Skip to content
This repository has been archived by the owner on Jan 31, 2023. It is now read-only.
/ socket-api Public archive

A Node.js / Posix-like JavaScript front-end API for the Socket Runtime

Notifications You must be signed in to change notification settings

socketsupply/socket-api

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Repository files navigation

A high level, cross-platform API for Bluetooth Pub-Sub

Create an instance of a Bluetooth service.

constructor is an example property that is set to true Creates a new service with key-value pairs

Argument Type Default Optional Description
serviceId string false Given a default value to determine the type

Start the bluetooth service.

Return Value Type Description
Not specified Promise<ipc.Result>

Start scanning for published values that correspond to a well-known UUID. Once subscribed to a UUID, events that correspond to that UUID will be emitted. To receive these events you can add an event listener, for example...

const ble = new Bluetooth(id)
ble.subscribe(uuid)
ble.on(uuid, (data, details) => {
  // ...do something interesting
})
Argument Type Default Optional Description
id string false A well-known UUID
Return Value Type Description
Not specified Promise<ipc.Result>

Start advertising a new value for a well-known UUID

Argument Type Default Optional Description
id string false A well-known UUID
value string false
Return Value Type Description
Not specified Promise

External docs: https://nodejs.org/api/buffer.html#buffer_class_buffer

The buffer module from node.js, for the browser.

If Buffer.TYPED_ARRAY_SUPPORT: === true Use Uint8Array implementation (fastest) === false Print warning and recommend using buffer v4.x which has an Object implementation (most compatible, even IE6)

Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, Opera 11.6+, iOS 4.2+.

We report that the browser does not support typed arrays if they are not subclassable using proto. Firefox 4-29 lacks support for adding new properties to Uint8Array (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support for proto and has a buggy typed array implementation.

If Buffer.TYPED_ARRAY_SUPPORT: === true Use Uint8Array implementation (fastest) === false Print warning and recommend using buffer v4.x which has an Object implementation (most compatible, even IE6)

Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, Opera 11.6+, iOS 4.2+.

We report that the browser does not support typed arrays if they are not subclassable using proto. Firefox 4-29 lacks support for adding new properties to Uint8Array (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support for proto and has a buggy typed array implementation.

If Buffer.TYPED_ARRAY_SUPPORT: === true Use Uint8Array implementation (fastest) === false Print warning and recommend using buffer v4.x which has an Object implementation (most compatible, even IE6)

Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, Opera 11.6+, iOS 4.2+.

We report that the browser does not support typed arrays if they are not subclassable using proto. Firefox 4-29 lacks support for adding new properties to Uint8Array (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support for proto and has a buggy typed array implementation.

If Buffer.TYPED_ARRAY_SUPPORT: === true Use Uint8Array implementation (fastest) === false Print warning and recommend using buffer v4.x which has an Object implementation (most compatible, even IE6)

Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, Opera 11.6+, iOS 4.2+.

We report that the browser does not support typed arrays if they are not subclassable using proto. Firefox 4-29 lacks support for adding new properties to Uint8Array (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support for proto and has a buggy typed array implementation.

The Buffer constructor returns instances of Uint8Array that have their prototype changed to Buffer.prototype. Furthermore, Buffer is a subclass of Uint8Array, so the returned instances will have all the node Buffer methods and the Uint8Array methods. Square bracket notation works as expected -- it returns a single octet.

The Uint8Array prototype remains unmodified.

