curl --request GET \
  --url https://api.example.com/v1/invoices/upcoming \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.example.com/v1/invoices/upcoming"

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

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

print(response.text)

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

fetch('https://api.example.com/v1/invoices/upcoming', 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://api.example.com/v1/invoices/upcoming",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($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://api.example.com/v1/invoices/upcoming"

	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))

}

HttpResponse<String> response = Unirest.get("https://api.example.com/v1/invoices/upcoming")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/v1/invoices/upcoming")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "id": "invc_1Q2w3E4r",
  "object": "invoice",
  "livemode": true,
  "created": 123,
  "kind": "transport",
  "status": "draft",
  "currency": "<string>",
  "lines": [
    {
      "kind": "transport",
      "amount": {
        "amount": 123,
        "currency": "usd"
      },
      "id": "<string>",
      "shipment": "<string>",
      "tracking_number": "<string>",
      "service": "<string>",
      "description": "<string>",
      "charge_kind": "<string>",
      "reason": "dimensional_reweigh",
      "billed_weight": {
        "value": 123,
        "unit": "g"
      },
      "zone": "<string>",
      "declared": {},
      "audited": {},
      "meter": "<string>",
      "quantity": 123,
      "unit_amount": 123,
      "tax": {
        "amount": 123,
        "currency": "usd"
      },
      "external_ref": "<string>"
    }
  ],
  "totals": {
    "subtotal": {
      "amount": 123,
      "currency": "usd"
    },
    "tax": {
      "amount": 123,
      "currency": "usd"
    },
    "total": {
      "amount": 123,
      "currency": "usd"
    },
    "paid": {
      "amount": 123,
      "currency": "usd"
    },
    "due": {
      "amount": 123,
      "currency": "usd"
    }
  },
  "updated": 123,
  "direction": "payable",
  "issuer": {
    "account": "<string>",
    "integration": "<string>",
    "connection": "<string>",
    "name": "<string>",
    "tax_ids": [
      {
        "type": "eori",
        "value": "<string>",
        "country": "<string>"
      }
    ]
  },
  "recipient": {
    "account": "<string>",
    "integration": "<string>",
    "connection": "<string>",
    "name": "<string>",
    "tax_ids": [
      {
        "type": "eori",
        "value": "<string>",
        "country": "<string>"
      }
    ]
  },
  "number": "<string>",
  "issued_on": "2023-12-25",
  "due_on": "2023-12-25",
  "period": {
    "from": "2023-12-25",
    "to": "2023-12-25"
  },
  "reconciliation": {
    "id": "<string>",
    "status": "<string>",
    "matched": 123,
    "mismatched": 123,
    "unknown": 123,
    "disputed_amount": {
      "amount": 123,
      "currency": "usd"
    }
  },
  "source": {
    "type": "issued",
    "format": "<string>",
    "file": "<string>",
    "job": "<string>"
  },
  "documents": [
    {
      "id": "<string>",
      "object": "document",
      "type": "label",
      "format": "pdf",
      "size": "<string>",
      "url": "<string>",
      "url_expires_at": 123,
      "data": "<string>",
      "handling_unit": "<string>",
      "bundle": [
        "<string>"
      ],
      "template": "<string>",
      "template_version": 123,
      "related": {
        "type": "<string>",
        "id": "<string>"
      },
      "file": "<string>",
      "sha256": "<string>"
    }
  ],
  "payments": [
    "<string>"
  ],
  "external_ids": [
    {
      "source": "<string>",
      "id": "<string>"
    }
  ],
  "user_metadata": {},
  "carrier_metadata": {},
  "system_metadata": {
    "source": "api",
    "created_by": {
      "type": "api_key",
      "id": "<string>"
    },
    "request_id": "<string>",
    "idempotency_key": "<string>",
    "batch": "<string>",
    "generated": true,
    "test_scenario": "<string>"
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "<string>",
    "message": "<string>",
    "param": "<string>",
    "doc_url": "<string>",
    "request_id": "<string>",
    "carrier": {
      "id": "<string>",
      "connection": "<string>",
      "code": "<string>",
      "message": "<string>"
    },
    "shipment": "<string>",
    "details": [
      {
        "code": "<string>",
        "message": "<string>",
        "param": "<string>"
      }
    ]
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "<string>",
    "message": "<string>",
    "param": "<string>",
    "doc_url": "<string>",
    "request_id": "<string>",
    "carrier": {
      "id": "<string>",
      "connection": "<string>",
      "code": "<string>",
      "message": "<string>"
    },
    "shipment": "<string>",
    "details": [
      {
        "code": "<string>",
        "message": "<string>",
        "param": "<string>"
      }
    ]
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "<string>",
    "message": "<string>",
    "param": "<string>",
    "doc_url": "<string>",
    "request_id": "<string>",
    "carrier": {
      "id": "<string>",
      "connection": "<string>",
      "code": "<string>",
      "message": "<string>"
    },
    "shipment": "<string>",
    "details": [
      {
        "code": "<string>",
        "message": "<string>",
        "param": "<string>"
      }
    ]
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "<string>",
    "message": "<string>",
    "param": "<string>",
    "doc_url": "<string>",
    "request_id": "<string>",
    "carrier": {
      "id": "<string>",
      "connection": "<string>",
      "code": "<string>",
      "message": "<string>"
    },
    "shipment": "<string>",
    "details": [
      {
        "code": "<string>",
        "message": "<string>",
        "param": "<string>"
      }
    ]
  }
}