Inability to call SPROC from Azure Logic Apps - can't find syntax for the parameters - sql

Question

Statement of intent:
I'm trying to automate a workflow, moving data periodically from a CSV in Sharepoint into a table in Azure SQL Database. I've gotten so far as 1) Formatting a JSON array, and 2) Creating a SPROC that successfully takes the text of the JSON Array, and imports it into the appropriate table.
Array appears like:
JSON = [{"col1":"col1Data","col2":"col2Data", ...}, <600-some more iterations>]
Invocation of stored procedure in SQL Management Studio looks like:
EXECUTE SprocName #json=N'<text of JSON above>'
===========================================
Problem:
Lack of documentation allowing me to properly format one of the following two SQL Connectors' parameters to link these two statements together:
Both Execute a Query (v2) and Execute a Stored Procedure (v2) require that parameters or query text be provided, but no indication of how said parameters should be formatted.
For example, in terms of executing a stored procedure that takes a single parameter #json, the following text "looks" correct, but results in an error:
"body": "#json=N'+#string(outputs('Convert_Rows_To_Json').body)+'"
Error:
Failed to save logic app UpdateDomainCoverage. The template validation failed: 'The template action 'Execute_stored_procedure_(V2)' at line '1' and column '3148' is not valid: "The template language expression 'json=N'+#string(outputs('Convert_Rows_To_Json').body)+'' is not valid: the string character '=' at position '4' is not expected.".'.
I've tried a number of variations, for both the #json parameter on Execute Stored Procedure, or simply building the query from whole cloth in Execute SQL, to no avail. Suggestions?

Answer 1

Here is sample from Code View of calling a stored procedure with parameter 'from' that takes a datetime value. When you pick the sproc in the Designer it should show all the parameters for you to populate.
"Get_jobs": {
"inputs": {
"body": {
"from": "#{convertFromUtc( variables('SelectTime'), variables('timeZone'), 'yyyy-MM-dd HH:mm:ss')}"
},
"host": {
"connection": {
"name": "#parameters('$connections')['sql_2']['connectionId']"
}
},
"method": "post",
"path": "/datasets/default/procedures/#{encodeURIComponent(encodeURIComponent('[dbo].[GetJobs]'))}"
},
"runAfter": {
"Refresh_data_for_BI": [
"Succeeded"
]
},
"type": "ApiConnection"
},

Answer 2

OK, I've been messing with this on-and-off in between other tasks today, and finally got tired of trying to get it done in the input of the "Execute query".
Brute Force Solution: I added another Javascript step, with the following code:
var input = workflowContext.actions.Convert_Rows_To_Json.outputs.body;
var sqlQuery = 'EXECUTE [ImportDomainCoverage] N\'' + input + '\'';
return sqlQuery;
It's not pretty (one more step), but it works.
Now to see if I can modify things sufficiently to parameterize the table name, rather than needing six steps for each table.

Answer 3

Finally figured out the syntax. Didn't find any documentation, just tried working from one error message to another.
"Pump_data_into_target_table": {
"inputs": {
"body": {
"json": "#{body('Pull_FeedbackItems_from_source').ResultSets['Table1']}"
},
"headers": {
"Content-Type": "application/json"
},
"host": {
"connection": {
"name": "#parameters('$connections')['sql_2']['connectionId']"
}
},
"method": "post",
"path": "/v2/datasets/#{encodeURIComponent(encodeURIComponent('servername.database.windows.net'))},#{encodeURIComponent(encodeURIComponent('dbname'))}/procedures/#{encodeURIComponent(encodeURIComponent('sprocname'))}"
},
"runAfter": {
"Pull_FeedbackItems_from_Source": [
"Succeeded"
]
},
"type": "ApiConnection"
}
The fundamental answer to my question was: provide the parameter/value pairs as a JSON object. See the value of the "body" element in the listing above. For this to work, though, one also has to enter the "headers" element, which I didn't even see documented on the API call. Was led to that by an error message stating that the content type was plain text, when it was clearly json.