WHO Digital Documentation of COVID-19 Certificates (DDCC)
1.0.0 - CI Build International flag

This page is part of the WHO Digital Documentation of COVID-19 Certificates (DDCC) (v1.0.0: releases Draft) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version. For a full list of available versions, see the Directory of published versions

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Draft as of 2024-10-15

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{
  "resourceType" : "StructureMap",
  "id" : "CertSHCtoCoreDataSet",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: StructureMap CertSHCtoCoreDataSet</b></p><a name=\"CertSHCtoCoreDataSet\"> </a><a name=\"hcCertSHCtoCoreDataSet\"> </a><a name=\"CertSHCtoCoreDataSet-en-US\"> </a><pre class=\"fml\">\r\n<b>map</b><span style=\"color: navy\"> &quot;</span>http://smart.who.int/ddcc/StructureMap/CertSHCtoCoreDataSet<span style=\"color: navy\">&quot; = &quot;</span>CertSHCtoCoreDataSet<span style=\"color: navy\">&quot;\r\n\r\n</span><span style=\"color: navy\">// </span><span style=\"color: green\">Structure map transforming CertSHC logical model to bundle of Core Data Set logical model</span>\r\n\r\n<b>uses</b><span style=\"color: navy\"> &quot;</span><a href=\"StructureDefinition-CertSHC.html\" title=\"Certificate - Smart Health Card's JSon Web Token Logical Model\">http://smart.who.int/ddcc/StructureDefinition/CertSHC</a><span style=\"color: navy\">&quot; </span><b>alias </b>JWTPayload <b>as </b><b>source</b>\r\n<b>uses</b><span style=\"color: navy\"> &quot;</span><a href=\"http://hl7.org/fhir/R4/bundle.html\" title=\"Bundle\">http://hl7.org/fhir/StructureDefinition/Bundle</a><span style=\"color: navy\">&quot; </span><b>alias </b>DDCCBundle <b>as </b><b>target</b>\r\n<b>uses</b><span style=\"color: navy\"> &quot;</span><a href=\"StructureDefinition-DDCCCoreDataSet.html\" title=\"DDCC Core Data Set Logical Model\">http://smart.who.int/ddcc/StructureDefinition/DDCCCoreDataSet</a><span style=\"color: navy\">&quot; </span><b>alias </b>DDCC <b>as </b><b>target</b>\r\n<b>uses</b><span style=\"color: navy\"> &quot;</span><a href=\"StructureDefinition-DDCCCoreDataSetVS.html\" title=\"DDCC Core Data Set Logical Model for Vaccination Status\">http://smart.who.int/ddcc/StructureDefinition/DDCCCoreDataSetVS</a><span style=\"color: navy\">&quot; </span><b>alias </b>DDCCVS <b>as </b><b>target</b>\r\n\r\n<b>imports</b><span style=\"color: navy\"> &quot;</span><a href=\"StructureMap-SHCToCoreDataSetVS.html\" title=\"SHCToCoreDataSetVS\">http://smart.who.int/ddcc/StructureMap/SHCToCoreDataSetVS</a><span style=\"color: navy\">&quot;\r\n</span><b>imports</b><span style=\"color: navy\"> &quot;</span><a href=\"StructureMap-SHCToCoreDataSetTR.html\" title=\"SHCToCoreDataSetTR\">http://smart.who.int/ddcc/StructureMap/SHCToCoreDataSetTR</a><span style=\"color: navy\">&quot;\r\n</span>\r\n<b>group </b>CertSHCtoCoreDataSetBundle<span style=\"color: navy\">(</span><b>source</b> <span style=\"color: maroon\">src</span><span style=\"color: navy\"> : </span>JWTPayload, <b>target</b> <span style=\"color: maroon\">ddccBundle</span><span style=\"color: navy\"> : </span>Bundle<span style=\"color: navy\">)</span><span style=\"color: navy\"> {\r\n</span>  src.vc<b> as </b><span style=\"color: maroon\">vc</span><b> then</b><span style=\"color: navy\"> {\r\n</span>    vc.credentialSubject<b> as </b><span style=\"color: maroon\">credentialSubject</span><b> then</b><span style=\"color: navy\"> {\r\n</span>      credentialSubject.fhirBundle<b> as </b><span style=\"color: maroon\">fhirBundle</span><b> then</b><span style=\"color: navy\"> {\r\n</span>        fhirBundle.entry<b> as </b><span style=\"color: maroon\">patientEntrySHC</span><b> then</b><span style=\"color: navy\"> {\r\n</span>          patientEntrySHC.resource<span style=\"color: navy\"> : </span>Patient first<b> as </b><span style=\"color: maroon\">patient</span><b> then</b><span style=\"color: navy\"> {\r\n</span>            fhirBundle.entry<b> as </b><span style=\"color: maroon\">entry</span><b> then</b><span style=\"color: navy\"> {\r\n</span>              entry.resource<span style=\"color: navy\"> : </span>Immunization<b> as </b><span style=\"color: maroon\">immunization</span><span style=\"color: navy\"><b> -&gt; </b></span> ddccBundle.entry<b> as </b><span style=\"color: maroon\">outentry</span><span style=\"color: navy\">, </span> <b>create</b><span style=\"color: navy\">(</span><span style=\"color: blue\">'http://smart.who.int/ddcc/StructureDefinition/DDCCCoreDataSetVS'</span><span style=\"color: navy\">)</span><b> as </b><span style=\"color: maroon\">ddcc</span><b> then</b><span style=\"color: navy\"> {\r\n</span>                immunization<b> then </b>PatientToDDCCVS<span style=\"color: navy\">(</span><span style=\"color: maroon\">patient</span><span style=\"color: navy\">, </span><span style=\"color: maroon\">ddcc</span><span style=\"color: navy\">)</span> <i>&quot;set patient&quot;</i><span