Functionally equivalent to Buffer(arg, encoding) but throws a TypeError if value is a number. Buffer.from(str[, encoding]) Buffer.from(array) Buffer.from(buffer) Buffer.from(arrayBuffer[, byteOffset[, length]])

Functionally equivalent to Buffer(arg, encoding) but throws a TypeError if value is a number. Buffer.from(str[, encoding]) Buffer.from(array) Buffer.from(buffer) Buffer.from(arrayBuffer[, byteOffset[, length]])

Functionally equivalent to Buffer(arg, encoding) but throws a TypeError if value is a number. Buffer.from(str[, encoding]) Buffer.from(array) Buffer.from(buffer) Buffer.from(arrayBuffer[, byteOffset[, length]])

Functionally equivalent to Buffer(arg, encoding) but throws a TypeError if value is a number. Buffer.from(str[, encoding]) Buffer.from(array) Buffer.from(buffer) Buffer.from(arrayBuffer[, byteOffset[, length]])

Creates a new filled Buffer instance. alloc(size[, fill[, encoding]])

Creates a new filled Buffer instance. alloc(size[, fill[, encoding]])

Creates a new filled Buffer instance. alloc(size[, fill[, encoding]])

Creates a new filled Buffer instance. alloc(size[, fill[, encoding]])

Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.

Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.

Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.

Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.

Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.

Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.

Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.

Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.

Some high level methods around the crypto.subtle api for getting random bytes and hashing.

WebCrypto API

External docs: https://developer.mozilla.org/en-US/docs/Web/API/Crypto/getRandomValues

Generate cryptographically strong random values into buffer

Argument Type Default Optional Description
buffer TypedArray false
Return Value Type Description
Not specified TypedArray

Maximum total size of random bytes per page

Maximum total size for random bytes.

Maximum total amount of allocated per page of bytes (max/quota)

Generate size random bytes.

Argument Type Default Optional Description
size number false The number of bytes to generate. The size must not be larger than 2**31 - 1.
Return Value Type Description
Not specified Buffer A promise that resolves with an instance of socket.Buffer with random bytes.
Argument Type Default Optional Description
algorithm string false SHA-1
message Buffer | TypedArray | DataView false An instance of socket.Buffer, TypedArray or Dataview.
Return Value Type Description
Not specified Promise A promise that resolves with an instance of socket.Buffer with the hash.

This module provides an implementation of UDP datagram sockets. It does not (yet) provide any of the multicast methods or properties.

Thrown when a socket is already bound.

Thrown when the socket is already connected.

Thrown when the socket is not connected.

Thrown when the socket is not running (not bound or connected).

Thrown when a bad socket type is used in an argument.

Thrown when a bad port is given.

Creates a Socket instance. if ()

Argument Type Default Optional Description
options string | Object false either a string ('udp4' or 'udp6') or an options object
options.type string true The family of socket. Must be either 'udp4' or 'udp6'. Required.
options.reuseAddr boolean false true When true socket.bind() will reuse the address, even if another process has already bound a socket on it. Default: false.
options.ipv6Only boolean false true Setting ipv6Only to true will disable dual-stack support, i.e., binding to address :: won't make 0.0.0.0 be bound. Default: false.
options.recvBufferSize number true Sets the SO_RCVBUF socket value.
options.sendBufferSize number true Sets the SO_SNDBUF socket value.
options.signal AbortSignal true An AbortSignal that may be used to close a socket.
callback function true Attached as a listener for 'message' events. Optional.
Return Value Type Description
Not specified Socket

New instances of dgram.Socket are created using dgram.createSocket(). The new keyword is not to be used to create dgram.Socket instances.

External docs: https://nodejs.org/api/dgram.html#socketbindport-address-callback

Listen for datagram messages on a named port and optional address If address is not specified, the operating system will attempt to listen on all addresses. Once binding is complete, a 'listening' event is emitted and the optional callback function is called.

If binding fails, an 'error' event is emitted.

Argument Type Default Optional Description
port number false The port to listen for messages on
address string false The address to bind to (0.0.0.0)
callback function false With no parameters. Called when binding is complete.

External docs: https://nodejs.org/api/dgram.html#socketconnectport-address-callback

Associates the dgram.Socket to a remote address and port. Every message sent by this handle is automatically sent to that destination. Also, the socket will only receive messages from that remote peer. Trying to call connect() on an already connected socket will result in an ERR_SOCKET_DGRAM_IS_CONNECTED exception. If address is not provided, '127.0.0.1' (for udp4 sockets) or '::1' (for udp6 sockets) will be used by default. Once the connection is complete, a 'connect' event is emitted and the optional callback function is called. In case of failure, the callback is called or, failing this, an 'error' event is emitted.

