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Questions tagged [eosjs]

QAs about the JavaScript module eosjs which uses RPC-APIs to interact with an EOS.IO blockchain.

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How can I got transactoin receipt using transaction id in EOSJS or RPC method

I want to get transaction by its hash using eosjs or rpc method
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6 views

EOS token payment gateway

I was trying to create an API which integrates with nodeos on my server, rpc calls can be made by the web api for the purpose of a payment gateway for eos . My question is how to integrate an API with ...
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1answer
13 views

Create account in EOS using RPC method or npm package [duplicate]

I wants to create account in EOS using RPC method or Npm package.As per review dev doc of EOS not found any methods for it. I am implementing this in nodejs. Kindly guide for it, how can i process ...
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16 views

How to encode account name (to get uint64) using eosjs2?

I'm migrating from @scatterjs/eosjs eosjs@16.0.9 to @scatterjs/eosjs2 eosjs@20.0.0. using eosjs I had the following solution: Eos.modules.format.encodeName(name, false) using eosjs2 I found the ...
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21 views

How to programmatically send tokens using EOSJS safely?

According to the EOSJS readme: Using the JsSignatureProvider in the browser is not secure and should only be used for development purposes. Use a secure vault outside of the context of the ...
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1answer
38 views

Transaction requires authority, but does not have signatures for it

I am trying to send tokens from one account to another using eosjs & reactjs with the standard eosio.token contract but I have issues with the authority. Can someone please explain the meaning of ...
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1answer
26 views

EOSLime with Kylin: Account Creation

EOSLime does not seem to be able to create accounts with Kylin chain thru my method. It produces an error that there is insufficient RAM. My method: let default_a = eoslime.Account.load('...','...');...
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1answer
10 views

TypeError: f is not a function

I'm trying out the eosjs official documentation, but can't make any RPC calls. This is how I've initialized everything: const { Api, JsonRpc, RpcError } = require('eosjs'); const { fetch } = require('...
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58 views

How to create a multi-sig proposal with eosjs?

I am trying to create a multi-sig proposal (eosio.msig::propose) using eosjs v20.0.0. The proposed transaction is arbitrary but in my case, I would like to propose an updateauth action. The ...
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35 views

modules.format.encodeName() replacement in 20.0.0?

In eosjs@16.0.9 I have a Eos.modules.format.encodeName() Is there something like that in eosjs@20.0.0 or what can I use to replace it?
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38 views

Get Table Rows with Pagination

How do we get records from a table by pages? My requirement: I have a table with 100 records and want to display all these records in my front-end-application with 10 records per page and if the user ...
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18 views

How to validate public key in eos using java?

As there are function in eosjs-ecc library to validate keys in JavaScript: const ecc = require('eosjs-ecc') const pubkey = 'EOSXXXXXXXXXXXXXXXXXXXXXX' const wif = '5HXXXXXXXXXXXXXXXXXXXXXXXX' ...
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1answer
17 views

How to avoid CORS error on testnet?

When accessing an eos contract via eosjs, it works fine on a local net, but raises an error on testnet (jungle): Access to fetch at 'https://jungle.eosn.io/v1/chain/get_abi' from origin 'http://...
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31 views

Error: fetching abi for <accountname>: Read past end of buffer

I am trying to send transaction but getting this error Error: fetching abi for : Read past end of buffer
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21 views

Error while pushing a transaction using python?

after successfully signed the transaction, when i try to push it using the pyton api from the eos developers portal, i got the following error {'code': 500, 'message': 'Internal Service Error', '...
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1answer
48 views

Installing and running an EOS mainnet node

The purpose of this installation is for me to be able to make /v1/chain/ mainnet API requests on a remote server that I have access to that won't disrupt mainnet itself. I tried using EOSNation/...
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39 views

Error while signing a transaction using nodejs wallet API?

I am building an eosdapp using nodejs code.I got the wallet api from the developers portal,but when i run the code i get the following error. {"code":500,"message":"Internal Service Error","error":{"...
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34 views

EOSJS error Non-base58 character

Please help! I'm currently encountering the ff. error Uncaught Error: Non-base58 character at Object.decode (eosjs-jssig.js:26) at Object.checkDecode (eosjs-jssig.js:15) at y (...
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1answer
67 views

Cannot create account using the EOSJS Create Account

eosjs 20.0.0 cannot create new account using the eosjs rpc call see following code snippet below. const addPrivateKey = "EOS8i1CXTY4Sz39XaQWX2RpccsCZ1nWM3w9zRhjCFChdci2Y65ck4"; const rpc = new ...
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1answer
44 views

How to unlock my wallet using nodejs?

The code given below is my nodejs code forunlocking my wallet name "seek".I got this API from eos developers portal,but don't know how to pass input data(wallet name and password) into it.Please help ...
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1answer
32 views

Is there any way to discard a committed transaction?

I always have this doubt whenever i push a transcation. Is there any way to cancel a committed transaction before it's verifed by the block producers?
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25 views

error while compiling code in eosstudio?

Recentlty, i tried a eosio IDE named eosstudio,which is pretty impresive.The problem i face while compiling my code is given in the picture.then I got an advice from a telegram channel that,chenge the ...
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82 views

Is there any IDE for eos smart contract?

Is there any IDE for compiling eos smart contract? for example ethereum have remix to compile and run solidity based smart contract.
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1answer
23 views

Any python api for getting account name by inputting public key?

Is there any python api for getting account name by inputting public key? I have got this code from developers portal, but I don't know how to use it. import requests url = "http://host/:port/v1/...
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17 views

eosjs dist files generation issue under Wsl

I would like to have a copy of the eosjs browser files as the generation of theses files (dist files) doesn't work under windows (wsl : unbuntu) where can I get these files? (I've tried to use ...
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2answers
48 views

how to avoid scatter confirmation message?

