Questions tagged [stellar-sdk]

For questions regarding a Software Development Kit (SDK) for Stellar client applications.

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8 views

Payment Transaction taking 6 seconds

Using the SDK and making very basic payments from one wallet to another with a digital asset. The issue is that every transaction that is made takes 6 seconds from call to response from the SDK. ...
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1answer
17 views

Timeout when submitting tx to the blockchain

I have running stellar core and stellar horizon together. Sometimes (recently even more) I am receiving such a response when trying to push tx to the blockchain. How could I approach this issue or ...
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2answers
20 views

Is there any option to get the price of XLM via python stellar_sdk or API?

For example XLM = $0.3537 now Is there any option or API&SDK script for it? or Do I have get it from other website?
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0answers
15 views

Transactions keep failing with reason 'op_under_dest_min'

I have written a simple program to swap assets using the strict_send method available stellar sdk for interacting with Horizon HTTP API. Below is the code construct - it's not productionized however, ...
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14 views

How to make a stellar project using the Django framework?

I have been tasked to develop a stellar platform and want to develop it in Django, but I have not found any documentation or specification in Django. Here are my requirements: Register/Login input ...
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1answer
23 views

Linking 3 Validator nodes - Javascript SDK

I'm attempting to ling 3 validator nodes - with the objective of becoming a Full Validator. I'm performing this operation based on the Link Validator requirements as described on https://github.com/...
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1answer
14 views

Can I authorize a user to only perform the 'Manage Data' Operation, and none of the other Operations

Can I authorize a user to only perform the 'Manage Data' Operation, and none of the other Operations listed here: https://developers.stellar.org/docs/start/list-of-operations/ I noticed that the ...
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1answer
44 views

How to check if Stellar's account is valid or exist?

How to check if account does not exist with the Java SDK? and how to know if a public key is valid? I found one way to the first question but is not a clean solution Server server = new Server("...
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1answer
23 views

How to properly set 'Value' in a ManageData operation on Stellar-SDK in Python?

I'm trying to set up a managedata operation. I added the following to my transaction: .append_manage_data_op(data_name="Hello", data_value="World") However, it doesn't go through. ...
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0answers
10 views

ChangeTrust python

I'm trying to ChangeTrust operation using stellar api, that's my codes https://pastebin.com/TSN7Uu1A and i get this error Traceback (most recent call last): File "C:\Users\i9\Desktop\tokend.py&...
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1answer
26 views

How do I add a trust line to a new account

The following code creates an account, except for the part where I try to add a trust line to an asset. It returns a code 400. What am I writing incorrectly regarding the add trust operation? const ...
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0answers
17 views

How to load initial lumen into accounts programmatically

I'm quite new to stellar and have been reading through the documentation, suppose I want to create an app that allows users to send money across borders, as they are signing up I would have to create ...
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1answer
25 views

Using Stellar SDK and account on Ledger

Perhaps what I am trying to do is not possible, but here is what my goal is: I want to transfer XML stored on my ledger device to another account using Stellar SDK. I have the 24 worked mneumonic, was ...
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17 views

How i can develop NTF on Stellar Smart contact?

I want to develop a token smart contract on stellar and NFT on stellar smart contract. Can you pls help to find the process to develop this
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0answers
20 views

Create claimable balance stellar operation, claimant.predicate

How to make sdk.claimant.predicate call with json object.something like this => {"_destination": "destination", "_predicate":{"and":[{"or":[{"...
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0answers
25 views

call to stellar Expert using javascript

So the situation is I am trying to fetch some accounts from https://api.stellar.expert using javascript but my request is returned with 403 error status which means it is rejected but when I hit the ...
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13 views

Remittances SEP-0031

I need help to set up our dev environment for remittances using SEP-0031. Here after loads of research and some tries, To be able to do setup things we tried setting up SEP-0031 Anchor server, which ...
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23 views

SEP-0031 Setting Up Dev Env

I need help to set up our dev environment for remittances using SEP-0031. To be able to do that we tried setting up SEP-0031 Anchor server, which we managed to do successfully, but now we are unable ...
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0answers
19 views

fees from custom tokens on the standalone network Stellar

Is it possible to write off a commission from custom tokens, during transactions, and not from xml, in a standalone network Stellar.
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1answer
106 views

Error: tx_not_supported

It is developing code for sending transaction on the mainnet using stellar-sdk. A tx_not_supported error occurs during submitTransaction(). The network upgrade command(stellar-core http-command '...
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1answer
45 views

Are lumens required for a custom network?