Argument Type Default Optional Description
port number false Port the client should connect to.
host string true Host the client should connect to.
connectListener function true Common parameter of socket.connect() methods. Will be added as a listener for the 'connect' event once.

External docs: https://nodejs.org/api/dgram.html#socketdisconnect

A synchronous function that disassociates a connected dgram.Socket from its remote address. Trying to call disconnect() on an unbound or already disconnected socket will result in an ERR_SOCKET_DGRAM_NOT_CONNECTED exception.

External docs: https://nodejs.org/api/dgram.html#socketsendmsg-offset-length-port-address-callback

Broadcasts a datagram on the socket. For connectionless sockets, the destination port and address must be specified. Connected sockets, on the other hand, will use their associated remote endpoint, so the port and address arguments must not be set.

The msg argument contains the message to be sent. Depending on its type, different behavior can apply. If msg is a Buffer, any TypedArray or a DataView, the offset and length specify the offset within the Buffer where the message begins and the number of bytes in the message, respectively. If msg is a String, then it is automatically converted to a Buffer with 'utf8' encoding. With messages that contain multi-byte characters, offset and length will be calculated with respect to byte length and not the character position. If msg is an array, offset and length must not be specified.

The address argument is a string. If the value of address is a host name, DNS will be used to resolve the address of the host. If address is not provided or otherwise nullish, '127.0.0.1' (for udp4 sockets) or '::1' (for udp6 sockets) will be used by default.

If the socket has not been previously bound with a call to bind, the socket is assigned a random port number and is bound to the "all interfaces" address ('0.0.0.0' for udp4 sockets, '::0' for udp6 sockets.)

An optional callback function may be specified to as a way of reporting DNS errors or for determining when it is safe to reuse the buf object. DNS lookups delay the time to send for at least one tick of the Node.js event loop.

The only way to know for sure that the datagram has been sent is by using a callback. If an error occurs and a callback is given, the error will be passed as the first argument to the callback. If a callback is not given, the error is emitted as an 'error' event on the socket object.

Offset and length are optional but both must be set if either are used. They are supported only when the first argument is a Buffer, a TypedArray, or a DataView.

Argument Type Default Optional Description
msg Buffer | TypedArray | DataView | string | Array false Message to be sent.
offset integer true Offset in the buffer where the message starts.
length integer true Number of bytes in the message.
port integer true Destination port.
address string true Destination host name or IP address.
callback Function true Called when the message has been sent.

External docs: https://nodejs.org/api/dgram.html#socketclosecallback

Close the underlying socket and stop listening for data on it. If a callback is provided, it is added as a listener for the 'close' event.

Argument Type Default Optional Description
callback function true Called when the connection is completed or on error.

External docs: https://nodejs.org/api/dgram.html#socketaddress

Returns an object containing the address information for a socket. For UDP sockets, this object will contain address, family, and port properties.

This method throws EBADF if called on an unbound socket.

Return Value Type Description
socketInfo Object Information about the local socket
socketInfo.address string The IP address of the socket
socketInfo.port string The port of the socket
socketInfo.family string The IP family of the socket

External docs: https://nodejs.org/api/dgram.html#socketremoteaddress

Returns an object containing the address, family, and port of the remote endpoint. This method throws an ERR_SOCKET_DGRAM_NOT_CONNECTED exception if the socket is not connected.

Return Value Type Description
socketInfo Object Information about the remote socket
socketInfo.address string The IP address of the socket
socketInfo.port string The port of the socket
socketInfo.family string The IP family of the socket

External docs: https://nodejs.org/api/dgram.html#socketsetrecvbuffersizesize

Sets the SO_RCVBUF socket option. Sets the maximum socket receive buffer in bytes.

Argument Type Default Optional Description
size number false The size of the new receive buffer

External docs: https://nodejs.org/api/dgram.html#socketsetsendbuffersizesize

Sets the SO_SNDBUF socket option. Sets the maximum socket send buffer in bytes.

