C# Dynamics CRM: Find Tasks for an Incident

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Returns tasks for a specific incident.

Documentation: https://docs.microsoft.com/en-us/dynamics365/customer-engagement/web-api/task?view=dynamics-ce-odata-9

CURL Command

curl -X GET https://my-dynamics-domain.api.crm.dynamics.com/api/data/v9.0/tasks \
  -H "Accept: application/json" \
  -H "OData-MaxVersion: 4.0"  \
  -H "OData-Version: 4.0" \
  -d "$select=subject,description,actualstart,activityid,_regardingobjectid_value" \
  -d "$filter=regardingobjectid_incident/incidentid eq c49e62a8-90df-e311-9565-a45d36fc5fe8" \
  -H "Authorization: Bearer DYNAMICS_CRM_ACCESS_TOKEN"

C# Example

Chilkat.Rest rest = new Chilkat.Rest();
bool success;

//  URL: https://my-dynamics-domain.api.crm.dynamics.com/api/data/v9.0/tasks
bool bTls = true;
int port = 443;
bool bAutoReconnect = true;
success = rest.Connect("my-dynamics-domain.api.crm.dynamics.com",port,bTls,bAutoReconnect);
if (success != true) {
    Debug.WriteLine("ConnectFailReason: " + Convert.ToString(rest.ConnectFailReason));
    Debug.WriteLine(rest.LastErrorText);
    return;
}

rest.AddQueryParam("$select","subject,description,actualstart,activityid,_regardingobjectid_value");
rest.AddQueryParam("$filter","regardingobjectid_incident/incidentid eq c49e62a8-90df-e311-9565-a45d36fc5fe8");

rest.AddHeader("OData-MaxVersion","4.0");
rest.AddHeader("Accept","application/json");
rest.AddHeader("OData-Version","4.0");
rest.AddHeader("Authorization","Bearer DYNAMICS_CRM_ACCESS_TOKEN");

Chilkat.StringBuilder sbResponseBody = new Chilkat.StringBuilder();
success = rest.FullRequestNoBodySb("GET","/api/data/v9.0/tasks",sbResponseBody);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

int respStatusCode = rest.ResponseStatusCode;
if (respStatusCode >= 400) {
    Debug.WriteLine("Response Status Code = " + Convert.ToString(respStatusCode));
    Debug.WriteLine("Response Header:");
    Debug.WriteLine(rest.ResponseHeader);
    Debug.WriteLine("Response Body:");
    Debug.WriteLine(sbResponseBody.GetAsString());
    return;
}

Chilkat.JsonObject jsonResponse = new Chilkat.JsonObject();
jsonResponse.LoadSb(sbResponseBody);

int i;
int count_i;

string odataContext = jsonResponse.StringOf("\"@odata.context\"");
i = 0;
count_i = jsonResponse.SizeOfArray("value");
while (i < count_i) {
    jsonResponse.I = i;
    string odataEtag = jsonResponse.StringOf("value[i].\"@odata.etag\"");
    string subject = jsonResponse.StringOf("value[i].subject");
    string description = jsonResponse.StringOf("value[i].description");
    string actualstart = jsonResponse.StringOf("value[i].actualstart");
    string activityid = jsonResponse.StringOf("value[i].activityid");
    string v_regardingobjectid_value = jsonResponse.StringOf("value[i]._regardingobjectid_value");
    i = i + 1;
}

Sample JSON Response Body

{
  "@odata.context": "https://mydomain.api.crm.dynamics.com/api/data/v9.0/$metadata#tasks(subject,description,actualstart,activityid,_regardingobjectid_value)",
  "value": [
    {
      "@odata.etag": "W/\"1173836\"",
      "subject": "Feedback on the product catalog",
      "description": "Defined and captured critical customer requirements for the product catalog. Reviewed the draft content with key players on the committee; recorded attendees. Generated email using the relevant template.",
      "actualstart": null,
      "activityid": "ca81ac0c-91df-e311-b8e5-6c3be5a8b200",
      "_regardingobjectid_value": "c49e62a8-90df-e311-9565-a45d36fc5fe8"
    }
  ]
}