New to Stellar so forgive me if this is not the smartest question, but are real lumens still required on a custom network? I would like to use the stellar blockchain for "transaction" ...
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16 views

SEP 30 Implementation Queries/issues

SEP30 still in draft hence we looking to implement it. while implementing this there are some issues/queries which i need help. 1.Register account (POST /accounts/<address>) : Here the <...
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0answers
5 views

Transfer XLM from Stellar Expert account to Nano Ledger wallet? [duplicate]

I tried using the staking opportunity and ended up transferring XLM from my Nano Ledger wallet to a Stellar Expert account. How do I transfer the XLM back to my Nano Ledger wallet?
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1answer
41 views

Could not connect to stellar testnet using stellar testnet url

I tried getting balance of my stellar account after generating key pairs using the following code: const server = new StellarSdk.Server("https://horizon-testnet.stellar.org"); // the JS SDK ...
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9 views

Using Angular 7 and having cannot read property useTestNetwork

import * as StellarSdk from ‘stellar-sdk/dist/stellar-sdk.min.js’ In my constructor I have: This.stellarServer =new StellarSdk.Server(‘https://horizon-test net.stellar.org’); StellarSdk.Network....
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1answer
70 views

How to set up a anchor on stellar?

As I working on stellar Blockchain, can anyone guide me on how to create an anchor on stellar? and How it will give a withdraw amount in fiat currency & which protocol is it used to convert ...
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1answer
17 views

Continuous Status 504

I have been developing a Multi-sig based project and keeps on getting the 504 status so many times when making transaction. I have checked out the testnet staus of Horizon network as well and it seems ...
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0answers
19 views

SEP-10 Authentication Sample

I've read the documentation about the SEP-10 Authentication Protocol of the network but is kinda overwhelming for me. Do have any available code snippets for the said process able to study thoroughly. ...
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1answer
41 views

can not delete create passive sell offer

in stellar docs (https://developers.stellar.org/docs/start/list-of-operations/#create-passive-sell-offer) Amount of selling being sold. Set to 0 if you want to delete an existing offer. if I set ...
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1answer
40 views

Cannot install via npm for node on Windows

I'm trying to download the stellar SDK for my angular project but the npm install fails.
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0answers
18 views

ClaimClaimableBalance

I written one java code which for ClaimClaimableBalanceOperation but after submitting the transaction it returns nothing, only null even not error code. I have created the accounts and Claim on ...
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0answers
11 views

Document did not contain stellar_address

I'm a Stellar beginner trying to validate an account I just created as follows: val server = FederationServer("https://horizon-testnet.stellar.org") val keyPair = KeyPair.random for { ...
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0answers
6 views

CreateAccount stopped working on GO Client SDK on latest version

I have the following code that used to work: client := n.getClient() // get the account details for master account masterKey := keypair.Master(n.passphrase) ar := horizonclient....
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0answers
15 views

stellar-sdk.js:9457 POST https://horizon-testnet.stellar.org/transactions 400 (Bad Request)

whenever I run this HTML page <!Doctype html> <html> <head> <script src="https://cdnjs.cloudflare.com/ajax/libs/stellar-sdk/0.11.0/stellar-sdk.js"></script>...
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6 views

const pair = StellarSdk.Keypair.random(); ^ ReferenceError: StellarSdk is not defined

when ever i try to run this code // create a completely new and unique pair of keys // see more about KeyPair objects: https://stellar.github.io/js-stellar-sdk/Keypair.html const pair = StellarSdk....
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1answer
57 views

How to add memo to transaction?

