README

Newsdata.io PHP Client

The official PHP client for the Newsdata.io REST API. It wraps every endpoint (latest, archive, sources, crypto, market, count, crypto/count, market/count) with client-side parameter validation, automatic retries with exponential backoff, and a typed exception hierarchy.

Requirements

PHP 7.3+ with the curl and json extensions.

Installation

With Composer:

composer require newsdataio/newsdataapi

Without Composer, include the bundled autoloader:

require_once '/path/to/php-client/autoload.php';

Quickstart

use NewsdataIO\NewsdataApi;
use NewsdataIO\Exception\NewsdataException;

$client = new NewsdataApi(NEWSDATA_API_KEY);

try {
    $response = $client->get_latest_news([
        'q'        => 'bitcoin',
        'country'  => ['us', 'gb'],   // string or array of strings
        'language' => 'en',
    ]);

    foreach ($response->results as $article) {
        echo $article->title, PHP_EOL;
    }
} catch (NewsdataException $e) {
    echo 'Request failed: ', $e->getMessage(), PHP_EOL;
}

Pass ['language' => ['en', 'fr']] and the array is sent comma-separated. By default the response is decoded to objects; call $client->setDecodeJsonAsArray(true) to get associative arrays instead.

Endpoints

Each $data value may be a single string or an array of strings. Parameter names are case-insensitive. See the Newsdata.io documentation — or the OpenAPI 3.1 spec — for the full parameter reference per endpoint.

$client->get_market_news(['q' => 'apple', 'symbol' => 'AAPL']);

$client->get_news_count([
    'from_date' => '2024-01-01',
    'to_date'   => '2024-01-31',
    'interval'  => 'day',
]);

Raw query

To pass a query string or full URL verbatim, use raw_query. It is mutually exclusive with every other parameter and is validated against the endpoint's allowed keys:

$client->get_latest_news(['raw_query' => 'q=bitcoin&country=us&language=en']);

Client-side validation

Before any request is sent, parameters are validated and normalized. A NewsdataValidationError is raised (without spending API quota) when:

• a parameter is not accepted by that endpoint;
• mutually-exclusive parameters are set together — q/qInTitle/qInMeta, country/excludecountry, category/excludecategory, language/excludelanguage, domain/domainurl/excludedomain;
• size is outside 1–50;
• sentiment_score is set without sentiment;
• a count endpoint is missing from_date or to_date.

Booleans (full_content, image, video, removeduplicate) are coerced to 1 / 0.

Error handling

use NewsdataIO\Exception\NewsdataValidationError;
use NewsdataIO\Exception\NewsdataAuthError;
use NewsdataIO\Exception\NewsdataRateLimitError;
use NewsdataIO\Exception\NewsdataAPIError;
use NewsdataIO\Exception\NewsdataNetworkError;

try {
    $client->get_latest_news(['q' => 'news']);
} catch (NewsdataValidationError $e) {
    // bad parameter — $e->getParam()
} catch (NewsdataAuthError $e) {
    // 401 / 403
} catch (NewsdataRateLimitError $e) {
    // 429 — $e->getRetryAfter()
} catch (NewsdataAPIError $e) {
    // other API error — $e->getStatusCode(), $e->getResponseBody()
} catch (NewsdataNetworkError $e) {
    // cURL / connectivity failure
}

Hierarchy (all under the NewsdataIO\Exception namespace):

NewsdataException                       (catch-all base)
├── NewsdataValidationError             (getParam())
├── NewsdataAPIError                    (getStatusCode(), getResponseBody())
│   ├── NewsdataAuthError               (401 / 403)
│   ├── NewsdataRateLimitError          (429; getRetryAfter())
│   └── NewsdataServerError             (5xx)
└── NewsdataNetworkError                (cURL / connectivity)

Configuration

$client->setTimeouts($connectSeconds = 10, $totalSeconds = 30);
$client->setRetries($maxAttempts = 5, $backoffBaseSeconds = 2.0);
$client->setRetryBackoffMax($seconds = 60.0);
$client->setDecodeJsonAsArray(true);
$client->setProxy([
    'CURLOPT_PROXY'        => 'proxy.example.com',
    'CURLOPT_PROXYPORT'    => 8080,
    'CURLOPT_PROXYUSERPWD' => 'user:pass',
]);
$client->setLogger($psr3Logger);   // API key is redacted from logged URLs

Retries cover network errors, HTTP 429, and 5xx responses. 429 honors the Retry-After header (integer seconds or HTTP-date); otherwise backoff is exponential (2s → 4s → 8s …, capped). Auth and other 4xx errors are never retried.

Response metadata for the most recent call:

$client->getLastResponse()->getHttpCode();
$client->getLastResponse()->getHeaders();

Development

composer install
composer test        # or: vendor/bin/phpunit

The test suite (tests/) covers the parameter validator and runs entirely offline — no API key required.

Related libraries

Official Newsdata.io clients across languages and runtimes:

• Python — newsdataapi/python-client (PyPI)
• Node.js — newsdataapi/newsdata-nodejs-client (npm)
• React (hooks) — newsdataapi/newsdata-reactjs-client (npm)
• Java — newsdataapi/newsdata-java-sdk (Maven Central)
• .NET — newsdataapi/newsdata-dotnet-sdk (NuGet)
• Go — newsdataapi/newsdata-go-client (pkg.go.dev)
• Dart / Flutter — newsdataapi/newsdata-flutter-client (pub.dev)
• MCP Server (AI assistants) — newsdataapi/newsdata.io-mcp (PyPI)

Also see free news datasets for ML / NLP work.

License

MIT.