Extract JSON from a SharePoint List

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Posted on by ClaireAllen

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Hello Community,

I need to build a flow where I can extract data from a SharePoint list, but the information is in JSON

We have various information that is captured in the JSON for holidays, i.e. cancelled, adjustments, leave request

I've not done anything like this before and I would like to extract this information from SharePoint and potentially put it into another SharePoint list or send via email as I've had a request to get a summary of a teams holiday.

Can anyone help me please with Screenshots on how I can achieve this?

Screenshot 2020-10-21 120754.png

This is the information I want to extract

mainly start date, end date, comment and units (no of days taken)

Thank you in advance for any help / screen shots provided

Kind regards

Claire

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Building flows

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Paulie78 8,422 Moderator on at

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Use the Get Items from SharePoint action in Flow and then use the "Parse JSON" action against the value retrieved from the JSON column.

That should give you the data you are after.

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fchopo 8,003 Moderator on at

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Hello @ClaireAllen

You could parse the JSON value using the "Parse JSON" action, where the schema should be generated with some sample data like the one you shared:

The generated schema is this one:

{ "type": "object", "properties": { "start": { "type": "string" }, "end": { "type": "string" }, "comment": { "type": "string" }, "units": { "type": "string" }, "GUID": { "type": "string" }, "Type": { "type": "string" } } }

In this case, we parse the JSON value stored in the "Title" column, and after that, we can access the values of the json data:

Hope it helps!

Ferran

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ClaireAllen 762 on at

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Hello @fchopo ,
Thank you for the information and screen shots, it really does help,
So I built the flow, but it does not seem to be the same, my Parse JSON are all Types and yours shows as the information I am looking for, i.e. Start Date, End Date etc
This is how the Parse JSON is configured
{
    "type": "object",
    "properties": {
        "type": {
            "type": "string"
        },
        "properties": {
            "type": "object",
            "properties": {
                "start": {
                    "type": "object",
                    "properties": {
                        "type": {
                            "type": "string"
                        }
                    }
                },
                "end": {
                    "type": "object",
                    "properties": {
                        "type": {
                            "type": "string"
                        }
                    }
                },
                "comment": {
                    "type": "object",
                    "properties": {
                        "type": {
                            "type": "string"
                        }
                    }
                },
                "units": {
                    "type": "object",
                    "properties": {
                        "type": {
                            "type": "string"
                        }
                    }
                },
                "GUID": {
                    "type": "object",
                    "properties": {
                        "type": {
                            "type": "string"
                        }
                    }
                },
                "Type": {
                    "type": "object",
                    "properties": {
                        "type": {
                            "type": "string"
                        }
                    }
                }
            }
        }
    }
}
The flow ran, but then I got an error

If you are able to help where I went wrong, it would be really appreciated,
Thanks again for the screen shots, as I felt I actually got somewhere
Kind regards
Claire

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Pstork1 68,697 Most Valuable Professional on at

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The issue you are running into is because the Generate from sample creates a schema where all the values are considered "string". The problem is that when running the flow some of those values may be missing (null). To fix it edit the JSON schema created from the sample data by changing the

"type": { "type": "string" }

to

"type": { "type": ["string", "null"] }

This will allow for that property to be null. You may also need to edit the required field list at the bottom of the schema to remove non-required fields.

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ClaireAllen 762 on at

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Hello @Pstork1
Thank you for the information, I tried that and received an error message to enter valid JSON

Kind regards
Claire

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fchopo 8,003 Moderator on at

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Hi @ClaireAllen

Please, apply the solution by @Pstork1 to all the fields in the schema. It seems that some fields might have no value, and the Parse JSON action expects all of them to be informed. It should be something like this:

{ "type": "object", "properties": { "start": { "type": ["string", "null"] }, "end": { "type": ["string", "null"] }, "comment": { "type": ["string", "null"] }, "units": { "type": ["string", "null"] }, "GUID": { "type": ["string", "null"] }, "Type": { "type": ["string", "null"] } } }

Hope it helps!

Ferran

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Pstork1 68,697 Most Valuable Professional on at

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Can you show us the edited schema and the error message?

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ClaireAllen 762 on at

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Hello @Pstork1 , @fchopo

I've updated the Schema as mentioned
{
    "type": "object",
    "properties": {
        "start": {
            "type": [
                "string",
                "null"
            ]
        },
        "end": {
            "type": [
                "string",
                "null"
            ]
        },
        "comment": {
            "type": [
                "string",
                "null"
            ]
        },
        "units": {
            "type": [
                "string",
                "null"
            ]
        },
        "GUID": {
            "type": [
                "string",
                "null"
            ]
        },
        "Type": {
            "type": [
                "string",
                "null"
            ]
        }
    }
}

But I still get an error message
Error details as requested

Thank you for your assistance,
Kind regards
Claire

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fchopo 8,003 Moderator on at

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Hello @ClaireAllen

By the screen captures you shared, it seems that the "approval JSON" column has different fields and values, so the structure is not always the same. For example, in a row there's a field called "comment", but in another one, this field is not provided.

In order to work, the JSON structure should be always the same.

Hope it helps!

Ferran

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ClaireAllen 762 on at

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Thank you @fchopo
That is the case with my data,

Thank you for your support
Regards
Claire

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