imtoken will never ask for your seed phrase, private key or verification code. Always review the address, network and request details before transferring, signing or approving.

Smart Contract Interaction

Learn the basics of smart contract calls, parameters, gas, signing, and technical risks.

On this pageWhat contract interaction meansRead vs write callsParameters and permissionsGas and failuresMalicious contract risks

What contract interaction means

Connecting a DApp only establishes an interaction channel. It does not mean later signatures, approvals, or transactions should be trusted automatically. Review the domain, contract, permission scope, asset amount, and intended on-chain effect every time a new request appears. For what contract interaction means, separate the object you are acting on, the active network, the expected outcome, and the evidence you can independently verify. Do not rely on interface wording alone; use addresses, transaction hashes, explorers, and contract details where appropriate. For this topic, a useful sequence is: understand the concept, check before acting, submit only when the details are clear, verify on-chain status, and review any permissions that remain afterward.

A practical check

Connecting a DApp only establishes an interaction channel. It does not mean later signatures, approvals, or transactions should be trusted automatically. Review the domain, contract, permission scope, asset amount, and intended on-chain effect every time a new request appears. For what contract interaction means, separate the object you are acting on, the active network, the expected outcome, and the evidence you can independently verify. Do not rely on interface wording alone; use addresses, transaction hashes, explorers, and contract details where appropriate. For this topic, a useful sequence is: understand the concept, check before acting, submit only when the details are clear, verify on-chain status, and review any permissions that remain afterward.

Before proceeding, confirm the network, the address or contract, the amount or permission scope, and the expected result. Keep sensitive recovery information offline and never send a seed phrase, private key, or verification code to another person.

Read vs write calls

Connecting a DApp only establishes an interaction channel. It does not mean later signatures, approvals, or transactions should be trusted automatically. Review the domain, contract, permission scope, asset amount, and intended on-chain effect every time a new request appears. For read vs write calls, separate the object you are acting on, the active network, the expected outcome, and the evidence you can independently verify. Do not rely on interface wording alone; use addresses, transaction hashes, explorers, and contract details where appropriate. For this topic, a useful sequence is: understand the concept, check before acting, submit only when the details are clear, verify on-chain status, and review any permissions that remain afterward.

A practical check

Connecting a DApp only establishes an interaction channel. It does not mean later signatures, approvals, or transactions should be trusted automatically. Review the domain, contract, permission scope, asset amount, and intended on-chain effect every time a new request appears. For read vs write calls, separate the object you are acting on, the active network, the expected outcome, and the evidence you can independently verify. Do not rely on interface wording alone; use addresses, transaction hashes, explorers, and contract details where appropriate. For this topic, a useful sequence is: understand the concept, check before acting, submit only when the details are clear, verify on-chain status, and review any permissions that remain afterward.

Before proceeding, confirm the network, the address or contract, the amount or permission scope, and the expected result. Keep sensitive recovery information offline and never send a seed phrase, private key, or verification code to another person.

Parameters and permissions

Connecting a DApp only establishes an interaction channel. It does not mean later signatures, approvals, or transactions should be trusted automatically. Review the domain, contract, permission scope, asset amount, and intended on-chain effect every time a new request appears. For parameters and permissions, separate the object you are acting on, the active network, the expected outcome, and the evidence you can independently verify. Do not rely on interface wording alone; use addresses, transaction hashes, explorers, and contract details where appropriate. For this topic, a useful sequence is: understand the concept, check before acting, submit only when the details are clear, verify on-chain status, and review any permissions that remain afterward.

A practical check

Connecting a DApp only establishes an interaction channel. It does not mean later signatures, approvals, or transactions should be trusted automatically. Review the domain, contract, permission scope, asset amount, and intended on-chain effect every time a new request appears. For parameters and permissions, separate the object you are acting on, the active network, the expected outcome, and the evidence you can independently verify. Do not rely on interface wording alone; use addresses, transaction hashes, explorers, and contract details where appropriate. For this topic, a useful sequence is: understand the concept, check before acting, submit only when the details are clear, verify on-chain status, and review any permissions that remain afterward.

Before proceeding, confirm the network, the address or contract, the amount or permission scope, and the expected result. Keep sensitive recovery information offline and never send a seed phrase, private key, or verification code to another person.

Gas and failures

Connecting a DApp only establishes an interaction channel. It does not mean later signatures, approvals, or transactions should be trusted automatically. Review the domain, contract, permission scope, asset amount, and intended on-chain effect every time a new request appears. Gas prices can change with congestion, transaction complexity, and protocol conditions. A pending transaction is not the same as a final transaction, so verify the hash and confirmation state on the correct network before relying on the result. For this topic, a useful sequence is: understand the concept, check before acting, submit only when the details are clear, verify on-chain status, and review any permissions that remain afterward.

A practical check

Connecting a DApp only establishes an interaction channel. It does not mean later signatures, approvals, or transactions should be trusted automatically. Review the domain, contract, permission scope, asset amount, and intended on-chain effect every time a new request appears. Gas prices can change with congestion, transaction complexity, and protocol conditions. A pending transaction is not the same as a final transaction, so verify the hash and confirmation state on the correct network before relying on the result. For this topic, a useful sequence is: understand the concept, check before acting, submit only when the details are clear, verify on-chain status, and review any permissions that remain afterward.

Before proceeding, confirm the network, the address or contract, the amount or permission scope, and the expected result. Keep sensitive recovery information offline and never send a seed phrase, private key, or verification code to another person.

Malicious contract risks

Connecting a DApp only establishes an interaction channel. It does not mean later signatures, approvals, or transactions should be trusted automatically. Review the domain, contract, permission scope, asset amount, and intended on-chain effect every time a new request appears. For malicious contract risks, separate the object you are acting on, the active network, the expected outcome, and the evidence you can independently verify. Do not rely on interface wording alone; use addresses, transaction hashes, explorers, and contract details where appropriate. For this topic, a useful sequence is: understand the concept, check before acting, submit only when the details are clear, verify on-chain status, and review any permissions that remain afterward.

A practical check

Connecting a DApp only establishes an interaction channel. It does not mean later signatures, approvals, or transactions should be trusted automatically. Review the domain, contract, permission scope, asset amount, and intended on-chain effect every time a new request appears. For malicious contract risks, separate the object you are acting on, the active network, the expected outcome, and the evidence you can independently verify. Do not rely on interface wording alone; use addresses, transaction hashes, explorers, and contract details where appropriate. For this topic, a useful sequence is: understand the concept, check before acting, submit only when the details are clear, verify on-chain status, and review any permissions that remain afterward.

Before proceeding, confirm the network, the address or contract, the amount or permission scope, and the expected result. Keep sensitive recovery information offline and never send a seed phrase, private key, or verification code to another person.
On-chain transactions generally cannot be unilaterally reversed by a wallet. Third-party DApps, smart contracts, bridges, and staking services may involve technical or operational risk. Digital-asset prices can also fluctuate. Review each action based on your own circumstances.

Keep learning with imtoken

Use the related guides to understand the network, permissions, and security checks before your next on-chain action.

Download imtoken