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rpc: refactor findstates client wrapper

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1. Use empty `prefix` instead of nil `preifx` in order to avoid RPC server
exceptions.
2. Allow to omit `start` parameter` if `maxCount` is not specified.
3. Use empty `start` instead of nil `start` to avoid RPC server
exceptions.
This commit is contained in:
Anna Shaleva 2022-01-18 14:56:17 +03:00
parent e3c0a1635f
commit b98fab6b38
1 changed files with 10 additions and 1 deletions
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11
pkg/rpc/client/rpc.go
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@ -458,10 +458,19 @@ func (c *Client) GetState(stateroot util.Uint256, historicalContractHash util.Ui
// If `maxCount` specified, then maximum number of items to be returned equals to `maxCount`. // If `maxCount` specified, then maximum number of items to be returned equals to `maxCount`.
func (c *Client) FindStates(stateroot util.Uint256, historicalContractHash util.Uint160, historicalPrefix []byte, func (c *Client) FindStates(stateroot util.Uint256, historicalContractHash util.Uint160, historicalPrefix []byte,
start []byte, maxCount *int) (result.FindStates, error) { start []byte, maxCount *int) (result.FindStates, error) {
if historicalPrefix == nil {
historicalPrefix = []byte{}
}
var ( var (
params = request.NewRawParams(stateroot.StringLE(), historicalContractHash.StringLE(), historicalPrefix, start) params = request.NewRawParams(stateroot.StringLE(), historicalContractHash.StringLE(), historicalPrefix)
resp result.FindStates resp result.FindStates
) )
if start == nil && maxCount != nil {
start = []byte{}
}
if start != nil {
params.Values = append(params.Values, start)
}
if maxCount != nil { if maxCount != nil {
params.Values = append(params.Values, *maxCount) params.Values = append(params.Values, *maxCount)
} }