NRS Invoice Gateway
GuidesAPI Reference
Nrs diagnostics

Get NRS Entity

Unbilled direct entity lookup. Gateway validates the v1 success envelope before relaying it.

GET
/api/v1/entity/{entityId}

Authorization

apiKey
x-api-key<token>

The API key generated for your business in Duplo Dashboard. The credential's ipWhitelisted setting is enforced end to end on the customer-facing custom-domain Gateway routes in this public contract. A trusted edge overwrites the configured client-IP header and Gateway carries that verified address over its authenticated internal hop; caller-supplied X-Forwarded-For values are never trusted. An empty IP allowlist permits any source. When an allowlist is configured, a missing, malformed, or nonmatching verified client address is rejected with HTTP 403.

In: header

Path Parameters

entityId*string

NRS entity identifier (1-128 allowlisted identifier characters).

Match^[A-Za-z0-9][A-Za-z0-9._:-]*$
Length1 <= length <= 128

Header Parameters

X-Request-ID?string

Optional caller correlation metadata. Gateway creates a new authoritative request ID, returns it in the response X-Request-ID header and Problem Details requestId, and propagates that generated value to its dependencies.

Match^[A-Za-z0-9][A-Za-z0-9._:-]*$
Length1 <= length <= 128

Response Body

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

curl -X GET "https://example.com/api/v1/entity/string" \  -H "X-Request-ID: erp-run-20260916-0042"
null
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 400,
  "detail": "string",
  "instance": "http://example.com",
  "code": "GW_REQUEST_INVALID_JSON",
  "requestId": "d385ab22-0f51-4b97-9ecd-b8ff3fd4fcb6",
  "timestamp": "2019-08-24T14:15:22Z",
  "action": {
    "code": "string",
    "description": "string",
    "documentation": "http://example.com"
  },
  "retry": {
    "strategy": "DO_NOT_RETRY",
    "sameIdempotencyKey": true,
    "afterSeconds": 0
  },
  "errors": [
    {
      "location": "header",
      "field": "string",
      "pointer": "string",
      "code": "REQUIRED",
      "detail": "string"
    }
  ],
  "operationId": "string",
  "message": "string",
  "statusCode": 0,
  "path": "string"
}

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