Barcode Generator

Generate barcodes in multiple industry-standard formats. Returns a raw PNG image or base64-encoded JSON, supporting Code 128, Code 93, Code 39, EAN-8, and EAN-13.

Get API Key

Vue d'ensemble

Cas d'utilisation

Product labeling and inventory management
Retail point-of-sale systems
Shipping and logistics labels
Library and asset tracking systems
Event ticketing and check-in workflows

Fonctionnalités

Five barcode formats (Code 128, Code 93, Code 39, EAN-8, EAN-13)

Dedicated endpoints for raw PNG and base64-encoded JSON

EAN types validate input length and digit-only content before encoding

Fixed 300×100 px output suitable for standard label widths

Points de terminaison de l'API

Generate Barcode (PNG)

Returns a raw PNG image of the barcode. Ideal for direct embedding or file download.

GET

https://requiems.xyz/v1/technology/barcode

Paramètres

Nom	Type	Requis	Description
data	`string`	Requis	The text or numeric string to encode in the barcode
type	`string`	Requis	Barcode format: code128, code93, code39, ean8, ean13

Essayez-le

Démo en direct

Requête

data * (string)

The text or numeric string to encode in the barcode

type * (string)

Barcode format: code128, code93, code39, ean8, ean13

Champs de réponse

Champ	Type	Description
(binary)	`bytes`	Raw PNG image bytes. Content-Type is image/png.

Exemples de code

# Save a Code 128 barcode as PNG
curl "https://requiems.xyz/v1/technology/barcode?data=123456789&type=code128" \
  -H "requiems-api-key: YOUR_API_KEY" \
  --output barcode.png

# Save an EAN-13 barcode (12 digits, checksum auto-calculated)
curl "https://requiems.xyz/v1/technology/barcode?data=123456789012&type=ean13" \
  -H "requiems-api-key: YOUR_API_KEY" \
  --output barcode.png

import requests

url = "https://requiems.xyz/v1/technology/barcode"
headers = {"requiems-api-key": "YOUR_API_KEY"}
params = {"data": "123456789", "type": "code128"}

response = requests.get(url, headers=headers, params=params)
with open("barcode.png", "wb") as f:
    f.write(response.content)

const params = new URLSearchParams({
  data: '123456789',
  type: 'code128'
});

const response = await fetch(
  `https://requiems.xyz/v1/technology/barcode?${params}`,
  { headers: { 'requiems-api-key': 'YOUR_API_KEY' } }
);
const blob = await response.blob();
const imgUrl = URL.createObjectURL(blob);

require 'net/http'

uri = URI('https://requiems.xyz/v1/technology/barcode')
uri.query = URI.encode_www_form(data: '123456789', type: 'code128')

request = Net::HTTP::Get.new(uri)
request['requiems-api-key'] = 'YOUR_API_KEY'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end
File.write('barcode.png', response.body, mode: 'wb')

Réponses d'erreur

400

bad_request

Missing or invalid parameters (e.g. data not provided, unsupported type)

422

unprocessable_entity

Data is invalid for the chosen barcode type (e.g. wrong digit count for EAN-8/EAN-13, non-numeric EAN data)

Generate Barcode (Base64 JSON)

Returns a JSON envelope containing the barcode as a base64-encoded PNG string, along with its type and dimensions.

GET

https://requiems.xyz/v1/technology/barcode/base64

Paramètres

Nom	Type	Requis	Description
data	`string`	Requis	The text or numeric string to encode in the barcode
type	`string`	Requis	Barcode format: code128, code93, code39, ean8, ean13

Essayez-le

Démo en direct

Requête

data * (string)

The text or numeric string to encode in the barcode

type * (string)

Barcode format: code128, code93, code39, ean8, ean13

Champs de réponse

Champ	Type	Description
image	`string`	Base64-encoded PNG image data
type	`string`	The barcode format that was used
width	`integer`	Width of the generated image in pixels
height	`integer`	Height of the generated image in pixels

Exemples de code

curl "https://requiems.xyz/v1/technology/barcode/base64?data=123456789&type=code128" \
  -H "requiems-api-key: YOUR_API_KEY"

import requests

url = "https://requiems.xyz/v1/technology/barcode/base64"
headers = {"requiems-api-key": "YOUR_API_KEY"}
params = {"data": "123456789", "type": "code128"}

response = requests.get(url, headers=headers, params=params)
result = response.json()["data"]
print(f"Image (base64): {result['image'][:40]}...")

