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Azure – Dynamically create property name for connection string bicep module

I’m creating bicep module and by specific condition I need to check if I should create connection string:

param connectionStringName string = 'TestConnectionString'
param connectionStringValue string = ''

resource connectionstring 'Microsoft.Web/sites/config@2023-01-01' = if (addConnectionString) {
  name: 'connectionstrings'
  parent: appServiceFunction
  properties: {
    connectionStringName: {
      value: connectionStringValue
      type: 'SQLServer'
    }
  }
}

Is it possible to dynamically create connection string name, so when I build bicep file to get TestConnectionString instead of connectionStringName, connectionStringName property is ConnStringValueTypePair type, and I didn’t find any way to explicitly define name for such property.

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2

Answers


  1. 0

    I guess you can do this by using a condition block. You can use the if expression inside the condition block to set different values based on your condition.

    param connectionStringName string = 'TestConnectionString'
param connectionStringValue string = ''
param addConnectionString bool = true

var dynamicConnectionStringName = addConnectionString ? connectionStringName : 'DefaultConnectionString'

resource connectionstring 'Microsoft.Web/sites/config@2023-01-01' = {
  name: 'connectionstrings'
  parent: appServiceFunction
  properties: {
    connectionStringName: dynamicConnectionStringName
    type: 'SQLServer'
  }
  condition: addConnectionString
}

    like this above we have made dynamicConnectionStringName is dynamically set based on the condition. If addConnectionString is true, it uses the connectionStringName parameter; else, it uses a default value (in this case, ‘DefaultConnectionString’).

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  2. 0

    You can use string interpolation, that will use the connectionStringName parameter value as the property name:

    resource connectionstring 'Microsoft.Web/sites/config@2023-01-01' = if (addConnectionString) {
  name: 'connectionstrings'
  parent: appServiceFunction
  properties: {
    '${connectionStringName}': {
      value: connectionStringValue
      type: 'SQLServer'
    }
  }
}
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