whatsmeow

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 Go to latest Published: Jul 10, 2022 License: MPL-2.0 Imports: 45 Imported by: 0

README

whatsmeow

godocs.io

whatsmeow is a Go library for the WhatsApp web multidevice API.

This was initially forked from go-whatsapp (MIT license), but large parts of the code have been rewritten for multidevice support. Parts of the code are ported from WhatsappWeb4j and Baileys (also MIT license).

Discussion

Matrix room: #whatsmeow:maunium.net

Usage

The godoc includes docs for all methods and event types. There's also a simple example at the top.

Also see mdtest for a CLI tool you can easily try out whatsmeow with.

Features

Most core features are already present:

  • Sending messages to private chats and groups (both text and media)
  • Receiving all messages
  • Managing groups and receiving group change events
  • Joining via invite messages, using and creating invite links
  • Sending and receiving typing notifications
  • Sending and receiving delivery and read receipts
  • Reading app state (contact list, chat pin/mute status, etc)
  • Sending and handling retry receipts if message decryption fails

Things that are not yet implemented:

  • Writing app state (contact list, chat pin/mute status, etc)
  • Sending status messages or broadcast list messages (this is not supported on WhatsApp web either)
  • Calls

Documentation

Overview

Package whatsmeow implements a client for interacting with the WhatsApp web multidevice API.

Index

Constants

View Source 
const (
	// WantedPreKeyCount is the number of prekeys that the client should upload to the WhatsApp servers in a single batch.
	WantedPreKeyCount = 50
	// MinPreKeyCount is the number of prekeys when the client will upload a new batch of prekeys to the WhatsApp servers.
	MinPreKeyCount = 5
)
View Source 
const BusinessMessageLinkDirectPrefix = "https://api.whatsapp.com/message/"
View Source 
const BusinessMessageLinkPrefix = "https://wa.me/message/"
View Source 
const InviteLinkPrefix = "https://chat.whatsapp.com/"
View Source 
const NoiseHandshakeResponseTimeout = 5 * time.Second

Variables

View Source 
var (
	ErrNoSession      = errors.New("can't encrypt message for device: no signal session established")
	ErrIQTimedOut     = errors.New("info query timed out")
	ErrIQDisconnected = errors.New("socket disconnected before info query returned response")
	ErrNotConnected   = errors.New("socket not connected")
	ErrNotLoggedIn    = errors.New("the store doesn't contain a device JID")

	ErrAlreadyConnected = errors.New("socket is already connected")

	ErrQRAlreadyConnected = errors.New("GetQRChannel must be called before connecting")
	ErrQRStoreContainsID  = errors.New("GetQRChannel can only be called when there's no user ID in the client's Store")

	ErrNoPushName = errors.New("can't send presence without PushName set")
)

Miscellaneous errors

View Source 
var (
	// ErrProfilePictureUnauthorized is returned by GetProfilePictureInfo when trying to get the profile picture of a user
	// whose privacy settings prevent you from seeing their profile picture (status code 401).
	ErrProfilePictureUnauthorized = errors.New("the user has hidden their profile picture from you")
	// ErrGroupInviteLinkUnauthorized is returned by GetGroupInviteLink if you don't have the permission to get the link (status code 401).
	ErrGroupInviteLinkUnauthorized = errors.New("you don't have the permission to get the group's invite link")
	// ErrNotInGroup is returned by group info getting methods if you're not in the group (status code 403).
	ErrNotInGroup = errors.New("you're not participating in that group")
	// ErrGroupNotFound is returned by group info getting methods if the group doesn't exist (status code 404).
	ErrGroupNotFound = errors.New("that group does not exist")
	// ErrInviteLinkInvalid is returned by methods that use group invite links if the invite link is malformed.
	ErrInviteLinkInvalid = errors.New("that group invite link is not valid")
	// ErrInviteLinkRevoked is returned by methods that use group invite links if the invite link was valid, but has been revoked and can no longer be used.
	ErrInviteLinkRevoked = errors.New("that group invite link has been revoked")
	// ErrBusinessMessageLinkNotFound is returned by ResolveBusinessMessageLink if the link doesn't exist or has been revoked.
	ErrBusinessMessageLinkNotFound = errors.New("that business message link does not exist or has been revoked")
)
View Source 
var (
	ErrBroadcastListUnsupported = errors.New("sending to broadcast lists is not yet supported")
	ErrUnknownServer            = errors.New("can't send message to unknown server")
	ErrRecipientADJID           = errors.New("message recipient must be normal (non-AD) JID")
	ErrSendDisconnected         = errors.New("socket disconnected before message send returned response")
)

