Questions tagged [eosjs]

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

55 questions with no upvoted or accepted answers
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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?
3
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1answer
252 views

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 ...
3
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1answer
169 views

EOSJS how to query the top voters

I can get some unsorted voters by using await eos.getTableRows({ json: true, code: 'eosio', scope: 'eosio', table: 'voters', // tableKey, // lowerBound, // upperBound, ...
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1answer
46 views

Multinode data with eosjs

I need to prepare eosio dashboard for that I need multi nodes information. I am using eosjs nodejs library to get genesis node chain information. Can I get which other nodes are connected with genesis ...
2
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2answers
303 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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0answers
23 views

How to deserialise extended amount?

How to deserialise extended amount from "0x00924c50832000000000000000000000" to a number in JS or PHP?
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0answers
162 views

How to calculate the minimum RAM & minimum Stake required for a new account?

In the browser via eosjs, I have made the below function adapted from the docs but how do I calculate the minimum RAM in bytes, stake_net_quantity and the stake_cpu_quantity? I understand these ...
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0answers
20 views

How can I use nonsecure connection to localhost instead of secure one

I'm pretty new with EOS programming and I'm trying to run simple broadcast transaction. I'm using following code: let transaction = EosioTransaction() transaction.rpcProvider = EosioRpcProvider(...
1
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1answer
64 views

Code sample to use PowerUp feature

Can someone point me to code samples on how to use PowerUp feature? Also, how can a wallet be setup to use it automatically? Thanks in advance.
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0answers
115 views

Unable to retrieve user tokens using get_currency_balance

I am trying to get user tokens with the following method: static async getUserTokens(userAccount) { console.log("Get tokens for: " + userAccount); try { const rpc = new JsonRpc("http://...
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2answers
3k 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 ...
1
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2answers
314 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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0answers
88 views

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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0answers
37 views

Payment to dapp with text comments best practice

I am new in eos, so maybe i say something strange. I want to create a dapp that can receive payments from mobile wallets with text comments. I imagine this like front end where user type text and ...
1
vote
3answers
164 views

How to "get currency balance" with mongo_db_plugin?

I'm struggling to find the answer to that issue and thought maybe the collective knowledge might be helpful ;-) I'm trying to get the balance of a certain token for a specific account from the ...
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0answers
307 views

Error 3090003 - How to provide signatures for eosio.code?

When I try call custom smart contract action I get this error. message":"transaction declares authority: '{\"actor\":\"triviafrenzy\",\"permission\":\"active\"}', but does not have ...
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0answers
74 views

Transaction exception while pushing transaction

While calling the push transaction API with the following body { "signatures": ["SIG_K1_K5umBpyieHE6czvtDMEAVjypG5Zz5sYo4NKbUkqJfe562mX22aLGwwZsYSQJLhBZi5s3hvjg6zVfS3ZucM97Ji5KNXSm4a"], ...
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0answers
115 views

generate eos keypair from Mnemonic/Seed

is it possible and is it secure to generate eos keypair using bip39 mnemonic seed? something like: const hdkey = require('hdkey') const wif = require('wif') const ecc = require('eosjs-ecc') const ...
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0answers
109 views

Maximum call stack size exceeded with scatterjs and eosjs

Use in vue const eosOptions = { expireInSeconds: 60 } const network ={ blockchain: 'eos', protocol: 'http', host: 'jungle.cryptolions.io', port: 18888, chainId:'...
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0answers
197 views

List of transactions from a contract

I've been on this all day and can't figuring it out on my own so I'm reaching out for your help ;-) How can I get the list of ALL the transactions associated with an account? I've tried to play ...
1
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2answers
309 views

How to transfer/deposit tokens on Front end Dapp with Scatter?

I am working on an EOS frontend Dapp with Scatter on local chain. I am getting a problem with transfer/deposit tokens from one account to another. After logging into scatter with "test1" and trying to ...
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0answers
95 views

scatter get identity generating a new publickey instead of using the keypair in the identity

I am trying to verify if account name belong to a publickey gotten in the client side with the browser. Why does scatter getIdenity function returns the right identity with the right eos account but ...
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0answers
315 views

How to call a contract from scatter

I want to make a transaction with Scatter but I'm getting this error function callContract(){ const account = scatter.identity.accounts.find(x => x.blockchain === 'eos'); const ...
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0answers
150 views

How to get assertion messages from Nodeos?

When I trigger a failing eosio_assert my Nodeos instance outputs something like: 2018-08-01T16:45:42.006 thread-0 http_plugin.cpp:476 handle_exception ] Exception Details: 3050003 ...
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0answers
259 views

Using recover_key with eosjs

I want to validate user signatures in my smart contract. As I understood, I am supposed to do that with recover_key function from crypto.h I am using JavaScript with eosjs and eosjs-ecc for ...
1
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1answer
70 views

latest EOSJS (20.0.0-beta2): missing node_modules/eosjs/lib/index.js?

Trying to import latest build of EOSJS but getting error: Error: ENOENT: no such file or directory, open '.../node_modules/eosjs/lib/index.js' previous versions 'work' until I try to access the Rpc....
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0answers
13 views

Is there a C++ library just like eosjs?

I want to sign and send transactions (generally trigger any smart contract action) from a c++ external app. How can I do this? If my app was in javascript, that would be easy since I know that I can ...
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0answers
12 views

How to make the code automatic appove smart contract action?

