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Questions tagged [server-side]

The tag has no usage guidance.

0
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1answer
23 views

Best options to host an ethereum react dapp to a custom domain

I'm looking for best options to host an ethereum dapp created using react and drizzle, with the following requirements: It needs to be hosted in a custom domain (.com / .net / OR .io ) that I have ...
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2answers
25 views

How to install infura to a server runing ubuntu 16.04

Im setting up an exchange and came to the installation of ethereum using this document http://support.bitexchange.systems/support/articles/how-to-install-ethereum-in-your-server. The 'geth' command ...
1
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1answer
31 views

Initiate transaction from server to smart contract

In my case, i have an API written in PHP which periodically checks the database. If certain condition was met, i need to send an alert message from the API to an account/node in the Ethereum ...
0
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1answer
19 views

DApp on Node2 accessing smart contract deployed by Node1

Node 1(Desktop) deployed a contract on private blockchain. From node2(Laptop),I want to interact with the contract. But I failed at 'web3.version.getNetwork(err, netId)' function.This function throws ...
0
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1answer
31 views

Server for end production dAPP?

I'm talking for end-production purposes and I'm interested what server specification and which hosting services dAPP developers use. Considering my scenario, I made a decentralized application in ...
2
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0answers
201 views

ping / pong pattern for infura websocket [closed]

Infura websockets disconnect after an hour of in-activity so they suggest you ping / pong the connection at an interval less then an hour. My problem is I'm new to server-side programming and don't ...
0
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0answers
22 views

How to process a request with oraclize on the server?

First of all, it's the first time I use Oraclize. I have a contract makes a request to a remote server (Python) that I have, my question is, how to process that request? If I understand correctly, the ...
0
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1answer
116 views

How to prepare VPS enviroment for instalation and running of Ambrosus node?

I would like to run Ambrosus development node. On Ambrosus github there are sume instructions, but I do not know how to prepare enviroment, what version of Ubuntu I should use and what tools should I ...
0
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1answer
26 views

Deploy contract from browser but ensure details saved to server

I'm very new to blockchain/Ethereum development and would like to allow users to directly deploy contracts from a site using MetaMask, however, I want to make sure that I can keep a record of contract ...
1
vote
1answer
380 views

How to generate Ethereum wallets & keys on serverside with JS?

Anybody knows, how can ether wallets be generated on serverside (node.js). It's needed for service, to create a new wallets for new customers. Maybe something like bitcoinJS-lib but for ethereum? But ...
0
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0answers
43 views

How to unlock account for calling a contract method using web3.js? [duplicate]

I am trying to call a non-payable method for a server-side application. I am using infura as the web3 provider for the rinkeby network. The web3 1.0 documentation says that the method call should be: ...
3
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3answers
241 views

How to sign a transaction in Rust

Given a private key, I would like to sign a transaction offline, so it can be sent to a node or Infura without unlocking an account first. I can find many examples in javascript using ethereumjs-tx ...
1
vote
1answer
224 views

How to deploy a smart contract in a server?

I have developed a smart contract and compiled it with solc and bin and abi fils have been generated. Now, I want to deploy this contract using web3js in a linux server. How can I do it?
0
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0answers
162 views

How to setup go ethereum on AWS

We currently try to run geth on AWS, but with fast syncing it haven't synced in two days. What setup would you recommend? We have a large instance with 16gb ram and set up --cache 4096 I am not sure ...
2
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0answers
35 views

How to design a provably fair dyanamic between a central server and smart contract

I'm looking for a good design pattern that involves a central server but (hopefully) leverages the blockchain for provable fairness. Let's say I intend to build a system that generates math problems, ...
0
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1answer
54 views

For production dApps, what kind of sync should be done on server node?

