Gateway: A powerful RPC Gateway for Web 3.0

Gateway offers a relevant and disincentive back-end solution for dApps developers. A complete tool that integrates, among other things, the possibility to create an RPC communication node towards it with just a few clicks Major blockchain networks. decoding.

In the beginning it was the blockchain

We must begin here by recalling some basic facts. A “blockchain” is a group of computers operated by individuals and/or companies. They collectively participate in checking the status of the decentralized ledger.according to predetermined rules.

In the context of the Internet, we are talking about servers, but in the context of blockchain technology, every physical operational interface is referred to as a node or node. Spread over the entire planet, it is the connection of all the nodes that makes blockchains like Ethereum or Bitcoin work. There is no main or central server, the truth is distributed consensus all the time, and So the network is decentralized.

By extension, a node is then a program that runs somewhere on the computer and allows you to participate in the network. By connecting with others among its peers, it can send and receive information, issue and validate transactions or even store and prove the state of the blockchain. These posts and interactions are done thanks to Small acronym heavy with meaning: API.

The thorny issue of communication

Application programming interfaces or “APIs” are defined as the set of computer functions through which two programs interact without human mediation. API is broken down into three conceptual words:

  • Application: This is any service that another developer or application wants to interact with. It can be a banking service, social network, dApp for games, a shopping portal…
  • Programming: A computing function created by the developer so that it reacts independently when the application makes a request. The program can, for example, transmit data, collect information at regular intervals, fill out a form, etc.
  • user interface: This is the nature of an API, it lies between applications and nodes. The middle layer handles the transfer of data between systems.

Three terms perfectly sum up the problem that hides under these sometimes complex code renderings. Formally, these requests include the request verb, addresses, and sometimes the request body, but we’ll get to that later. Its working as follows:

  • Client Application (dApp) Launches an API call to retrieve the informationalso known as a search query.
  • After a valid request is received, the recipient API initiates a call to its own node.
  • This is what returns the response to its API with the requested information.
  • The API forwards the data to the initial request application.

Without APIs, there is no interaction between nodes, and therefore no blockchain.

So APIs are necessary, but are they sufficient?

An API provides a rendered service that programs or applications can consume. In a way, it works like the port you plug the device into (dApp) so you can access the power source (the blockchain) and the electricity (data) it needs to function.

The analogy of blockchain technology with an electrical grid is apt

And of course, These interfaces abound on anything closely or remotely resembling a computer network Like the Internet. There are many types. The most popular is the REST API. New acronym for “representative state transfer”. This architecture supports CRUD (create/read/update/delete) operations. Thus, we have 4 distinct channels to create, read, update or delete resources managed by your node.

But that is exactly what hurts the bottom. Although very flexible and compatible with the majority of protocols, REST APIs, on the other hand, are limited to a data management role. Its four functions define as much as they hinder its use within the blockchain framework. why ? Its immutable nature does not allow for modifications or deletions, making 2 out of 4 possibilities unnecessary. smart contracts.

“Less is more!” : RPCs, a generic API that derives its strength from its simplicity

Instead of dealing with an inappropriate model, coding developers naturally moved towards a more efficient API format, I named RPCs. In distributed computing, RPC (Remote Procedure Call) refers to the process by which a program executes a subroutine in a separate location (the address space).

RPC is the easiest API to implement on node. Thus, developers can communicate with other nodes to execute code remotely, just as if they were calling a function in the program. After the code is executed, the response is sent back to the client node. To do this, he has only two actions at his disposal: GET and POST. In short, GET is used to retrieve remote data, and POST is used to insert/update remote data.

The GET and POST functions alone allow you to perform any “chained” operation. So when developers create dApps, RPCs allow them to publish code as a result of user requests on decentralized service systems. When users use their wallets to perform transactions or access a DEX, their requests go through a layer of RPC to interact with nodes containing the blockchain data they are interested in.

Why make it complicated when you can simplify it?

