Fix the proxy’s handling of WebSocket connections when subscribing to contract events and node data using the `eth_subscribe` RPC request.
Previously, the client connection that the subscription data was sent to was often in a closed state. It was determined that this connection was the wrong connection to forward the data in the first place. The connection was in fact generally the connection created for the Ethereum service check which was then (correctly and subsequently) closed after it had finished its operation.
The flow of a proxy request handling a WebSocket “eth_subscribe” RPC request is now as follows:
1. A WebSocket RPC request `”eth_subscribe”` is sent from a client to the proxy.
2. Proxy forwards the request to the node by way of a new instance of `RequestManager`.
3. When the node receives an event matching the subscription, it sends the event data back to same socket connection it received the request on (ie the specific instance of `RequestManager`).
4. The `RequestManager` fires the `”data”` event containing the subscription data, and this event is picked up in the proxy.
5. The proxy then forwards the subscription data on to the originating WS client connection.
All other requests (ie non-WS or WS RPC requests that are not `eth_subscribe`) will be serviced to/from the node using a single `RequestManager` instance.
Co-authored-by: Pascal Precht <pascal.precht@gmail.com>
* Revert "fix(@embark/core): set loglevel back to info"
This reverts commit a03ffd56e523945eee4f73358c85e251e5e58f6b.
* Revert "fix(@embark/proxy): Fix contract event subscriptions"
This reverts commit 173d53de2fbf20b6fb24d051b18e18eadc4a21bf.
Fix the proxy’s handling of WebSocket connections when subscribing to contract events and node data using the `eth_subscribe` RPC request.
Previously, the client connection that the subscription data was sent to was often in a closed state. It was determined that this connection was the wrong connection to forward the data in the first place. The connection was in fact generally the connection created for the Ethereum service check which was then (correctly and subsequently) closed after it had finished its operation.
The flow of a proxy request handling a WebSocket “eth_subscribe” RPC request is now as follows:
1. A WebSocket RPC request `”eth_subscribe”` is sent from a client to the proxy.
2. Proxy forwards the request to the node by way of a new instance of `RequestManager`.
3. When the node receives an event matching the subscription, it sends the event data back to same socket connection it received the request on (ie the specific instance of `RequestManager`).
4. The `RequestManager` fires the `”data”` event containing the subscription data, and this event is picked up in the proxy.
5. The proxy then forwards the subscription data on to the originating WS client connection.
All other requests (ie non-WS or WS RPC requests that are not `eth_subscribe`) will be serviced to/from the node using a single `RequestManager` instance.
Co-authored-by: Pascal Precht <pascal.precht@gmail.com>
When making use of the `useBuiltIns: 'usage'` option for @babel/preset-env
(which is the case for all transpiled packages in Embark's monorepo) a package
needs to have both @babel/runtime-corejs3 and core-js@3 specified as
dependencies.
* build(deps): move @types/os-locale from packages/embark to packages/core/i18n
* build(deps) move @types/globule from packages/embark to packages/plugins/coverage
* build(deps): refactor stack/{api,proxy,webserver} deps relative to packages/embark
* build(deps): remove unneeded @types/async dep from packages/stack/test-runner
* build(deps): remove unneeded deps from packages/embark
BREAKING CHANGE:
node: >=10.17.0 <12.0.0
npm: >=6.11.3
yarn: >=1.19.1
node v10.17.0 is the latest in the 10.x series and is still in the Active LTS
lifecycle. Embark is still not compatible with node's 12.x and 13.x
series (because of some dependencies), otherwise it would probably make sense
to bump our minimum supported node version all the way to the most recent 12.x
release.
npm v6.11.3 is the version that's bundled with node v10.17.0.
yarn v1.19.1 is the most recent version as of the time node v10.17.0 was
released.
* fix: fix tests hanging because the console is not started
* fix(@embark/proxy): send back errors correctly to the client
Code originally by @emizzle and fixed by me
* feat(@embark/test-runner): add assert.reverts to test reverts
* fix: make test app actually run its test and not hang
* fix(@embark/proxy): fix listening to contract event in the proxy
* feat(@embark/test-runner): add assertion for events being triggered
* docs(@embark/site): add docs for the new assert functions
* feat(@embark/test-runner): add increaseTime util function to globals
* docs(@embark/site): add docs for increaseTime
* chore(@embark/): move embarkjs packages to their own folder
* chore(@embark/): rename embark-ui folder to cockpit
* chore(@embark/): rename packages already in logical folders to remove embark- prefix
chore(@embark/): rename packages already in logical folders to remove embark- prefix
update package.json files to use correct eslint config
remove core/* from package.json workspaces
