Building a C# service to pull conversation aggregates every night. The app runs on an Azure Function, no user interaction. The docs say “For server-to-server communication, use the client credentials flow.” So I’m using PlatformClientFactory.Create() with the API key and secret. It works fine for small queries. But when I try to hit /api/v2/analytics/conversations/details/query with a large date range, I get a 429 Too Many Requests error. The response header says X-RateLimit-Reset: 1234567890. I thought client credentials had higher limits than auth code. Is that wrong? I’ve seen other posts suggesting auth code with a service account, but that seems overkill for a headless job. The .NET SDK doesn’t expose a way to switch grant types easily without re-initializing the client.
Here is the code I’m using:
cvar client = PlatformClientFactory.Create();
client.SetOAuthClientCredentials("key", "secret");
var result = await client.AnalyticsApi.GetAnalyticsConversationsDetailsQuery(...);
The error happens immediately on the second page. Am I stuck with client credentials? If I switch to auth code, how do I handle token refresh in a stateless Azure Function? The docs are vague on the rate limit differences between the two flows. I just need a reliable way to get data without hitting the wall every time the query grows.