style=\"color: navy\">;</span>\r\n                immunization<span style=\"color: navy\"><b> -&gt; </b></span>ddcc.vaccination<b> as </b><span style=\"color: maroon\">vaccination</span><b> then </b>ImmunizationToDDCC<span style=\"color: navy\">(</span><span style=\"color: maroon\">immunization</span><span style=\"color: navy\">, </span><span style=\"color: maroon\">vaccination</span><span style=\"color: navy\">)</span> <i>&quot;set vaccination&quot;</i><span style=\"color: navy\">;</span>\r\n                immunization<b> then </b>CertSHCtoCoreDataSet<span style=\"color: navy\">(</span><span style=\"color: maroon\">src</span><span style=\"color: navy\">, </span><span style=\"color: maroon\">ddcc</span><span style=\"color: navy\">)</span> <i>&quot;set ddcc&quot;</i><span style=\"color: navy\">;</span>\r\n                immunization<span style=\"color: navy\"><b> -&gt; </b></span>outentry.resource = <span style=\"color: maroon\">ddcc</span> <i>&quot;set outentry&quot;</i><span style=\"color: navy\">;</span>\r\n              <span style=\"color: navy\">}</span> <i>&quot;immunizations&quot;</i><span style=\"color: navy\">;</span>\r\n              entry.resource<span style=\"color: navy\"> : </span>Observation<b> as </b><span style=\"color: maroon\">lab</span><span style=\"color: navy\"><b> -&gt; </b></span> ddccBundle.entry<b> as </b><span style=\"color: maroon\">outentry</span><span style=\"color: navy\">, </span> <b>create</b><span style=\"color: navy\">(</span><span style=\"color: blue\">'http://smart.who.int/ddcc/StructureDefinition/DDCCCoreDataSetTR'</span><span style=\"color: navy\">)</span><b> as </b><span style=\"color: maroon\">ddcc</span><b> then</b><span style=\"color: navy\"> {\r\n</span>                lab<b> then </b>PatientToDDCCTR<span style=\"color: navy\">(</span><span style=\"color: maroon\">patient</span><span style=\"color: navy\">, </span><span style=\"color: maroon\">ddcc</span><span style=\"color: navy\">)</span> <i>&quot;set patient&quot;</i><span style=\"color: navy\">;</span>\r\n                lab<span style=\"color: navy\"><b> -&gt; </b></span>ddcc.test<b> as </b><span style=\"color: maroon\">test</span><b> then </b>LabToDDCC<span style=\"color: navy\">(</span><span style=\"color: maroon\">lab</span><span style=\"color: navy\">, </span><span style=\"color: maroon\">test</span><span style=\"color: navy\">)</span> <i>&quot;set test&quot;</i><span style=\"color: navy\">;</span>\r\n                lab<b> then </b>CertSHCtoCoreDataSet<span style=\"color: navy\">(</span><span style=\"color: maroon\">src</span><span style=\"color: navy\">, </span><span style=\"color: maroon\">ddcc</span><span style=\"color: navy\">)</span> <i>&quot;set ddcc&quot;</i><span style=\"color: navy\">;</span>\r\n                lab<span style=\"color: navy\"><b> -&gt; </b></span>outentry.resource = <span style=\"color: maroon\">ddcc</span> <i>&quot;set outentry&quot;</i><span style=\"color: navy\">;</span>\r\n              <span style=\"color: navy\">}</span> <i>&quot;labs&quot;</i><span style=\"color: navy\">;</span>\r\n            <span style=\"color: navy\">}</span> <i>&quot;entries&quot;</i><span style=\"color: navy\">;</span>\r\n          <span style=\"color: navy\">}</span> <i>&quot;get patient&quot;</i><span style=\"color: navy\">;</span>\r\n        <span style=\"color: navy\">}</span> <i>&quot;find patient&quot;</i><span style=\"color: navy\">;</span>\r\n      <span style=\"color: navy\">}</span><span style=\"color: navy\">;</span>\r\n    <span style=\"color: navy\">}</span><span style=\"color: navy\">;</span>\r\n  <span style=\"color: navy\">}</span><span style=\"color: navy\">;</span>\r\n<span style=\"color: navy\">}\r\n\r\n</span><b>group </b>CertSHCtoCoreDataSet<span style=\"color: navy\">(</span><b>source</b> <span style=\"color: maroon\">src</span><span style=\"color: navy\"> : </span>JWTPayload, <b>target</b> <span style=\"color: maroon\">ddcc</span><span style=\"color: navy\"> : </span>DDCC<span style=\"color: navy\">)</span><span style=\"color: navy\"> {\r\n</span>  src<span style=\"color: navy\"><b> -&gt; </b></span>ddcc.certificate<b> as </b><span style=\"color: maroon\">cert</span><b> then</b><span style=\"color: navy\"> {\r\n</span>    src.iss<span style=\"color: navy\"><b> -&gt; </b></span>cert.issuer = <b>create</b><span style=\"color: navy\">(</span><span style=\"color: blue\">'Reference'</span><span style=\"color: navy\">)</span><b> as </b><span style=\"color: maroon\">issuer</span><b> then</b><span style=\"color: navy\"> {\r\n</span>      src.iss<b> as </b><span style=\"color: maroon\">iss</span><span style=\"color: navy\"><b> -&gt; </b></span>issuer.reference = <span style=\"color: maroon\">iss</span> <i>&quot;set issuer&quot;</i><span style=\"color: navy\">;</span>\r\n    <span style=\"color: navy\">}</span> <i>&quot;issuer&quot;</i><span style=\"color: navy\">;</span>\r\n    src<span style=\"color: navy\"><b> -&gt; </b></span>cert.period = <b>create</b><span