Some errors that Client.SendMessage can return

View Source 
var (
	ErrMediaDownloadFailedWith404 = errors.New("download failed with status code 404")
	ErrMediaDownloadFailedWith410 = errors.New("download failed with status code 410")
	ErrNoURLPresent               = errors.New("no url present")
	ErrFileLengthMismatch         = errors.New("file length does not match")
	ErrTooShortFile               = errors.New("file too short")
	ErrInvalidMediaHMAC           = errors.New("invalid media hmac")
	ErrInvalidMediaEncSHA256      = errors.New("hash of media ciphertext doesn't match")
	ErrInvalidMediaSHA256         = errors.New("hash of media plaintext doesn't match")
	ErrUnknownMediaType           = errors.New("unknown media type")
	ErrNothingDownloadableFound   = errors.New("didn't find any attachments in message")
)

Some errors that Client.Download can return

View Source 
var (
	ErrIQNotAuthorized error = &IQError{Code: 401, Text: "not-authorized"}
	ErrIQForbidden     error = &IQError{Code: 403, Text: "forbidden"}
	ErrIQNotFound      error = &IQError{Code: 404, Text: "item-not-found"}
	ErrIQNotAcceptable error = &IQError{Code: 406, Text: "not-acceptable"}
	ErrIQGone          error = &IQError{Code: 410, Text: "gone"}
)

Common errors returned by info queries for use with errors.Is

View Source 
var (
	// KeepAliveResponseDeadline specifies the duration to wait for a response to websocket keepalive pings.
	KeepAliveResponseDeadline = 10 * time.Second
	// KeepAliveIntervalMin specifies the minimum interval for websocket keepalive pings.
	KeepAliveIntervalMin = 20 * time.Second
	// KeepAliveIntervalMax specifies the maximum interval for websocket keepalive pings.
	KeepAliveIntervalMax = 30 * time.Second
)
View Source 
var (
	// QRChannelSuccess is emitted from GetQRChannel when the pairing is successful.
	QRChannelSuccess = QRChannelItem{Event: "success"}
	// QRChannelTimeout is emitted from GetQRChannel if the socket gets disconnected by the server before the pairing is successful.
	QRChannelTimeout = QRChannelItem{Event: "timeout"}
	// QRChannelErrUnexpectedEvent is emitted from GetQRChannel if an unexpected connection event is received,
	// as that likely means that the pairing has already happened before the channel was set up.
	QRChannelErrUnexpectedEvent = QRChannelItem{Event: "err-unexpected-state"}
	// QRChannelScannedWithoutMultidevice is emitted from GetQRChannel if events.QRScannedWithoutMultidevice is received.
	QRChannelScannedWithoutMultidevice = QRChannelItem{Event: "err-scanned-without-multidevice"}
)

Functions

func GenerateMessageID 

func GenerateMessageID() types.MessageID

GenerateMessageID generates a random string that can be used as a message ID on WhatsApp.

Types

type Client 

type Client struct {
	Store *store.Device
	//Log   waLog.Logger
	//recvLog waLog.Logger
	//sendLog waLog.Logger
	ProxyDialer proxy.Dialer

	EnableAutoReconnect   bool
	LastSuccessfulConnect time.Time
	AutoReconnectErrors   int
	Registered            bool
	// EmitAppStateEventsOnFullSync can be set to true if you want to get app state events emitted
	// even when re-syncing the whole state.
	EmitAppStateEventsOnFullSync bool

	// GetMessageForRetry is used to find the source message for handling retry receipts
	// when the message is not found in the recently sent message cache.
	GetMessageForRetry func(to types.JID, id types.MessageID) *waProto.Message

	HistorySyncID int32
	StartupTime   int64
	// contains filtered or unexported fields
}

Client contains everything necessary to connect to and interact with the WhatsApp web API.

func NewClient 

func NewClient(deviceStore *store.Device, registered bool) *Client

NewClient initializes a new WhatsApp web client.

The logger can be nil, it will default to a no-op logger.

The device store must be set. A default SQL-backed implementation is available in the store/sqlstore package. 

container, err := sqlstore.New("sqlite3", "file:yoursqlitefile.db?_foreign_keys=on", nil)
if err != nil {
    panic(err)
}
// If you want multiple sessions, remember their JIDs and use .GetDevice(jid) or .GetAllDevices() instead.
deviceStore, err := container.GetFirstDevice()
if err != nil {
    panic(err)
}
client := whatsmeow.NewClient(deviceStore, nil)

func (*Client) AddEventHandler 

func (cli *Client) AddEventHandler(handler EventHandler) uint32

AddEventHandler registers a new function to receive all events emitted by this client.

