curl --request GET \
  --url https://api.example.com/v1/contracts/{producer}/{namespace}/{type}/{schemaVersion} \
  --header 'Authorization: Bearer <token>'

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.example.com/v1/contracts/{producer}/{namespace}/{type}/{schemaVersion}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.example.com/v1/contracts/{producer}/{namespace}/{type}/{schemaVersion}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.example.com/v1/contracts/{producer}/{namespace}/{type}/{schemaVersion}"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

{
  "producer": "checkout-api",
  "namespace": "acme.checkout",
  "type": "checkout.order_placed",
  "schemaVersion": "1.0.0",
  "team": "checkout-squad",
  "schema": {
    "$id": "urn:acme:checkout:checkout.order_placed:1.0.0",
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "title": "Order placed",
    "type": "object",
    "additionalProperties": false,
    "required": [
      "amount",
      "currency",
      "customerDocument"
    ],
    "properties": {
      "amount": {
        "type": "string",
        "pattern": "^(0|[1-9][0-9]*)\\.[0-9]{2}$"
      },
      "currency": {
        "type": "string",
        "pattern": "^[A-Z]{3}$"
      },
      "customerDocument": {
        "type": "string",
        "x-sensitivity": "masked",
        "x-mask": "document"
      }
    },
    "$defs": {
      "decimalAmount": {
        "type": "string",
        "pattern": "^(0|[1-9][0-9]*)\\.[0-9]{2}$"
      }
    }
  },
  "references": [
    {
      "type": "acme.order_id",
      "cardinality": "one",
      "required": true,
      "correlation": "exact",
      "scope": [
        "storeId"
      ],
      "sensitivity": "none"
    },
    {
      "type": "acme.customer_document",
      "cardinality": "zero_or_one",
      "required": false,
      "correlation": "none",
      "scope": [],
      "sensitivity": "masked",
      "mask": "document"
    }
  ],
  "compatibilityPolicy": "TRANSITIVE",
  "hash": "sha256:eb6a1bb7bc5d2d9315dd133af563678ec0dab58488b23fcb0179ee54ea43c34c",
  "status": "ACTIVE",
  "createdAt": "2026-10-19T12:00:00Z"
}

{
  "code": "<string>",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "0199c1f07a3e7b219d443c1f8e2a9b01",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example",
  "upstream": {
    "code": "E4001",
    "message": "account not found at provider"
  }
}

{
  "code": "<string>",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "0199c1f07a3e7b219d443c1f8e2a9b01",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example",
  "upstream": {
    "code": "E4001",
    "message": "account not found at provider"
  }
}

{
  "code": "SF-0017",
  "detail": "Verify the four path segments, and register the version from your deploy pipeline if it is missing.",
  "instance": "0199c1f07a3e7b219d443c1f8e2a9b01",
  "status": 404,
  "title": "Not Found",
  "type": "https://errors.lerian.studio/v1/SF-0017"
}

{
  "code": "<string>",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "0199c1f07a3e7b219d443c1f8e2a9b01",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example",
  "upstream": {
    "code": "E4001",
    "message": "account not found at provider"
  }
}

{
  "code": "<string>",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "0199c1f07a3e7b219d443c1f8e2a9b01",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example",
  "upstream": {
    "code": "E4001",
    "message": "account not found at provider"
  }
}

{
  "code": "<string>",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "0199c1f07a3e7b219d443c1f8e2a9b01",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example",
  "upstream": {
    "code": "E4001",
    "message": "account not found at provider"
  }
}