47 lines
1.6 KiB
Markdown
47 lines
1.6 KiB
Markdown
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order: 3
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# Messages
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In this section we describe the processing of messages for the authz module.
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## MsgGrant
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An authorization grant is created using the `MsgGrant` message.
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If there is already a grant for the `(granter, grantee, Authorization)` triple, then the new grant overwrites the previous one. To update or extend an existing grant, a new grant with the same `(granter, grantee, Authorization)` triple should be created.
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+++ https://github.com/cosmos/cosmos-sdk/blob/v0.43.0-beta1/proto/cosmos/authz/v1beta1/tx.proto#L32-L37
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The message handling should fail if:
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* both granter and grantee have the same address.
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* provided `Expiration` time is less than current unix timestamp.
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* provided `Grant.Authorization` is not implemented.
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* `Authorization.MsgTypeURL()` is not defined in the router (there is no defined handler in the app router to handle that Msg types).
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## MsgRevoke
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A grant can be removed with the `MsgRevoke` message.
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+++ https://github.com/cosmos/cosmos-sdk/blob/v0.43.0-beta1/proto/cosmos/authz/v1beta1/tx.proto#L60-L64
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The message handling should fail if:
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* both granter and grantee have the same address.
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* provided `MsgTypeUrl` is empty.
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NOTE: The `MsgExec` message removes a grant if the grant has expired.
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## MsgExec
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When a grantee wants to execute a transaction on behalf of a granter, they must send `MsgExec`.
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+++ https://github.com/cosmos/cosmos-sdk/blob/v0.43.0-beta1/proto/cosmos/authz/v1beta1/tx.proto#L47-L53
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The message handling should fail if:
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* provided `Authorization` is not implemented.
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* grantee doesn't have permission to run the transaction.
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* if granted authorization is expired.
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