The returned integer is the event handler ID, which can be passed to RemoveEventHandler to remove it.

All registered event handlers will receive all events. You should use a type switch statement to filter the events you want: 

func myEventHandler(evt interface{}) {
    switch v := evt.(type) {
    case *events.Order:
        fmt.Println("Received a message!")
    case *events.Receipt:
        fmt.Println("Received a receipt!")
    }
}

If you want to access the Client instance inside the event handler, the recommended way is to wrap the whole handler in another struct: 

type MyClient struct {
    WAClient *whatsmeow.Client
    eventHandlerID uint32
}

func (mycli *MyClient) register() {
    mycli.eventHandlerID = mycli.WAClient.AddEventHandler(mycli.myEventHandler)
}

func (mycli *MyClient) myEventHandler(evt interface{}) {
     // Handle event and access mycli.WAClient
}

func (*Client) Connect 

func (cli *Client) Connect() error

Connect connects the client to the WhatsApp web websocket. After connection, it will either authenticate if there's data in the device store, or emit a QREvent to set up a new link.

func (*Client) CreateGroup 

func (cli *Client) CreateGroup(name string, participants []types.JID) (*types.GroupInfo, error)

CreateGroup creates a group on WhatsApp with the given name and participants.

You don't need to include your own JID in the participants array, the WhatsApp servers will add it implicitly.

func (*Client) Disconnect 

func (cli *Client) Disconnect()

Disconnect disconnects from the WhatsApp web websocket.

func (*Client) Download 

func (cli *Client) Download(msg DownloadableMessage) (data []byte, err error)

Download downloads the attachment from the given protobuf message.

func (*Client) DownloadAny 

func (cli *Client) DownloadAny(msg *waProto.Message) (data []byte, err error)

DownloadAny loops through the downloadable parts of the given message and downloads the first non-nil item.

func (*Client) FetchAppState 

func (cli *Client) FetchAppState(name appstate.WAPatchName, fullSync, onlyIfNotSynced bool) error

FetchAppState fetches updates to the given type of app state. If fullSync is true, the current cached state will be removed and all app state patches will be re-fetched from the server.

func (*Client) GetGroupInfo 

func (cli *Client) GetGroupInfo(jid types.JID) (*types.GroupInfo, error)

GetGroupInfo requests basic info about a group chat from the WhatsApp servers.

func (*Client) GetGroupInfoFromInvite 

func (cli *Client) GetGroupInfoFromInvite(jid, inviter types.JID, code string, expiration int64) (*types.GroupInfo, error)

GetGroupInfoFromInvite gets the group info from an invite message.

Note that this is specifically for invite messages, not invite links. Use GetGroupInfoFromLink for resolving chat.whatsapp.com links. 

func (cli *Client) GetGroupInfoFromLink(code string) (*types.GroupInfo, error)

GetGroupInfoFromLink resolves the given invite link and asks the WhatsApp servers for info about the group. This will not cause the user to join the group. 

func (cli *Client) GetGroupInviteLink(jid types.JID, reset bool) (string, error)

GetGroupInviteLink requests the invite link to the group from the WhatsApp servers.

If reset is true, then the old invite link will be revoked and a new one generated.

func (*Client) GetJoinedGroups 

func (cli *Client) GetJoinedGroups() ([]*types.GroupInfo, error)

GetJoinedGroups returns the list of groups the user is participating in.

func (*Client) GetPrivacySettings 

func (cli *Client) GetPrivacySettings() (settings types.PrivacySettings)

GetPrivacySettings will get the user's privacy settings. If an error occurs while fetching them, the error will be logged, but the method will just return an empty struct.

func (*Client) GetProfilePictureInfo 

func (cli *Client) GetProfilePictureInfo(jid types.JID, preview bool) (*types.ProfilePictureInfo, error)

GetProfilePictureInfo gets the URL where you can download a WhatsApp user's profile picture or group's photo. If the user or group doesn't have a profile picture, this returns nil with no error.

func (*Client) GetQRChannel 

func (cli *Client) GetQRChannel(ctx context.Context) (<-chan QRChannelItem, error)

GetQRChannel returns a channel that automatically outputs a new QR code when the previous one expires.

