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Reading and upating complex JSON object for posting

I'm creating a process that connects to our school ERP to retrieve lists of values.
The process consists, once authenticated, in requesting a predefined query stored in the system.
The procedure therefore consists in pre-setting a query in the ERP system with the desired fields and saving it.
Then, using Power Automate, I can request the definition of this query and receive a complex JSON object.
Finally, I have to repost the query in order to obtain the list of desired records. The query doesn't store any parameter values and can potentially return thousands of records. So before reposting, I need to add parameters to limit its scope. This is where my problem lies, as I don't know how to modify a complex JSON object in order to repost it.
I've tried nested parsing of my JSON object to get to the parameter level of my query and then recompose the final object, but it's proving too complex. So I don't know if there's another possibility:

 

After the authentication process, I request the definition of the predefined query 'Kedros_Classes'.

forstera_1-1687759956227.png

 

I then receive something like that :

the list of fields in my query. For each field, I should be able to add a value in the "SearchText" parameter to limit the search.

"body": {
        "Id": 851,
        "DataClassId": "Anlass",
        "Designation": "Kedros_classes",
        "SearchFields": [
            {
                "Id": 49,
                "FieldId": "AnlassNr",
                "Position": 1,
                "Width": 113,
                "HeaderText": "Anlassnummer",
                "TypeName": "String",
                "SearchText": null,
                "SortDirection": "asc",
                "DropDownItems": null,
                "GroupIndex": null,
                "PrimaryKeyIndex": null,
                "IsListColumn": false,
                "Operator": null
            },
            {
                "Id": 51,
                "FieldId": "AnlassBez",
                "Position": 2,
                "Width": 121,
                "HeaderText": "Anlassbezeichnung",
                "TypeName": "String",
                "SearchText": null,
                "SortDirection": null,
                "DropDownItems": null,
                "GroupIndex": null,
                "PrimaryKeyIndex": null,
                "IsListColumn": false,
                "Operator": null
            },
            {
                "Id": 59,
                "FieldId": "Veranstalter",
                "Position": 3,
                "Width": 67,
                "HeaderText": "Veranstalter",
                "TypeName": "String",
                "SearchText": null,
                "SortDirection": null,
                "DropDownItems": [
                    "GBJB",
                    "GBJB-ECG",
                    "GBJB-ESC",
                    "GBJB-Pass",
                    "GBJB-RRM",
                    "GBSL",
                    "GBSL-FMS",
                    "GBSL-GAB",
                    "GBSL-HMS",
                    "GBSL-MAR",
                    "GBSL-WMS"
                ],
                "GroupIndex": null,
                "PrimaryKeyIndex": null,
                "IsListColumn": false,
                "Operator": null
            },
            {
                "Id": 93,
                "FieldId": "Leitung IDPerson",
                "Position": 4,
                "Width": 164,
                "HeaderText": "ID Person der Hauptleitung",
                "TypeName": "Int32",
                "SearchText": null,
                "SortDirection": null,
                "DropDownItems": null,
                "GroupIndex": null,
                "PrimaryKeyIndex": null,
                "IsListColumn": false,
                "Operator": null
            },
            {
                "Id": 52,
                "FieldId": "Leitungsrollen",
                "Position": 5,
                "Width": 271,
                "HeaderText": "Anlassleitung",
                "TypeName": "String",
                "SearchText": null,
                "SortDirection": null,
                "DropDownItems": null,
                "GroupIndex": null,
                "PrimaryKeyIndex": null,
                "IsListColumn": true,
                "Operator": null
            },
            {
                "Id": 94,
                "FieldId": "Anlassleitung",
                "Position": 6,
                "Width": 154,
                "HeaderText": "Leitung (Publikation)",
                "TypeName": "String",
                "SearchText": null,
                "SortDirection": null,
                "DropDownItems": null,
                "GroupIndex": null,
                "PrimaryKeyIndex": null,
                "IsListColumn": false,
                "Operator": null
            },
            {
                "Id": 98,
                "FieldId": "TEXTE_LABEL01",
                "Position": 7,
                "Width": 114,
                "HeaderText": "Beschriftung Text 1",
                "TypeName": "String",
                "SearchText": null,
                "SortDirection": null,
                "DropDownItems": null,
                "GroupIndex": null,
                "PrimaryKeyIndex": null,
                "IsListColumn": false,
                "Operator": null
            }
        ],
        "Me": false,
        "IdObject": "Anlass_Kedros_classes",
        "HRef": "/restApi/Search/Definitions/Anlass_Kedros_classes"
    }

my problem is the following: how can I reach the 'SearchText' parameter of a field and replace the null value by a specific value and then repost the json to get some requested values....
Thanks to all for your help

