{"id":672,"date":"2024-05-28T10:35:12","date_gmt":"2024-05-28T10:35:12","guid":{"rendered":"https:\/\/nownodes.io\/blog\/?p=672"},"modified":"2024-05-28T10:35:14","modified_gmt":"2024-05-28T10:35:14","slug":"difference-between-http-get-and-post-api-methods","status":"publish","type":"post","link":"https:\/\/nownodes.io\/blog\/difference-between-http-get-and-post-api-methods\/","title":{"rendered":"Difference Between HTTP GET and POST API Methods?"},"content":{"rendered":"\n

When interacting with a blockchain\u2019s Remote Procedure Call (RPC) node, understanding the differences between HTTP GET and POST API methods is crucial. These methods serve as communication techniques to retrieve or send information to the RPC node. <\/p>\n\n\n\n

In this article, we will learn the fundamental differences between these API call methods, explore GET and POST request examples, and send API requests with NOWNodes. <\/p>\n\n\n\n

Let\u2019s begin with understanding the differences between HTTP POST and GET methods.<\/p>\n\n\n\n

Table of Contents<\/div>
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    Understanding the Differences Between GET and POST<\/strong><\/h2>\n\n\n

    Interacting with a blockchain\u2019s RPC node requires a keen understanding of the differences between HTTP POST and GET methods. The API GET method is primarily used for retrieving data, while the API POST method is used for sending data to the server. <\/p>\n\n\n\n

    The API GET method, usually for data retrieval, fetches details from a blockchain node, like transaction status or block specifics, by embedding parameters in the URL. This makes GET transparent but exposes it in logs and limits data length. Crucially, repeated GET requests won\u2019t change the blockchain\u2019s state due to its idempotent nature.<\/p>\n\n\n\n

    Conversely, the POST method submits data, commonly used in blockchain nodes to securely relay commands. Data is stored in the request\u2019s body, accommodating larger payloads without exposing parameters in the URL. Unlike GET, POST might change the system\u2019s state with varying outcomes for identical requests.<\/p>\n\n\n\n

    In blockchain RPCs, choosing the right method is crucial: GET for safe data access, and POST for operations altering the blockchain or involving sensitive, extensive data, ensuring secure and efficient blockchain interactions.<\/p>\n\n\n

    Detailed review of GET and POST methods<\/strong><\/h3>\n\n\n

    Both GET and POST API methods have their advantages and disadvantages, and understanding them is important for making informed decisions when developing dApps.<\/p>\n\n\n\n

    <\/td>GET Method<\/strong><\/td>POST Method<\/strong><\/td><\/tr>
    Pros<\/strong><\/td>1. Seamless sharing and bookmarking of URLs. 
    2. Transparency aids in easier debugging due to visible parameters. 
    3. Consistent outcomes with repeated requests due to its idempotent nature.<\/td>    		1. Data is housed in the body, offering better privacy. 
    2. Can handle larger datasets without the constraints of URL length.
    3. Versatile in handling intricate operations including binary data dispatch.<\/td><\/tr>
    Cons<\/strong><\/td>1. Data visibility in the URL may expose sensitive information. 
    2. Restricts the volume of data sent due to URL length constraints.
    3. Not suitable for complex operations needing extensive data.<\/td>    		1. Requires more preliminary setup, adding complexity. 
    2. Non-idempotent nature can lead to varying outcomes with repeated requests.
    3. Repeated requests could potentially trigger unintended operations.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \n

    The complexity<\/strong> of sending POST API calls is higher<\/strong> compared to GET calls. Testing and debugging POST requests often require specialized tools like Postman or cURL. <\/p>\n<\/blockquote>\n\n\n\n

    The choice between different API methods depends on the specific use case, security considerations, and the amount of data to be transferred.<\/p>\n\n\n\n

    To make the process of making GET and POST API calls easier, NOWNodes, the node-as-a-service platform, offers simple instruments and tools to connect to full RPC nodes such as\u00a0Polygon full node<\/a>,\u00a0Solana full node<\/a>,\u00a0Fantom full node<\/a>,\u00a0BSC full node<\/a>,\u00a0TRON full node<\/a>, etc. and send API requests.\u00a0<\/p>\n\n\n\n

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    Utilizing Different API Methods<\/strong><\/h3>\n\n\n

    Now that you understand the differences between HTTP POST and GET methods, we are going to send API requests. For this point, it\u2019s important to get access to a full RPC node. <\/p>\n\n\n\n