Now we know why RPC contract is important for applications. Without the ability to send an RPC call, we cannot allow our dApps to interact with the blockchain of our choice. This is where the “how?” question arises. All RPCs are coded on the same basis as normal programming routines or function calls.

in order to take Ethereum example, the most common RPC actions are encoded in JSON. It is a lightweight and popular data structuring and exchange format based on JavaScript syntax. Being just text formatted according to a JSON structure, “JSON-RPCs” are easy to implement, read, and debug. This is the reason for its prevalence, and not only in the context of Blockchain.

dApp request programming interface on the Ethereum network
Interface dApp issues a request via the gateway’s JSON RPC

They accomplish their tasks with a request that calls the routine hosted on a remote node. It passes three input parameters to it. A node may optionally return multiple data in response.

  1. Method: A line containing the name of the procedure to be called.
  2. Parameters: A set of values ​​to define the parameters of a given routine.
  3. ID: Identifies the request so that the response that might be produced can reach it.

A request does not necessarily expect a response. On the other hand, every response formulated by the destination node must be valid. This may contain the items listed below.

  1. Result: The data returned by the invoked action.
  2. Error: An optional item exists if an error occurred during the order.
  3. Data: An optional element that can contain other data specific to the node.
  4. ID: The ID of the request it is responding to.

Simple and effective but guess what…

Developers have better things to do than contract management!

As we have seen, since the inception of the blockchain, developers have sought to simplify their lives. I want as proof of this the fact that “Saint” Satoshi Nakamoto himself chose it JSON-RPC Format for Bitcoin, Back in 2009! But unfortunately, things are not so simple … It is necessary to develop a complex infrastructure around the RPC node. This process involves quite a bit of indexing, finding information, creating a database, etc…

Every developer’s fear spends a lot of time setting up a tool that doesn’t directly contribute to what they’re trying to create, and nodes are among the worst examples in this category. The development involved in actually building an RPC node can be resource-intensive and time-consuming. It is not uncommon for them to be compared Productivity killers.

As if that wasn’t enough, once node-RPC is configured and running perfectly, It is now a matter of preserving over time. Below is a non-exhaustive list of the tasks entrusted to you in this regard:

  • The nodes have to be updated regularly, and sometimes rebuild from scratch, in the case of a hard fork for example.
  • Some inquiries may involve executing millions of transactions. These “death requests” often wake you up at 3 AM to get them right.
  • Literal nodes can lagged more easily on the network for a variety of reasons: symmetry and connectivity issues, blocking on stale branches, and internal state issues. Your users will inadvertently receive outdated data, which can be very harmful, you will agree to…

Gateway RPC solution

So Gateway provides a particularly useful service, but it has also been very complete since The icing on the cake, it’s multi-string ! For developers, with just a few clicks, you’ll be able to have a multi-protocol data access port without worrying about implementing your own RPC node!

Gateway offers a multi-threaded RPC solution.  This allows developers to work on the Ethereum, Fantom, and Near networks at the same time
The gateway offers rpc nodes that can run on multiple networks

At this time, Ethereum (and thus all EVM-compatible Layer 2 alternatives), Near and Fantom networks are available. The list is obviously tentative and will increase regularly in the coming months.

In essence, Gateway rolls out fast, fully synchronized, up-to-date RPC nodes for you, available 24/7. The benefits of this method are numerous:

  • Unlimited access to light and full nodes that are updated regularly, so you don’t have to worry about ramifications or network changes.
  • Scalability and reliability: Gateway RPC nodes are available when you want them, as often as you want them.
  • Consistency: Providers need to deal with challenging edge cases, such as recent block synchronization issues that can lead to mismatches between network state and its representation within dApps. A problem that few competing suppliers have to deal with.
  • Productivity Gains: You’ll be able to devote yourself full time to building your project instead of running into additional and time-consuming issues!
Gateway offers a small video to show how easy it is to create an RPC node on a nearby blockchain network using their platform
Demo of creating an RPC Gateway Authentication Header

Gateway likes to present itself in the form of a “hub”, a nerve center that offers a set of tools meant to take charge of all so-called “background” issues. A much broader offer than just providing an RPC contract.

Carbon neutrality reveals an environmentally responsible approach. Its geographical spread ensures availability as well as decentralization. Striving for excellence in a highly strategic area that would quickly make Gateway’s RPC contract an “absolute must” in the sector.

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