I have built an dapp EOS blockchain. It's almost like twitter where the user can tweet and also use as a microblogging site in EOS blockchain.I have used scatter as transaction signer for using my ...
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25 views

eosjs-ecc in other languages?

I'm looking for a way to do this https://github.com/EOS-Nation/eos-encrypt/blob/master/examples/encrypt-multiple-keys.ts it Java and Swift. Did anyone try to port it?
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1answer
27 views

How to add the formula of ram calculate price for eos in our project?

Actually I am building an application and I would like to add the ram calculation for eos there. if anyone wants to calculate the ram for the accounts creation, he can use our website.thanks.
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1answer
87 views

New JSSignatureProvider is not a function in EOSJS

Version of EOSJS eos@fffff and eos@beta3 Describe the bug const JsSignatureProvider = require('eosjs/dist/eosjs-jssig'); const signature = new JsSignatureProvider([privKey]); TypeError: ...
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1answer
34 views

Scatter detection delay issue

I am working on developing a web app in EOS. I am using scatter browser extension to sign the transactions. During page load, the status of scatter is checked using the following code const setStatus ...
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2answers
95 views

EOS connection to react native app

Can someone share an example of EOS blockchain integration with react-native? I am new to EOS development and I am struggling to integrate it in react-native app, there are always some missing ...
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1answer
31 views

How can I query data from smart contract data base?

I mean not just printing data on the console, like in the documentation examples, or by get_table_rows API, but return it as function result, or maybe there is another way. The idea is that I need an ...
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Demux: How to deserialize transaction data from MongoActionReader stored in MongoDB by mongo_db_plugin?

When I use NodeosActionReader I can get data passed as parametters to actions via payload.data.parametter. However when I use MongoActionReader payload.data contains only hex data. How to deserialize ...
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1answer
56 views

Should I generate a new address per payment?

on the bitcoin network I generate a new address for each payment I am to receive. this way I can associate the address with the sender and I can tell when the payment has been made by monitoring the ...
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1answer
58 views

Double sign a transaction, first on client, second on server

I am struggling with getting the following scenario to work, I want to create a transaction signed by two parties (not via the multisig contract, just a transaction with 2 signatures). One is the ...
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1answer
66 views

How to have real-time communication in dapp?

How would a real-time 1v1 game work on the EOS Blockchain? I've noticed that many of the games/gambling dapps on EOS are mostly player vs. blockchain, like EOSBet. Could I have real-time updates to ...
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Deploy Contract from browser using eosjs

so I would like to deploy an EOS contract using eosjs. I encountered several problems (especially with converting the .abi and .wasm files). All the examples either use node (so fs is available) or an ...
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1answer
35 views

Is there an Infura or similar node service compatible with eosjs? For testnet/mainnet? Or, is starting your own node the way to go?

Are there any public api nodes for EOS? I.e. API key rate limited, etc I'd also appreciate a post on using the EOS testnet the first time. I can't find anything in Google search results about EOS, ...
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2answers
223 views

How to watch my account for transactions

I am looking for an example of checking transactions that occur on my account. I read that there is a demuxjs library that supports this, but it is difficult to approach. Clarification: I am ...
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1answer
63 views

Max inline action depth per transaction reached on simple EOS transfer action call?

I am seeing the error Error 3040000: Transaction exception Ensure that your transaction satisfy the contract's constraint! Error Details: max inline action depth per transaction reached after a ...
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1answer
79 views

eosjs ecc sha256 produce different hash than the EOS cpp sha256

I should compare two hashes and the scenario is the following: I create a new record in the contract as I pass eosjs-ecc sha256 generated hash as string. Let name it hashA. When I want to update the ...
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2answers
82 views

Best way to read data from contract using eosjs or Cleos

How you read the data from your contracts, just by using actions? Or there is another way? Thanks!
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1answer
131 views

How does EOS create signature?

For signing serialized transaction it needs make sha256 one time, but EOS returns signature longer than 64 symbols. My question is - what is additional info added to the signature?
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1answer
297 views

Is it secure to use keosd in an aws to let dapp/app server sign transaction?

I would like to know if it is secure to run keosd on an aws locally as a hot-wallet, to let the server of a dapp send a transaction which should be signed to the aws. The server of the dapp would get ...
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1answer
206 views

A possible alternative sign in/login process instead of firebase auth / amazon cognito using an eos contract?

I had the the idea of a secure alternative login process using an EOS smart contract instead of firebase or Amazon cognito. I would like to know if something like this feasible? My idea is somewhat ...
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1answer
280 views

How to transfer EOS Token with eosjs? [duplicate]

The title sums it up ;-) I'd like to move EOS tokens (say EOSDAC for example but any token will do it for my education) using the eosjs API... I've tried to use Scatter.js and did that but it's not ...
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1answer
192 views

New version of eosjs does not use chainId, How does it work?

I have worked with both new and previous versions of eosjs. In the previous version I had to make a config object like this: Eos = require('eosjs') // Default configuration config = { chainId: ...
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25 views

How to sign with Scatter + Hard Coded Key?

I need to sign a transaction with both a hard coded key on the server as well as the user's key. How can I go about doing this? Is there an example somewhere?
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1answer
460 views

How to transfer EOS token using Scatter.js or eos.js?

I've successfully managed to use eosjs to transfer some EOS but when I'm trying to send something else (a token) it's no longer working. For example that code is working: import ScatterJS from '...
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1answer
53 views

How eosbetdice listen to new active bet and then push an resolvebet action?

I guess this is done off-chain? they should have some daemon to monitor actions. Once a new active bet is created, the daemon will sign the seed hash with the private key and then push an resolvebet . ...