BNB Chain Facilitates Telegram Mini-dApps Development

BNB
Chain
is
making
strides
in
the
Web3
ecosystem
by
facilitating
the
development
of
Telegram
mini-dApps,
which
can
be
started
as
Telegram
bots
and
are
accessible
directly
through
users’
Telegram
accounts.
This
new
development
aims
to
address
the
limitations
associated
with
using
TON
wallets
for
purchasing
in-app
virtual
assets,
according
to
the

BNB
Chain
Blog.

Deployment
Architecture

The
deployment
architecture
for
these
mini-dApps
involves
a
frontend,
backend,
and
database
hosted
by
game
developers.
The
architecture
can
integrate
with
various
wallet
widgets
like
WalletConnect
or
thirdweb.
The
mini-games
generally
do
not
depend
on
TON
wallets
but
can
integrate
with
EVM
chain
wallets
to
provide
a
better
user
experience.

Authentication
and
Initialization

Authentication
is
a
critical
first
step
for
Telegram
mini-games.
When
launched
by
the
game
bot,
the
game’s
frontend
retrieves
the
user’s
Telegram
information
via
the
initData
from
the
Telegram
SDK.
This
data
is
used
for
validating
authentication
and
creating
the
user’s
in-game
account
and
profile.

Developers
can
use
the ‘retrieveLaunchParams’
function
to
read
initData,
which
is
signed
with
the
secret
key
of
the
Telegram
bot.
The
initData
is
then
sent
to
the
game
backend
for
validation
using
libraries
like ‘@telegram-apps/init-data-node’.

Security
Considerations

Security
measures
include
checking
the
expiration
of
the
initialization
data,
which
is
set
to
1
day
by
default.
Additional
mechanisms,
such
as
verifying
the
auth_date
parameter,
are
recommended
to
prevent
the
misuse
of
stolen
initialization
data.

Session
Management

After
validating
initData,
the
account
ID
is
obtained,
and
communication
with
the
server
is
established
through
a
websocket.
This
connection
ensures
that
each
user
has
a
single
websocket
communication
channel
based
on
their
account
ID.
An
in-game
balance
management
system
can
also
be
implemented
to
reduce
latency
and
on-chain
interaction
costs.

For
games
on
BNB
Chain,
developers
can
use
wallet
widgets
to
allow
gamers
to
purchase
in-game
assets
directly,
eliminating
the
need
for
TON
wallet
transactions
and
bridging
costs.

In-Game
Balance
and
Order
Management

The
backend
synchronization
task
checks
for
pending
orders
and
updates
relevant
information
after
each
login
or
at
fixed
polling
times.
When
a
gamer
creates
a
new
order,
the
frontend
saves
the
transaction
information,
and
the
backend
tracks
the
on-chain
data
through
an
indexer.
Once
the
transaction
is
confirmed,
the
backend
notifies
the
frontend,
ensuring
a
seamless
user
experience.

Developing
Telegram
mini-dApps
on
BNB
Chain
simplifies
the
process
and
reduces
dependency
on
TON
wallets
and
bridges.
BNB
Chain
users
can
use
their
own
wallets
to
purchase
virtual
assets,
with
all
authentication,
user
validation,
and
indexing
services
relying
on
the
Telegram
platform.

Image
source:
Shutterstock