remove liquidity example #1290

ankitsaini9 · 2022-05-20T08:16:35Z

Motivation

Solution

PR Checklist

Added Tests
Added Documentation
Updated the changelog

ankitsaini9 · 2022-05-20T08:17:39Z

added an example of removing liquidity.

mattsse

thanks for this,
couple nits before we can add this

mattsse · 2022-05-20T09:14:37Z

examples/remove_liquidity.rs

+   let wallet = "725fd1619b2653b7ff1806bf29ae11d0568606d83777afd5b1f2e649bd5132a9".parse::<LocalWallet>()?;
+
+   // (ugly way to write the ABI inline, you can otherwise read it from a file)
+   let pair_abi: Abi = serde_json::from_str(r#"[{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint112","name":"reserve0","type":"uint112"},{"indexed":false,"internalType":"uint112","name":"reserve1","type":"uint112"}],"name":"Sync","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":true,"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"MINIMUM_LIQUIDITY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"burn","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint112","name":"_reserve0","type":"uint112"},{"internalType":"uint112","name":"_reserve1","type":"uint112"},{"internalType":"uint32","name":"_blockTimestampLast","type":"uint32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_token0","type":"address"},{"internalType":"address","name":"_token1","type":"address"}],"name":"initialize","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"kLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"liquidity","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"sync","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}]"#)?;


given that the example only calls two functions I'd rather prefer a simple abigen! human readable example than pulling in the complete abi here

Yeah agreed - I'd define this using abigen as seen in the example here https://github.com/gakonst/ethers-rs/blob/master/examples/contract_human_readable.rs#L11

mattsse · 2022-05-20T09:14:55Z

examples/remove_liquidity.rs

+
+        let tokena = "0xc843a84f06b55664955fc1b2d368d7c4b1dff8f5".parse::<Address>()?;
+        let tokenb = "0x082442ad36236505c63597b5bae89bdf6298a5a9".parse::<Address>()?;
+        let amounta_min = U256::from_dec_str("0")?;


Suggested change

let amounta_min = U256::from_dec_str("0")?;

let amounta_min = U256::zero();

mattsse · 2022-05-20T09:15:11Z

examples/remove_liquidity.rs

+        let tokena = "0xc843a84f06b55664955fc1b2d368d7c4b1dff8f5".parse::<Address>()?;
+        let tokenb = "0x082442ad36236505c63597b5bae89bdf6298a5a9".parse::<Address>()?;
+        let amounta_min = U256::from_dec_str("0")?;
+        let amountb_min = U256::from_dec_str("0")?;


Suggested change

let amountb_min = U256::from_dec_str("0")?;

let amountb_min = U256::zero();

mattsse · 2022-05-20T09:15:51Z

examples/remove_liquidity.rs

+            .method::<_, H256>("approve", (swap_address, liquidity.clone()))?;
+
+        let pending_tx = call.send().await?;
+        let receipt = pending_tx.confirmations(6).await?;


6 confirmations seem excessive in an example

mattsse · 2022-05-20T09:16:01Z

examples/remove_liquidity.rs

+
+        let contract_with_wallet = pair_contract.connect(Arc::clone(&client));
+
+        let liquidity = U256::from_dec_str("100")?;


Suggested change

let liquidity = U256::from_dec_str("100")?;

let liquidity = U256::zero();

mattsse · 2022-05-20T09:16:13Z

examples/remove_liquidity.rs

+
+    println!("token price in % = {}", price);
+
+    // if (price > 10){


Suggested change

// if (price > 10){

mattsse · 2022-05-20T09:16:39Z

examples/remove_liquidity.rs

+        let amounta_min = U256::from_dec_str("0")?;
+        let amountb_min = U256::from_dec_str("0")?;
+        let owner_aadress = "0xF6A996Ce046f5B65C2C3183e9BcbE22d001441F2".parse::<Address>()?;
+        let deadline = U256::from_dec_str("1950886733")?;


Suggested change

let deadline = U256::from_dec_str("1950886733")?;

let deadline: U256 = 1950886733u64.into();

mattsse · 2022-05-20T09:17:07Z

examples/remove_liquidity.rs

+//    let liquidity = U256::from_dec_str("50000000")?;
+//    println!("data {}", liquidity);


Suggested change

// let liquidity = U256::from_dec_str("50000000")?;

// println!("data {}", liquidity);

mattsse · 2022-05-20T09:17:30Z

examples/remove_liquidity.rs

@@ -0,0 +1,94 @@
+use ethers::{core::{


let's add brief description what this example does

ankitsaini9

Made all the necessary changes except ABI. There are a lot of functions that can be used. For example, adding liquidity and swapping tokens that's why I kept the ABI.

mattsse

lgtm

gakonst · 2022-05-22T00:50:56Z

examples/remove_liquidity.rs

+
+
+// Remove liquidity from uniswap V2. 
+// This example will remove 500 liquidity of 2 test tokens, TA and TB on rinkbay testnet.


