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

Descripción general

Casos de uso

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

Funcionalidades

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

Puntos finales de la 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

Parámetros

Nombre	Tipo	Obligatorio	Descripción
data	`string`	Obligatorio	The text or numeric string to encode in the barcode
type	`string`	Obligatorio	Barcode format: code128, code93, code39, ean8, ean13

Pruébalo

Demostración en vivo

Solicitud

data * (string)

The text or numeric string to encode in the barcode

type * (string)

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

Campos de respuesta

Campo	Tipo	Descripción
(binary)	`bytes`	Raw PNG image bytes. Content-Type is image/png.

Ejemplos de código

# 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')

Respuestas de error

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

Parámetros

Nombre	Tipo	Obligatorio	Descripción
data	`string`	Obligatorio	The text or numeric string to encode in the barcode
type	`string`	Obligatorio	Barcode format: code128, code93, code39, ean8, ean13

Pruébalo

Demostración en vivo

Solicitud

data * (string)

The text or numeric string to encode in the barcode

type * (string)

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

Campos de respuesta

Campo	Tipo	Descripción
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

Ejemplos de código

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] + '...'

Respuestas de error

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

Parámetros

Nombre	Tipo	Obligatorio	Descripción
items	`array<object>`	Obligatorio	Array of barcode generation requests. Min: 1, Max: 20.

Pruébalo

Demostración en vivo

Solicitud

items * (array<object>)

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

Campos de respuesta

Campo	Tipo	Descripción
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

Ejemplos de código

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

Respuestas de error

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.

Sin resultados

Sin resultados

Barcode Generator

Descripción general

Casos de uso

Funcionalidades

Puntos finales de la API

Generate Barcode (PNG)

Parámetros

Pruébalo

Solicitud

Respuesta

Error

Campos de respuesta

Ejemplos de código

Respuestas de error

Generate Barcode (Base64 JSON)

Parámetros

Pruébalo

Solicitud

Respuesta

Error

Campos de respuesta

Ejemplos de código

Respuestas de error

Generate Barcodes (Batch)

Parámetros

Pruébalo

Solicitud

Respuesta

Error

Campos de respuesta

Ejemplos de código

Respuestas de error

Preguntas frecuentes