This must be called *before* Connect(). It will then listen to all the relevant events from the client.

The last value to be emitted will be a special string, either "success", "timeout" or "err-already-have-id", depending on the result of the pairing. The channel will be closed immediately after one of those.

func (*Client) GetUserDevices 

func (cli *Client) GetUserDevices(jids []types.JID) ([]types.JID, error)

GetUserDevices gets the list of devices that the given user has. The input should be a list of regular JIDs, and the output will be a list of AD JIDs. The local device will not be included in the output even if the user's JID is included in the input. All other devices will be included.

func (*Client) GetUserInfo 

func (cli *Client) GetUserInfo(jids []types.JID) (map[types.JID]types.UserInfo, error)

GetUserInfo gets basic user info (avatar, status, verified business name, device list).

func (*Client) IsConnected 

func (cli *Client) IsConnected() bool

IsConnected checks if the client is connected to the WhatsApp web websocket. Note that this doesn't check if the client is authenticated. See the IsLoggedIn field for that.

func (*Client) IsLoggedIn 

func (cli *Client) IsLoggedIn() bool

IsLoggedIn returns true after the client is successfully connected and authenticated on WhatsApp.

func (*Client) IsOnWhatsApp 

func (cli *Client) IsOnWhatsApp(phones []string) ([]types.IsOnWhatsAppResponse, error)

IsOnWhatsApp checks if the given phone numbers are registered on WhatsApp. The phone numbers should be in international format, including the `+` prefix.

func (*Client) JoinGroupWithInvite 

func (cli *Client) JoinGroupWithInvite(jid, inviter types.JID, code string, expiration int64) error

JoinGroupWithInvite joins a group using an invite message.

Note that this is specifically for invite messages, not invite links. Use JoinGroupWithLink for joining with chat.whatsapp.com links. 

func (cli *Client) JoinGroupWithLink(code string) (types.JID, error)

JoinGroupWithLink joins the group using the given invite link.

func (*Client) LeaveGroup 

func (cli *Client) LeaveGroup(jid types.JID) error

LeaveGroup leaves the specified group on WhatsApp.

func (*Client) Logout 

func (cli *Client) Logout() error

Logout sends a request to unlink the device, then disconnects from the websocket and deletes the local device store.

If the logout request fails, the disconnection and local data deletion will not happen either. If an error is returned, but you want to force disconnect/clear data, call Client.Disconnect() and Client.device.Delete() manually.

func (*Client) MarkRead 

func (cli *Client) MarkRead(ids []types.MessageID, timestamp time.Time, chat, sender types.JID) error

MarkRead sends a read receipt for the given message IDs including the given timestamp as the read at time.

The first JID parameter (chat) must always be set to the chat ID (user ID in DMs and group ID in group chats). The second JID parameter (sender) must be set in group chats and must be the user ID who sent the message.

func (*Client) Reconnect 

func (cli *Client) Reconnect() error

func (*Client) RemoveEventHandler 

func (cli *Client) RemoveEventHandler(id uint32) bool

RemoveEventHandler removes a previously registered event handler function. If the function with the given ID is found, this returns true.

N.B. Do not run this directly from an event handler. That would cause a deadlock because the event dispatcher holds a read lock on the event handler list, and this method wants a write lock on the same list. Instead run it in a goroutine: 

func (mycli *MyClient) myEventHandler(evt interface{}) {
    if noLongerWantEvents {
        go mycli.WAClient.RemoveEventHandler(mycli.eventHandlerID)
    }
}

func (*Client) RemoveEventHandlers 

func (cli *Client) RemoveEventHandlers()

RemoveEventHandlers removes all event handlers that have been registered with AddEventHandler 

func (cli *Client) ResolveBusinessMessageLink(code string) (*types.BusinessMessageLinkTarget, error)

ResolveBusinessMessageLink resolves a business message short link and returns the target JID, business name and text to prefill in the input field (if any).

The links look like https://wa.me/message/<code> or https://api.whatsapp.com/message/<code>. You can either provide the full link, or just the <code> part.

func (*Client) RevokeMessage 

func (cli *Client) RevokeMessage(chat types.JID, id types.MessageID) (time.Time, error)

RevokeMessage deletes the given message from everyone in the chat. You can only revoke your own messages, and if the message is too old, then other users will ignore the deletion.