Suggested change

// This example will remove 500 liquidity of 2 test tokens, TA and TB on rinkbay testnet.

// This example will remove 500 liquidity of 2 test tokens, TA and TB on Rinkeby testnet.

gakonst · 2022-05-22T00:51:10Z

examples/remove_liquidity.rs

+
+// Remove liquidity from uniswap V2. 
+// This example will remove 500 liquidity of 2 test tokens, TA and TB on rinkbay testnet.
+// THis example uses pair contract and uniswap swap contract to remove liquidity.   


Suggested change

// THis example uses pair contract and uniswap swap contract to remove liquidity.

// This example uses pair contract and uniswap swap contract to remove liquidity.

gakonst · 2022-05-22T00:52:21Z

examples/remove_liquidity.rs

+   let wallet = "725fd1619b2653b7ff1806bf29ae11d0568606d83777afd5b1f2e649bd5132a9".parse::<LocalWallet>()?;
+
+   // (ugly way to write the ABI inline, you can otherwise read it from a file)
+   let pair_abi: Abi = serde_json::from_str(r#"[{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint112","name":"reserve0","type":"uint112"},{"indexed":false,"internalType":"uint112","name":"reserve1","type":"uint112"}],"name":"Sync","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":true,"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"MINIMUM_LIQUIDITY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"burn","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint112","name":"_reserve0","type":"uint112"},{"internalType":"uint112","name":"_reserve1","type":"uint112"},{"internalType":"uint32","name":"_blockTimestampLast","type":"uint32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_token0","type":"address"},{"internalType":"address","name":"_token1","type":"address"}],"name":"initialize","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"kLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"liquidity","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"sync","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}]"#)?;


Yeah agreed - I'd define this using abigen as seen in the example here https://github.com/gakonst/ethers-rs/blob/master/examples/contract_human_readable.rs#L11

ankitsaini9 · 2022-05-23T06:26:20Z

Changes are done. I intentionally added ABI in this form as I wanted to create an ABI system similar to ether.js. The user can directly use the whole ABI of the contract from explorer without writing the ABI in human-readable form. The user can use any contract. Also, if the user wants to use other functions as well, there is no need to write the ABI in human-readable form every time. If you want, I can put this ABI in a JSON file.

mattsse · 2022-05-23T18:54:52Z

examples/remove_liquidity.rs

@@ -10,8 +10,8 @@ use eyre::Result;


 // Remove liquidity from uniswap V2. 
-// This example will remove 500 liquidity of 2 test tokens, TA and TB on rinkbay testnet.
-// THis example uses pair contract and uniswap swap contract to remove liquidity.   
+// This example will remove 500 liquidity of 2 test tokens, TA and TB on Rinkbay testnet.


Suggested change

// This example will remove 500 liquidity of 2 test tokens, TA and TB on Rinkbay testnet.

// This example will remove 500 liquidity of 2 test tokens, TA and TB on Rinkeby testnet.

gakonst

redid the PR to be a little cleaner, thanks for the contribution!

* remove liquidity example * remove liquidity exmaple * remove liquidity exmaple * remove liquidity exmaple * chore: tidy up remove-liquidity example * chore: fix typo Co-authored-by: ankit <ankitgci1@gamil.com> Co-authored-by: Georgios Konstantopoulos <me@gakonst.com>

remove liquidity example

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ankit added 2 commits May 20, 2022 15:29

remove liquidity exmaple

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remove liquidity exmaple

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remove liquidity exmaple

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chore: tidy up remove-liquidity example

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chore: fix typo

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gakonst merged commit 0897336 into gakonst:master May 23, 2022

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remove liquidity example #1290

remove liquidity example #1290

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	let amounta_min = U256::from_dec_str("0")?;
	let amounta_min = U256::zero();

	let amountb_min = U256::from_dec_str("0")?;
	let amountb_min = U256::zero();


		let contract_with_wallet = pair_contract.connect(Arc::clone(&client));

		let liquidity = U256::from_dec_str("100")?;

	let liquidity = U256::from_dec_str("100")?;
	let liquidity = U256::zero();


		println!("token price in % = {}", price);

		// if (price > 10){

	let deadline = U256::from_dec_str("1950886733")?;
	let deadline: U256 = 1950886733u64.into();

		// let liquidity = U256::from_dec_str("50000000")?;
		// println!("data {}", liquidity);



		// Remove liquidity from uniswap V2.
		// This example will remove 500 liquidity of 2 test tokens, TA and TB on rinkbay testnet.

	// THis example uses pair contract and uniswap swap contract to remove liquidity.
	// This example uses pair contract and uniswap swap contract to remove liquidity.

remove liquidity example #1290

remove liquidity example #1290

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ankitsaini9 commented May 20, 2022

Motivation

Solution

PR Checklist

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