In the RN, api.query.xxx, api.tx.xxx, undefined is not a object.

[0xthreebody]

nodeJs console.log(api); :

api:---- ApiPromise {
  _eventemitter: EventEmitter { _events: { error: [EE] }, _eventsCount: 1 },
  _extrinsics:
   { timestamp: { set: [Function] },
     consensus:
      { reportMisbehavior: [Function],
        noteOffline: [Function],
        remark: [Function],
        setHeapPages: [Function],
        setCode: [Function],
        setStorage: [Function] },
     balances: { transfer: [Function], setBalance: [Function] },
     session:
      { setKey: [Function],
        setLength: [Function],
        forceNewSession: [Function] },
     staking:
      { stake: [Function],
        unstake: [Function],
        nominate: [Function],
        unnominate: [Function],
        registerPreferences: [Function],
        setSessionsPerEra: [Function],
        setBondingDuration: [Function],
        setValidatorCount: [Function],
        forceNewEra: [Function],
        setOfflineSlashGrace: [Function] },
     democracy:
      { propose: [Function],
        second: [Function],
        vote: [Function],
        startReferendum: [Function],
        cancelReferendum: [Function],
        cancelQueued: [Function] },
     council:
      { setApprovals: [Function],
        reapInactiveVoter: [Function],
        retractVoter: [Function],
        submitCandidacy: [Function],
        presentWinner: [Function],
        setDesiredSeats: [Function],
        removeMember: [Function],
        setPresentationDuration: [Function],
        setTermDuration: [Function] },
     councilVoting:
      { propose: [Function],
        vote: [Function],
        veto: [Function],
        setCooloffPeriod: [Function],
        setVotingPeriod: [Function] },
     councilMotions: { propose: [Function], vote: [Function] },
     grandpa: { reportMisbehavior: [Function] },
     treasury:
      { proposeSpend: [Function],
        setPot: [Function],
        configure: [Function],
        rejectProposal: [Function],
        approveProposal: [Function] },
     contract: { call: [Function], create: [Function] },
     upgradeKey: { upgrade: [Function], setKey: [Function] },
     sudo: { sudo: [Function], setKey: [Function] } },
  _genesisHash:
 ... ...

It's complete.

But the RN console.log(api); :