Argument Type Default Optional Description
size number false The size of the new send buffer

External docs: https://nodejs.org/api/dgram.html#socketgetrecvbuffersize

External docs: https://nodejs.org/api/dgram.html#socketgetsendbuffersize

Return Value Type Description
Not specified number the SO_SNDBUF socket send buffer size in bytes.

This module enables name resolution. For example, use it to look up IP addresses of host names. Although named for the Domain Name System (DNS), it does not always use the DNS protocol for lookups. dns.lookup() uses the operating system facilities to perform name resolution. It may not need to perform any network communication. To perform name resolution the way other applications on the same system do, use dns.lookup().

External docs: https://nodejs.org/api/dns.html#dns_dns_lookup_hostname_options_callback

Resolves a host name (e.g. example.org) into the first found A (IPv4) or AAAA (IPv6) record. All option properties are optional. If options is an integer, then it must be 4 or 6 – if options is 0 or not provided, then IPv4 and IPv6 addresses are both returned if found.

From the node.js website...

With the all option set to true, the arguments for callback change to (err, addresses), with addresses being an array of objects with the properties address and family.

On error, err is an Error object, where err.code is the error code. Keep in mind that err.code will be set to 'ENOTFOUND' not only when the host name does not exist but also when the lookup fails in other ways such as no available file descriptors. dns.lookup() does not necessarily have anything to do with the DNS protocol. The implementation uses an operating system facility that can associate names with addresses and vice versa. This implementation can have subtle but important consequences on the behavior of any Node.js program. Please take some time to consult the Implementation considerations section before using dns.lookup().

Argument Type Default Optional Description
hostname string false The host name to resolve.
opts Object true An options object.
opts.family number | string 0 false The record family. Must be 4, 6, or 0. For backward compatibility reasons,'IPv4' and 'IPv6' are interpreted as 4 and 6 respectively. The value 0 indicates that IPv4 and IPv6 addresses are both returned. Default: 0.
cb function false The function to call after the method is complete.

This module enables name resolution. For example, use it to look up IP addresses of host names. Although named for the Domain Name System (DNS), it does not always use the DNS protocol for lookups. dns.lookup() uses the operating system facilities to perform name resolution. It may not need to perform any network communication. To perform name resolution the way other applications on the same system do, use dns.lookup().

External docs: https://nodejs.org/api/dns.html#dnspromiseslookuphostname-options

Argument Type Default Optional Description
hostname string false The host name to resolve.
opts Object true An options object.
opts.family number | string 0 false The record family. Must be 4, 6, or 0. For backward compatibility reasons,'IPv4' and 'IPv6' are interpreted as 4 and 6 respectively. The value 0 indicates that IPv4 and IPv6 addresses are both returned. Default: 0.
Return Value Type Description
Not specified Promise

This module enables interacting with the file system in a way modeled on standard POSIX functions.

The Application Sandbox restricts access to the file system. Please see the Application Sandbox documentation for more information: https://sockets.sh/guides/#working-with-the-file-system-on-ios

To use the promise-based APIs:

import * as fs from '@socketsupply/socket-api/fs/promises.js';

To use the callback and async APIs:

import * as fs from '@socketsupply/socket-api/fs/index.js';

External docs: https://nodejs.org/dist/latest-v16.x/docs/api/fs.html#fsopenpath-flags-mode-callback

Asynchronously check access a file for a given mode calling callback upon success or error.

Argument Type Default Optional Description
path string | Buffer | URL false
mode string F_OK(0) true
callback function(err, fd) false

External docs: https://nodejs.org/api/fs.html#fschmodpath-mode-callback

Asynchronously changes the permissions of a file. No arguments other than a possible exception are given to the completion callback

Argument Type Default Optional Description
path string | Buffer | URL false
mode number false
callback function(err) false

Asynchronously close a file descriptor calling callback upon success or error.

