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https://issues.apache.org/jira/browse/TINKERPOP-2285?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16914326#comment-16914326
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Mark Arciaga commented on TINKERPOP-2285:
-----------------------------------------
Thanks for the thoughtful responses. My guess is that the AWS responses adhere
to their own standards, which may prove difficult to resolve in this case, so
thanks for getting in touch with them. I believe I will do the same. Please let
us know what they say!
> Error object is unreachable
> ---------------------------
>
> Key: TINKERPOP-2285
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2285
> Project: TinkerPop
> Issue Type: Bug
> Components: javascript
> Affects Versions: 3.3.8
> Reporter: Teonna Zaragoza
> Priority: Major
>
> In our currently application(React, node.js, Express), we are creating an
> edge between two existing nodes.
> {code:java}
> async function somethingThatQueriesGremlin() {
> try {
> const result = await theActualQuery();
> // ...
> } catch (error) {
> console.log(error); // I expect error to be useful and not a stringified
> instance of Error wrapped in an Error.
> }
> } {code}
> If the edge already exists, the error that is logged on the server is
> {code:javascript}
> Error: Server error:
> {"requestId":"e44b2c9a-9542-461b-9d1b-bc3db3f869f4","code":"ConstraintViolationException","detailedMessage":"Edge
> with id already exists: TEST|77886.105.1:NO_SIZE:0->WVN"} (499)
> at Connection._handleMessage
> (.../node_modules/gremlin/lib/driver/connection.js:265:9)
> at WebSocket._ws.on
> (.../node_modules/gremlin/lib/driver/connection.js:128:43)
> at emitOne (events.js:116:13)
> at WebSocket.emit (events.js:211:7)
> at Receiver._receiver.onmessage
> (.../node_modules/ws/lib/WebSocket.js:141:47)
> at Receiver.dataMessage (.../node_modules/ws/lib/Receiver.js:380:14)
> at Receiver.getData (.../node_modules/ws/lib/Receiver.js:330:12)
> at Receiver.startLoop (.../node_modules/ws/lib/Receiver.js:165:16)
> at Receiver.add (.../node_modules/ws/lib/Receiver.js:139:10)
> at TLSSocket._ultron.on (.../node_modules/ws/lib/WebSocket.js:138:22)
> at emitOne (events.js:116:13)
> at TLSSocket.emit (events.js:211:7)
> at addChunk (_stream_readable.js:263:12)
> at readableAddChunk (_stream_readable.js:250:11)
> at TLSSocket.Readable.push (_stream_readable.js:208:10)
> at TLSWrap.onread (net.js:607:20)
> object
> {code}
> The problem is that the actual error object with reachable keys is a string
> within another error object. The stringified object is reachable via
> err.message.
> The error comes from the driver in connection.js line 265
> {code:java}
> newError(util.format('Server error: %s
> (%d)',response.status.message,response.status.code)));
> {code}
>
>
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