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added MultiversX chain #1
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raduchis
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,112 @@ | ||
package chains | ||
|
||
import ( | ||
"encoding/json" | ||
"fmt" | ||
"io" | ||
"log" | ||
"net/http" | ||
"sort" | ||
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||
"github.com/xenowits/nakamoto-coefficient-calculator/core/utils" | ||
) | ||
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const totalValidatorsUrl = "https://api.multiversx.com/stake" | ||
const identitiesUrl = "https://api.multiversx.com/identities" | ||
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type MultiversXTotalValidatorsResponse struct { | ||
TotalValidators int64 `json:"totalValidators"` | ||
} | ||
|
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type MultiversXIdentitiesResponse []struct { | ||
Locked string `json:"locked"` | ||
NumValidators int64 `json:"validators"` | ||
} | ||
|
||
func MultiversX() (int, error) { | ||
numValidatorsPerIdentity := make([]int64, 0) | ||
|
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totalNumberOfValidators, err := getTotalValidatorsNumber() | ||
if err != nil { | ||
return 0, err | ||
} | ||
|
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identities, err := getIdentities() | ||
if err != nil { | ||
return 0, err | ||
} | ||
|
||
for _, identity := range identities { | ||
if identity.Locked == "0" { | ||
continue | ||
} | ||
numValidatorsPerIdentity = append(numValidatorsPerIdentity, identity.NumValidators) | ||
} | ||
|
||
sort.Slice(numValidatorsPerIdentity, func(i, j int) bool { | ||
return numValidatorsPerIdentity[i] > numValidatorsPerIdentity[j] | ||
}) | ||
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fmt.Println("Total voting power:", totalNumberOfValidators) | ||
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// there is a fixed number of validator seats in MultiversX - currently 3200 | ||
// the Nakamoto coefficient can be computed by counting the identities (node operators) | ||
// that control more than 33% of the total number of validators | ||
nakamotoCoefficient := utils.CalcNakamotoCoefficient(totalNumberOfValidators, numValidatorsPerIdentity) | ||
fmt.Println("The Nakamoto coefficient for MultiversX is", nakamotoCoefficient) | ||
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return nakamotoCoefficient, nil | ||
} | ||
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func getTotalValidatorsNumber() (int64, error) { | ||
resp, err := http.Get(totalValidatorsUrl) | ||
if err != nil { | ||
return 0, err | ||
} | ||
|
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defer closeBody(resp) | ||
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body, err := io.ReadAll(resp.Body) | ||
if err != nil { | ||
return 0, err | ||
} | ||
|
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var response MultiversXTotalValidatorsResponse | ||
err = json.Unmarshal(body, &response) | ||
if err != nil { | ||
return 0, err | ||
} | ||
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return response.TotalValidators, nil | ||
} | ||
|
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func getIdentities() (MultiversXIdentitiesResponse, error) { | ||
resp, err := http.Get(identitiesUrl) | ||
if err != nil { | ||
return nil, err | ||
} | ||
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defer closeBody(resp) | ||
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body, err := io.ReadAll(resp.Body) | ||
if err != nil { | ||
return nil, err | ||
} | ||
|
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var response MultiversXIdentitiesResponse | ||
err = json.Unmarshal(body, &response) | ||
if err != nil { | ||
return nil, err | ||
} | ||
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return response, nil | ||
} | ||
|
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func closeBody(resp *http.Response) { | ||
if resp == nil || resp.Body == nil { | ||
return | ||
} | ||
if closeErr := resp.Body.Close(); closeErr != nil { | ||
log.Printf("failed to close response body: %s", closeErr) | ||
} | ||
} |
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the original code could have been improved to work with interfaces & containers instead of this switch. Nothing to do