What is the function for FormatTypes.json in ethers v6? #4364

SamarthBagga · 2023-09-14T07:05:17Z

SamarthBagga
Sep 14, 2023

I am new to web3 and learning by following a course from freeCodeCamp but the problem is that the course uses ethers v5.7 and I am adamant on learning to use ethers v6 as I do not want to learn outdated things. So I am running into a lot of errors while trying to follow the course. Sometimes the course uses some functions that have been depreceted or changed in some ways in v6 which gives me problems. Such as this one which i am unable to solve at all-

I want to update the abi in the constants folder of my frontend when the contract is deployed each time this is the code that I am trying to use.

async function updateAbi() {
    const raffle = await ethers.getContract("Raffle")
    fs.writeFileSync(frontEndAbiFile, raffle.interface.format(ethers.utils.FormatTypes.json))
}

But it seems like the FormatTypes function has changed because I am getting this error-

TypeError: Cannot read properties of undefined (reading 'FormatTypes')
    at updateAbi (/home/samarth/web3/hardhat-smartcontract-lottery/deploy/99-update-front-end.js:20:79)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at runNextTicks (node:internal/process/task_queues:65:3)
    at listOnTimeout (node:internal/timers:528:9)
    at processTimers (node:internal/timers:502:7)
    at Object.module.exports [as func] (/home/samarth/web3/hardhat-smartcontract-lottery/deploy/99-update-front-end.js:13:9)
    at DeploymentsManager.executeDeployScripts (/home/samarth/web3/hardhat-smartcontract-lottery/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1211:22)
    at DeploymentsManager.runDeploy (/home/samarth/web3/hardhat-smartcontract-lottery/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1060:5)
    at SimpleTaskDefinition.action (/home/samarth/web3/hardhat-smartcontract-lottery/node_modules/hardhat-deploy/src/index.ts:442:5)
    at Environment._runTaskDefinition (/home/samarth/web3/hardhat-smartcontract-lottery/node_modules/hardhat/src/internal/core/runtime-environment.ts:333:14)
    at DeploymentsManager.executeDeployScripts (/home/samarth/web3/hardhat-smartcontract-lottery/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1214:19)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at runNextTicks (node:internal/process/task_queues:65:3)
    at listOnTimeout (node:internal/timers:528:9)
    at processTimers (node:internal/timers:502:7)
    at DeploymentsManager.runDeploy (/home/samarth/web3/hardhat-smartcontract-lottery/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1060:5)
    at SimpleTaskDefinition.action (/home/samarth/web3/hardhat-smartcontract-lottery/node_modules/hardhat-deploy/src/index.ts:442:5)
    at Environment._runTaskDefinition (/home/samarth/web3/hardhat-smartcontract-lottery/node_modules/hardhat/src/internal/core/runtime-environment.ts:333:14)
    at Environment.run (/home/samarth/web3/hardhat-smartcontract-lottery/node_modules/hardhat/src/internal/core/runtime-environment.ts:166:14)
    at SimpleTaskDefinition.action (/home/samarth/web3/hardhat-smartcontract-lottery/node_modules/hardhat-deploy/src/index.ts:593:32)

I have managed to find the page in the ethers v6 docs( link )for the FormatTypes function but I am unable to implement the same. Could someone help and explain to me how can i implement this funciton to update the abi.json file in the constants folder with the contract ABI in the json format.
Here is a link to my repo-
link to repo
Could someone also guide me of the process I should do the next time i run into an issue in which the course has an ethers v5 specific function and I want the v6 version of it.

ricmoo · 2023-09-14T07:08:13Z

ricmoo
Sep 14, 2023
Maintainer

It doesn't look like your function is using FormatTypes. Can you post the code around the line number mentioned in the error's stack trace?

1 reply

SamarthBagga Sep 14, 2023
Author

@ricmoo I had accidentally added the wrong bit of code, I have added the correct code!

MeisterStein · 2023-12-17T17:17:57Z

MeisterStein
Dec 17, 2023

I also use ethers v6.
Instead of: fs.writeFileSync(frontEndAbiFile, raffle.interface.format(ethers.utils.FormatTypes.json))
I use: fs.writeFileSync(frontEndAbiFile, JSON.stringify(raffle.interface.fragments));

I found this somewhere online, but can't remember where.
At the moment I am trying to make the nextjs part, but I am getting errors when executing a transaction. So unfortunately I cannot say for sure that this is the ultimate fix.

1 reply

Ebenezary Jan 31, 2024

This is helpful.
Thanks

g1nt0ki · 2023-12-28T20:51:10Z

g1nt0ki
Dec 28, 2023

@MeisterStein if you are still facing the issue, try raffle.interface.formatJson()

0 replies

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What is the function for FormatTypes.json in ethers v6? #4364

SamarthBagga Sep 14, 2023

Replies: 3 comments · 2 replies

ricmoo Sep 14, 2023 Maintainer

SamarthBagga Sep 14, 2023 Author

MeisterStein Dec 17, 2023

Ebenezary Jan 31, 2024

g1nt0ki Dec 28, 2023

SamarthBagga
Sep 14, 2023

Replies: 3 comments 2 replies

ricmoo
Sep 14, 2023
Maintainer

SamarthBagga Sep 14, 2023
Author

MeisterStein
Dec 17, 2023

g1nt0ki
Dec 28, 2023