style=\"color: navy\">(</span><span style=\"color: blue\">'Period'</span><span style=\"color: navy\">)</span><b> as </b><span style=\"color: maroon\">period</span><b> then</b><span style=\"color: navy\"> {\r\n</span>      src<b> then </b>JwtToPeriod<span style=\"color: navy\">(</span><span style=\"color: maroon\">src</span><span style=\"color: navy\">, </span><span style=\"color: maroon\">period</span><span style=\"color: navy\">)</span> <i>&quot;set period&quot;</i><span style=\"color: navy\">;</span>\r\n    <span style=\"color: navy\">}</span> <i>&quot;period&quot;</i><span style=\"color: navy\">;</span>\r\n  <span style=\"color: navy\">}</span> <i>&quot;certificate&quot;</i><span style=\"color: navy\">;</span>\r\n<span style=\"color: navy\">}\r\n\r\n</span><b>group </b>JwtToPeriod<span style=\"color: navy\">(</span><b>source</b> <span style=\"color: maroon\">src</span><span style=\"color: navy\"> : </span>JWTPayload, <b>target</b> <span style=\"color: maroon\">tgt</span><span style=\"color: navy\"> : </span>Period<span style=\"color: navy\">)</span><span style=\"color: navy\"> {\r\n</span>  src.nbf<b> as </b><span style=\"color: maroon\">nbf</span><span style=\"color: navy\"><b> -&gt; </b></span> <b>append</b><span style=\"color: navy\">(</span><span style=\"color: maroon\">nbf</span><span style=\"color: navy\">, </span><span style=\"color: blue\">' seconds'</span><span style=\"color: navy\">)</span><b> as </b><span style=\"color: maroon\">epoch</span><span style=\"color: navy\">, </span> tgt.start = <span style=\"color: navy\">(</span>@1970-01-01T00:00:00.000+00:00 + epoch.toQuantity()<span style=\"color: navy\">)</span> <i>&quot;set period start to notBefore&quot;</i><span style=\"color: navy\">;</span>\r\n  src.iat<b> as </b><span style=\"color: maroon\">iat</span><span style=\"color: navy\"><b> -&gt; </b></span> <b>append</b><span style=\"color: navy\">(</span><span style=\"color: maroon\">iat</span><span style=\"color: navy\">, </span><span style=\"color: blue\">' seconds'</span><span style=\"color: navy\">)</span><b> as </b><span style=\"color: maroon\">epoch</span><span style=\"color: navy\">, </span> tgt.start = <span style=\"color: navy\">(</span>@1970-01-01T00:00:00.000+00:00 + epoch.toQuantity()<span style=\"color: navy\">)</span> <i>&quot;set period start to  issuedAt&quot;</i><span style=\"color: navy\">;</span>\r\n  src.exp<b> as </b><span style=\"color: maroon\">exp</span><span style=\"color: navy\"><b> -&gt; </b></span> <b>append</b><span style=\"color: navy\">(</span><span style=\"color: maroon\">exp</span><span style=\"color: navy\">, </span><span style=\"color: blue\">' seconds'</span><span style=\"color: navy\">)</span><b> as </b><span style=\"color: maroon\">epoch</span><span style=\"color: navy\">, </span> tgt.end = <span style=\"color: navy\">(</span>@1970-01-01T00:00:00.000+00:00 + epoch.toQuantity()<span style=\"color: navy\">)</span> <i>&quot;set period end&quot;</i><span style=\"color: navy\">;</span>\r\n<span style=\"color: navy\">}\r\n\r\n</span></pre></div>"
  },
  "url" : "http://smart.who.int/ddcc/StructureMap/CertSHCtoCoreDataSet",
  "version" : "1.0.0",
  "name" : "CertSHCtoCoreDataSet",
  "status" : "draft",
  "date" : "2024-10-15T11:00:36+02:00",
  "publisher" : "WHO",
  "contact" : [
    {
      "name" : "WHO",
      "telecom" : [
        {
          "system" : "url",
          "value" : "http://who.int"
        }
      ]
    }
  ],
  "description" : "Structure map transforming CertSHC logical model to bundle of Core Data Set logical model",
  "jurisdiction" : [
    {
      "coding" : [
        {
          "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code" : "001"
        }
      ]
    }
  ],
  "structure" : [
    {
      "url" : "http://smart.who.int/ddcc/StructureDefinition/CertSHC",
      "mode" : "source",
      "alias" : "JWTPayload"
    },
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/Bundle",
      "mode" : "target",
      "alias" : "DDCCBundle"
    },
    {
      "url" : "http://smart.who.int/ddcc/StructureDefinition/DDCCCoreDataSet",
      "mode" : "target",
      "alias" : "DDCC"
    },
    {
      "url" : "http://smart.who.int/ddcc/StructureDefinition/DDCCCoreDataSetVS",
      "mode" : "target",
      "alias" : "DDCCVS"
    }
  ],
  "import" : [
    🔗 "http://smart.who.int/ddcc/StructureMap/SHCToCoreDataSetVS"🔗 ,
    "http://smart.who.int/ddcc/StructureMap/SHCToCoreDataSetTR"
  ],
  "group" : [
    {
      "name" : "CertSHCtoCoreDataSetBundle",
      "typeMode" : "none",
      "input" : [
        {
          "name" : "src",
          "type" : "JWTPayload",
          "mode" : "source"
        },
        {
          "name" : "ddccBundle",
          "type" : "Bundle",
          "mode" : "target"
        }
      ],
      "rule" : [
        {
          "name" : "vc",
          "source" : [
            {
              "context" : "src",
              "element" : "vc",
              "variable" : "vc"
            }
          ],