Argument Type Default Optional Description
fd number false
callback function(err) true

This is a FunctionDeclaration named copyFile in fs/index.js, it's exported but undocumented.

External docs: https://nodejs.org/dist/latest-v16.x/docs/api/fs.html#fscreatewritestreampath-options

Argument Type Default Optional Description
path string | Buffer | URL false
options object true
Return Value Type Description
Not specified fs.ReadStream

External docs: https://nodejs.org/dist/latest-v16.x/docs/api/fs.html#fscreatewritestreampath-options

Argument Type Default Optional Description
path string | Buffer | URL false
options object true
Return Value Type Description
Not specified fs.WriteStream

External docs: https://nodejs.org/dist/latest-v16.x/docs/api/fs.html#fsfstatfd-options-callback

Invokes the callback with the <fs.Stats> for the file descriptor. See the POSIX fstat(2) documentation for more detail.

Argument Type Default Optional Description
fd number false A file descriptor.
options Object true An options object.
callback function false The function to call after completion.

Asynchronously open a file calling callback upon success or error.

Argument Type Default Optional Description
path string | Buffer | URL false
flags string r true
mode string 0o666 true
callback function(err, fd) false

Asynchronously open a directory calling callback upon success or error.

Argument Type Default Optional Description
path string | Buffer | URL false
options Object true
options.encoding string utf8 true
options.withFileTypes boolean false true
callback function(err, fd) false

Asynchronously read from an open file descriptor.

Argument Type Default Optional Description
fd number false
buffer object | Buffer | TypedArray false The buffer that the data will be written to.
offset number false The position in buffer to write the data to.
length number false The number of bytes to read.
position number | BigInt | null false Specifies where to begin reading from in the file. If position is null or -1 , data will be read from the current file position, and the file position will be updated. If position is an integer, the file position will be unchanged.
callback function(err, bytesRead, buffer) false

Asynchronously read all entries in a directory.

Argument Type Default Optional Description
path string | Buffer | URL false
options object true
options.encoding string utf8 true
options.withFileTypes boolean false true
callback function(err, buffer) false
Argument Type Default Optional Description
path string | Buffer | URL | number false
options object true
options.encoding string utf8 true
options.flag string r true
options.signal AbortSignal true
callback function(err, buffer) false
Argument Type Default Optional Description
path string | Buffer | URL | number false filename or file descriptor
options object true
options.encoding string utf8 true
options.flag string r true
options.signal AbortSignal true
callback function(err, data) false
Argument Type Default Optional Description
path string | Buffer | URL | number false filename or file descriptor
data string | Buffer | TypedArray | DataView | object false
options object true
options.encoding string utf8 true
options.mode string 0o666 true
options.flag string w true
options.signal AbortSignal true
callback function(err) false

This is a FunctionDeclaration named writev in fs/index.js, it's exported but undocumented.

External docs: https://nodejs.org/dist/latest-v16.x/docs/api/fs.html#fspromisesaccesspath-mode

Asynchronously check access a file.

Argument Type Default Optional Description
path string | Buffer | URL false
mode string true
options object true

External docs: https://nodejs.org/api/fs.html#fspromiseschmodpath-mode

Argument Type Default Optional Description
path string | Buffer | URL false
mode number false
Return Value Type Description
Not specified Promise

Asynchronously creates a directory.

Argument Type Default Optional Description
path String false The path to create
options Object false The optional options argument can be an integer specifying mode (permission and sticky bits), or an object with a mode property and a recursive property indicating whether parent directories should be created. Calling fs.mkdir() when path is a directory that exists results in an error only when recursive is false.
Return Value Type Description
Not specified Primise Upon success, fulfills with undefined if recursive is false, or the first directory path created if recursive is true.

External docs: https://nodejs.org/api/fs.html#fspromisesopenpath-flags-mode

Asynchronously open a file.