I want to create a transaction with a memo, but i keep getting error this.memo.toXDRObject is not a function at TransactionBuilder.build code: let fee = await get_mining_fee(); const txOpts =...
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1answer
48 views

xdrlib.Error: value=-915689825 not in enum ClaimableBalanceIDType, when I try to claim the created balance

so I'm trying to implement claimable_balances example using the python-sdk, I'm able to use append_create_claimable_balance_op and create a claimable balance from the sponsor's account. but I don't ...
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1answer
76 views

Is digital bank with Stellar possible?

Consider a digital bank with multi-currency deposits of crypto tokens (mirroring fiat), token exchange, transactions and digital wallets. The bank should charge configurable transaction fees with the ...
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1answer
35 views

How to allow the trustor(account) to trust the asset I created

I want to make a account (public key) to trust a asset I issue myself. When I run an allowTrust operation, snippet below, I get op_no_trustline error : const issuingAccount = await ...
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1answer
58 views

Error when django-polaris installation

When I try to install django-polaris using the command pip install django-polaris it thrown an error Could not find a version that satisfies the requirement django-polaris (from versions: ) No ...
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1answer
25 views

How can I access the Horizon:Error Response after raising error in code

After an error raised during a Transaction submission with server.submit_transaction() how can I access the corresponding (Horizon Response JSON object) https://developers.stellar.org/api/errors/...
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2answers
58 views

How to prevent programmatic Stellar account creation

I've created an app that includes a Stellar account creation as part of he sign up process. Someone is problematically creating accounts, which keeps draining my distribution account that I use to ...
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1answer
26 views

Wonder why "Custom Asset" [Paymeny] flow, doesn't affect the "Balance" of the "Paying Account" (Sender)?

Hopefuly things are going fine with ya'll. I've created a [Custom Asset] asset_code="FAZ"(Alphanum_4) by set of Accounts (Source,Issuer,Distributor,Consumer) on Stellar Test-Net. Set [...
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1answer
39 views

Do I need to create and back my own USD token, or are there more distributed approaches to bring USD into my Stellar based app?

I'm transitioning my purely XLM based app to having USD as a deposit, exchange or withdrawal option. Once the USD is deposited, I'll issue a USD token to track that value. How should the exchange on ...
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1answer
17 views

Stellar Bifrost JS SDK Getting error says params.recoveryPublicKey is invalid

As per the instructions I modified the example.html file from https://github.com/stellar-deprecated/bifrost-js-sdk I set the params as follows: var params = { network: 'test', horizonURL: '...
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0answers
23 views

406 : "not applicable" when trying to stream DEX offers

I am trying to stream my dex offers, but I keep getting 406 : not applicable To Reproduce // "stellar-sdk": "^5.0.2", let StellarSdk = require('stellar-sdk') let server = new StellarSdk.Server('...
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1answer
52 views

How can I decode the address from XDR envelope

I am trying to write a page to show all the transaction history of an account, I use StellarSdk.xdr.TransactionEnvelope.fromXDR(page.records[0].envelope_xdr, 'base64') to get the transaction envelope, ...
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1answer
83 views

How can I view transactions within a specific date range?

Is there any solution for filtering transactions by date? Scenario: I wanna fetch transactions for a specific account in a specific range of date like 2020/04/04 to 2020/05/04 I looked for it a lot in ...
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0answers
47 views

How do i build a fiat payment processor(Gateway) on stellar

I want to develop a payment gateway that can be integrated into online stores, merchants can seamlessly receive payments directly to their bank account. I want to build all the features on stellar. ...
2
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1answer
128 views

Error tx_bad_seq, is it just about the sequence number?

I have a problem broadcasting a transaction for stellar. It ends and gives me the error tx_bad_seq. The thing is I have checked and rechecked the account sequence number multiple times. I feed in the ...