Step by Step Guide to Building a Docparser API Integration in PHP

Introduction

Hey there, fellow code wrangler! Ready to supercharge your document parsing game? Let's dive into the world of Docparser API integration with PHP. This nifty tool will help you extract structured data from documents like a pro. We'll walk through the process, keeping things snappy and to the point.

Prerequisites

Before we jump in, make sure you've got:

• A PHP environment that's locked and loaded
• A Docparser account with an API key in hand
• cURL installed (we'll be using it to make our API requests)

Got all that? Great! Let's roll up our sleeves and get coding.

Setting up the Project

First things first, let's create a new PHP file. You can call it docparser_integration.php or whatever tickles your fancy. Now, let's include the necessary libraries:

<?php
// Include any required libraries here

Authentication

Alright, time to get cozy with the Docparser API. We'll use your API key for authentication. Here's how:

$api_key = 'YOUR_API_KEY_HERE';
$headers = [
    'Authorization: Basic ' . base64_encode($api_key . ':'),
    'Content-Type: application/json'
];

Making API Requests

Now for the fun part - let's make some API requests! We'll start with a GET request to fetch your parser list:

function getParserList($headers) {
    $ch = curl_init('https://api.docparser.com/v1/parsers');
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($ch);
    curl_close($ch);
    return json_decode($response, true);
}

$parsers = getParserList($headers);

And here's a POST request to upload a document:

function uploadDocument($headers, $parser_id, $file_path) {
    $ch = curl_init("https://api.docparser.com/v1/document/upload/{$parser_id}");
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, ['file' => new CURLFile($file_path)]);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($ch);
    curl_close($ch);
    return json_decode($response, true);
}

$upload_result = uploadDocument($headers, 'YOUR_PARSER_ID', 'path/to/your/document.pdf');

Handling API Responses

The API will send back JSON responses. We're already decoding them in our functions, but let's add some error handling:

function handleApiResponse($response) {
    if (isset($response['error'])) {
        throw new Exception("API Error: " . $response['error']);
    }
    return $response;
}

try {
    $parsers = handleApiResponse(getParserList($headers));
    $upload_result = handleApiResponse(uploadDocument($headers, 'YOUR_PARSER_ID', 'path/to/your/document.pdf'));
} catch (Exception $e) {
    echo "Oops! " . $e->getMessage();
}

Implementing Key Docparser Features

Now that we've got the basics down, let's implement some key features. Here's how to retrieve parsed data:

function getParseResults($headers, $document_id) {
    $ch = curl_init("https://api.docparser.com/v1/results/{$document_id}");
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($ch);
    curl_close($ch);
    return json_decode($response, true);
}

$parse_results = handleApiResponse(getParseResults($headers, $upload_result['id']));

Optimizing the Integration

To keep things running smoothly, respect rate limits and consider implementing caching:

function getRateLimitInfo($headers) {
    $ch = curl_init('https://api.docparser.com/v1/ping');
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($ch);
    $rate_limit = curl_getinfo($ch, CURLINFO_HEADER_OUT);
    curl_close($ch);
    return $rate_limit;
}

$rate_limit_info = getRateLimitInfo($headers);
// Use this info to manage your request frequency

Testing the Integration

Don't forget to test your integration! Here's a simple example:

function testParserList($headers) {
    $parsers = getParserList($headers);
    assert(is_array($parsers), "Parser list should be an array");
    assert(!empty($parsers), "Parser list should not be empty");
    echo "Parser list test passed!\n";
}

testParserList($headers);

Conclusion

And there you have it! You've just built a Docparser API integration in PHP. Pretty cool, right? Remember, this is just the beginning. There's a whole world of document parsing possibilities out there. Keep experimenting, keep coding, and most importantly, keep having fun!

For more advanced features and detailed documentation, check out the Docparser API docs. Now go forth and parse those documents like a boss!