Error [Url can't be empty] with resource "pagerduty_extension"

[heldersepu]

Terraform Version

Terraform v0.11.13

Affected Resource(s)

pagerduty_extension

Terraform Configuration Files

resource "pagerduty_extension" "slack"{
  name = "My Web App Extension"
   extension_schema = "${data.pagerduty_extension_schema.webhook.id}"
  extension_objects    = ["${pagerduty_service.example.id}"]

  config = <<EOF
{
    "restrict": "any",
    "notify_types": {
            "resolve": false,
            "acknowledge": false,
            "assignments": false
    },
    "access_token": "XXX"
}
EOF

}.

Here is the full code:
https://github.com/heldersepu/hs-scripts/blob/master/TerraForm/pagerduty/pagerduty.tf

Debug Output

Error: Error applying plan:

1 error(s) occurred:

* ....pagerduty_extension.slack: 1 error(s) occurred:

* pagerduty_extension.slack: 
  POST API call to https://api.pagerduty.com/extensions failed 400 Bad Request. 
  Code: 2001, Errors: [Url can't be empty], Message: Invalid Input Provided

Expected Behavior

It should complete without errors?

Actual Behavior

We get that strange 'Url can't be empty' error but according to the documentation the endpoint_url is optional

[pdecat]

Hi, the endpoint URL is optional API wise in most cases, and the provider was updated to match that behavior in #83, but I believe it can be required in some cases such as the pagerduty_extension_schema named Generic V2 Webhook you are using here.

For the pagerduty_extension_schema named Slack, the API accepts pagerduty_extension with no endpoint_url defined.

[heldersepu]

@pdecat would be nice if that:

optional in most cases ... it can be required in some cases

was included in the documentation

Yes changing the pagerduty_extension_schema to the one named Slack works without the endpoint_url

[karancode]

@heimweh @pdecat I updated the documentation #164. PTAL.