          "rule" : [
            {
              "name" : "credentialSubject",
              "source" : [
                {
                  "context" : "vc",
                  "element" : "credentialSubject",
                  "variable" : "credentialSubject"
                }
              ],
              "rule" : [
                {
                  "name" : "fhirBundle",
                  "source" : [
                    {
                      "context" : "credentialSubject",
                      "element" : "fhirBundle",
                      "variable" : "fhirBundle"
                    }
                  ],
                  "rule" : [
                    {
                      "name" : "find patient",
                      "source" : [
                        {
                          "context" : "fhirBundle",
                          "element" : "entry",
                          "variable" : "patientEntrySHC"
                        }
                      ],
                      "rule" : [
                        {
                          "name" : "get patient",
                          "source" : [
                            {
                              "context" : "patientEntrySHC",
                              "type" : "Patient",
                              "element" : "resource",
                              "listMode" : "first",
                              "variable" : "patient"
                            }
                          ],
                          "rule" : [
                            {
                              "name" : "entries",
                              "source" : [
                                {
                                  "context" : "fhirBundle",
                                  "element" : "entry",
                                  "variable" : "entry"
                                }
                              ],
                              "rule" : [
                                {
                                  "name" : "immunizations",
                                  "source" : [
                                    {
                                      "context" : "entry",
                                      "type" : "Immunization",
                                      "element" : "resource",
                                      "variable" : "immunization"
                                    }
                                  ],
                                  "target" : [
                                    {
                                      "context" : "ddccBundle",
                                      "contextType" : "variable",
                                      "element" : "entry",
                                      "variable" : "outentry"
                                    },
                                    {
                                      "contextType" : "variable",
                                      "variable" : "ddcc",
                                      "transform" : "create",
                                      "parameter" : [
                                        {
                                          "valueString" : "http://smart.who.int/ddcc/StructureDefinition/DDCCCoreDataSetVS"
                                        }
                                      ]
                                    }
                                  ],
                                  "rule" : [
                                    {
                                      "name" : "set patient",
                                      "source" : [
                                        {
                                          "context" : "immunization"
                                        }
                                      ],
                                      "dependent" : [
                                        {
                                          "name" : "PatientToDDCCVS",
                                          "variable" : [
                                            "patient",
                                            "ddcc"
                                          ]
                                        }
                                      ]
                                    },
                                    {
                                      "name" : "set vaccination",
                                      "source" : [
                                        {
                                          "context" : "immunization"
                                        }
                                      ],
                                      "target" : [
                                        {
                                          "context" : "ddcc",
                                          "contextType" : "variable",
                                          "element" : "vaccination",