Argument Type Default Optional Description
path string | Buffer | URL false
flags string false default: 'r'
mode string false default: 0o666
Return Value Type Description
Not specified Promise

External docs: https://nodejs.org/api/fs.html#fspromisesopendirpath-options

Argument Type Default Optional Description
path string | Buffer | URL false
options object true
options.encoding string utf8 true
options.bufferSize number 32 true
Return Value Type Description
Not specified Promise<FileSystem,Dir>

External docs: https://nodejs.org/dist/latest-v16.x/docs/api/fs.html#fspromisesreaddirpath-options

Argument Type Default Optional Description
path string | Buffer | URL false
options object true
options.encoding string utf8 true
options.withFileTypes boolean false true

External docs: https://nodejs.org/dist/latest-v16.x/docs/api/fs.html#fspromisesreadfilepath-options

Argument Type Default Optional Description
path string false
options object true
options.encoding string | null null true
options.flag string r true
options.signal AbortSignal true
Return Value Type Description
Not specified Promise<Buffer string>

External docs: https://nodejs.org/api/fs.html#fspromisesstatpath-options

Argument Type Default Optional Description
path string | Buffer | URL false
options object true
options.bigint boolean false true
Return Value Type Description
Not specified Promise

External docs: https://nodejs.org/dist/latest-v16.x/docs/api/fs.html#fspromiseswritefilefile-data-options

Argument Type Default Optional Description
path string | Buffer | URL | FileHandle false filename or FileHandle
data string | Buffer | Array | DataView | TypedArray | Stream false
options object true
options.encoding string | null utf8 false
options.mode number 0o666 false
options.flag string w false
options.signal AbortSignal true
Return Value Type Description
Not specified Promise

This is a VariableDeclaration named DEFAULT_STREAM_HIGH_WATER_MARK in fs/stream.js, it's exported but undocumented.

A Readable stream for a FileHandle.

ReadStream class constructor

Sets file handle for the ReadStream.

Argument Type Default Optional Description
handle FileHandle false

The max buffer size for the ReadStream.

Relative or absolute path of the underlying FileHandle.

true if the stream is in a pending state.

Handles shouldEmitClose setting from options.emitClose in constructor.

A Writable stream for a FileHandle.

WriteStream class constructor

Sets file handle for the WriteStream.

Argument Type Default Optional Description
handle FileHandle false

The max buffer size for the Writetream.

Relative or absolute path of the underlying FileHandle.

true if the stream is in a pending state.

Handles shouldEmitClose setting from options.emitClose in constructor.

This is a VariableDeclaration named FileReadStream in fs/stream.js, it's exported but undocumented.

This is a VariableDeclaration named FileWriteStream in fs/stream.js, it's exported but undocumented.

This is a low level API which you don't need unless you are implementing a library on top of Socket SDK. A Socket SDK app has two or three processes.

  • The Render process, the UI where the HTML, CSS and JS is run.
  • The Bridge process, the thin layer of code that manages everything.
  • The Main process, for apps that need to run heavier compute jobs. And unlike electron it's optional.

The Bridge process manages the Render and Main process, it may also broker data between them.

The Binding process uses standard input and output as a way to communicate. Data written to the write-end of the pipe is buffered by the OS until it is read from the read-end of the pipe.

The IPC protocol uses a simple URI-like scheme. Data is passed as ArrayBuffers.

ipc://command?key1=value1&key2=value2...

This is a FunctionDeclaration named postMessage in ipc.js, it's exported but undocumented.

Represents an OK IPC status.

Represents an ERROR IPC status.

Timeout in milliseconds for IPC requests.

Symbol for the ipc.debug.enabled property

Parses seq as integer value

Argument Type Default Optional Description
seq string | number false
options object true
options.bigint boolean false false

If debug.enabled === true, then debug output will be printed to console.

Argument Type Default Optional Description
enable boolean false
Return Value Type Description
Not specified boolean

A container for a IPC message based on a ipc:// URI scheme.

The expected protocol for an IPC message.

Creates a Message instance from a variety of input.

Argument Type Default Optional Description
input string | URL | Message | Buffer | object false
params object | string | URLSearchParams true
Return Value Type Description
Not specified Message

Predicate to determine if input is valid for constructing a new Message instance.

