aboutsummaryrefslogtreecommitdiffstats
path: root/packages/subproviders
diff options
context:
space:
mode:
authorLeonid Logvinov <logvinov.leon@gmail.com>2018-02-12 22:40:28 +0800
committerLeonid Logvinov <logvinov.leon@gmail.com>2018-02-15 03:51:26 +0800
commitdbad7d18691e787bfc1c8e63a0e712f652486865 (patch)
tree6e21c6ca3b65d846f50a07c40445cdd6e7223e85 /packages/subproviders
parent18e1c2dea5d3c5387db6f616cd0ebbfe89dc308b (diff)
downloaddexon-sol-tools-dbad7d18691e787bfc1c8e63a0e712f652486865.tar
dexon-sol-tools-dbad7d18691e787bfc1c8e63a0e712f652486865.tar.gz
dexon-sol-tools-dbad7d18691e787bfc1c8e63a0e712f652486865.tar.bz2
dexon-sol-tools-dbad7d18691e787bfc1c8e63a0e712f652486865.tar.lz
dexon-sol-tools-dbad7d18691e787bfc1c8e63a0e712f652486865.tar.xz
dexon-sol-tools-dbad7d18691e787bfc1c8e63a0e712f652486865.tar.zst
dexon-sol-tools-dbad7d18691e787bfc1c8e63a0e712f652486865.zip
Move subproviders from dev-utils to subproviders
Diffstat (limited to 'packages/subproviders')
-rw-r--r--packages/subproviders/CHANGELOG.md4
-rw-r--r--packages/subproviders/src/index.ts2
-rw-r--r--packages/subproviders/src/subproviders/empty_wallet_subprovider.ts27
-rw-r--r--packages/subproviders/src/subproviders/fake_gas_estimate_subprovider.ts34
4 files changed, 67 insertions, 0 deletions
diff --git a/packages/subproviders/CHANGELOG.md b/packages/subproviders/CHANGELOG.md
index f2c028aea..6f1a85099 100644
--- a/packages/subproviders/CHANGELOG.md
+++ b/packages/subproviders/CHANGELOG.md
@@ -1,5 +1,9 @@
# CHANGELOG
+## v0.5.0 - _TBD, 2018_
+
+ * Add EmptyWalletSubprovider and FakeGasEstimateSubprovider (#)
+
## v0.4.1 - _February 9, 2018_
* Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
diff --git a/packages/subproviders/src/index.ts b/packages/subproviders/src/index.ts
index 67d52ee25..4da405ec0 100644
--- a/packages/subproviders/src/index.ts
+++ b/packages/subproviders/src/index.ts
@@ -6,6 +6,8 @@ import {
import { LedgerEthereumClient } from './types';
+export { EmptyWalletSubprovider } from './subproviders/empty_wallet_subprovider';
+export { FakeGasEstimateSubprovider } from './subproviders/fake_gas_estimate_subprovider';
export { InjectedWeb3Subprovider } from './subproviders/injected_web3';
export { RedundantRPCSubprovider } from './subproviders/redundant_rpc';
export { LedgerSubprovider } from './subproviders/ledger';
diff --git a/packages/subproviders/src/subproviders/empty_wallet_subprovider.ts b/packages/subproviders/src/subproviders/empty_wallet_subprovider.ts
new file mode 100644
index 000000000..8c1fdfdb2
--- /dev/null
+++ b/packages/subproviders/src/subproviders/empty_wallet_subprovider.ts
@@ -0,0 +1,27 @@
+import { JSONRPCPayload } from '@0xproject/types';
+
+/*
+ * This class implements the web3-provider-engine subprovider interface and returns
+ * that the provider has no addresses when queried.
+ * Source: https://github.com/MetaMask/provider-engine/blob/master/subproviders/subprovider.js
+ */
+export class EmptyWalletSubprovider {
+ // This method needs to be here to satisfy the interface but linter wants it to be static.
+ // tslint:disable-next-line:prefer-function-over-method
+ public handleRequest(payload: JSONRPCPayload, next: () => void, end: (err: Error | null, result: any) => void) {
+ switch (payload.method) {
+ case 'eth_accounts':
+ end(null, []);
+ return;
+
+ default:
+ next();
+ return;
+ }
+ }
+ // Required to implement this method despite not needing it for this subprovider
+ // tslint:disable-next-line:prefer-function-over-method
+ public setEngine(engine: any) {
+ // noop
+ }
+}
diff --git a/packages/subproviders/src/subproviders/fake_gas_estimate_subprovider.ts b/packages/subproviders/src/subproviders/fake_gas_estimate_subprovider.ts
new file mode 100644
index 000000000..b455a0ed7
--- /dev/null
+++ b/packages/subproviders/src/subproviders/fake_gas_estimate_subprovider.ts
@@ -0,0 +1,34 @@
+import { JSONRPCPayload } from '@0xproject/types';
+
+/*
+ * This class implements the web3-provider-engine subprovider interface and returns
+ * the constant gas estimate when queried.
+ * HACK: We need this so that our tests don't use testrpc gas estimation which sometimes kills the node.
+ * Source: https://github.com/trufflesuite/ganache-cli/issues/417
+ * Source: https://github.com/trufflesuite/ganache-cli/issues/437
+ * Source: https://github.com/MetaMask/provider-engine/blob/master/subproviders/subprovider.js
+ */
+export class FakeGasEstimateSubprovider {
+ private _constantGasAmount: number;
+ constructor(constantGasAmount: number) {
+ this._constantGasAmount = constantGasAmount;
+ }
+ // This method needs to be here to satisfy the interface but linter wants it to be static.
+ // tslint:disable-next-line:prefer-function-over-method
+ public handleRequest(payload: JSONRPCPayload, next: () => void, end: (err: Error | null, result: any) => void) {
+ switch (payload.method) {
+ case 'eth_estimateGas':
+ end(null, this._constantGasAmount);
+ return;
+
+ default:
+ next();
+ return;
+ }
+ }
+ // Required to implement this method despite not needing it for this subprovider
+ // tslint:disable-next-line:prefer-function-over-method
+ public setEngine(engine: any) {
+ // noop
+ }
+}