Questions tagged [stellar-sdk]

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

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Stellar wallet balance at a point of time

Is there any way to find the balance of a stellar wallet at a point in time using any of the Horizon API? In Ethereum, we can pass the account along with the block number to get the balance at that ...
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How to decode stellar XDR (ruby)

I want to get operation_id by decoding envelope_xdr. I found the way to decode XDR by using golang. How to decode stellar XDR But, I couldn't find one by using ruby. Can anyone help me to solve this?
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AM TRYING TO MAKE A PATH PAYMENT OF XLM TO USD IN PYTHON BUT GETTING THE ERROR json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

def sendPathPayment(): try: _json = request.json _amount = _json['amount'] _senderPubKey = _json['sender_pubKey'] _senderSecKey = _json['sender_secKey'] _senderAssetCode = _json['sender_assetCode'] ...
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How can I check the balance for each account using node.js and mongo.db

Can I use MongoDB's public key to check the account's balance? SignUp function module. exports.signUp= async(req,res)=>{ const {pseudo,email,password}= req.body try{ const pair ...
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How to get missing slot/ledger?

I am trying to get missed ledger/slot envelopes. There is message GET_SCP_STATE. But after subscribing I am not receiving the message about new envelopes. Do you have any suggestion how to get last ...
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What is the Trustor?

I am struggling with the Terminolgy. allowTrust := txnbuild.SetTrustLineFlags{ Trustor: Whos Address?, Asset: issuedAsset, SetFlags: []txnbuild.TrustLineFlag{txnbuild....
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Conver USD => GBP in stellar [duplicate]

I am working on Fintech startup company. I need to convert traditional fiat-currency exchange system to stellar-blockchain based system. I can take a use case transfer from GBP to USD What do I need ...
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Issues creating Muxed Account - dotnet-stellar-sdk

I hope this is the best place to find answers to this issue. I have attempted many times to create muxed accounts using this SDK (dotnet-stellar-sdk), but I continue to have this problem where any ...
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I Working around Stellar Multisig and I am getting

at Function.setOptions (C:\Users\user\Desktop\multisig\node_modules\stellar-base\lib\operations\set_options.js:137:13) at setMultisigOnEmekaAccount (C:\Users\user\Desktop\multisig\multisig.js:30:...
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Django Polaris not processing pending deposits

I have implemented the integrations: register_integrations( deposit=MyDepositIntegration(), withdrawal=MyWithdrawalIntegration(), fee=fee_integration, ...
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Please i need derailed help on SEP24 setup , a tutorial would be great

I'm not an expert in python so setting up my Anchor SEP 24 server via polaris is giving me issues, just a suggestion can we have the stacks for integration changed to have more language options. ...
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Transaction not supported

I configured a private Stellar blockchain network composed of 2 nodes. When I try to create an account on this private blockchain I get the following error: stellar_sdk.exceptions.BadRequestError: { ...
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How to create Stellar Muxed accounts using java-stellar-sdk

How to create Stellar Muxed accounts using java-stellar-sdk-0.31.0.jar, I want to create Muxed account with id 1 from custodian account GBMHTX6VOIIS4FNQSMTSWVHCMVCJXTTNXTIY3SBXI5K4NLDCTV5CJLZE ...
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Getting op_cannot_claim error code, can't claim claimable balance

I'm getting an op_cannot_claim error code, when trying to claim claimable balance. I've checked the docs, they don't mention this error code at all. let account = await server.loadAccount(pairA....
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Understanding behavior of stellar API result codes

I am facing a challenge with stellar APIs while transferring funds from one wallet to another. The API fails with status 400 and the result code is 'op_no_trust'. I can verify that the destination ...
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sep-24 deposit in polaris 2.1.0 not work (polaris 1.6.4 worked)

I tried to use Polaris 2.1.0 deployed in kubernetes. sep-24 deposit did not work in demo-wallet using I created test token (when I used Polaris 1.6.4, it worked). When I tried sep-24 deposit, Error ...
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If Stellar key pairs are Ed25519, does this mean that minisign keys can be as Stellar keys?

Can I use minisign keys, which are ed25519, as unique Stellar keypairs? https://stellar.github.io/js-stellar-sdk/Keypair.html https://jedisct1.github.io/minisign/
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How to reserve a transaction sequence number?

I have a multisig account and need to initiate a transaction for set option operation. So prepared a transaction which will be expired in 7 days and within this time all (3 out 3 signers) has to sign ...
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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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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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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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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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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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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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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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157 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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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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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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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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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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1 answer
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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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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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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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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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1 answer
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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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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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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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1 answer
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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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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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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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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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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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1 answer
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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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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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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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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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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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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('...
3 votes
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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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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 ...