The environment is like this The user will click the login button to log in to the cloud wallet, so that the code gets the user's login permissions, but when performing certain actions, you still need ...
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0answers
24 views

Signing a transaction on an edge device without TAPoS fields and push it separately to the chain

I do have a use case where I need to sign a transaction on an edge device without having connection to the chain (but lets consider chain ID , user and private key are well known on the edge). I am ...
0
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2answers
47 views

How to listen/get on-chain data in real time

I know that I can use eosjs to read/query multi_index table data from the chain. However, my goal is to listen to/on these changes. Specifically, I want to receive a notification whenever something ...
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0answers
20 views

Is there a small C++ library or a simple gist/function just for signing transactions?

I'm building an app that consists of two services, one service will run on the edge and the other in the cloud. Obviously, I want the service on the edge to be lightweight since It will run on ...
0
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1answer
32 views

Smart contract redeem token action - Example

Do you have some example that shows how to design an action for a smart contract that when the user sends a REDEEMCODE action the smart contract will transfer some quantity of a custom token for the ...
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0answers
24 views

Serializing EOS transactions offline use eosjs

can anyone suggest any advice into serializing offline eos transactions? We are using the eosjs api serializeTransactionsWithActions method to serialize transactions and we implemented an Offline Abi ...
0
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1answer
20 views

WARN: 10 attempts to find canonical signature

What does this warning mean? WARN: 10 attempts to find canonical signature This is a warning as I understand from eosjs.
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1answer
25 views

Creating an account key pair outside of using eosjs

Hello Guys is there any method through which I can create a valid EOSIO key pair without using EOSJS, If that's not possible can any one explain how does eosjs-ecc create those keys and can I ...
0
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1answer
24 views

Signing and submission of transaction seperately

is there any way where we can have a user sign a transaction using their private key on the front end. And we get the signed transaction transfer it to our server over the internet and push the ...
0
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1answer
44 views

How to obtain signatures?

I'm trying to send a transaction by using eos push_transaction, but I don't have signatures. I found some exaples, they have signatures like below, they start with SIG_K1_ I have a transaction object. ...
0
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1answer
30 views

How much RAM saved / latency added from new KV Table

How much RAM do the KV Tables save / how much additional latency does this storage type add to the trx lifecycle? https://github.com/EOSIO/eos/releases/tag/v2.1.0
0
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1answer
45 views

How much RAM to buy?

How can one determine the amount of RAM to buy for a new account and for regular transfer actions? The page here recommends 4K of RAM: https://support.bancor.network/hc/en-us/articles/360018325291-...
0
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1answer
39 views

dApps: Public networks & Messaging

Could you please help me to figure out the following questions? Is it safe if users of a decentralized application use public nodes endpoint via RPC to make transactions to smart contracts? Such as ...
0
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2answers
61 views

How to get irreversible status in eosjs?

I am currently using api.transact to send the transaction to the eos Blockchain. I want a way to check for irreversile status so that I can confirm that the transaction has happened successfuly. Is ...
0
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2answers
87 views

How to create an EOS account using eosjs without existing account and its private key

I have a question about EOS, eosio and eosjs. I want to create an EOS account using frontend website that I developed. I I recognize that creating an account needs existing account, and needs its ...
0
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1answer
38 views

EOSJS get information about a list of the multi-index table rows

Suppose that I have a user table, where each user has a status. TABLE user_info { name username; uint64_t status = 0; auto primary_key() const { return username.value; } }; ...
0
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1answer
44 views

EOS 'newaccount' action generates the error Error: missing authority.keys (type=key_weight[])

I have created a MultiNode Setup using the Bios Boot sequence https://developers.eos.io/welcome/latest/tutorials/bios-boot-sequence. And created the accounts as 'eosio' & 'accountnum11'. I am ...
0
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1answer
46 views

Name should be less than 13 characters, or less than 14 if last character is between 1-5 or a-j

i am facing this error when i hit my Post API,Basically i am creating this API for propose the Multisig Transaction. And i am follow the documentation of EOSJS from offical website of EOSIO. MY naming ...
0
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1answer
252 views

Setting eosio.code permission for contract account in eosjs

I am trying to set the eosio.code permission for my contract on account kbo2byvpkbiy (private blockchain). The reason I want to do this is calling eosio.token/transfer from within this contract. All ...
0
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1answer
93 views

eoslime: Provided keys, permissions, and delays do not satisfy declared authorizations

When Trying to run my test with eoslime test and calling eoslime.Contract.deploy(...., ....) I get Error: the string "{\"code\":500,\"message\":\"Internal Service Error\",\"error\":{\"code\":...
0
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1answer
57 views

Can't create EOS Account with eosjs library (UnhandledPromiseRejectionWarning)

I have already run this code few weeks back and back then it was working perfectly but now it's giving me an error: UnhandledPromiseRejectionWarning: Error: account names can only be 12 chars long I ...
0
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1answer
232 views

How to sign this EOS transaction provided with below code and response?

This below code is working fine in testnet. I want to do transaction, signing and broadcasting individually. I generated the raw transaction, but I don't understand how to sign it. I have provided the ...
0
votes
1answer
311 views

How to get Block using JsonRpc from eosjs using nodejs?

Whenever I try to get the block using the eosjs in NodeJS like in the example I get the error 'Invalid Block number or ID, must be greater than 0 and less than 64 characters' Altho when I use other ...