolean;
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| 72 | /**
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| 73 | * Parameters of the WebSocket permessage-deflate extension (see ws module api docs). Set to false to disable.
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| 74 | * @default false
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| 75 | */
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| 76 | perMessageDeflate?: boolean | object;
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| 77 | /**
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| 78 | * Parameters of the http compression for the polling transports (see zlib api docs). Set to false to disable.
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| 79 | * @default true
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| 80 | */
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| 81 | httpCompression?: boolean | object;
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| 82 | /**
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| 83 | * What WebSocket server implementation to use. Specified module must
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| 84 | * conform to the ws interface (see ws module api docs). Default value is ws.
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| 85 | * An alternative c++ addon is also available by installing uws module.
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| 86 | */
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| 87 | wsEngine?: string;
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| 88 | /**
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| 89 | * An optional packet which will be concatenated to the handshake packet emitted by Engine.IO.
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| 90 | */
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| 91 | initialPacket?: any;
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| 92 | /**
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| 93 | * Configuration of the cookie that contains the client sid to send as part of handshake response headers. This cookie
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| 94 | * might be used for sticky-session. Defaults to not sending any cookie.
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| 95 | * @default false
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| 96 | */
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| 97 | cookie?: any | boolean;
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| 98 | /**
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| 99 | * The options that will be forwarded to the cors module
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| 100 | */
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| 101 | cors?: CorsOptions;
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| 102 | /**
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| 103 | * Whether to enable compatibility with Socket.IO v2 clients
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| 104 | * @default false
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| 105 | */
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| 106 | allowEIO3?: boolean;
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| 107 | /**
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| 108 | * Destroy unhandled upgrade requests
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| 109 | * @default true
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| 110 | */
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| 111 | destroyUpgrade?: boolean;
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| 112 | /**
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| 113 | * Milliseconds after which unhandled requests are ended
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| 114 | * @default 1_000
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| 115 | */
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| 116 | destroyUpgradeTimeout?: number;
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| 117 | }
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