                                          "variable" : "vaccination"
                                        }
                                      ],
                                      "dependent" : [
                                        {
                                          "name" : "ImmunizationToDDCC",
                                          "variable" : [
                                            "immunization",
                                            "vaccination"
                                          ]
                                        }
                                      ]
                                    },
                                    {
                                      "name" : "set ddcc",
                                      "source" : [
                                        {
                                          "context" : "immunization"
                                        }
                                      ],
                                      "dependent" : [
                                        {
                                          "name" : "CertSHCtoCoreDataSet",
                                          "variable" : [
                                            "src",
                                            "ddcc"
                                          ]
                                        }
                                      ]
                                    },
                                    {
                                      "name" : "set outentry",
                                      "source" : [
                                        {
                                          "context" : "immunization"
                                        }
                                      ],
                                      "target" : [
                                        {
                                          "context" : "outentry",
                                          "contextType" : "variable",
                                          "element" : "resource",
                                          "transform" : "copy",
                                          "parameter" : [
                                            {
                                              "valueId" : "ddcc"
                                            }
                                          ]
                                        }
                                      ]
                                    }
                                  ]
                                },
                                {
                                  "name" : "labs",
                                  "source" : [
                                    {
                                      "context" : "entry",
                                      "type" : "Observation",
                                      "element" : "resource",
                                      "variable" : "lab"
                                    }
                                  ],
                                  "target" : [
                                    {
                                      "context" : "ddccBundle",
                                      "contextType" : "variable",
                                      "element" : "entry",
                                      "variable" : "outentry"
                                    },
                                    {
                                      "contextType" : "variable",
                                      "variable" : "ddcc",
                                      "transform" : "create",
                                      "parameter" : [
                                        {
                                          "valueString" : "http://smart.who.int/ddcc/StructureDefinition/DDCCCoreDataSetTR"
                                        }
                                      ]
                                    }
                                  ],
                                  "rule" : [
                                    {
                                      "name" : "set patient",
                                      "source" : [
                                        {
                                          "context" : "lab"
                                        }
                                      ],
                                      "dependent" : [
                                        {
                                          "name" : "PatientToDDCCTR",
                                          "variable" : [
                                            "patient",
                                            "ddcc"
                                          ]
                                        }
                                      ]
                                    },