    So, in this section, we will gain access to the NOWNodes service and will explore API call methods to maximize the potential of your blockchain projects. The RPC node provider offers robust solutions making it easier to interact with various blockchains via API key. <\/p>\n\n\n\n

    By offering full nodes via API key, the node-as-a-service platform removes the need for developers and crypto businesses to set up and maintain their blockchain nodes, which can be time-consuming and resource-intensive in terms of finance, technical and human consumptions. <\/p>\n\n\n\n

    Moreover, the service offers access to block explorers, WebSocket connections, and dedicated solutions. To get access to RPC nodes such as\u00a0Polygon full node<\/a>,\u00a0Solana full node<\/a>,\u00a0Fantom full node<\/a>,\u00a0BSC full node<\/a>,\u00a0TRON full node<\/a>, etc., and send API requests, follow the simple steps below:\u00a0\u00a0<\/p>\n\n\n

    1. Registration:<\/strong><\/h4>\n\n\n

    Start by visiting the\u00a0NOWNodes website<\/a>\u00a0and sign up for an account. This involves verifying your email address and choosing a tariff plan (with an opportunity to pick up a free START plan with access to 5 blockchains and one API key).<\/p>\n\n\n

    2. API Key Generation:<\/strong><\/h4>\n\n\n

    Once registered, you\u2019ll have the ability to generate your unique API key. This key is your passport to making API calls to the RPC nodes you\u2019ve chosen. <\/p>\n\n\n\n

    Once you\u2019ve got your API key, find the docs page and explore the API call methods. Utilize the provided endpoints to send API requests.<\/p>\n\n\n\n

    The RPC node provider bridges the gap between developers and blockchains, offering hassle-free access to essential blockchain data. By understanding how to gain access and utilize the different API methods offered by the RPC node provider, developers can accelerate their blockchain projects, bypassing the traditionally labor-intensive node setup and maintenance process. <\/p>\n\n\n\n

    Now, let\u2019s dive deeper into the theme of utilizing API call methods and explore the use cases. <\/p>\n\n\n

    Sending API Requests in Postman<\/strong><\/h3>\n\n\n

    As soon as you get your private API key, you can send API requests in Postman. Postman is a popular tool that builders use for the API development and testing. It provides an intuitive interface to send API requests and visualize responses, making it easier for developers to understand and develop their applications. <\/p>\n\n\n\n

    If you want to send a GET<\/strong> and POST<\/strong> API call in Postman using NOWNodes, follow the steps below:<\/p>\n\n\n\n

    1. First, set Up Postman or utilize its Web version. <\/em><\/p>\n\n\n\n

    2. After that, <\/em>create a New Request:<\/em> Click on the \u2018+\u2019 button to open a new tab. From the dropdown on the left side of the URL input bar, select either \u201cGET\u201d or \u201cPOST\u201d.<\/p>\n\n\n\n

    3. Enter NOWNodes Endpoint: <\/em>In the URL input field, type the NOWNodes API endpoint for which you want to make the request. For example, if you\u2019re going to get the Bitcoin block, your API request might look something like this:<\/p>\n\n\n\n

    curl --location 'https:\/\/btcbook.nownodes.io\/api\/v2\/block\/0000000000000000000ccb9329b01b002c8be6ebf430725704d3c567e977e306' \\\n\n--header 'api-key: your-api-key'<\/code><\/pre>\n\n\n\n
    4. Make the Request:<\/em> Once you set everything, click on the \u201cSend\u201d button to make the GET and POST API requests. The response will be displayed in the lower section of the window.<\/p>\n\n\n\n
    Remember to always check\u00a0NOWNodes\u2019 official documentation<\/a>\u00a0to ensure that you\u2019re using the correct endpoints, parameters, and authentication methods. Different blockchain RPC nodes might have specific requirements or structures for their API call methods.<\/p>\n\n\n
    GET Request Examples<\/strong><\/h2>\n\n\n
    As we already know, the API GET method is commonly used for retrieving information from a server. It is ideal for scenarios where the request is read-only and does not modify any data on the server. <\/p>\n\n\n\n
    The RPC node provider offers a collection of different API methods for blockchain developers that facilitate interaction with various blockchain networks. <\/p>\n\n\n\n
    Below are some use cases for different API methods to make GET requests:<\/p>\n\n\n\n