cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
ChrisCC
Advocate II
Advocate II

Handling NULL in Parse JSON

I have an API which has the following characteristics:

 

Schema:

 

{
  "type": "array",
  "items": {
    "type": "object",
    "properties": {
      "StartDate": {
        "type": "string"
      },
      "EndDate: {
        "type": "string"
      },

    }

  }
}

**************************

Example failure payload:

{
      "StartDate": "6/15/2017
",
      "EndDate": null,
 }

 

Note that this works if both StartDate and EndDate are not null

 

The Parse JSON step with the above schema returns "Error - Expected String, received null"

 

Replacing the EndDate data type "string" with "any" causes it to be unreadable in following steps (as though it was never parsed) and changing it to "data" causes an internal server error.

 

 

Is there any way to create a schema which allows null values in the "Parse JSON" step?

1 ACCEPTED SOLUTION

Accepted Solutions
JoeGasper
Advocate I
Advocate I

This seems to be working:

 

"heat_index_f": {
"type": ["number","null"]
},
"heat_index_c": {
"type": ["number","null"]
},

 

https://powerusers.microsoft.com/t5/Building-Flows/parse-JSON-Ignoring-null-value-s-when-parsing-JSO...

View solution in original post

2 REPLIES 2
v-micsh-msft
Community Support
Community Support

Hi @ChrisCC,

 

I don't think there would be schema which could allow Null value.

Please consider replace the Null value with some string, or add a condition to check if the value is Null with the empty funciton.

 

Or you may consider submit this as an idea, to suggest add the Null support under parse JSON action.

 

Regards,

Michael

Community Support Team _ Michael Shao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
JoeGasper
Advocate I
Advocate I

This seems to be working:

 

"heat_index_f": {
"type": ["number","null"]
},
"heat_index_c": {
"type": ["number","null"]
},

 

https://powerusers.microsoft.com/t5/Building-Flows/parse-JSON-Ignoring-null-value-s-when-parsing-JSO...

View solution in original post

Helpful resources

Announcements
MPA User Group

Welcome to the User Group Public Preview

Check out new user group experience and if you are a leader please create your group

MSFTBizAppsLaunchEvent

Experience what’s next for Power Virtual Agents

See the latest Power Automate innovations, updates, and demos from the Microsoft Business Applications Launch Event.

New Super Users

Meet the Power Automate Super Users!

Many congratulations to the Season 1 2021 Flownaut Crew!

Power Platform ISV STudio

Power Platform ISV Studio

ISV Studio is the go-to Power Platform destination for ISV’s to monitor & manage applications post-AppSource publish.

Users online (49,358)