Yield farming concepts in Blockchain / Solidity - Step-by-Step Execution

Concept Flow - Yield farming concepts

Provide Liquidity

↓

Receive LP Tokens

↓

Stake LP Tokens in Farm

↓

Earn Rewards Over Time

↓

Claim Rewards

↓

Withdraw LP Tokens

↓

Redeem Liquidity

Yield farming involves providing liquidity, staking tokens, earning rewards, and then claiming and withdrawing them.

Execution Sample

Blockchain / Solidity

1. Provide liquidity to pool
2. Receive LP tokens
3. Stake LP tokens in farm
4. Earn rewards over time
5. Claim rewards
6. Withdraw LP tokens
7. Redeem liquidity

This sequence shows the basic steps of yield farming from providing liquidity to withdrawing it.

Execution Table

Step	Action	Tokens Held	Rewards Earned	Notes
1	Provide liquidity	User tokens - X, LP tokens + X	0	User deposits tokens into pool, receives LP tokens
2	Stake LP tokens	LP tokens - X, Staked LP tokens + X	0	User stakes LP tokens in farming contract
3	Wait time passes	Staked LP tokens	Rewards accumulate	Rewards grow based on staked amount and time
4	Claim rewards	Staked LP tokens	Rewards reset to 0	User claims earned rewards
5	Withdraw LP tokens	LP tokens + X, Staked LP tokens - X	0	User unstakes LP tokens
6	Redeem liquidity	User tokens + X, LP tokens - X	0	User redeems original tokens from pool
7	End	User tokens	0	Yield farming cycle complete

💡 User completes all steps and ends with original tokens plus earned rewards.

Variable Tracker

Variable	Start	After Step 1	After Step 2	After Step 3	After Step 4	After Step 5	After Step 6	Final
User tokens	100	100 - X	100 - X	100 - X	100 - X + rewards	100 - X + rewards	100 + rewards	100 + rewards
LP tokens	0	X	0	0	0	X	0	0
Staked LP tokens	0	0	X	X	X	0	0	0
Rewards	0	0	0	growing	claimed (0)	0	0	0

Key Moments - 3 Insights

Why do users receive LP tokens after providing liquidity?

LP tokens represent the user's share in the liquidity pool and are needed to stake for farming rewards, as shown in execution_table step 1 and 2.

What happens to rewards when the user claims them?

Rewards reset to zero after claiming, as seen in execution_table step 4 where rewards are collected and reset.

Why must users stake LP tokens to earn rewards?

Staking LP tokens locks them in the farm contract to track and distribute rewards, shown in execution_table step 2 and 3.

Visual Quiz - 3 Questions

Look at the execution_table, what tokens does the user hold immediately after providing liquidity (Step 1)?

A User tokens increased, LP tokens decreased

B User tokens decreased, LP tokens increased

C User tokens and LP tokens unchanged

D Only rewards increased

💡 Hint

Check execution_table row for Step 1 under Tokens Held.

At which step do rewards start accumulating?

A Step 1

B Step 5

C Step 3

D Step 6

💡 Hint

Look at execution_table row Step 3 under Rewards Earned.

If the user never stakes LP tokens, what happens to rewards?

A Rewards do not accumulate

B Rewards accumulate normally

C Rewards double

D Rewards reset automatically

💡 Hint

Refer to key_moments about staking LP tokens to earn rewards.

Concept Snapshot

Yield farming steps:
1. Provide liquidity and get LP tokens
2. Stake LP tokens in farm
3. Earn rewards over time
4. Claim rewards
5. Withdraw LP tokens
6. Redeem liquidity
Rewards depend on staked LP tokens and time.

Full Transcript

Yield farming is a process where a user provides tokens to a liquidity pool and receives LP tokens representing their share. They then stake these LP tokens in a farming contract to earn rewards over time. Rewards accumulate while LP tokens are staked. The user can claim rewards anytime, which resets the reward count. Finally, the user withdraws their staked LP tokens and redeems their original tokens from the pool. This cycle allows users to earn extra tokens by helping liquidity pools.

Practice

1. What is the main purpose of yield farming in blockchain?

easy

A. To trade cryptocurrencies on exchanges

B. To earn rewards by staking cryptocurrency in pools

C. To mine new cryptocurrency coins

D. To create new blockchain networks

Solution

1. Step 1: Understand yield farming basics

   Yield farming involves staking crypto assets to earn rewards.

