Parse JSON step failing with null error

[livingstonep]

we are getting an error parsing JSON from an HTTP Get request in our flow.

Here is the schema we are using in our Parse JSON step:

{
    "type": "object",
    "properties": {
        "d": {
            "type": "object",
            "properties": {
                "results": {
                    "type": "array",
                    "items": {
                        "type": "object",
                        "properties": {
                            "__metadata": {
                                "type": "object",
                                "properties": {
                                    "id": {
                                        "type": "string"
                                    },
                                    "uri": {
                                        "type": "string"
                                    },
                                    "type": {
                                        "type": "string"
                                    }
                                }
                            },
                            "Alerts": {
                                "type": "object",
                                "properties": {
                                    "__deferred": {
                                        "type": "object",
                                        "properties": {
                                            "uri": {
                                                "type": "string"
                                            }
                                        }
                                    }
                                }
                            },
                            "Groups": {
                                "type": "object",
                                "properties": {
                                    "__deferred": {
                                        "type": "object",
                                        "properties": {
                                            "uri": {
                                                "type": "string"
                                            }
                                        }
                                    }
                                }
                            },
                            "Id": {
                                "type": "integer"
                            },
                            "IsHiddenInUI": {
                                "type": "boolean"
                            },
                            "LoginName": {
                                "type": "string"
                            },
                            "Title": {
                                "type": "string"
                            },
                            "PrincipalType": {
                                "type": "integer"
                            },
                            "Email": {
                                "type": "string"
                            },
                            "IsEmailAuthenticationGuestUser": {
                                "type": "boolean"
                            },
                            "IsShareByEmailGuestUser": {
                                "type": "boolean"
                            },
                            "IsSiteAdmin": {
                                "type": "boolean"
                            },
                            "UserId": {
                                "type": "object",
                                "properties": {
                                    "__metadata": {
                                        "type": "object",
                                        "properties": {
                                            "type": {
                                                "type": "string"
                                            }
                                        }
                                    },
                                    "NameId": {
                                        "type": "string"
                                    },
                                    "NameIdIssuer": {
                                        "type": "string"
                                    }
                                }
                            }
                        },
                        "required": [
                            "__metadata",
                            "Alerts",
                            "Groups",
                            "Id",
                            "IsHiddenInUI",
                            "LoginName",
                            "Title",
                            "PrincipalType",
                            "Email",
                            "IsEmailAuthenticationGuestUser",
                            "IsShareByEmailGuestUser",
                            "IsSiteAdmin",
                            "UserId"
                        ]
                    }
                }
            }
        }
    }
}

we are only interested in the Email property that we want to use to send approvals...

here are the INPUTS results of the Parse JSON step that fails:

{
  "d": {
    "results": [
      {
        "__metadata": {
          "id": "https://*********.sharepoint.com/_api/Web/GetUserById(1691)",
          "uri": "https://*********.sharepoint.com/_api/Web/GetUserById(1691)",
          "type": "SP.User"
        },
        "Alerts": {
          "__deferred": {
            "uri": "https://*********.sharepoint.com/_api/Web/GetUserById(1691)/Alerts"
          }
        },
        "Groups": {
          "__deferred": {
            "uri": "https://*********.sharepoint.com/_api/Web/GetUserById(1691)/Groups"
          }
        },
        "Id": 1691,
        "IsHiddenInUI": false,
        "LoginName": "i:0#.f|membership|Surnamei@Company.org.uk",
        "Title": "Firstname Surname",
        "PrincipalType": 1,
        "Email": "Surnamef@Company.org.uk",
        "Expiration": "",
        "IsEmailAuthenticationGuestUser": false,
        "IsShareByEmailGuestUser": false,
        "IsSiteAdmin": false,
        "UserId": {
          "__metadata": {
            "type": "SP.UserIdInfo"
          },
          "NameId": "10033fff9fe67a30",
          "NameIdIssuer": "urn:federation:microsoftonline"
        },
        "UserPrincipalName": "Surnamef@Company.org.uk"
      },
      }
    ]
  }

here is the schema from the run results of the Parse JSON that fails:

{
  "type": "object",
  "properties": {
    "d": {
      "type": "object",
      "properties": {
        "results": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "__metadata": {
                "type": "object",
                "properties": {
                  "id": {
                    "type": "string"
                  },
                  "uri": {
                    "type": "string"
                  },
                  "type": {
                    "type": "string"
                  }
                }
              },
              "Alerts": {
                "type": "object",
                "properties": {
                  "__deferred": {
                    "type": "object",
                    "properties": {
                      "uri": {
                        "type": "string"
                      }
                    }
                  }
                }
              },
              "Groups": {
                "type": "object",
                "properties": {
                  "__deferred": {
                    "type": "object",
                    "properties": {
                      "uri": {
                        "type": "string"
                      }
                    }
                  }
                }
              },
              "Id": {
                "type": "integer"
              },
              "IsHiddenInUI": {
                "type": "boolean"
              },
              "LoginName": {
                "type": "string"
              },
              "Title": {
                "type": "string"
              },
              "PrincipalType": {
                "type": "integer"
              },
              "Email": {
                "type": "string"
              },
              "IsEmailAuthenticationGuestUser": {
                "type": "boolean"
              },
              "IsShareByEmailGuestUser": {
                "type": "boolean"
              },
              "IsSiteAdmin": {
                "type": "boolean"
              },
              "UserId": {
                "type": "object",
                "properties": {
                  "__metadata": {
                    "type": "object",
                    "properties": {
                      "type": {
                        "type": "string"
                      }
                    }
                  },
                  "NameId": {
                    "type": "string"
                  },
                  "NameIdIssuer": {
                    "type": "string"
                  }
                }
              }
            },
            "required": [
              "__metadata",
              "Alerts",
              "Groups",
              "Id",
              "IsHiddenInUI",
              "LoginName",
              "Title",
              "PrincipalType",
              "Email",
              "IsEmailAuthenticationGuestUser",
              "IsShareByEmailGuestUser",
              "IsSiteAdmin",
              "UserId"
            ]
          }
        }
      }
    }
  }
}

and here is the erro in the step from the run history:

[
  {
    "message": "Invalid type. Expected Object but got Null.",
    "lineNumber": 0,
    "linePosition": 0,
    "path": "d.results[3].UserId",
    "schemaId": "#/properties/d/properties/results/items/properties/UserId",
    "errorType": "type",
    "childErrors": []
  }
]

so how can I change the schema to successfully retrieve the email

[RezaDorrani]

Hi @livingstonep 

Use 

body('httpactionname')?['d']?['results']?[0]?['Email']

Regards,

Reza Dorrani

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly

[livingstonep]

after investigating the group a bit and the JSON, we tried:

_api/web/sitegroups/getbyname('Legal Owners')/users?$filter=UserId+ne+null

as the body of the HTTP Get and it worked...

[livingstonep]

---

@RezaDorrani wrote:

Hi @livingstonep 

Use 

body('httpactionname')?['d']?['results']?[0]?['Email']

Regards,

Reza Dorrani

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly

---

hi,

Thanks but we are using an Apply to Each control steop to loop through all the users in the group and send an approval to each one...

would that still work - we are parsing the JSON in order to get the list...

so how could I implement your suggestion in a loop?

[RezaDorrani · Accepted solution]

Hi @livingstonep 

So apply to each on body('httpactionname')?['d']?['results']

and then within the loop use

item()?['Email']

Regards,

Reza Dorrani

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly