The price impact calculation was not normalizing token decimals, so it could produce wrong results for tokens that have less or more than 18 decimals. This has been fixed in this release.

This small update adds a feature that will warn if the price impact of a transaction is predicted to be high (configurable via max_price_impact, default 5%).

If the price impact is above this value when the order executes, the transaction will be skipped and order removed, to prevent trading at a very unfavorable price.

Before upgrading, add the max_price_impact entry in your config file (see README or example config file).

This substantial release adds long-await features requested by users.

After pulling this update, please run poetry install --no-dev to upgrade all dependencies!

• A new setting price_in_usd allows to display, input and track prices in USD/token instead of BNB/token
  • All existing order prices will be automatically updated when the bot is restarted after changing this parameter (using current BNB price)
  • Orders are still buying using BNB, and selling for BNB. Customization of this behavior will come in a later update.
• Orders can now be edited with the /editorder command. Price, trailing stop loss callback, amount, gas and slippage can be edited for an existing order.
• Codebase has been cleaned up and pre-commit hooks are now available to format code before allowing a commit. Install using pre-commit install after upgrading the dependencies if you wish to contribute to this repository.

Make sure to run poetry install --no-dev if you upgrade from a previous version.

This version changes the following:

• the behaviour when a high gas estimate is returned by the RPC: instead of proceeding with an acceptable gas limit which would likely be exceeded, leading to a failed transaction, the order is now cancelled when gas usage would reach above 2.5M gas units. Gas-expensive tokens should thus be traded manually on pancakeswap to allow for fine-tuning of the gas price.
• dependencies have been updated, which removes some warning messages about deprecated features
• added support for a .env file in the root directory (same folder as the pyproject.toml file) to define the wallet private key, instead of using other means like prepending it to the poetry command or inserting it in the service file
• added chart link for DexScreener

This version builds up on the last release and adds support for USDT pairs on Binance Smart Chain.

Now, whenever a buy or sell order is triggered, the following swap paths are compared, and the one with the largest output is chosen:

• For buying:
  • BNB -> Token (using BNB liq)
  • BNB -> BUSD -> Token (using BUSD liq)
  • BNB -> USDT-> Token (using USDT liq)
• For selling:
  • Token -> BNB (using BNB liq)
  • Token -> BUSD -> BNB (using BUSD liq)
  • Token -> USDT -> BNB (using USDT liq)

This release adds support to trade against both BNB and BUSD liquidity (more tokens could be added easily if needed) via https://github.com/beeb/pancaketrade/pull/25 .

The price displayed in status messages is taken from the largest LP, counted by number of tokens in the pool. It is believed that this represents the most stable price for this token and thus is the better one to use for visual representation. At the moment when the script buys or sells, the price for each of the following swapping paths will be compared, and the best will be selected (which maximizes the output):

• For buying:
  • BNB -> Token (using BNB liq)
  • BNB -> BUSD -> Token (using BUSD liq)
• For selling:
  • Token -> BNB (using BNB liq)
  • Token -> BUSD -> BNB (using BUSD liq)

Please note that the script still uses your BNB to buy, and still gives you back BNB when selling. Only the swapping path (which liquidity is used) has changed. When using non-BNB liquidity, the script automatically does 2 swaps in one single transaction, exactly like the official PancakeSwap client does.

Support for PcS v1 has been dropped to keep complexity down.

This update adds the following:

• Each token has now a BSCScan link that shows the token transaction history for your wallet
• Dollar value is shown in the confirmation message after a successful sell
• Decimal slippage is now supported, with up to 2 digits after the decimal point

This release tweaks a few mechanics that should improve performance when the network is congested:

• Increased default gas offset for "Buy/Sell" (+10.1 gwei) and "Sell all" (+20.1 gwei) commands.
• Increased default gas offset for approval (+0.1 gwei), previously was network default which could be very slow these days
• Added link to wallet's BSCScan page in the summary message
• Removed deprecated PancakeSwap function swapExactETHForTokens and swapExactTokensForETH as they do not respect slippage when token has transaction taxes.

This release adds the following new features:

• Added manual approval command /approve to be used at any time (to approve for selling on pancakeswap). It will use the best pancakeswap version for selling at the time of the command. A button to manually trigger approval also shows when a new unapproved token is added.

