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cosmos-sdk
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Added some documentation

This commit is contained in:
Aditya Sripal 2018-06-27 14:50:59 -07:00 committed by Ethan Buchman
parent 98be0e7f76
commit e3f38b6f6c
3 changed files with 12 additions and 0 deletions
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4
docs/core/examples/app2.go
View File

@ -131,9 +131,11 @@ func handleMsgIssue(keyMain *sdk.KVStoreKey, keyAcc *sdk.KVStoreKey) sdk.Handler
return sdk.NewError(2, 1, "IssueMsg is malformed").Result()
}
// Retrieve stores
store := ctx.KVStore(keyMain)
accStore := ctx.KVStore(keyAcc)
// Handle updating metadata
if res := handleMetaData(store, issueMsg.Issuer, issueMsg.Coin); !res.IsOK() {
return res
}
@ -144,6 +146,7 @@ func handleMsgIssue(keyMain *sdk.KVStoreKey, keyAcc *sdk.KVStoreKey) sdk.Handler
}
return sdk.Result{
// Return result with Issue msg tags
Tags: issueMsg.Tags(),
}
}
@ -173,6 +176,7 @@ func handleMetaData(store sdk.KVStore, issuer sdk.Address, coin sdk.Coin) sdk.Re
}
}
// Msg Issuer is not authorized to issue these coins
if !reflect.DeepEqual(metadata.Issuer, issuer) {
return sdk.ErrUnauthorized(fmt.Sprintf("Msg Issuer cannot issue tokens: %s", coin.Denom)).Result()
}

3
docs/core/examples/app3.go
View File

@ -90,6 +90,7 @@ func betterHandleMsgIssue(metadataMapper MetaDataMapper, accountKeeper bank.Keep
return sdk.NewError(2, 1, "Issue Message Malformed").Result()
}
// Handle updating metadata
if res := betterHandleMetaData(ctx, metadataMapper, issueMsg.Issuer, issueMsg.Coin); !res.IsOK() {
return res
}
@ -101,6 +102,7 @@ func betterHandleMsgIssue(metadataMapper MetaDataMapper, accountKeeper bank.Keep
}
return sdk.Result{
// Return result with Issue msg tags
Tags: issueMsg.Tags(),
}
}
@ -114,6 +116,7 @@ func betterHandleMetaData(ctx sdk.Context, metadataMapper MetaDataMapper, issuer
metadata.Issuer = issuer
}
// Msg Issuer is not authorized to issue these coins
if !reflect.DeepEqual(metadata.Issuer, issuer) {
return sdk.ErrUnauthorized(fmt.Sprintf("Msg Issuer cannot issue tokens: %s", coin.Denom)).Result()
}

5
docs/core/examples/app4.go
View File

@ -138,16 +138,19 @@ func evenBetterHandleMsgIssue(metadataMapper MetaDataMapper, accountKeeper bank.
return sdk.NewError(2, 1, "Issue Message Malformed").Result()
}
// Handle updating metadata
if res := evenBetterHandleMetaData(ctx, metadataMapper, issueMsg.Issuer, issueMsg.Coin); !res.IsOK() {
return res
}
// Add newly issued coins to output address
_, _, err := accountKeeper.AddCoins(ctx, issueMsg.Receiver, []sdk.Coin{issueMsg.Coin})
if err != nil {
return err.Result()
}
return sdk.Result{
// Return result with Issue msg tags
Tags: issueMsg.Tags(),
}
}
@ -156,10 +159,12 @@ func evenBetterHandleMsgIssue(metadataMapper MetaDataMapper, accountKeeper bank.
func evenBetterHandleMetaData(ctx sdk.Context, metadataMapper MetaDataMapper, issuer sdk.Address, coin sdk.Coin) sdk.Result {
metadata := metadataMapper.GetMetaData(ctx, coin.Denom)
// Coin metadata does not exist in store
if reflect.DeepEqual(metadata, CoinMetadata{}) {
return sdk.ErrInvalidCoins(fmt.Sprintf("Cannot find metadata for coin: %s", coin.Denom)).Result()
}
// Msg Issuer not authorized to issue these coins
if !reflect.DeepEqual(metadata.Issuer, issuer) {
return sdk.ErrUnauthorized(fmt.Sprintf("Msg Issuer cannot issue tokens: %s", coin.Denom)).Result()
}