This method will wait for the server to acknowledge the revocation message before returning. The return value is the timestamp of the message from the server.

func (*Client) SendChatPresence 

func (cli *Client) SendChatPresence(state types.ChatPresence, jid types.JID) error

SendChatPresence updates the user's typing status in a specific chat.

func (*Client) SendMessage 

func (cli *Client) SendMessage(to types.JID, id types.MessageID, message *waProto.Message) (time.Time, error)

SendMessage sends the given message.

If the message ID is not provided, a random message ID will be generated.

This method will wait for the server to acknowledge the message before returning. The return value is the timestamp of the message from the server.

func (*Client) SendPresence 

func (cli *Client) SendPresence(state types.Presence) error

SendPresence updates the user's presence status on WhatsApp.

You should call this at least once after connecting so that the server has your pushname. Otherwise, other users will see "-" as the name.

func (*Client) SetGroupAnnounce 

func (cli *Client) SetGroupAnnounce(jid types.JID, announce bool) error

SetGroupAnnounce changes whether the group is in announce mode (i.e. whether only admins can send messages).

func (*Client) SetGroupLocked 

func (cli *Client) SetGroupLocked(jid types.JID, locked bool) error

SetGroupLocked changes whether the group is locked (i.e. whether only admins can modify group info).

func (*Client) SetGroupName 

func (cli *Client) SetGroupName(jid types.JID, name string) error

SetGroupName updates the name (subject) of the given group on WhatsApp.

func (*Client) SetGroupTopic 

func (cli *Client) SetGroupTopic(jid types.JID, previousID, newID, topic string) error

SetGroupTopic updates the topic (description) of the given group on WhatsApp.

The previousID and newID fields are optional. If the previous ID is not specified, this will automatically fetch the current group info to find the previous topic ID. If the new ID is not specified, one will be generated with GenerateMessageID().

func (*Client) SetPassive 

func (cli *Client) SetPassive(passive bool) error

SetPassive tells the WhatsApp server whether this device is passive or not.

This seems to mostly affect whether the device receives certain events. By default, whatsmeow will automatically do SetPassive(false) after connecting.

func (*Client) SetProxyDialer 

func (cli *Client) SetProxyDialer(dialer proxy.Dialer)

func (*Client) SubscribePresence 

func (cli *Client) SubscribePresence(jid types.JID) error

SubscribePresence asks the WhatsApp servers to send presence updates of a specific user to this client.

After subscribing to this event, you should start receiving *events.Presence for that user in normal event handlers.

Also, it seems that the WhatsApp servers require you to be online to receive presence status from other users, so you should mark yourself as online before trying to use this function: 

cli.SendPresence(types.PresenceAvailable)

func (*Client) TryFetchPrivacySettings 

func (cli *Client) TryFetchPrivacySettings(ignoreCache bool) (*types.PrivacySettings, error)

TryFetchPrivacySettings will fetch the user's privacy settings, either from the in-memory cache or from the server.

func (*Client) UpdateGroupParticipants 

func (cli *Client) UpdateGroupParticipants(jid types.JID, participantChanges map[types.JID]ParticipantChange) (*waBinary.Node, error)

UpdateGroupParticipants can be used to add, remove, promote and demote members in a WhatsApp group.

func (*Client) Upload 

func (cli *Client) Upload(ctx context.Context, plaintext []byte, appInfo MediaType) (resp UploadResponse, err error)

Upload uploads the given attachment to WhatsApp servers.

type DownloadableMessage 

type DownloadableMessage interface {
	proto.Message
	GetDirectPath() string
	GetMediaKey() []byte
	GetFileSha256() []byte
	GetFileEncSha256() []byte
}

DownloadableMessage represents a protobuf message that contains attachment info.

type ElementMissingError 

type ElementMissingError struct {
	Tag string
	In  string
}

ElementMissingError is returned by various functions that parse XML elements when a required element is missing.

func (*ElementMissingError) Error 

func (eme *ElementMissingError) Error() string

type EventHandler 

type EventHandler interface {
	Handle(evt interface{})
}

EventHandler is a function that can handle events from WhatsApp.

type IQError 

type IQError struct {
	Code      int
	Text      string
	ErrorNode *waBinary.Node
	RawNode   *waBinary.Node
}

IQError is a generic error container for info queries

func (*IQError) Error 

func (iqe *IQError) Error() string

func (*IQError) Is 

func (iqe *IQError) Is(other error) bool

type MediaConn 

type MediaConn struct {
	Auth       string
	AuthTTL    int
	TTL        int
	MaxBuckets int
	FetchedAt  time.Time
	Hosts      []MediaConnHost
}

MediaConn contains a list of WhatsApp servers from which attachments can be downloaded from.