Improvements:

• The artificial waiting time after approval has been reduced from 10s to 3s. This delay is to ensure the transaction propagated and that a subsequent approval check will return true.
• The nonce for a new transaction is checked just before the transaction is sent, minimizing the risk to use the wrong nonce if there was a transaction shortly before.
• The gas price gwei value in the new order confirmation message was shown in scientific notation, now it's floating point.

Bugfixes:

• Fixed "0e-35" BNB balance value in status messages when the balance is zero tokens.

This version brings the following changes and improvements:

• The bot now supports listing WBNB holdings (special case due to absence of LP), but wrapping/unwrapping is not yet supported
• The swapExactETHForTokens method is now preferred over the swapExactETHForTokensSupportingFeeOnTransferTokens if gas estimation works.
• The gas limit failsafe has been raised to 2,000,000 gas units to accommodate new contracts with complex reflection schemes
• Logging when gas estimation failed is now more verbose and indicates the potential reason being insufficient slippage

This release improves on some small things and fixes a minor bug:

• Added support for Basic HTTP Auth when using a custom RPC URI (see user_data/config.example.yml)
• Fixed dex.guru links which did not support URIs without the -bsc suffix anymore
• Added link for DEXT (dextools.io)
• Normalized amounts display in status messages to have the code markup everywhere (easier to copy-paste on some clients)
• Added BNB price in summary status message
• Fixed orders' type icon in /removeorder conversation and added list of orders at order selection step.

This released focused on ironing out a few bugs that were discovered.

Fixed:

• A bug was present when the configurable monitor_interval was set to a value not divisible by 5. https://github.com/beeb/pancaketrade/issues/9
• The config's RPC-URI validation regex did not accept URIs without a port number https://github.com/beeb/pancaketrade/commit/45a24e270a43ebe5b55442f639a9313fd39c5189
• When an token returns a zero price, due to not having a PcS LP or the LP being empty, creating and order would spam messages in the chat every monitor_interval seconds. This message is now only logged in console. https://github.com/beeb/pancaketrade/commit/db5d03d7e58bd48076d2dda9abf715a817edb06e
• The prompt for the wallet's private key, when not defined in environment, was displaying the now removed wallet address config item, resulting in a cyclic dependency. This has been fixed. https://github.com/beeb/pancaketrade/commit/08f1b985f2daf7e685140ddf74623e4a75c63833
• There was a division by zero error when user edits effective buy price for a token that has zero balance https://github.com/beeb/pancaketrade/commit/2687e8bef20d89b66c9ca42610cdd699f6ce525f

Modified:

• The python-telegram-bot library dependency has been upgraded to latest
• Added emojis to the buttons for order type selection and display https://github.com/beeb/pancaketrade/issues/4#issuecomment-859256552

This version includes the following changes:

• The summary status message now includes the wallet's BNB balance, total balance of tokens in BNB, and the sum of both
• The status messages have been optimized to make fewer network requests, thus being overall faster now
• The way the bot handles transaction receipts has been improved, to use the event data defined in the ABI for each contract (this is used to extract the amount of received tokens/BNB).
• The config file doesn't include the wallet address anymore, as it can be inferred from the private key which is anyway provided. You can remove the wallet item in your config file. This item, as well as bscscan_api_key, are deprecated and will raise an error in version 1.0.0.

This version now adds automatic docker builds. Refer to the Readme for instructions on how to run this bot using docker.

A bug was also fixed, whereby the effective buy price after a transaction was not shown in the token status message until another order was added to that token, or the bot was restarted. This is now fixed.

This version fixes a critical bug where status messages would not update anymore.

Links to Poocoin, Bogged and Dex.Guru charts are now displayed for each token.

IMPORTANT MIGRATION NOTE

If you are updating from 0.3.x, please note that you need to move your config.yml and pancaketrade.db files inside the new user_data directory before starting the bot. This was done in preparation for the release of docker images.