2. Step 2: Compare options to yield farming

   Mining, trading, and creating blockchains are different activities.

3. Final Answer:

   To earn rewards by staking cryptocurrency in pools -> Option B

4. Quick Check:

   Yield farming = earning rewards by staking [OK]

Hint: Yield farming means staking crypto to earn rewards [OK]

Common Mistakes:

• Confusing yield farming with mining
• Thinking yield farming is trading
• Believing yield farming creates new blockchains

2. Which of the following is the correct way to describe a yield farming pool?

easy

A. A software to trade cryptocurrencies instantly

B. A wallet to store cryptocurrencies securely

C. A blockchain that creates new tokens automatically

D. A place where users stake crypto to earn rewards

Solution

1. Step 1: Define a yield farming pool

   A pool is where users stake crypto to earn rewards.

2. Step 2: Eliminate unrelated options

   Wallets store crypto, blockchains create tokens, and software trades crypto.

3. Final Answer:

   A place where users stake crypto to earn rewards -> Option D

4. Quick Check:

   Pool = staking place for rewards [OK]

Hint: Pools are for staking crypto to earn rewards [OK]

Common Mistakes:

• Mixing pools with wallets
• Thinking pools create tokens
• Confusing pools with trading software

3. Consider this simplified code snippet for calculating yield farming rewards:

def calculate_rewards(staked_amount, reward_rate):
    return staked_amount * reward_rate

print(calculate_rewards(1000, 0.05))

What is the output of this code?

medium

A. 50.0

B. 5

C. 1000

D. 0.05

Solution

1. Step 1: Understand the function calculation

   The function multiplies staked_amount (1000) by reward_rate (0.05).

2. Step 2: Calculate the multiplication

   1000 * 0.05 = 50.0

3. Final Answer:

   50.0 -> Option A

4. Quick Check:

   1000 * 0.05 = 50 [OK]

Hint: Multiply staked amount by reward rate [OK]

Common Mistakes:

• Confusing multiplication with addition
• Using reward rate as output directly
• Mixing up staked amount and reward rate

4. Find the error in this yield farming reward calculation code:

def calculate_rewards(staked_amount, reward_rate):
    rewards = staked_amount + reward_rate
    return rewards

print(calculate_rewards(1000, 0.05))

medium

A. Incorrect function name

B. Missing return statement

C. Using addition instead of multiplication for rewards

D. Wrong print syntax

Solution

1. Step 1: Review the reward calculation logic

   The code adds staked_amount and reward_rate instead of multiplying.

2. Step 2: Understand correct reward formula

   Rewards should be staked_amount * reward_rate, not addition.

3. Final Answer:

   Using addition instead of multiplication for rewards -> Option C

4. Quick Check:

   Rewards = stake * rate, not stake + rate [OK]

Hint: Rewards = stake times rate, not plus rate [OK]

Common Mistakes:

• Adding instead of multiplying rewards
• Forgetting to return value
• Misnaming functions
• Incorrect print usage

5. You want to calculate total rewards from multiple pools with different stakes and rates:

pools = {"PoolA": (1000, 0.05), "PoolB": (2000, 0.03), "PoolC": (1500, 0.04)}
total_rewards = sum(stake * rate for stake, rate in pools.values())
print(total_rewards)

What is the output of this code?

hard

A. 170.0

B. 0.12

C. 4500

D. SyntaxError

Solution

1. Step 1: Calculate rewards for each pool

   PoolA: 1000*0.05=50, PoolB: 2000*0.03=60, PoolC: 1500*0.04=60

2. Step 2: Sum all rewards

   Total = 50 + 60 + 60 = 170

3. Step 3: Verify code output

   The code prints the sum of rewards, which is 170.0 (float)

4. Final Answer:

   170.0 -> Option A

5. Quick Check:

   Sum of all pool rewards = 170.0 [OK]

Hint: Sum stake * rate for each pool to get total rewards [OK]

Common Mistakes:

• Adding rates instead of multiplying
• Forgetting to sum all pools
• Expecting integer output instead of float
• Misreading dictionary values