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while running the smart contract uisng polkadot api i get the following error

file:///Users/.../Documents/Study%20related/Learning-JS/ipfs_ink/node_modules/@polkadot/api-contract/base/Contract.js:81
    gasLimit = BN_ZERO,
    ^

TypeError: Cannot read properties of undefined (reading 'gasLimit')
    at ContractPromise.#read (file:///Users/.../Documents/Study%20related/Learning-JS/ipfs_ink/node_modules/@polkadot/api-contract/base/Contract.js:81:5)
    at file:///Users/.../Documents/Study%20related/Learning-JS/ipfs_ink/node_modules/@polkadot/api-contract/base/Contract.js:40:71
    at Object.addMaterialPassport (file:///Users/.../Documents/Study%20related/Learning-JS/ipfs_ink/node_modules/@polkadot/api-contract/base/Contract.js:14:57)
    at main (file:///Users/..../Documents/Study%20related/Learning-JS/ipfs_ink/index_1.js:409:78)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)

i tried to give gasLimit in the program as 10000n * 1000000n and later i tried with -1;

but error remains the same. How to solve it

Using the developer node of substrate. Made the contract in Ink and trying to access it using metadata.json

I try to access it using a javascript program with @polkadot/api and @polkadot/api-contract packages.

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  • What versions of the node and api?
    – Nuke
    Commented Nov 27, 2022 at 14:44
  • Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking.
    – Community Bot
    Commented Nov 27, 2022 at 14:45
  • node version is Node v0.20.0-8d76d04faca. Api @polkadot/api is latest. That is 9.9.1
    – Stanly Wilson
    Commented Nov 27, 2022 at 21:12
  • using the developer node of substrate. Made teh contract in Ink and trying to access it using metadata.json
    – Stanly Wilson
    Commented Nov 27, 2022 at 21:15

1 Answer 1

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You can estimate gas consumption by doing a query first and then passing the value in your tx

Have a look at this doc about how to use polkadotjs for WASM smart-contracts

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