This version comes with a few very nice changes:

• Added missing /sellall command to the commands list dropdown
• Prepared files for future docker release, please don't use yet as it's not been thoroughly tested
• Approval requests now check proper gas limit estimate before submitting transaction (in the past, a hardcoded value was used)
• Revamped /edittoken command to have a branching flow instead of linear.
• Added option to manually edit the effective buy price for each token, via the /edittoken command. Can be calculated from BNB amount or directly input as price value (https://github.com/beeb/pancaketrade/issues/2)
• Total value of all tokens is shown in the last message of the status command.

This version adds price tracking to the bot (https://github.com/beeb/pancaketrade/issues/2).

When making a buy order, the effective buy price (after tax) gets saved together with the token record in the database. In the status message, the effective buy price, as well as difference to current price (in percent), is shown, allowing to see if the position increased or decreased since buy.

When a sell order is made, this price is not changed. However, if a second buy order happens, a weighted average between the new effective price and old effective price is calculated and replaces the old price.

This update and 0.2.3 from earlier today improve and normalize the token amounts rendering.

What's more, BscScan API is no longer needed as the script now uses local default ABIs for all contracts. This should be faster and more reliable. We only use a couple of functions for tokens and these are defined in the BEP-20 token interface so all tokens should have them implemented. This makes it seamless to interact with proxy contracts also.

If you have the bscscan_api_key entry in your config file, you can remove it now.

The auto-approval process is now smarter. If a buy order is placed, the tokens are first bought, then the wallet is approved for selling. If a sell order is placed while the address is not yet approved, it's mandatory to approve first, before selling.

This is only done once per token and per pancakeswap version. The process is smart and only approves on the version that will be used for selling at the best price (when both versions are available).

Added "Buy/sell now" and "Create order" buttons to the "Token added" confirmation message, for even faster buy after adding a new token.

There was a bug with the "cancel" button on the list of tokens that would catch all cancel commands for other commands.

Version 0.2.0 brings a lot of small changes to how interaction works:

Added:

• Command to edit token icon and default slippage

Fixed:

• Incorrect BNB output after sale due to multiple withdrawals within one function was fixed. Now only considering the last "Withdraw" call.
• Added missing order ID in order creation confirmation message

Modified:

• Removed 10 or 5 minutes timeout on conversations. Conversations now persist as long as the bot runs. Restart removes all ongoing conversations.
• Inline buttons are now only shown on the last status message to make the list more compact
• All commands now ask for the token to use in the first step.
• After a successful transaction, the order that was deleted in shown before the output amount is displayed. This way, the last message is the transaction outcome.
• Red and green icons for orders in the status messages are now displayed next to the order type. A more discreet transaction icon is shown at the start of each order line to indent them
• Better instruction when the command /order is used with missing argument

This version adds a new command /buysell as a shortcut to the various "Buy/sell now..." buttons on each token status message. The command shows a list of buttons with all tokens.

When creating an order, the amount of tokens to sell or BNB to use for buying can be specified in percentage of the balance when using the % symbol as a suffix.

The LP selection code had a problem where tokens with a small amount of liquidity (as defined in the config file) returned a price of zero instead of forcing the use of whatever liquidity is available. This has been fixed.

A new config item update_messages allows to turn on periodical update of status messages (currently every 15 seconds).

This version adds the /addorder and /address commands.

• /addorder: allows to start order creation process for any token. The first prompt asks for which token, the rest of the process is identical to clicking one of the "Create order..." buttons.
• /address: used to get the contract address for a token, which needs to be selected in the first prompt. The address can be copied to clipboard by simply clicking/tapping on it on most Telegram clients.

Some UI improvements, orders for a token are now sorted by activation price.

This version adds the option to input the limit price for an order as a multiple of the current token price.

This is useful when creating orders just after buying, to sell at a given profit target.

Example: the token price is 0.01 BNB per token. The user inputs 2.5x as the limit price. The order will activate when the price is 0.025 BNB per token.

Various improvements to the message formatting.

This version now correctly handles gas price estimates for swap transactions.

The script now also uses swapExactTokensForETHSupportingFeeOnTransferTokens and the reverse equivalent if possible, and falls back to swapExactTokensForETH if gas price estimation fails.

This version fixes a couple of small bugs with database interaction and visual stuff.

This is the first release of the bot which is now open-source.