cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
saadu
Employee
Employee

parse JSON: Ignoring null value's when parsing JSON payload

All,

 

Question:

What are my options to make sure my 'parse JSON'  ignores/accepts null values when parsing JSON payload from a Http Response.  Are there alternate options to extract json elements for my scenario ?

 

 

Context:

---------

I am buidling flow to send out email based on contents of http JSON response. JSON response will have attributes with value as null.  Parse JSON is throwing error message  "message": "Invalid type. Expected Object but got Null." I do not use the json attributes with null values in the flow and ok to loose it.

 

 

schema

----------

{
  "type": "array",
  "items": {
    "type": "object",
    "properties": {
      "A": {
        "type": "string"
      },
      "B: {
        "type": "string"
      },
      "C": {
        "type": "string"
      },
      "D": {
        "type": "object"
      },
      "E": {
        "type": "string"
      },
      "F": {
        "type": "string"
      },
      "G": {
        "type": "string"
      },
      "H": {
        "type": "string"
      }
    },
    "required": [
      "A",
      "B",
      "C",
      "D",
      "E",
      "F",
      "G"
    
    ]
  }
}

 

 

 

JSON Payload

-------------------

{
      "A": "dfd",
      "B": "ASFS",
      "C": "asfs",
      "D": null,
      "E": "asFF",
      "F": "3244231",
      "D": "43124",
      "G": "qwqdas",
      "H": "zxz"
 }
     

 

 

 

Error Message

 

"message": "Invalid type. Expected Object but got Null."
   

 

 

15 REPLIES 15
v-micsh-msft
Community Support
Community Support

Hi @saadu,

 

I could confirm that the NULL value can't be recognized by Microsoft Flow, at least currently.

Syntax for GetRows

The empty function under Workflow Definition Language would work with the NULL value, but for other functions, not working.

I will forward this from my side, hope there should be some workarounds for this.

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.
v-micsh-msft
Community Support
Community Support

Hi @saadu,

 

Update here for the NULL value in WDL:
Quoted from Staff Samuel

"

Yes, technically the null operator ('?') and/or coalesce() function would work, but they require some hand-crafting if being used in the current Flow editor UI.

 

The workaround is that you can write a raw logicapp expression as long as it evaluates to a string. So for the possibly-null field, instead of using the automatic "Description" token in the UI, you'd write something like:

 

    Desc: @{coalesce(triggerBody()['description'], 'default description text')}

 

The caveats for falling back to a raw logicapp expresion:

    1. Must evaluate to a string

    2. Must have a string or character before the @ sign

    3. The field will become read-only after the initial save.

"

Reference: Is there a way to process null values from CRM to SharePoint.

Hope the information above is helpful.

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.

Hi @v-micsh-msft,

 

Can you elaborate on this a little further? Are we using the operator within the Parse JSON function?

Ben_Love
Advocate IV
Advocate IV

I recently had a similar challenge. My solution was to allow NULL values through my JSON Schema. In this way any NULL values passed did not cause error. 

 

EG:

 

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

Thanks @Ben_Love, very useful!

LOVE YOU, BEN! This really helped, thanks! 🙂 

Thank you

virakones
Continued Contributor
Continued Contributor

@Ben_Love 

Thank you!! Super helpful. 

Thank you Ben, this resolved my import issue.

Does anyone have a simple strategy/implementation for when importing data into a list to handle whether:
Record already exists
a) update if record has changed
b) skip if no change

Got link to point me in the right direction?

Does your new record contain any unique information like a record ID? You could try finding the item in the list before inserting. I'm assuming you mean SharePoint lists. This might help: Retrieving Single Item from SharePoint List in Microsoft Flow

Xinren
New Member

Unfortunately, this does not work on array data types. Can anyone suggest?

Thank you so much for this. Saved lot of my time.

pankajIND
Regular Visitor

you need to pass string in that case, under type pass two array 1. string 2. null. refer to below one-  

 

 

"EmployeeCountry":

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

@Ben_Love How can I do that? I know nothing about JSON but seems I will need to Learn. 

virakones
Continued Contributor
Continued Contributor

April Dunham has a good intro video on understanding JSON

Helpful resources

Announcements

Celebrating the May Super User of the Month: Laurens Martens

  @LaurensM  is an exceptional contributor to the Power Platform Community. Super Users like Laurens inspire others through their example, encouragement, and active participation. We are excited to celebrated Laurens as our Super User of the Month for May 2024.   Consistent Engagement:  He consistently engages with the community by answering forum questions, sharing insights, and providing solutions. Laurens dedication helps other users find answers and overcome challenges.   Community Expertise: As a Super User, Laurens plays a crucial role in maintaining a knowledge sharing environment. Always ensuring a positive experience for everyone.   Leadership: He shares valuable insights on community growth, engagement, and future trends. Their contributions help shape the Power Platform Community.   Congratulations, Laurens Martens, for your outstanding work! Keep inspiring others and making a difference in the community!   Keep up the fantastic work!        

Check out the Copilot Studio Cookbook today!