01-01 16:48:57.505  3704  3735 I ReactNativeJS: 'api:-------', { _eventemitter: 
01-01 16:48:57.505  3704  3735 I ReactNativeJS:    { _events: { error: { fn: [Function], context: [Circular], once: true } },
01-01 16:48:57.505  3704  3735 I ReactNativeJS:      _eventsCount: 1 },
01-01 16:48:57.505  3704  3735 I ReactNativeJS:   _extrinsics: {},
01-01 16:48:57.505  3704  3735 I ReactNativeJS:   _genesisHash: {},
01-01 16:48:57.505  3704  3735 I ReactNativeJS:   _query: 
01-01 16:48:57.505  3704  3735 I ReactNativeJS:    { substrate: 
01-01 16:48:57.505  3704  3735 I ReactNativeJS:       { code: 
01-01 16:48:57.505  3704  3735 I ReactNativeJS:          { [Function: decorated]
01-01 16:48:57.505  3704  3735 I ReactNativeJS:            at: [Function],
01-01 16:48:57.505  3704  3735 I ReactNativeJS:            meta: 
01-01 16:48:57.505  3704  3735 I ReactNativeJS:             { documentation: 
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                [ { '0': 'W',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '1': 'a',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '2': 's',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '3': 'm',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '4': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '5': 'c',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '6': 'o',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '7': 'd',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '8': 'e',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '9': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '10': 'o',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '11': 'f',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '12': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '13': 't',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '14': 'h',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '15': 'e',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '16': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '17': 'r',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '18': 'u',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '19': 'n',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '20': 't',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '21': 'i',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '22': 'm',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '23': 'e',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '24': '.' },
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                  _Type: [Function: Text] ],
01-01 16:48:57.505  3704  3735 I ReactNativeJS:               modifier: { raw: 0, _enum: [ 'None', 'Default', 'Required' ] },
01-01 16:48:57.505  3704  3735 I ReactNativeJS:               type: 
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                { raw: 
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                   { '0': 'B',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                     '1': 'y',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                     '2': 't',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                     '3': 'e',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                     '4': 's',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                     _originalLength: 6 },
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                  _def: 
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                   { Type: [Function: Type],
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                     'StorageFunctionType$Map': [Function: StorageFunctionType$Map] },
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                  _index: 0,
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                  _indexes: [ 0, 1 ] },
01-01 16:48:57.505  3704  3735 I ReactNativeJS:               toJSON: [Function: toJSON] },
01-01 16:48:57.505  3704  3735 I ReactNativeJS:            method: 'code',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:            section: 'substrate',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:            toJSON: [Function] },
01-01 16:48:57.505  3704  3735 I ReactNativeJS:         heapPages: 
01-01 16:48:57.505  3704  3735 I ReactNativeJS:          { [Function: decorated]
01-01 16:48:57.505  3704  3735 I ReactNativeJS:            at: [Function],
01-01 16:48:57.505  3704  3735 I ReactNativeJS:            meta: 
01-01 16:48:57.505  3704  3735 I ReactNativeJS:             { documentation: 
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                [ { '0': 'N',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '1': 'u',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '2': 'm',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '3': 'b',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '4': 'e',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '5': 'r',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '6': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '7': 'o',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '8': 'f',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '9': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '10': 'w',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '11': 'a',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '12': 's',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '13': 'm',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '14': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '15': 'l',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '16': 'i',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '17': 'n',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '18': 'e',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '19': 'a',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '20': 'r',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '21': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '22': 'm',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '23': 'e',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '24': 'm',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '25': 'o',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '26': 'r',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '27': 'y',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '28': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '29': 'p',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '30': 'a',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '31': 'g',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '32': 'e',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '33': 's',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '34': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '35': 'r',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '36': 'e',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '37': 'q',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '38': 'u',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '39': 'i',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '40': 'r',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '41': 'e',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '42': 'd',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '43': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '44': 'f',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '45': 'o',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '46': 'r',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '47': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '48': 'e',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '49': 'x',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '50': 'e',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '51': 'c',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '52': 'u',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '53': 't',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '54': 'i',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '55': 'o',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '56': 'n',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '57': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '58': 'o',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '59': 'f',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '60': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '61': 't',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '62': 'h',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '63': 'e',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '64': ' ',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '65': 'r',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '66': 'u',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '67': 'n',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '68': 't',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '69': 'i',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '70': 'm',
01-01 16:48:57.505  3704  3735 I ReactNativeJS:                    '7

It‘s incomplete, so.. such as api.query.xxxx, api.extrinsics, api.tx, and more, can't to be working.

[jacogr]

Only on Android. I think this is the metadata parsing going wrong, quite possibly related to the polyfill for u8a to string which is used in this environment.

[jacogr]

Can you just double check that the API versions dor the desktop and RN match up as well? (There has been a breaking metadata change at the end of last year, so if the node is recent, just need to make sure the API has support for it)

[0xthreebody]

@jacogr I tested the RN @polkadot/api version: 0.35.19; // have the same issue.
the NodeJs @polkadot/api version is: 0.35.19; // It's working ok. (got the Alice account balance.)
the substrate node version is : version 0.9.1-b98d3b87-x86_64-linux-gnu, (Commits on Dec 29, 2018);

[jacogr]

Brilliant, thanks. Ok, I will take a look into the decoding then, somewhere the decoding polyfill (TextDecoder) is not playing along would be my guess.

[0xthreebody]

Does the IOS running the api.query.balances.freebalance() is ok? Not have this issue?

[jacogr]

On iOS only tested subscribe on new head and the extracting the block. I will extend that example with more. (It could still be an issue, untested as you suggested so I just don’t know - however it is much saner with encoders and Uint8Array, so may be fine)

[jacogr]

The above is with the RN sample in https://github.com/jacogr/pjs-rn-rncli updated to also display balances. So it really seems to point to (another) Android-specific issue.

Additionally, have checked the TextEncoder/TextDecoder polyfills (by only using them) and it does the correct thing, so it does not point to that area either. So will have to do a bit more digging, somewhere in the Uint8Array handling Android is not too happy.

[0xthreebody]

https://www.npmjs.com/package/jsc-android

[jacogr]

For future reference - the current JSC version inside RN Android is from 2014, so areas like Uint8Array is not supported. (For iOS the on-device JSC is used, so any recent 10.x+ is ok)

The RN team is looking to upgrade to track actual recent versions, for now installing the above package and removing the (not-quite-working Uint8Array polyfills) does the trick. (I need to update my sample repo to reflect that) Hopefully the issue will be addressed in a new RN update soon.

[polkadot-js-bot]

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