How can I integrate AWS Bedrock agents with n8n's HTTP Request Node?

I’m trying to connect n8n with my AWS Bedrock agent via the HTTP Request Node, but all my attempts are failing. I noticed an open pull request on GitHub regarding the addition of Bedrock endpoints to AWS credentials (
https://github.com/n8n-io/n8n/pull/12254/commits/9f76c511303ade88dcfa7c8151e9e953b35639ea
), and I’m wondering if this feature will be merged soon.

Below is my current workflow configuration:

JSONCopied
{
  "nodes": [
    {
      "parameters": {
        "method": "POST",
        "url": "https://bedrock-runtime.us-east-1.amazonaws.com/agents/My Agent ID/agentAliases/My Alias ID /sessions/test-123/text",
        "authentication": "predefinedCredentialType",
        "nodeCredentialType": "aws",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "x-amz-source-arn",
              "value": "arn:aws:bedrock:us-east-1: My Account AWS :agent/My Agent ID"
            },
            {
              "name": "Content-type",
              "value": "application/json"
            },
            {
              "name": "Accept",
              "value": "application/json"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "{\n   \"bedrockModelConfigurations\": { \n      \"performanceConfig\": { \n         \"latency\": \"low\"\n      }\n   }, \"inputText\": \"hello\",\n      \"enableTrace\": false\n}\n        ",
        "options": {}
      },
      "id": "ff826af3-4f23-45b2-b6de-01268338fc8a",
      "name": "HTTP Request",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        440,
        620
      ],
      "credentials": {
        "aws": {
          "id": "nYgvZQglCR1bb43t",
          "name": "AWS account"
        }
      }
    },
    {
      "parameters": {
        "options": {}
      },
      "id": "cc6f7c97-2c6d-4101-a6a9-e52a3266058d",
      "name": "When chat message received",
      "type": "@n8n/n8n-nodes-langchain.chatTrigger",
      "typeVersion": 1.1,
      "position": [
        300,
        620
      ],
      "webhookId": "ed3255c9-0a2e-453b-b5a3-63a7523f0fc1"
    }
  ],
  "connections": {
    "When chat message received": {
      "main": [
        [
          {
            "node": "HTTP Request",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "pinData": {},
  "meta": {
    "templateCredsSetupCompleted": true,
    "instanceId": "e9f479d62d24d1c64104a9780568d1a81cc09798d56e8590a320e6fedabd0c09"
  }
}

The output from the last node is as follows:

{ “Output”: { “__type”: “com.amazon.coral.service#UnknownOperationException” }, “Version”: “1.0” }

Additional setup details:

• n8n version: latest
• Database (default: SQLite): Postgres
• n8n EXECUTIONS_PROCESS setting: my own
• Running n8n via: Docker
• Operating system: Linux

Any help resolving this issue or further information on when the AWS Bedrock integration might be available is appreciated.