curl "https://api.haau3.com/v1/fhir/r4/CodeSystem/\$lookup?code=2345-7&system=http://loinc.org&property=SHORTNAME" \
  -H "Authorization: Bearer $HAAU3_API_KEY"

import { Haau3 } from "@haau3/sdk";

const haau3 = new Haau3(); // reads HAAU3_API_KEY
const parameters = await haau3.codeSystemLookup({
  code: "2345-7",
  system: "http://loinc.org",
  property: "SHORTNAME",
});
for (const parameter of parameters.parameter ?? []) console.log(parameter.name);

from haau3 import Haau3

client = Haau3()  # reads HAAU3_API_KEY
parameters = client.code_system_lookup(code="2345-7", system="http://loinc.org", property="SHORTNAME")
for parameter in parameters.get("parameter", []):
    print(parameter.get("name"))

package main

import (
	"context"
	"fmt"
	"log"

	"github.com/haau3/haau3-go"
)

func main() {
	ctx := context.Background()
	client, err := haau3.NewClient() // reads HAAU3_API_KEY
	if err != nil {
		log.Fatal(err)
	}
	parameters, err := client.CodeSystemLookup(ctx, haau3.CodeSystemLookupParams{Code: "2345-7", System: new("http://loinc.org"), Property: []string{"SHORTNAME"}})
	if err != nil {
		log.Fatal(err)
	}
	for _, parameter := range parameters.Parameter {
		if parameter.Name != nil {
			fmt.Println(*parameter.Name)
		}
	}
}

{
  "resourceType": "Parameters",
  "parameter": [
    {
      "name": "code",
      "valueCode": "2345-7"
    },
    {
      "name": "system",
      "valueString": "http://loinc.org"
    },
    {
      "name": "name",
      "valueString": "LOINC"
    },
    {
      "name": "version",
      "valueString": "2.83"
    },
    {
      "name": "display",
      "valueString": "Glucose [Mass/volume] in Serum or Plasma"
    },
    {
      "name": "status",
      "valueCode": "active"
    },
    {
      "name": "property",
      "part": [
        {
          "name": "code",
          "valueCode": "SHORTNAME"
        },
        {
          "name": "value",
          "valueString": "Glucose SerPl-mCnc"
        }
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "error",
      "code": "forbidden",
      "details": {
        "coding": [
          {
            "system": "https://haau3.com/fhir/CodeSystem/api-error",
            "code": "test-key-outside-sandbox",
            "display": "Test key outside the Sandbox"
          }
        ],
        "text": "This is a test key, which works only in the Sandbox (https://api.haau3.com/v1/sandbox/fhir/r4). Send this request with a live key; create one in the dashboard. See https://docs.haau3.com/authentication#test-and-live-keys"
      }
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}