Argument Type Default Optional Description
input string | URL | Message | Buffer | object false
Return Value Type Description
Not specified boolean

Message class constructor.

Argument Type Default Optional Description
input string | URL false

Computed IPC message name.

Computed IPC message name.

Computed id value for the command.

Computed seq (sequence) value for the command.

Computed message value potentially given in message parameters. This value is automatically decoded, but not treated as JSON.

Computed index value for the command potentially referring to the window index the command is scoped to or originating from. If not specified in the message parameters, then this value defaults to -1.

Computed value parsed as JSON. This value is null if the value is not present or it is invalid JSON.

Computed readonly object of message parameters.

Returns computed parameters as entries

Return Value Type Description
Not specified Array<Array<string,mixed>>

Set a parameter value by key.

Argument Type Default Optional Description
key string false
value mixed false

Get a parameter value by key.

Argument Type Default Optional Description
key string false
defaultValue mixed false
Return Value Type Description
Not specified mixed

Delete a parameter by key.

Argument Type Default Optional Description
key string false
Return Value Type Description
Not specified boolean

Computed parameter keys.

Return Value Type Description
Not specified Array

Computed parameter values.

Return Value Type Description
Not specified Array

Predicate to determine if parameter key is present in parameters.

Argument Type Default Optional Description
key string false
Return Value Type Description
Not specified boolean

Converts a Message instance into a plain JSON object.

A result type used internally for handling IPC result values from the native layer that are in the form of { err?, data? }. The data and err properties on this type of object are in tuple form and be accessed at [data?,err?]

Creates a Result instance from input that may be an object like { err?, data? }, an Error instance, or just data.

Argument Type Default Optional Description
result object | Error | mixed true
maybeError Error true
maybeSource string true
Return Value Type Description
Not specified Result

Result class constructor.

Argument Type Default Optional Description
err Error null true
data object null true
source string undefined true

Computed result length.

Waits for the native IPC layer to be ready and exposed on the global window object.

Sends a synchronous IPC command over XHR returning a Result upon success or error.

Argument Type Default Optional Description
command string false
params object | string true
Return Value Type Description
Not specified Result

Emit event to be dispatched on window object.

Argument Type Default Optional Description
name string false
value Mixed false
target EventTarget window true
options Object true

Resolves a request by seq with possible value.

Argument Type Default Optional Description
seq string false
value Mixed false

Sends an async IPC command request with parameters.

Argument Type Default Optional Description
command string false
value Mixed true
Return Value Type Description
Not specified Promise

Sends an async IPC command request with parameters and buffered bytes.

Argument Type Default Optional Description
command string false
params object true
buffer Buffer | TypeArray | ArrayBuffer | string | Array true
options object true

Sends an async IPC command request with parameters requesting a response with buffered bytes.

Argument Type Default Optional Description
command string false
params object true
options object true

Factory for creating a proxy based IPC API.

Argument Type Default Optional Description
domain string false
ctx function | object true
ctx.default string true
Return Value Type Description
Not specified Proxy

This module provides normalized system information from all the major operating systems.

This is a FunctionDeclaration named arch in os.js, it's exported but undocumented.

This is a FunctionDeclaration named networkInterfaces in os.js, it's exported but undocumented.

This is a FunctionDeclaration named platform in os.js, it's exported but undocumented.

This is a FunctionDeclaration named type in os.js, it's exported but undocumented.

This is a FunctionDeclaration named isWindows in os.js, it's exported but undocumented.

This is a FunctionDeclaration named tmpdir in os.js, it's exported but undocumented.

This is a VariableDeclaration named EOL in os.js, it's exported but undocumented.

This is a ClassDeclaration named Path in path/path.js, it's exported but undocumented.

Computes current working directory for a path

Argument Type Default Optional Description
opts object true
opts.posix Set to true to force POSIX style path boolean true

Path class constructor.

