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-rw-r--r--app/scripts/controllers/transactions/index.js15
1 files changed, 15 insertions, 0 deletions
diff --git a/app/scripts/controllers/transactions/index.js b/app/scripts/controllers/transactions/index.js
index 541f1db73..3886db104 100644
--- a/app/scripts/controllers/transactions/index.js
+++ b/app/scripts/controllers/transactions/index.js
@@ -112,6 +112,21 @@ class TransactionController extends EventEmitter {
}
/**
+ Check if a txMeta in the list with the same nonce has been confirmed in a block
+ if the txParams dont have a nonce will return false
+ @returns {boolean} whether the nonce has been used in a transaction confirmed in a block
+ @param {object} txMeta - the txMeta object
+ */
+ async isNonceTaken (txMeta) {
+ const { from, nonce } = txMeta.txParams
+ if ('nonce' in txMeta.txParams) {
+ const sameNonceTxList = this.txStateManager.getFilteredTxList({from, nonce, status: 'confirmed'})
+ return (sameNonceTxList.length >= 1)
+ }
+ return false
+ }
+
+ /**
add a new unapproved transaction to the pipeline
@returns {Promise<string>} the hash of the transaction after being submitted to the network