I plan to use web3 server side using NodeJs with geth. For production usage, should I do a full sync or fast sync is enough? Also, how much space do I need to store the blockchain data for each of ...
2
votes
1answer
2k views

Parity Full History Node

I'm trying to setup personal full node in archive mode (whole history) on server with this parameters: Intel i3 3.4GHz 8GB DDR3 1333 MHz 2TB HDD 100 Mbps / 128 I was expecting issues with HDD speed (...
4
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2answers
2k views

Best possible way to launch the ethereum mainnet node on AWS

I have multiple applications running on my local system. I want to make them live, I need ethereum main net node of my own. I launch the ethereum node on AWS server using supervisory mode but it doesn'...
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0answers
29 views

Does cellphone 4G tethering wifi cause the Ledger 'transaction rejected by server' error?

I have just tried once again to make an ETH transaction using the default suggestion of 45 Gwei, which seems much too high. Yet it was rejected by the server, and the Ledger support has only emailed ...
1
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1answer
98 views

Can I relay signed transactions from device to server to Ethereum?

I am trying to generate transactions from a device that will have a copy of my private key, send that over to my node server, which will then just send that over to ethereum. Are transactions just ...
1
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0answers
233 views

Geth Node as Web3 Provider: Impact of Multiple Client Connections

Related to this question (restricting access to Geth node), if I have a remote geth node and several clients connecting to it as a web3 provider const web3 = new Web3(new Web3.providers.HttpProvider('...
3
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1answer
1k views

Restricted Access / Authentication for a Remote Geth Node

I have setup remote geth nodes that are constantly running as web3 providers to support my DApp. What is the best way to restrict access to make sure that only authorized clients (my server) are ...
1
vote
1answer
126 views

Event listening on a VPS server with limited ressources

I need to listen to events on the Ethereum blockchain on a small vps server with limited ressources (1 vcore, 10go SSD, 2go of RAM). Is it possible to do so without running a full Ethereum node ? What ...
4
votes
1answer
8k views

Ethereum node hardware requirements

I'm about to start syncing node on the server, do you know if there are any requirements to the server, like CPU or GPU and most of all, free disk space. Any tips about syncing on server? Cheers! ...
3
votes
1answer
1k views

How to store lots of private keys on a server?

I am building a web app where I have to keep track of a private key associated with each user. For the sake of this discussion let's assume that it's an exchange and users can send their ETH to this ...
3
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0answers
188 views

How do you connect to a node from the server side of a meteor app

This is the command I am using to run the node (a private testnet) geth --networkid 420 --nodiscover --rpc --rpcaddr "0.0.0.0" --rpcport 8545 --rpcapi="db,eth,net,web3,personal,web3" --rpccorsdomain "...
4
votes
1answer
356 views

Connecting to an ethereum node from meteor server side

I get the error TypeError: XMLHttpRequest is not a function when I try to connect to a node on the server side of my meteor application. The error is caused by meteor using the meteor HTTP package ...
4
votes
1answer
126 views

How to securely Interact with a contract on user's behalf from centralized server?

To explain myself, what I need is to be able to have a way so that the central server can only interact with the contract only with valid identification from a user? This identification provided by ...
1
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2answers
1k views

Hosting Ethereum on Digital Ocean

I am not quite sure whether this is right place to ask this question but let's carry it forward. I wanted to host Ethereum on Digital ocean. Has anyone ever tried that? Any HowTos on hosting ethereum ...
5
votes
1answer
3k views

How do I host Ethereum on a server?

I recently tried to get geth and solidity up and running on a virtual server I have some free time on. I got stuck trying to build the Solidity compiler due to issues with the OpenGL library. I've ...
10
votes
1answer
2k views

How can non-javascript applications communicate with Ethereum nodes?

Web3 implements the Ethereum JSON-RPC spec and seems to be the preferred method for communicating between a javascript applications and the Ethereum node. However there are situations where you might ...
2
votes
1answer
737 views

How to use contracts deployed by embark on the server side of a meteor app?

I have created my example using embark meteor_demo and then changed my configuration on embark.yml to output the contract on the server folder instead of the client. From that point i started getting ...