GetRESTProxy failing with 400 - PUT to agents/{id}/skills

General Discussion
1

hey all,

so we’ve got a weird one. it’s like trying to push a square peg through a round hole - the api accepts the request structure but throws a fit anyway. basically, we’re attempting to dynamically adjust skill weights for agents based on real-time queue stats, using a studio flow and a getrestproxy action. the idea is, if queue x is overloaded, we bump the weight of skill y for available agents. the flow’s triggered by a data action, and the rest proxy’s configured to update the skills for an agent. it’s a fairly standard setup, we’ve done this with other endpoints without issue. the agent id is pulled from the context, so that’s not it. the payload we’re sending looks like this:

{
 "skillId": "skill_id_here",
 "weight": 0.8
}

where skill_id_here and 0.8 are dynamically populated. the api documentation states the weight needs to be a number between 0 and 1, which it is, so that should be fine. but it’s consistently failing with a 400 bad request. the response body from the getrestproxy is just…sparse. it says “invalid request body” - helpful, right? ugh. we’ve checked the content-type header in the getrestproxy action - it’s set to application/json. tried sending a full object with just the skill id and weight, tried just sending the weight as a string, tried escaping the skill id in case it had some weird character. nothing. the sdk version being used behind the scenes in studio is the one bundled with the platform, so it’s the latest at time of writing.

argh, what’s particularly strange is the same payload works perfectly fine in postman when directed at the same endpoint. it’s like studio is sending something slightly off, or the getrestproxy action is doing something unexpected. i’ve even tried adding a log statement before the getrestproxy action to verify the payload being sent, and it looks correct. it’s a head-scratcher. ffs, we’re on genesys cloud, obviously, and this is in a production environment, impacting our ability to dynamically route traffic.

w.

2
  • Check the Content-Type header - it needs to be application/json.
  • Double-check the skill ID is valid.
  • Here’s a quick httpx example:
import httpx

url = "your_url"
headers = {"Content-Type": "application/json"}
data = {"skillWeight": 0.5}
response = httpx.put(url, headers=headers, json=data)

hope this helps someone

3 Likes
3 
{
 "skillWeight": 0.5
}

The Content-Type check is good - very important. We’ve seen issues where the flow doesn’t correctly pass the header. But also - are you sure the skill is actually enabled for the agent? That’s a common thing. The API doesn’t always tell you why it rejects the PUT, it just gives the 400.

We had similar problem trying to automate skill changes based on queue length. The pacing was all over the place, and it was causing abandonments. We’re on Genesys Cloud, of course. Long story short, it turned out the agent’s skill profiles weren’t updated in real-time. The API update goes through, but the agent’s active skill set doesn’t reflect the change immediately.

Try checking the agent’s skill profile after the PUT to verify it has the new weight. Also, what’s the polling interval in your data action? If it’s too fast, it could be overwhelming the API. YMMV, but we found a 30-second interval is stable. Are you hitting the API rate limits? Check the response headers for X-RateLimit-Remaining.

4

That’s right - the Content-Type is, predictably, the first thing to check. The documentation-and I quote-states “The REST API supports JSON formatted payloads.” Though, honestly, you’d think it’d just return a more helpful error message than a generic 400.

But it’s not just the header. We’ve seen this before - the API expects a specific format when updating agent skills. It’s not a simple skillWeight key. It expects an object within the payload, with a ‘skillProficiency’ key containing the weight.

Here’s the correct JSON structure:

{
 "skillProficiencies": [
 {
 "skillId": "YOUR_SKILL_ID",
 "proficiencyLevel": 0.5 
 }
 ]
}

Replace YOUR_SKILL_ID, obviously. And proficiencyLevel is the equivalent of the skillWeight - don’t try to send both. The ADMIN UI handles this abstraction, naturally. The documentation is frustratingly vague on this, but a successful update requires the skillProficiencies array. It’s a common mistake - the documentation implies direct skillWeight assignment, but the API doesn’t support it.

2 Likes
5

Right, so we hit something similar last quarter - turns out the API is…particular about the payload structure. 1. It doesn’t just want {"skillWeight": 0.5}, it wants a nested object like {"skill": {"skillWeight": 0.5}}. Feels a bit weird, but that’s how it is.

  1. We found the documentation isn’t super clear on this - it just says “skill object”. Took a while to dig through the generated schemas. edit: Also, double-check the skill ID isn’t case-sensitive - that bit got us.