                                    {
                                      "name" : "set test",
                                      "source" : [
                                        {
                                          "context" : "lab"
                                        }
                                      ],
                                      "target" : [
                                        {
                                          "context" : "ddcc",
                                          "contextType" : "variable",
                                          "element" : "test",
                                          "variable" : "test"
                                        }
                                      ],
                                      "dependent" : [
                                        {
                                          "name" : "LabToDDCC",
                                          "variable" : [
                                            "lab",
                                            "test"
                                          ]
                                        }
                                      ]
                                    },
                                    {
                                      "name" : "set ddcc",
                                      "source" : [
                                        {
                                          "context" : "lab"
                                        }
                                      ],
                                      "dependent" : [
                                        {
                                          "name" : "CertSHCtoCoreDataSet",
                                          "variable" : [
                                            "src",
                                            "ddcc"
                                          ]
                                        }
                                      ]
                                    },
                                    {
                                      "name" : "set outentry",
                                      "source" : [
                                        {
                                          "context" : "lab"
                                        }
                                      ],
                                      "target" : [
                                        {
                                          "context" : "outentry",
                                          "contextType" : "variable",
                                          "element" : "resource",
                                          "transform" : "copy",
                                          "parameter" : [
                                            {
                                              "valueId" : "ddcc"
                                            }
                                          ]
                                        }
                                      ]
                                    }
                                  ]
                                }
                              ]
                            }
                          ]
                        }
                      ]
                    }
                  ]
                }
              ]
            }
          ]
        }
      ]
    },
    {
      "name" : "CertSHCtoCoreDataSet",
      "typeMode" : "none",
      "input" : [
        {
          "name" : "src",
          "type" : "JWTPayload",
          "mode" : "source"
        },
        {
          "name" : "ddcc",
          "type" : "DDCC",
          "mode" : "target"
        }
      ],
      "rule" : [
        {
          "name" : "certificate",
          "source" : [
            {
              "context" : "src"
            }
          ],
          "target" : [
            {
              "context" : "ddcc",
              "contextType" : "variable",
              "element" : "certificate",
              "variable" : "cert"
            }
          ],
          "rule" : [
            {
              "name" : "issuer",
              "source" : [
                {
                  "context" : "src",
                  "element" : "iss"
                }
              ],
              "target" : [
                {
                  "context" : "cert",
                  "contextType" : "variable",
                  "element" : "issuer",
                  "variable" : "issuer",
                  "transform" : "create",
                  "parameter" : [
                    {
                      "valueString" : "Reference"
                    }
                  ]
                }
              ],
              "rule" : [
                {
                  "name" : "set issuer",
                  "source" : [
                    {