const params = new URLSearchParams({
  data: '123456789',
  type: 'code128'
});

const response = await fetch(
  `https://requiems.xyz/v1/technology/barcode/base64?${params}`,
  { headers: { 'requiems-api-key': 'YOUR_API_KEY' } }
);
const { data } = await response.json();
// Use as an <img> src
document.getElementById('barcode').src = `data:image/png;base64,${data.image}`;

require 'net/http'
require 'json'

uri = URI('https://requiems.xyz/v1/technology/barcode/base64')
uri.query = URI.encode_www_form(data: '123456789', type: 'code128')

request = Net::HTTP::Get.new(uri)
request['requiems-api-key'] = 'YOUR_API_KEY'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end
data = JSON.parse(response.body)['data']
puts data['image'][0..39] + '...'

Réponses d'erreur

400

bad_request

Missing or invalid parameters (e.g. data not provided, unsupported type)

422

unprocessable_entity

Data is invalid for the chosen barcode type (e.g. wrong digit count for EAN-8/EAN-13, non-numeric EAN data)

Generate Barcodes (Batch)

Generate up to 20 barcodes in a single request. Each barcode is processed independently and results are returned in the same order as the input. Invalid items do not fail the entire request.

POST

https://requiems.xyz/v1/technology/barcode/batch

Paramètres

Nom	Type	Requis	Description
items	`array<object>`	Requis	Array of barcode generation requests. Min: 1, Max: 20.

Essayez-le

Démo en direct

Requête

items * (array<object>)

Array of barcode generation requests. Min: 1, Max: 20.

Champs de réponse

Champ	Type	Description
results	`array<object>`	List of barcode generation results preserving input order
results[].image	`string`	Base64-encoded PNG image
results[].type	`string`	Barcode format used
results[].width	`integer`	Image width in pixels
results[].height	`integer`	Image height in pixels
results[].success	`boolean`	Whether barcode generation succeeded
results[].error	`string`	Error message when generation fails
total	`integer`	Number of items processed

Exemples de code

curl -X POST https://requiems.xyz/v1/technology/barcode/batch \
  -H "requiems-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "items": [
      {
        "data": "123456789",
        "type": "code128"
      },
      {
        "data": "HELLO",
        "type": "code93"
      }
    ]
  }'

import requests

url = "https://requiems.xyz/v1/technology/barcode/batch"

response = requests.post(
    url,
    headers={
        "requiems-api-key": "YOUR_API_KEY",
        "Content-Type": "application/json"
    },
    json={
        "items": [
            {
                "data": "123456789",
                "type": "code128"
            },
            {
                "data": "HELLO",
                "type": "code93"
            }
        ]
    }
)

print(response.json())

const response = await fetch(
  'https://requiems.xyz/v1/technology/barcode/batch',
  {
    method: 'POST',
    headers: {
      'requiems-api-key': 'YOUR_API_KEY',
      'Content-Type': 'application/json'
    },
    body: JSON.stringify({
      items: [
        {
          data: '123456789',
          type: 'code128'
        },
        {
          data: 'HELLO',
          type: 'code93'
        }
      ]
    })
  }
);

const { data } = await response.json();
console.log(data.results);

require 'net/http'
require 'json'

uri = URI('https://requiems.xyz/v1/technology/barcode/batch')

request = Net::HTTP::Post.new(uri)
request['requiems-api-key'] = 'YOUR_API_KEY'
request['Content-Type'] = 'application/json'

request.body = {
  items: [
    {
      data: '123456789',
      type: 'code128'
    },
    {
      data: 'HELLO',
      type: 'code93'
    }
  ]
}.to_json

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts response.body

Réponses d'erreur

validation_failed

Valid request body that fails validation (empty items array, more than 20 items, missing data field, or unsupported barcode type).

bad_request

Invalid JSON or malformed request body.

internal_error

Unexpected server error.

Aucun résultat

Aucun résultat

Barcode Generator

Vue d'ensemble

Cas d'utilisation

Fonctionnalités

Points de terminaison de l'API

Generate Barcode (PNG)

Paramètres

Essayez-le

Requête

Réponse

Erreur

Champs de réponse

Exemples de code

Réponses d'erreur

Generate Barcode (Base64 JSON)

Paramètres

Essayez-le

Requête

Réponse

Erreur

Champs de réponse

Exemples de code

Réponses d'erreur

Generate Barcodes (Batch)

Paramètres

Essayez-le

Requête

Réponse

Erreur

Champs de réponse

Exemples de code

Réponses d'erreur

Foire aux questions