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R4R: Allow overriding of CLI transaction response handling #3276

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R4R: Allow overriding of CLI transaction response handling #3276

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64554b6
Added ResponseHandler field to CLIContext
aaronc Jan 10, 2019
465c660
Change ResponseHandler -> ResponsePrinter, set to resStr
aaronc Jan 10, 2019
707f364
Change ResponsePrinter -> ResponseHandler making the override more ge…
aaronc Jan 29, 2019
6e1f27e
Update docstring, cleanup indentation
aaronc Jan 29, 2019
b2410f6
Simplified ResponseHandler - no need for it to handle the return valu…
aaronc Jan 29, 2019
d0006b5
Renamed ResponseHandler -> TxResponseHandler. Created DefaultTxRespon…
aaronc Jan 30, 2019
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5 changes: 5 additions & 0 deletions client/context/broadcast.go
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Original file line number Diff line number Diff line change
Expand Up @@ -131,6 +131,11 @@ func (ctx CLIContext) broadcastTxCommit(txBytes []byte) (*ctypes.ResultBroadcast
return res, err
}

if ctx.ResponseHandler != nil {
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I suppose this is a flexible way of doing this. May I suggest a few things?

  • Rename ResponseHandler to TxResponseHandler to provide better context
  • Take the two if statements below this and stuff them into a DefaultTxResponseHandler. This will DRY and cleanup broadcastTxCommit.
  • Perhaps implement another TxResponseHandler that pretty prints the response (this may require merging @sunnya97's PR).

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  • Rename ResponseHandler to TxResponseHandler to provide better context
  • Take the two if statements below this and stuff them into a DefaultTxResponseHandler. This will DRY and cleanup broadcastTxCommit.

Okay, pushed these two changes. I added error as the return to TxResponseHandler because MarshalJSON could return an error in DefaultTxResponseHandler. Looks like the error is handled higher up. I agree this is nice for DRY because it would allow someone to just wrap the default functionality.

  • Perhaps implement another TxResponseHandler that pretty prints the response (this may require merging @sunnya97's PR).

Happy to help with that. Is it okay if it's in a separate PR connected with the discussion in #2953 ?

ctx.ResponseHandler(res)
return res, nil
}

if ctx.OutputFormat == "json" {
// Since JSON is intended for automated scripts, always include response in
// JSON mode.
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15 changes: 9 additions & 6 deletions client/context/context.go
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Expand Up @@ -20,6 +20,7 @@ import (
tmlite "github.com/tendermint/tendermint/lite"
tmliteProxy "github.com/tendermint/tendermint/lite/proxy"
rpcclient "github.com/tendermint/tendermint/rpc/client"
ctypes "github.com/tendermint/tendermint/rpc/core/types"

sdk "github.com/cosmos/cosmos-sdk/types"
)
Expand All @@ -42,12 +43,14 @@ type CLIContext struct {
UseLedger bool
Async bool
PrintResponse bool
Verifier tmlite.Verifier
Simulate bool
GenerateOnly bool
FromAddress sdk.AccAddress
FromName string
Indent bool
// Overrides the default CLI transaction response handling with a custom handler
ResponseHandler func(res *ctypes.ResultBroadcastTxCommit)
Verifier tmlite.Verifier
Simulate bool
GenerateOnly bool
FromAddress sdk.AccAddress
FromName string
Indent bool
}

// NewCLIContext returns a new initialized CLIContext with parameters from the
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