Argument Type Default Optional Description
opts object true
opts.root string true
opts.base string true
opts.name string true
opts.dir string true
opts.ext string true
Return Value Type Description
Not specified string The home directory of the current user.
Argument Type Default Optional Description
code number 0 true The exit code. Default: 0.

Provides runtime-specific methods

This is a VariableDeclaration named currentWindow in runtime.js, it's exported but undocumented.

This is a VariableDeclaration named debug in runtime.js, it's exported but undocumented.

This is a VariableDeclaration named config in runtime.js, it's exported but undocumented.

This is a FunctionDeclaration named send in runtime.js, it's exported but undocumented.

This is a FunctionDeclaration named getWindows in runtime.js, it's exported but undocumented.

This is a FunctionDeclaration named openExternal in runtime.js, it's exported but undocumented.

Quits the backend process and then quits the render process, the exit code used is the final exit code to the OS.

Argument Type Default Optional Description
options object false an options object
Return Value Type Description
Not specified Promise

Sets the title of the window (if applicable).

Argument Type Default Optional Description
options object false an options object
Return Value Type Description
Not specified Promise<ipc.Result>

This is a FunctionDeclaration named inspect in runtime.js, it's exported but undocumented.

Argument Type Default Optional Description
opts object false an options object
Return Value Type Description
Not specified Promise<ipc.Result>
Argument Type Default Optional Description
opts object false an options object
Return Value Type Description
Not specified Promise<ipc.Result>
Argument Type Default Optional Description
opts object false an options object
opts.window number currentWindow false the index of the window
opts.url number false the path to the HTML file to load into the window
Return Value Type Description
Not specified Promise<ipc.Result>

This is a FunctionDeclaration named setWindowBackgroundColor in runtime.js, it's exported but undocumented.

Opens a native context menu.

Argument Type Default Optional Description
options object false an options object
Return Value Type Description
Not specified Promise

This is a FunctionDeclaration named setSystemMenuItemEnabled in runtime.js, it's exported but undocumented.

Set the native menu for the app.

Socket Runtime provides a minimalist DSL that makes it easy to create cross platform native system and context menus.

Menus are created at run time. They can be created from either the Main or Render process. They can be recreated instantly by calling the setSystemMenu method.

The method takes a string. Here's an example of a menu. The semi colon is significant indicates the end of the menu. Use an underscore when there is no accelerator key. Modifiers are optional. And well known OS menu options like the edit menu will automatically get accelerators you don't need to specify them.

socket.runtime.setSystemMenu({ index: 0, value: `
  App:
    Foo: f;

  Edit:
    Cut: x
    Copy: c
    Paste: v
    Delete: _
    Select All: a;

  Other:
    Apple: _
    Another Test: T
    !Im Disabled: I
    Some Thing: S + Meta
    ---
    Bazz: s + Meta, Control, Alt;
`)

Separators

To create a separator, use three dashes ---.

Accelerator Modifiers

Accelerator modifiers are used as visual indicators but don't have a material impact as the actual key binding is done in the event listener.

A capital letter implies that the accelerator is modified by the Shift key.

Additional accelerators are Meta, Control, Option, each separated by commas. If one is not applicable for a platform, it will just be ignored.

On MacOS Meta is the same as Command.

Disabled Items

If you want to disable a menu item just prefix the item with the ! character. This will cause the item to appear disabled when the system menu renders.

Submenus

We feel like nested menus are an anti-pattern. We don't use them. If you have a strong argument for them and a very simple pull request that makes them work we may consider them.

Event Handling

When a menu item is activated, it raises the menuItemSelected event in the front end code, you can then communicate with your backend code if you want from there.

For example, if the Apple item is selected from the Other menu...

window.addEventListener('menuItemSelected', event => {
  assert(event.detail.parent === 'Other')
  assert(event.detail.title === 'Apple')
})
Argument Type Default Optional Description
options object false an options object
options.value string false the menu layout
options.index number false the window to target (if applicable)
Return Value Type Description
Not specified Promise

This is a FunctionDeclaration named reload in runtime.js, it's exported but undocumented.