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June 21, 2018 06:59
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Demo of web3.shh.clearSubscriptions Bug
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| <!doctype html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>web3.shh.clearSubscriptions bug demo</title> | |
| </head> | |
| <body> | |
| <script src="https://rawgit.com/ethereum/web3.js/1.0/dist/web3.min.js"></script> | |
| <script> | |
| const web3 = new Web3('ws://localhost:8546'); | |
| const TOPIC = '0x00627579'; | |
| console.group('TEST CASE 1: Calling web3.shh.clearSubscriptions() without active subscription'); | |
| try { | |
| console.info('Expectation: Completes without error'); | |
| console.info('Actual outcome: Failed with TypeError'); | |
| console.info('Clearning subscriptions...'); | |
| web3.shh.clearSubscriptions(); | |
| } catch(err) { | |
| console.error(err); | |
| } | |
| console.groupEnd(); | |
| console.group('TEST CASE 2: Calling web3.shh.clearSubscriptions() with an active subscription'); | |
| const mainAsync = async () => { | |
| console.info('Expectation: Completes without error'); | |
| console.info('Actual outcome: Failed with TypeError\n'); | |
| const symKeyID = await web3.shh.generateSymKeyFromPassword('secure_password'); | |
| console.log(`Subscribing to topic ${TOPIC}`); | |
| web3.shh.subscribe('messages', { | |
| symKeyID: symKeyID, | |
| topic: [TOPIC] | |
| }, function(err, result, sub) { | |
| console.log('We got a message! Clearing the active subcription now...'); | |
| console.warn('Calling web3.shh.clearSubscriptions() with an active subscription will also fail!'); | |
| web3.shh.clearSubscriptions(); | |
| }); | |
| console.log(`Subscribed to topic ${TOPIC}`); | |
| console.log(`Posting message to topic ${TOPIC}`); | |
| web3.shh.post({ | |
| symKeyID, | |
| ttl: 60, | |
| topic: TOPIC, | |
| payload: 'hi' | |
| }, function(err, result) { | |
| if (err) { | |
| console.error(err); | |
| return; | |
| } | |
| }) | |
| } | |
| console.groupEnd(); | |
| mainAsync().catch(console.error); | |
| </script> | |
| </body> | |
| </html> |
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See here for workaround.