curl --request GET \
--url https://www.closient.com/resolver/api/v1/link-type-service-relations/{service_relation_id}/barcode \
--header 'X-API-Key: <api-key>'import requests
url = "https://www.closient.com/resolver/api/v1/link-type-service-relations/{service_relation_id}/barcode"
headers = {"X-API-Key": "<api-key>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {'X-API-Key': '<api-key>'}};
fetch('https://www.closient.com/resolver/api/v1/link-type-service-relations/{service_relation_id}/barcode', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://www.closient.com/resolver/api/v1/link-type-service-relations/{service_relation_id}/barcode",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"X-API-Key: <api-key>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://www.closient.com/resolver/api/v1/link-type-service-relations/{service_relation_id}/barcode"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("X-API-Key", "<api-key>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://www.closient.com/resolver/api/v1/link-type-service-relations/{service_relation_id}/barcode")
.header("X-API-Key", "<api-key>")
.asString();require 'uri'
require 'net/http'
url = URI("https://www.closient.com/resolver/api/v1/link-type-service-relations/{service_relation_id}/barcode")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["X-API-Key"] = '<api-key>'
response = http.request(request)
puts response.read_body<string>{
"detail": "The requested resource was not found.",
"error_code": "not_found",
"retryable": false,
"status": 404,
"timestamp": "2026-03-31T12:00:00+00:00",
"title": "Not Found",
"type": "https://closient.com/docs/errors/not_found"
}{
"detail": "The requested resource was not found.",
"error_code": "not_found",
"retryable": false,
"status": 404,
"timestamp": "2026-03-31T12:00:00+00:00",
"title": "Not Found",
"type": "https://closient.com/docs/errors/not_found"
}{
"detail": "The requested resource was not found.",
"error_code": "not_found",
"retryable": false,
"status": 404,
"timestamp": "2026-03-31T12:00:00+00:00",
"title": "Not Found",
"type": "https://closient.com/docs/errors/not_found"
}{
"detail": "The requested resource was not found.",
"error_code": "not_found",
"retryable": false,
"status": 404,
"timestamp": "2026-03-31T12:00:00+00:00",
"title": "Not Found",
"type": "https://closient.com/docs/errors/not_found"
}{
"detail": "The requested resource was not found.",
"error_code": "not_found",
"retryable": false,
"status": 404,
"timestamp": "2026-03-31T12:00:00+00:00",
"title": "Not Found",
"type": "https://closient.com/docs/errors/not_found"
}{
"detail": "The requested resource was not found.",
"error_code": "not_found",
"retryable": false,
"status": 404,
"timestamp": "2026-03-31T12:00:00+00:00",
"title": "Not Found",
"type": "https://closient.com/docs/errors/not_found"
}{
"detail": "The requested resource was not found.",
"error_code": "not_found",
"retryable": false,
"status": 404,
"timestamp": "2026-03-31T12:00:00+00:00",
"title": "Not Found",
"type": "https://closient.com/docs/errors/not_found"
}Render a GS1 service relation's barcode
Render the barcode for one stored GS1 service relation. Encodes the stored GSRN under the AI its relation type names: 8017 for a provider, 8018 for a recipient. Nothing is encoded that the record does not hold; a GS1 service relation that does not exist, or that the caller’s organization does not own, is a 404.
Symbologies: qr, datamatrix, gs1_128 (default gs1_128). A symbology, format or option the route cannot use is a 422 naming the ones it can; x-closient-symbology-formats lists each symbology’s formats.
