How to create html table from blob json in Azure Logic App

Question

Hi I would like to create html tabe in Azure Logic App. I have data loaded from blob via Blob connector (Get blob content using path) I used Compose connector based on answer in this post But I get error -

Unable to process template language expressions in action 'Create_HTML_table' inputs at line '1' and column '1747': 'The template language function 'json' parameter is not valid. The provided value '[{"ServiceName":"routingsf","SubServiceName":"roadinfo/supportedmaps","ErrorType":"System.AggregateException","ErrorMessage":"One or more errors occurred. (Object reference not set to an instance of an object.)","Count":4} ]' cannot be parsed: 'Unexpected character encountered while parsing value: . Path '', line 0, position 0.'. Please see https://aka.ms/logicexpressions#json for usage details.'.

Code of Compose and Create HTML table connector is like :

"Compose": {
            "inputs": "@base64ToString(body('Get_blob_content_using_path').$content)",
            "runAfter": {
                "Get_blob_content_using_path_2": [
                    "Succeeded"
                ]
            },
            "type": "Compose"
        },
        "Create_HTML_table": {
            "inputs": {
                "format": "HTML",
                "from": "@json(outputs('Compose'))"
            },
            "runAfter": {
                "Compose": [
                    "Succeeded"
                ]
            },
            "type": "Table"
        },

Can you help?

Answer 1

Maybe you could try my way to create table. After get the content, use the Parse JSON , the content input json(body('Get_blob_content_using_path')) , the Scheme choose Use sample payload to generate schema and just copy and paste your json file content.

Then create HTML table , the From choose the expression array(body('Parse_JSON')) .

Here is the Logic flow and my result.

Hope this could help you, if you still have other questions, please let me know.

Update: I copy your json content tomy json file and test again. And It works.

So please make sure you logic app flow is right. Or you could share you flow.

Make sure these two steps are right: