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support go-onchain-credential-adapter (#57)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| package c_polygonid | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
|
|
||
| "github.com/ethereum/go-ethereum/ethclient" | ||
| core "github.com/iden3/go-iden3-core/v2" | ||
| "github.com/iden3/go-iden3-core/v2/w3c" | ||
| convertor "github.com/iden3/go-onchain-credential-adapter" | ||
| "github.com/iden3/go-schema-processor/v2/merklize" | ||
| "github.com/iden3/go-schema-processor/v2/verifiable" | ||
| ) | ||
|
|
||
| type w3CCredentialFromOnchainHexRequest struct { | ||
| IssuerDID coreDID `json:"issuerDID"` | ||
| Hexdata string `json:"hexdata"` | ||
| Version string `json:"version"` | ||
| } | ||
|
|
||
| func W3CCredentialFromOnchainHex( | ||
| ctx context.Context, | ||
| envCfg EnvConfig, | ||
| in []byte, | ||
| ) (*verifiable.W3CCredential, error) { | ||
| var inParams w3CCredentialFromOnchainHexRequest | ||
| if err := json.Unmarshal(in, &inParams); err != nil { | ||
| return nil, fmt.Errorf("failed to unmarshal input params: %w", err) | ||
| } | ||
|
|
||
| issuerDID := w3c.DID(inParams.IssuerDID) | ||
|
|
||
| chainID, err := core.ChainIDfromDID(issuerDID) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to get chain id from issuer: %w", err) | ||
| } | ||
| chainConfig, ok := envCfg.ChainConfigs[chainID] | ||
| if !ok { | ||
| return nil, fmt.Errorf("chain id '%d' not found in config", chainID) | ||
| } | ||
|
|
||
| ethcli, err := ethclient.DialContext(ctx, chainConfig.RPCUrl) | ||
| if err != nil { | ||
| return nil, | ||
| fmt.Errorf("failed to connect to ethereum: %w", err) | ||
| } | ||
| defer ethcli.Close() | ||
|
|
||
| credential, err := convertor.W3CCredentialFromOnchainHex( | ||
| ctx, | ||
| ethcli, | ||
| &issuerDID, | ||
| inParams.Hexdata, | ||
| inParams.Version, | ||
| convertor.WithMerklizeOptions( | ||
| merklize.Options{ | ||
| DocumentLoader: envCfg.documentLoader(), | ||
| }, | ||
| ), | ||
| ) | ||
| if err != nil { | ||
| return nil, | ||
| fmt.Errorf("failed to convert onchain hex to W3C credential: %w", err) | ||
| } | ||
| return credential, nil | ||
| } |
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