func (*MediaConn) Expiry 

func (mc *MediaConn) Expiry() time.Time

Expiry returns the time when the MediaConn expires.

type MediaConnHost 

type MediaConnHost struct {
	Hostname string
}

MediaConnHost represents a single host to download media from.

type MediaType 

type MediaType string

MediaType represents a type of uploaded file on WhatsApp. The value is the key which is used as a part of generating the encryption keys. 

const (
	MediaImage    MediaType = "WhatsApp Image Keys"
	MediaVideo    MediaType = "WhatsApp Video Keys"
	MediaAudio    MediaType = "WhatsApp Audio Keys"
	MediaDocument MediaType = "WhatsApp Document Keys"
	MediaHistory  MediaType = "WhatsApp History Keys"
	MediaAppState MediaType = "WhatsApp App State Keys"
)

The known media types

type ParticipantChange 

type ParticipantChange string
const (
	ParticipantChangeAdd     ParticipantChange = "add"
	ParticipantChangeRemove  ParticipantChange = "remove"
	ParticipantChangePromote ParticipantChange = "promote"
	ParticipantChangeDemote  ParticipantChange = "demote"
)

type QRChannelItem 

type QRChannelItem struct {
	// The type of event, "code" for new QR codes.
	// For non-code/error events, you can just compare the whole item to the event variables (like QRChannelSuccess).
	Event string
	// If the item is a pair error, then this field contains the error message.
	Error error
	// If the item is a new code, then this field contains the raw data.
	Code string
	// The timeout after which the next code will be sent down the channel.
	Timeout time.Duration
}

type RecentMessage 

type RecentMessage struct {
	Proto     *waProto.Message
	Timestamp time.Time
}

RecentMessage contains the info needed to re-send a message when another device fails to decrypt it.

type UploadResponse 

type UploadResponse struct {
	URL        string
	DirectPath string

	MediaKey      []byte
	FileEncSHA256 []byte
	FileSHA256    []byte
	FileLength    uint64
}

UploadResponse contains the data from the attachment upload, which can be put into a message to send the attachment.

Source Files

View all Source files

Directories

Path Synopsis
Package appstate implements encoding and decoding WhatsApp's app state patches.
 Package appstate implements encoding and decoding WhatsApp's app state patches.
lthash
Package lthash implements a summation based hash algorithm that maintains the integrity of a piece of data over a series of mutations.
 Package lthash implements a summation based hash algorithm that maintains the integrity of a piece of data over a series of mutations.
Package binary implements encoding and decoding documents in WhatsApp's binary XML format.
 Package binary implements encoding and decoding documents in WhatsApp's binary XML format.
proto
Package proto contains the compiled protobuf structs from WhatsApp's protobuf schema.
 Package proto contains the compiled protobuf structs from WhatsApp's protobuf schema.
token
Package token contains maps of predefined tokens that WhatsApp's binary XML encoding uses to save bytes when sending commonly used strings.
 Package token contains maps of predefined tokens that WhatsApp's binary XML encoding uses to save bytes when sending commonly used strings.
Package socket implements a subset of the Noise protocol framework on top of websockets as used by WhatsApp.
 Package socket implements a subset of the Noise protocol framework on top of websockets as used by WhatsApp.
Package store contains interfaces for storing data needed for WhatsApp multidevice.
 Package store contains interfaces for storing data needed for WhatsApp multidevice.
sqlstore
Package sqlstore contains an SQL-backed implementation of the interfaces in the store package.
 Package sqlstore contains an SQL-backed implementation of the interfaces in the store package.
Package types contains various structs and other types used by whatsmeow.
 Package types contains various structs and other types used by whatsmeow.
events
Package events contains all the events that whatsmeow.Client emits to functions registered with AddEventHandler.
 Package events contains all the events that whatsmeow.Client emits to functions registered with AddEventHandler.
util
cbcutil
CBC describes a block cipher mode.
 CBC describes a block cipher mode.
hkdfutil
Package hkdfutil contains a simple wrapper for golang.org/x/crypto/hkdf that reads a specified number of bytes.
 Package hkdfutil contains a simple wrapper for golang.org/x/crypto/hkdf that reads a specified number of bytes.
keys
Package keys contains a utility struct for elliptic curve keypairs.
 Package keys contains a utility struct for elliptic curve keypairs.
log
Package waLog contains a simple logger interface used by the other whatsmeow packages.
 Package waLog contains a simple logger interface used by the other whatsmeow packages.

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