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Remote Procedure Call is referred to by the abbreviation RPC. RPCs give you the ability to run applications in a different place and to communicate with servers remotely. In the context of a blockchain, an RPC enables communication and interaction with a server node on the defined network.

Polygon RPC Issues on and how to set up a Custom RPC

To interact with a blockchain, we need a mechanism to connect to the network servers via an appropriate and generic choice to do activities such as viewing a balance, making a transaction, or dealing with a smart contract. We are able to establish that connection with the servers thanks to RPCs.

Users can make requests and interact with the blockchain after a developer produces a decentralized application (dApp) with RPC capabilities. If you've ever connected a wallet, such as MetaMask, to a decentralized exchange (DEX), for instance, your connection and communications are being routed through an RPC to communicate with a blockchain server.

Remote Procedure Call is referred to by the abbreviation RPC. RPCs give you the ability to run applications in a different place and to communicate with servers remotely. In the context of a blockchain, an RPC enables communication and interaction with a server node on the defined network.

The same principles that apply to function calls or standard programming techniques are used to code all RPCs. Even though the subroutine was designed for local or remote execution, developers still use the same code. As a result, programmers are not required to specify the location of the execution of the processes.

RPCs are advantageous because they enable developers to divide programs and dApps into several components. We can separate logic from display since these components can operate independently of one another. Therefore, when it comes to web applications, it is possible to separate the frontend side from the real app. One benefit of this is that security can be increased because call functions are the only way to access the data directly.

RPCs are extremely similar to function calls, with the exception that they take place between two different systems. RPCs are the most simple API that developers can use to communicate with servers and execute code remotely.

In the context of blockchain, a server is frequently referred to as a node. As a result, when it comes to the realm of cryptocurrency and blockchain, we need a node to use RPCs.

We can read blockchain data from these nodes, which are also referred to as RPC nodes, and transmit transactions to various networks. This means that for our program to run properly, an RPC node is essential. We are unable to allow our dApps to communicate with the blockchain of our choice without the ability to send an RPC call.

How to configure or change your RPC in Metamask?
Make sure you have chosen Polygon (Matic) network in your MetaMask wallet.

  1. Access your account details:
  2. Choose the Settings page.
  3. Choose “Networks” setting. ...
  4. And change the RPC address.




So what should you do when a RPC is down or having issues such as the Polygon RPC lately?
You can create a Custom RPC by following these steps:
- First you have to go to https://rpc.maticvigil.com/ and sign up with an e-mail address by clicking on the confirmation link you received.
- When you have clicked the confirmation link, you will be redirected to the RPC dashboard page.
- Insert a name in the Your Dapp Name field, to create a new dAPP then click the Create App button.
- After submitting the form, the custom dAPP will be created, then click the dAPP link on the dashboard to view the details.
- Your apps detail page will be displayed and you can copy the Matic Mainnet RPC url to use in your wallet confirguration.
- Open your MetaMask settings and go to Network Configuration for Polygon.
- Enter your new custom Matic Mainnet RPC URL from the dAPP and click Save.

You have successfully created a custom RPC and configured MetaMask to use it to connect to the Polygon (Matic) Network.

Here are a few examples of Custom Polygon RPCs:
https://rpc-mainnet.matic.network
https://rpc-mainnet.maticvigil.com
https://rpc-mainnet.matic.quiknode.pro
https://matic-mainnet.chainstacklabs.com
https://matic-mainnet-full-rpc.bwarelabs.com
https://matic-mainnet-archive-rpc.bwarelabs.com

Fast, reliable and free Polygon RPC Endpoint : https://www.ankr.com/protocol/public/polygon/



Written By

Petrache Ionut

Jul 1, 2022