1 ACCEPTED SOLUTION

Accepted Solutions

Hi @forstera ,

 

I managed to make it. Please see in below screenshots:

vjefferni_0-1688006598218.pngvjefferni_1-1688006632652.png

vjefferni_2-1688006669204.png

 

Compose1: output of HTTP request

Compose2: to get the part before the first "[":

substring(string(outputs('Compose')),0,indexOf(string(outputs('Compose')),'['))

Compose3: to get the part after the last "]":

substring(string(outputs('Compose')),add(indexOf(string(outputs('Compose')),']'),1))

Append to array variable, true branch to update the value, false branch use original item:

replace(string(items('Apply_to_each')),'"SearchText": null','"SearchText": "YourSearchText"')

Compose4: to concatenate all together:

concat(outputs('Compose_2'),string(variables('11')),outputs('Compose_3'))

 

Parse JSON schema:

{
    "type": "object",
    "properties": {
        "Id": {
            "type": "integer"
        },
        "DataClassId": {
            "type": "string"
        },
        "Designation": {
            "type": "string"
        },
        "SearchFields": {
            "type": "array",
            "items": {
                "type": "object",
                "properties": {
                    "Id": {
                        "type": "integer"
                    },
                    "FieldId": {
                        "type": "string"
                    },
                    "Position": {
                        "type": "integer"
                    },
                    "Width": {
                        "type": "integer"
                    },
                    "HeaderText": {
                        "type": "string"
                    },
                    "TypeName": {
                        "type": "string"
                    },
                    "SearchText": {
                        "anyOf": [
                            {
                                "type": "string"
                            },
                            {
                                "type": "null"
                            }
                        ]
                    },
                    "SortDirection": {
                        "anyOf": [
                            {
                                "type": "string"
                            },
                            {
                                "type": "null"
                            }
                        ]
                    },
                    "DropDownItems": {
                        "anyOf": [
                            {
                                "type": "array"
                            },
                            {
                                "type": "null"
                            }
                        ]
                    },
                    "GroupIndex": {
                        "anyOf": [
                            {
                                "type": "string"
                            },
                            {
                                "type": "null"
                            }
                        ]
                    },
                    "PrimaryKeyIndex": {
                        "anyOf": [
                            {
                                "type": "string"
                            },
                            {
                                "type": "null"
                            }
                        ]
                    },
                    "IsListColumn": {
                        "type": "boolean"
                    },
                    "Operator": {
                        "anyOf": [
                            {
                                "type": "string"
                            },
                            {
                                "type": "null"
                            }
                        ]
                    }
                },
                "required": [
                    "Id",
                    "FieldId",
                    "Position",
                    "Width",
                    "HeaderText",
                    "TypeName",
                    "SearchText",
                    "SortDirection",
                    "DropDownItems",
                    "GroupIndex",
                    "PrimaryKeyIndex",
                    "IsListColumn",
                    "Operator"
                ]
            }
        },
        "Me": {
            "type": "boolean"
        },
        "IdObject": {
            "type": "string"
        },
        "HRef": {
            "type": "string"
        }
    }
}

 

Best regards,

Community Support Team _ Jeffer Ni

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

View solution in original post

6 REPLIES 6
v-jefferni
Community Support
Community Support

Hi @forstera ,

 

You can simply replace '"SearchText": null' with '"SearchText": "YourSearchText"'in a Compose action:

 

replace(OutputJSON,'"SearchText": null','"SearchText": "YourSearchText"')

 

Best regards,

Community Support Team _ Jeffer Ni

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

@v-jefferni thanks very much for your help.

but how can I say if I'd like, for example, replace the searchText null value of the field ID 94. Can I add  this condition in the replace function ? (something like replace SearchText:null, SearchText:Value where id = 94 ) ?

