use dynamic valuse based on the datafactory pipeline name - azure

Question

I am using the email.json config file from the storage account where I have data as below:
{
"DvD145": "alfred.m#app.com,moris.l#app.com",
"TeD149": "victor#app.com",
"PdD148": "lowed#app.com"
}
I am using the following code in the data factory
{
"name": "pipeline2",
"properties": {
"activities": [
{
"name": "Lookup1",
"type": "Lookup",
"dependsOn": [],
"policy": {
"timeout": "7.00:00:00",
"retry": 0,
"retryIntervalInSeconds": 30,
"secureOutput": false,
"secureInput": false
},
"userProperties": [],
"typeProperties": {
"source": {
"type": "JsonSource",
"storeSettings": {
"type": "AzureBlobFSReadSettings",
"recursive": false,
"enablePartitionDiscovery": false
},
"formatSettings": {
"type": "JsonReadSettings"
}
},
"dataset": {
"referenceName": "Json1",
"type": "DatasetReference"
},
"firstRowOnly": false
}
},
{
"name": "Set variable1",
"type": "SetVariable",
"dependsOn": [
{
"activity": "Lookup1",
"dependencyConditions": [
"Succeeded"
]
}
],
"userProperties": [],
"typeProperties": {
"variableName": "ToEmail",
"value": {
"value": "#activity('Lookup1').output.value[0].DvD145",
"type": "Expression"
}
}
}
],
"variables": {
"ToEmail": {
"type": "String"
}
},
"annotations": []
}
}
enter image description here
the above code is working fine when I provide the pipeline name in the dynamic content as
#activity('Lookup1').output.value[0].DvD145
I was trying to make it dynamic which would be specific to each environment pipeline
#activity('Lookup1').output.value[pipeline().DataFactory]
but this approach is throwing an error saying
The expression 'activity('Lookup1').output.value[pipeline().DataFactory]' cannot be evaluated because property 'DvD145' cannot be selected. Array elements can only be selected using an integer index.
can I get some suggestions on how to rectify the error?

Answer 1

The expression activity('Lookup1').output.value[pipeline().DataFactory]' cannot be evaluated because property 'DvD145' cannot be selected. Array elements can only be selected using an integer index.
The above error happens because of activity('Lookup1').output.value is an array value and the index of this should be integer but pipeline().DataFactory is a string value
The below is my json with columns names as datafactory workspace name
{
"azV123":"alfred.m#app.com,moris.l#app.com",
"TeD149":"victor#app.com",
"PdD148":"lowed#app.com"
}
you can get the datafactory name dynamicly with this below expresion :
#activity('Lookup1').output.value[0][pipeline().DataFactory]
Output: