added new example of how to build a multivalued credential

exampleCredentials/6.addEntityMultivaluedCredential.js

@@ -0,0 +1,177 @@
+const {
+    transactionFactory,
+    UserIdentity,
+    tokensFactory
+  } = require('alastria-identity-lib')
+  const Web3 = require('web3')
+  const fs = require('fs')
+  const keythereum = require('keythereum')
+
+  const rawdata = fs.readFileSync('../configuration.json')
+  const configData = JSON.parse(rawdata)
+
+  const keyDataEntity1 = fs.readFileSync(
+    //'../keystores/entity1-a9728125c573924b2b1ad6a8a8cd9bf6858ced49.json'
+    '../keystores/eu-issuer.json'
+  )
+  const keystoreDataEntity1 = JSON.parse(keyDataEntity1)
+
+  // Init your blockchain provider
+  const myBlockchainServiceIp = configData.nodeURL
+  const web3 = new Web3(new Web3.providers.HttpProvider(myBlockchainServiceIp))
+
+  // ------------------------------------------------------------------------------
+  console.log('\n ------ Preparing Entity1 identity ------ \n')
+
+  // Some fake data to test
+
+  const entity1Keystore = keystoreDataEntity1
+
+  let entity1PrivateKey
+  try {
+    entity1PrivateKey = keythereum.recover(
+      configData.addressPassword,
+      entity1Keystore
+    )
+  } catch (error) {
+    console.error('ERROR: ', error)
+  }
+
+  const entity1Identity = new UserIdentity(
+    web3,
+    `0x${entity1Keystore.address}`,
+    entity1PrivateKey
+  )
+
+   // Creating Multivalued Credential
+  console.log('\n ------ Creating multivalued credential ------ \n')
+
+  const jti = configData.jti
+  const kidCredential = configData.kidCredential
+  //const subjectAlastriaID = configData.subjectAlastriaID
+  const subjectAlastriaID = configData.didEuSubject
+  //const didEntity1 = configData.didEntity1
+  const didEntity1 = configData.didEuIssuer
+  const context = configData.context
+  const tokenExpTime = configData.tokenExpTime
+  const tokenActivationDate = configData.tokenActivationDate
+
+  // Multivalued Credential Map (key-->value)
+  const credentialSubject = {}
+  const credentialKey = configData.credentialKeyFather
+  const credentialValue = configData.credentialValueFather
+  const credentialSubKey1 = configData.credentialSubKey1
+  const credentialSubKey2 = configData.credentialSubKey2
+  const credentialSubKey3 = configData.credentialSubKey3
+  const credentialSubKey4 = configData.credentialSubKey4
+  const credentialSubValue1 = configData.credentialSubValue1
+  const credentialSubValue2 = configData.credentialSubValue2
+  const credentialSubValue3 = configData.credentialSubValue3
+  const credentialSubValue4 = configData.credentialSubValue4
+  credentialSubject[credentialKey] = credentialValue
+  credentialSubject[credentialKey][credentialSubKey1] = credentialSubValue1
+  credentialSubject[credentialKey][credentialSubKey2] = credentialSubValue2
+  credentialSubject[credentialKey][credentialSubKey3] = credentialSubValue3
+  credentialSubject[credentialKey][credentialSubKey4] = credentialSubValue4
+  credentialSubject.levelOfAssurance = 'basic'
+  console.log("Multivalued Credential", credentialSubject)
+
+  // End multivalued credential data
+
+  // Build multivalued credential with tokensFactory library
+  const credential = tokensFactory.tokens.createCredential(
+    didEntity1,
+    context,
+    credentialSubject,
+    kidCredential,
+    subjectAlastriaID,
+    tokenExpTime,
+    tokenActivationDate,
+    jti
+  )
+  console.log('The credential1 is: ', credential)
+
+  // Sign multivalued credential with tokensFactory library
+  const signedJWTCredential = tokensFactory.tokens.signJWT(
+    credential,
+    entity1PrivateKey
+  )
+  console.log('The signed token is: ', signedJWTCredential)
+
+  // Create Issuer PSMHash of multivalued credential with tokensFactory library
+  const credentialHash = tokensFactory.tokens.PSMHash(
+    web3,
+    signedJWTCredential,
+    didEntity1
+  )
+  console.log('The Entity1 PSMHash is:', credentialHash)
+  fs.writeFileSync(
+    `./PSMHashEntity1.json`,
+    JSON.stringify({ psmhash: credentialHash, jwt: signedJWTCredential })
+  )
+
+  // Build addIssuerCredential transaction with transactionFactory library
+  function addIssuerCredential() {
+    const issuerCredential =
+      transactionFactory.credentialRegistry.addIssuerCredential(
+        web3,
+        credentialHash
+      )
+    console.log('(addIssuerCredential)The transaction is: ', issuerCredential)
+    return issuerCredential
+  }
+
+  function sendSigned(issuerCredentialSigned) {
+    return new Promise((resolve, reject) => {
+      web3.eth
+        .sendSignedTransaction(issuerCredentialSigned)
+        .on('transactionHash', function (hash) {
+          console.log('HASH: ', hash)
+        })
+        .on('receipt', (receipt) => {
+          resolve(receipt)
+        })
+        .on('error', (error) => {
+          console.error('Error------>', error)
+          reject(error)
+          process.exit(1)
+        })
+    })
+  }
+
+  async function main() {
+    const resultIssuerCredential = await addIssuerCredential()
+
+    const issuerCredentialSigned = await entity1Identity.getKnownTransaction(
+      resultIssuerCredential
+    )
+    console.log(
+      '(addIssuerCredential)The transaction bytes data is: ',
+      issuerCredentialSigned
+    )
+    sendSigned(issuerCredentialSigned).then((receipt) => {
+      console.log('RECEIPT:', receipt)
+      // Build getIssuerCredentialStatus transaction with transactionFactory library
+      const issuerCredentialTransaction =
+        transactionFactory.credentialRegistry.getIssuerCredentialStatus(
+          web3,
+          //configData.didEntity1,
+          configData.didEuIssuer,
+          credentialHash
+        )
+      web3.eth
+        .call(issuerCredentialTransaction)
+        .then((IssuerCredentialStatus) => {
+          const result = web3.eth.abi.decodeParameters(
+            ['bool', 'uint8'],
+            IssuerCredentialStatus
+          )
+          const credentialStatus = {
+            exists: result[0],
+            status: result[1]
+          }
+          console.log('(IssuerCredentialStatus) -----> ', credentialStatus)
+        })
+    })
+  }
+  main()