 

Hi @forstera ,

 

Sorry, I can't find a way to change a specific value from JSON outputs of a request. Please add a new post in the forum, maybe other users could help.

 

Best regards,

Community Support Team _ Jeffer Ni

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

Dear @v-jefferni ,

 

Thanks for taking the trouble to reply 🙂
I've done a bit of research (I'm a beginner) and I've managed to target the right recording using this method:

forstera_0-1687947062018.png

 

I should then be able to modify with your function the value of the searchfield parameter.

 

What should be much morr difficult for me  will be to recreate the orignal json object with the modified field ...

 

Hi @forstera ,

 

I managed to make it. Please see in below screenshots:

vjefferni_0-1688006598218.pngvjefferni_1-1688006632652.png

vjefferni_2-1688006669204.png

 

Compose1: output of HTTP request

Compose2: to get the part before the first "[":

substring(string(outputs('Compose')),0,indexOf(string(outputs('Compose')),'['))

Compose3: to get the part after the last "]":

substring(string(outputs('Compose')),add(indexOf(string(outputs('Compose')),']'),1))

Append to array variable, true branch to update the value, false branch use original item:

replace(string(items('Apply_to_each')),'"SearchText": null','"SearchText": "YourSearchText"')

Compose4: to concatenate all together:

concat(outputs('Compose_2'),string(variables('11')),outputs('Compose_3'))

 

Parse JSON schema:

{
    "type": "object",
    "properties": {
        "Id": {
            "type": "integer"
        },
        "DataClassId": {
            "type": "string"
        },
        "Designation": {
            "type": "string"
        },
        "SearchFields": {
            "type": "array",
            "items": {
                "type": "object",
                "properties": {
                    "Id": {
                        "type": "integer"
                    },
                    "FieldId": {
                        "type": "string"
                    },
                    "Position": {
                        "type": "integer"
                    },
                    "Width": {
                        "type": "integer"
                    },
                    "HeaderText": {
                        "type": "string"
                    },
                    "TypeName": {
                        "type": "string"
                    },
                    "SearchText": {
                        "anyOf": [
                            {
                                "type": "string"
                            },
                            {
                                "type": "null"
                            }
                        ]
                    },
                    "SortDirection": {
                        "anyOf": [
                            {
                                "type": "string"
                            },
                            {
                                "type": "null"
                            }
                        ]
                    },
                    "DropDownItems": {
                        "anyOf": [
                            {
                                "type": "array"
                            },
                            {
                                "type": "null"
                            }
                        ]
                    },
                    "GroupIndex": {
                        "anyOf": [
                            {
                                "type": "string"
                            },
                            {
                                "type": "null"
                            }
                        ]
                    },
                    "PrimaryKeyIndex": {
                        "anyOf": [
                            {
                                "type": "string"
                            },
                            {
                                "type": "null"
                            }
                        ]
                    },
                    "IsListColumn": {
                        "type": "boolean"
                    },
                    "Operator": {
                        "anyOf": [
                            {
                                "type": "string"
                            },
                            {
                                "type": "null"
                            }
                        ]
                    }
                },
                "required": [
                    "Id",
                    "FieldId",
                    "Position",
                    "Width",
                    "HeaderText",
                    "TypeName",
                    "SearchText",
                    "SortDirection",
                    "DropDownItems",
                    "GroupIndex",
                    "PrimaryKeyIndex",
                    "IsListColumn",
                    "Operator"
                ]
            }
        },
        "Me": {
            "type": "boolean"
        },
        "IdObject": {
            "type": "string"
        },
        "HRef": {
            "type": "string"
        }
    }
}

 

Best regards,

Community Support Team _ Jeffer Ni

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

@v-jefferni  Wow !!

I'm very impressed by your work, thanks so much !!!

I understand what you did, I will have now do decrypt each function to undersand it very well.

thanks so much for your help !! I should send you some swiss chocolate !! 

 

Thanks again and all the best to you 

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