michielmulders/stellar-js-sdk

Playing with Stellar JavaScript SDK - Stellar Lumens

Stellar Lumens JavaScript SDK

Playing with Stellar JavaScript SDK - Stellar Lumens: ES7 async/await example. This example creates two accounts on the testnet and let's the friendbot give them testnet tokens. Next, we transfer a small amount from one account to another.

Installation

Execute in terminal inside the root of the project: yarn install npm install

Start & Usage

Again in terminal at root: npm start

1. To create the accounts, execute a POST request to http://localhost:4000/.
2. Next, let's tranfer money from accountA to accountB by sending a POST request to http://localhost:4000/payment. Watch your terminal to see the output logs.
3. Retrieve history for accountA by sending GET request to http://localhost:4000/getHistory.

If you have problems, create an issue on this repo. Thanks! :)

stellar-js-sdk's Issues

When I try to create an account with a post request

(node:8840) UnhandledPromiseRejectionWarning
(node:8840) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2)
(node:8840) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

Mapping to the envelope_xdr

     let txDetails = Stellar.xdr.TransactionEnvelope.fromXDR(historyPage.records[1].envelope_xdr, 'base64')
      
      txDetails._attributes.tx._attributes.operations.map(operation => console.log(`Transferred amount: ${operation._attributes.body._value._attributes.amount.low} XLM`))

Having difficulty now .. possibly due to changes in the structure of the envelope_xdr of a transactions.

Do you have a fix for this as now it returns the following error not being able to find property 'tx': -

(node:10663) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'tx' of undefined
at getHistory (/var/www/html/app.js:67:29)
at
at process._tickCallback (internal/process/next_tick.js:188:7)
(node:10663) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:10663) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.