Added error code detection for sendTransaction.

src.ts/providers/etherscan-provider.ts

@@ -151,8 +151,21 @@ export class EtherscanProvider extends Provider{
             case 'sendTransaction':
                 url += '/api?module=proxy&action=eth_sendRawTransaction&hex=' + params.signedTransaction;
                 url += apiKey;
-                return fetchJson(url, null, getJsonResult);
-
+                return fetchJson(url, null, getJsonResult).catch((error) => {
+                    // "Insufficient funds. The account you tried to send transaction from does not have enough funds. Required 21464000000000 and got: 0"
+                    if (error.responseText.toLowerCase().indexOf('insufficient funds') >= 0) {
+                        errors.throwError('insufficient funds', errors.INSUFFICIENT_FUNDS, { });
+                    }
+                    // "Transaction with the same hash was already imported."
+                    if (error.responseText.indexOf('same hash was already imported') >= 0) {
+                        errors.throwError('nonce has already been used', errors.NONCE_EXPIRED, { });
+                    }
+                    // "Transaction gas price is too low. There is another transaction with same nonce in the queue. Try increasing the gas price or incrementing the nonce."
+                    if (error.responseText.indexOf('another transaction with same nonce') >= 0) {
+                        errors.throwError('replacement fee too low', errors.REPLACEMENT_UNDERPRICED, { });
+                    }
+                    throw error;
+                });
 
             case 'getBlock':
                 if (params.blockTag) {

src.ts/providers/json-rpc-provider.ts

@@ -111,8 +111,7 @@ export class JsonRpcSigner extends Signer {
         }
 
         return resolveProperties(tx).then((tx) => {
-            tx = JsonRpcProvider.hexlifyTransaction(tx);
-            return this.provider.send('eth_sendTransaction', [ tx ]).then((hash) => {
+            return this.provider.send('eth_sendTransaction', [ JsonRpcProvider.hexlifyTransaction(tx) ]).then((hash) => {
                 return poll(() => {
                     return this.provider.getTransaction(hash).then((tx: TransactionResponse) => {
                         if (tx === null) { return undefined; }
@@ -122,6 +121,24 @@ export class JsonRpcSigner extends Signer {
                     (<any>error).transactionHash = hash;
                     throw error;
                 });
+            }, (error) => {
+                // See: JsonRpcProvider.sendTransaction (@TODO: Expose a ._throwError??)
+                if (error.responseText.indexOf('insufficient funds') >= 0) {
+                    errors.throwError('insufficient funds', errors.INSUFFICIENT_FUNDS, {
+                        transaction: tx
+                    });
+                }
+                if (error.responseText.indexOf('nonce too low') >= 0) {
+                    errors.throwError('nonce has already been used', errors.NONCE_EXPIRED, {
+                        transaction: tx
+                    });
+                }
+                if (error.responseText.indexOf('replacement transaction underpriced') >= 0) {
+                    errors.throwError('replacement fee too low', errors.REPLACEMENT_UNDERPRICED, {
+                        transaction: tx
+                    });
+                }
+                throw error;
             });
         });
     }
@@ -235,7 +252,21 @@ export class JsonRpcProvider extends Provider {
                 return this.send('eth_getStorageAt', [ getLowerCase(params.address), params.position, params.blockTag ]);
 
             case 'sendTransaction':
-                return this.send('eth_sendRawTransaction', [ params.signedTransaction ]);
+                return this.send('eth_sendRawTransaction', [ params.signedTransaction ]).catch((error) => {
+                    // "insufficient funds for gas * price + value"
+                    if (error.responseText.indexOf('insufficient funds') > 0) {
+                        errors.throwError('insufficient funds', errors.INSUFFICIENT_FUNDS, { });
+                    }
+                    // "nonce too low"
+                    if (error.responseText.indexOf('nonce too low') > 0) {
+                        errors.throwError('nonce has already been used', errors.NONCE_EXPIRED, { });
+                    }
+                    // "replacement transaction underpriced"
+                    if (error.responseText.indexOf('replacement transaction underpriced') > 0) {
+                        errors.throwError('replacement fee too low', errors.REPLACEMENT_UNDERPRICED, { });
+                    }
+                    throw error;
+                });
 
             case 'getBlock':
                 if (params.blockTag) {

src.ts/providers/provider.ts

@@ -836,9 +836,9 @@ export class Provider extends AbstractProvider {
                 return this.perform('sendTransaction', params).then((hash) => {
                     return this._wrapTransaction(parseTransaction(signedTransaction), hash);
                 }, function (error) {
-                    let tx = parseTransaction(signedTransaction);
-                    if (tx.hash) {
-                        (<any>error).transactionHash = tx.hash;
+                    error.transaction = parseTransaction(signedTransaction);
+                    if (error.transaction.hash) {
+                        (<any>error).transactionHash = error.transaction.hash;
                     }
                     throw error;
                 });

src.ts/utils/errors.ts

@@ -20,10 +20,6 @@ export const MISSING_NEW = 'MISSING_NEW';
 //  - reason: The reason (only for EIP848 "Error(string)")
 export const CALL_EXCEPTION = 'CALL_EXCEPTION';
 
-// Response from a server was invalid
-//   - response: The body of the response
-//'BAD_RESPONSE',
-
 // Invalid argument (e.g. value is incompatible with type) to a function:
 //   - arg: The argument name that was invalid
 //   - value: The value of the argument
@@ -44,6 +40,17 @@ export const UNEXPECTED_ARGUMENT = 'UNEXPECTED_ARGUMENT';
 //   - fault: the reason this faulted
 export const NUMERIC_FAULT = 'NUMERIC_FAULT';
 
+// Insufficien funds (< value + gasLimit * gasPrice)
+//   - transaction: the transaction attempted
+export const INSUFFICIENT_FUNDS = 'INSUFFICIENT_FUNDS';
+
+// Nonce has already been used
+//   - transaction: the transaction attempted
+export const NONCE_EXPIRED = 'NONCE_EXPIRED';
+
+// The replacement fee for the transaction is too low
+//   - transaction: the transaction attempted
+export const REPLACEMENT_UNDERPRICED = 'REPLACEMENT_UNDERPRICED';
 
 // Unsupported operation
 //   - operation