                      "context" : "src",
                      "element" : "iss",
                      "variable" : "iss"
                    }
                  ],
                  "target" : [
                    {
                      "context" : "issuer",
                      "contextType" : "variable",
                      "element" : "reference",
                      "transform" : "copy",
                      "parameter" : [
                        {
                          "valueId" : "iss"
                        }
                      ]
                    }
                  ]
                }
              ]
            },
            {
              "name" : "period",
              "source" : [
                {
                  "context" : "src"
                }
              ],
              "target" : [
                {
                  "context" : "cert",
                  "contextType" : "variable",
                  "element" : "period",
                  "variable" : "period",
                  "transform" : "create",
                  "parameter" : [
                    {
                      "valueString" : "Period"
                    }
                  ]
                }
              ],
              "rule" : [
                {
                  "name" : "set period",
                  "source" : [
                    {
                      "context" : "src"
                    }
                  ],
                  "dependent" : [
                    {
                      "name" : "JwtToPeriod",
                      "variable" : [
                        "src",
                        "period"
                      ]
                    }
                  ]
                }
              ]
            }
          ]
        }
      ]
    },
    {
      "name" : "JwtToPeriod",
      "typeMode" : "none",
      "input" : [
        {
          "name" : "src",
          "type" : "JWTPayload",
          "mode" : "source"
        },
        {
          "name" : "tgt",
          "type" : "Period",
          "mode" : "target"
        }
      ],
      "rule" : [
        {
          "name" : "set period start to notBefore",
          "source" : [
            {
              "context" : "src",
              "element" : "nbf",
              "variable" : "nbf"
            }
          ],
          "target" : [
            {
              "contextType" : "variable",
              "variable" : "epoch",
              "transform" : "append",
              "parameter" : [
                {
                  "valueId" : "nbf"
                },
                {
                  "valueString" : " seconds"
                }
              ]
            },
            {
              "context" : "tgt",
              "contextType" : "variable",
              "element" : "start",
              "transform" : "evaluate",
              "parameter" : [
                {
                  "valueString" : "@1970-01-01T00:00:00.000+00:00 + epoch.toQuantity()"
                }
              ]
            }
          ]
        },
        {
          "name" : "set period start to  issuedAt",
          "source" : [
            {
              "context" : "src",
              "element" : "iat",
              "variable" : "iat"
            }
          ],
          "target" : [
            {
              "contextType" : "variable",
              "variable" : "epoch",
              "transform" : "append",
              "parameter" : [
                {
                  "valueId" : "iat"
                },
                {
                  "valueString" : " seconds"
                }
              ]
            },
            {
              "context" : "tgt",
              "contextType" : "variable",
              "element" : "start",
              "transform" : "evaluate",
              "parameter" : [
                {
                  "valueString" : "@1970-01-01T00:00:00.000+00:00 + epoch.toQuantity()"
                }
              ]
            }
          ]
        },
        {
          "name" : "set period end",
          "source" : [
            {
              "context" : "src",
              "element" : "exp",
              "variable" : "exp"
            }
          ],
          "target" : [
            {
              "contextType" : "variable",
              "variable" : "epoch",
              "transform" : "append",
              "parameter" : [
                {
                  "valueId" : "exp"
                },
                {
                  "valueString" : " seconds"
                }
              ]
            },
            {
              "context" : "tgt",
              "contextType" : "variable",
              "element" : "end",
              "transform" : "evaluate",
              "parameter" : [
                {
                  "valueString" : "@1970-01-01T00:00:00.000+00:00 + epoch.toQuantity()"
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}