We are excited to announce our new Copilot Cookbook Gallery in the Copilot Studio Community. We can't wait for you to share your expertise and your experience!    Join us for an amazing opportunity where you'll be one of the first to contribute to the Copilot Cookbook—your ultimate guide to mastering Microsoft Copilot. Whether you're seeking inspiration or grappling with a challenge while crafting apps, you probably already know that Copilot Cookbook is your reliable assistant, offering a wealth of tips and tricks at your fingertips--and we want you to add your expertise. What can you "cook" up?   Click this link to get started: https://aka.ms/CS_Copilot_Cookbook_Gallery   Don't miss out on this exclusive opportunity to be one of the first in the Community to share your app creation journey with Copilot. We'll be announcing a Cookbook Challenge very soon and want to make sure you one of the first "cooks" in the kitchen.   Don't miss your moment--start submitting in the Copilot Cookbook Gallery today!     Thank you,  Engagement Team

Announcing Power Apps Copilot Cookbook Gallery

We are excited to share that the all-new Copilot Cookbook Gallery for Power Apps is now available in the Power Apps Community, full of tips and tricks on how to best use Microsoft Copilot as you develop and create in Power Apps. The new Copilot Cookbook is your go-to resource when you need inspiration--or when you're stuck--and aren't sure how to best partner with Copilot while creating apps.   Whether you're looking for the best prompts or just want to know about responsible AI use, visit Copilot Cookbook for regular updates you can rely on--while also serving up some of your greatest tips and tricks for the Community. Check Out the new Copilot Cookbook for Power Apps today: Copilot Cookbook - Power Platform Community.  We can't wait to see what you "cook" up!    

Welcome to the Power Automate Community

You are now a part of a fast-growing vibrant group of peers and industry experts who are here to network, share knowledge, and even have a little fun.   Now that you are a member, you can enjoy the following resources:   Welcome to the Community   News & Announcements: The is your place to get all the latest news around community events and announcements. This is where we share with the community what is going on and how to participate.  Be sure to subscribe to this board and not miss an announcement.   Get Help with Power Automate Forums: If you're looking for support with any part of Power Automate, our forums are the place to go. From General Power Automate forums to Using Connectors, Building Flows and Using Flows.  You will find thousands of technical professionals, and Super Users with years of experience who are ready and eager to answer your questions. You now have the ability to post, reply and give "kudos" on the Power Automate community forums. Make sure you conduct a quick search before creating a new post because your question may have already been asked and answered. Galleries: The galleries are full of content and can assist you with information on creating a flow in our Webinars and Video Gallery, and the ability to share the flows you have created in the Power Automate Cookbook.  Stay connected with the Community Connections & How-To Videos from the Microsoft Community Team. Check out the awesome content being shared there today.   Power Automate Community Blog: Over the years, more than 700 Power Automate Community Blog articles have been written and published by our thriving community. Our community members have learned some excellent tips and have keen insights on the future of process automation. In the Power Automate Community Blog, you can read the latest Power Automate-related posts from our community blog authors around the world. Let us know if you'd like to become an author and contribute your own writing — everything Power Automate-related is welcome.   Community Support: Check out and learn more about Using the Community for tips & tricks. Let us know in the Community Feedback  board if you have any questions or comments about your community experience. Again, we are so excited to welcome you to the Microsoft Power Automate community family. Whether you are brand new to the world of process automation or you are a seasoned Power Automate veteran - our goal is to shape the community to be your 'go to' for support, networking, education, inspiration and encouragement as we enjoy this adventure together.     Power Automate Community Team

Hear what's next for the Power Up Program

Hear from Principal Program Manager, Dimpi Gandhi, to discover the latest enhancements to the Microsoft #PowerUpProgram, including a new accelerated video-based curriculum crafted with the expertise of Microsoft MVPs, Rory Neary and Charlie Phipps-Bennett. If you’d like to hear what’s coming next, click the link below to sign up today! https://aka.ms/PowerUp  

Tuesday Tip | How to Report Spam in Our Community

It's time for another TUESDAY TIPS, your weekly connection with the most insightful tips and tricks that empower both newcomers and veterans in the Power Platform Community! Every Tuesday, we bring you a curated selection of the finest advice, distilled from the resources and tools in the Community. Whether you’re a seasoned member or just getting started, Tuesday Tips are the perfect compass guiding you across the dynamic landscape of the Power Platform Community.   As our community family expands each week, we revisit our essential tools, tips, and tricks to ensure you’re well-versed in the community’s pulse. Keep an eye on the News & Announcements for your weekly Tuesday Tips—you never know what you may learn!   Today's Tip: How to Report Spam in Our Community We strive to maintain a professional and helpful community, and part of that effort involves keeping our platform free of spam. If you encounter a post that you believe is spam, please follow these steps to report it: Locate the Post: Find the post in question within the community.Kebab Menu: Click on the "Kebab" menu | 3 Dots, on the top right of the post.Report Inappropriate Content: Select "Report Inappropriate Content" from the menu.Submit Report: Fill out any necessary details on the form and submit your report.   Our community team will review the report and take appropriate action to ensure our community remains a valuable resource for everyone.   Thank you for helping us keep the community clean and useful!

Users online (5,019)