Caching: Cache-Control: private, no-cache with a strong ETag over the bytes, so an edit to an encoded field changes the ETag and If-None-Match revalidates. PDF output embeds a creation time, so its ETag changes on every render.
curl --request GET \
--url https://www.closient.com/resolver/api/v1/link-type-service-relations/{service_relation_id}/barcode \
--header 'X-API-Key: <api-key>'import requests
url = "https://www.closient.com/resolver/api/v1/link-type-service-relations/{service_relation_id}/barcode"
headers = {"X-API-Key": "<api-key>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {'X-API-Key': '<api-key>'}};
fetch('https://www.closient.com/resolver/api/v1/link-type-service-relations/{service_relation_id}/barcode', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://www.closient.com/resolver/api/v1/link-type-service-relations/{service_relation_id}/barcode",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"X-API-Key: <api-key>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://www.closient.com/resolver/api/v1/link-type-service-relations/{service_relation_id}/barcode"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("X-API-Key", "<api-key>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://www.closient.com/resolver/api/v1/link-type-service-relations/{service_relation_id}/barcode")
.header("X-API-Key", "<api-key>")
.asString();require 'uri'
require 'net/http'
url = URI("https://www.closient.com/resolver/api/v1/link-type-service-relations/{service_relation_id}/barcode")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["X-API-Key"] = '<api-key>'
response = http.request(request)
puts response.read_body<string>{
"detail": "The requested resource was not found.",
"error_code": "not_found",
"retryable": false,
"status": 404,
"timestamp": "2026-03-31T12:00:00+00:00",
"title": "Not Found",
"type": "https://closient.com/docs/errors/not_found"
}{
"detail": "The requested resource was not found.",
"error_code": "not_found",
"retryable": false,
"status": 404,
"timestamp": "2026-03-31T12:00:00+00:00",
"title": "Not Found",
"type": "https://closient.com/docs/errors/not_found"
}{
"detail": "The requested resource was not found.",
"error_code": "not_found",
"retryable": false,
"status": 404,
"timestamp": "2026-03-31T12:00:00+00:00",
"title": "Not Found",
"type": "https://closient.com/docs/errors/not_found"
}{
"detail": "The requested resource was not found.",
"error_code": "not_found",
"retryable": false,
"status": 404,
"timestamp": "2026-03-31T12:00:00+00:00",
"title": "Not Found",
"type": "https://closient.com/docs/errors/not_found"
}{
"detail": "The requested resource was not found.",
"error_code": "not_found",
"retryable": false,
"status": 404,
"timestamp": "2026-03-31T12:00:00+00:00",
"title": "Not Found",
"type": "https://closient.com/docs/errors/not_found"
}{
"detail": "The requested resource was not found.",
"error_code": "not_found",
"retryable": false,
"status": 404,
"timestamp": "2026-03-31T12:00:00+00:00",
"title": "Not Found",
"type": "https://closient.com/docs/errors/not_found"
}{
"detail": "The requested resource was not found.",
"error_code": "not_found",
"retryable": false,
"status": 404,
"timestamp": "2026-03-31T12:00:00+00:00",
"title": "Not Found",
"type": "https://closient.com/docs/errors/not_found"
}Authorizations
Path Parameters
ID of the service relation.
22^[23456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]{22}$Query Parameters
Image format. Which formats a symbology writes is published as x-closient-symbology-formats; qr also writes tif, datamatrix writes svg, png and pdf, the linear symbologies svg, png, pdf and eps.
svg, png, pdf, eps, tif "svg"
QR only: side length in pixels, or SVG/PDF/EPS user units, when xdim_mm is not set. Default 400.
50 <= x <= 2000X-dimension (narrowest module) in millimetres. QR: sizes the symbol physically. Linear symbologies: the bar module width, default 0.33. DataMatrix: only with composed HRI. Composed HRI on qr or datamatrix requires it.
0.1 <= x <= 10PNG resolution, 300 or 600. QR: only with xdim_mm. DataMatrix: always. Linear symbologies: only with composed HRI. Default 300.
300 <= x <= 600Must be a multiple of 300Linear symbologies only: bar height in millimetres, for the bare symbol. Default 25.
1 <= x <= 100QR with format=eps only: CMYK process colours instead of RGB, for the bare symbol.
Name of a saved HRI preset to compose human-readable text around the symbol (qr, datamatrix, gs1_128, gs1_databar_expanded). Without it the organization's default preset applies when the request can take it: xdim_mm set (or a linear symbology), a format other than tif, and none of size, cmyk or bar_height_mm.
128^[^\x00]{0,}$Symbology.
qr, datamatrix, gs1_128 "qr"
Response
OK
The response is of type file.