I'm developing Dapp on NEAR protocol.

And I want to cross call method.

I'm writing FT contract's storage_balance_of() method before call ross call method.
But Unhandled Rejection (Error): [-32700] occured.

What are the possible causes and countermeasures?

Unhandled Rejection (Error): [-32700] Parse error: Failed parsing args: missing field `account_id`

frontend source code is here.

/**
 * get storage balance of account id function
 */
export async function storage_balance_of(account_id) {  
  let balance = await window.ftContract.storage_balance_of({
    account_id: account_id,
  });
  return balance;
}

Why does the implementation need to fail instead of returning 0?

If you write a contract that checks balance of a user, you now need to handle 2 cases. Does the response failed or returned a value. Instead of always succeed and rerturn.

via km1tz on Discord:

"Error is thrown in build time inside near-sdk-core package."

Error Message

ERROR TS2304: Cannot find name 'encode'.
       this.setBytes(key, encode<T>(value));
 in ~lib/near-sdk-core/storage.ts(158,26)

ERROR TS2304: Cannot find name 'decode'.
     return decode<T>(bytes);
 in ~lib/near-sdk-core/util.ts(46,12)

"While inspecting further, I can see that encode and decode functions are defined inside near-sdk-core\assembly\as_types.d.ts and cannot figure out where is the problem. I've tried updating near-sdk-core and typescript compiler to latest version to latest version but it did not make any difference."

Replicated Locally

yarn build:as
yarn run v1.22.5
$ ./contracts/assemblyscript/build.js

compiling contract [ nep21-basic/main.ts ] to [ out/nep21-basic-as.wasm ]
 asconfig.js is deprecated use `asb`to build files.  NOTE: output now in ./build/release/ 
asc /Users/jlwaugh/Desktop/FT/contracts/assemblyscript/nep21-basic/main.ts -O3z --debug --measure --runPasses inlining-optimizing,dce --optimizeLevel 3 --shrinkLevel 3 --target release --binaryFile build/release/main.wasm
ERROR TS2304: Cannot find name 'encode'.

       this.setBytes(key, encode<T>(value));
                          ~~~~~~
 in ~lib/near-sdk-core/storage.ts(158,26)

ERROR TS2304: Cannot find name 'decode'.

     return decode<T>(bytes);
            ~~~~~~
 in ~lib/near-sdk-core/util.ts(46,12)

/Users/jlwaugh/Desktop/FT/node_modules/near-sdk-bindgen/compiler.js:19
        throw new Error(err);
        ^

Error: Error: 2 compile error(s)
    at cb (/Users/jlwaugh/Desktop/FT/node_modules/near-sdk-bindgen/compiler.js:19:15)
    at Object.main (/Users/jlwaugh/Desktop/FT/node_modules/assemblyscript/cli/asc.js:717:12)
    at compileProject (/Users/jlwaugh/Desktop/FT/node_modules/asbuild/dist/cli.js:191:9)
    at main (/Users/jlwaugh/Desktop/FT/node_modules/asbuild/dist/cli.js:92:9)
    at module.exports.compile (/Users/jlwaugh/Desktop/FT/node_modules/near-sdk-bindgen/compiler.js:42:3)
    at compileContract (/Users/jlwaugh/Desktop/FT/contracts/assemblyscript/build.js:23:3)
    at Array.map (<anonymous>)
    at Object.<anonymous> (/Users/jlwaugh/Desktop/FT/contracts/assemblyscript/build.js:6:16)
    at Module._compile (internal/modules/cjs/loader.js:1015:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1035:10)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

When I use main.ava.js to test FT whit ava, the beforeEach hook always throws failures. Below is the relevant logging, hope someone can help me.

` ✖ beforeEach hook for Can close empty balance account Rejected promise returned by test
✖ beforeEach hook for Simple transfer Rejected promise returned by test
✖ beforeEach hook for Total supply Rejected promise returned by test
✖ beforeEach hook for Can force close non-empty balance account Rejected promise returned by test
✖ 4 tests remaining in tests/main.ava.ts
─
beforeEach hook for Can close empty balance account

Rejected promise returned by test. Reason:

Error (TransactionError) {
message: '{"result":{"receipts_outcome":[{"block_hash":"sqRkmRMXyr9ZntukqEwSbdoqkF83vvctKnHHCcET6NX","id":"EXi5BYRuLAtvgFutnHBFnp3sdWcX5qhSb1UmgyA8WJnz","outcome":{"executor_id":"fungible-token.test.near","gas_burnt":2478387861555,"logs":[],"metadata":{"gas_profile":[{"cost":"CONTRACT_COMPILE_BASE","cost_category":"WASM_HOST_COST","gas_used":"35445963"},{"cost":"CONTRACT_COMPILE_BYTES","cost_category":"WASM_HOST_COST","gas_used":"50290551750"}],"version":1},"receipt_ids":["B7aDDWkf8zF3gAiniFsTFtqArCz9G9XsUfDPvcX7zVCJ"],"status":{"Failure":{"ActionError":{"index":0,"kind":{"FunctionCallError":{"ExecutionError":"Link Error: Error while importing \"env\".\"promise_batch_action_function_call_weight\": unknown import. Expected Function(FunctionType { params: [I64, I64, I64, I64, I64, I64, I64, I64], results: [] })"}}}}},"tokens_burnt":"2478387861555000000000"},"proof":[{"direction":"Left","hash":"ESvfpBxCQGqxmUvfBKwHbAcdKpS349WBky8Hv7fP8i6z"}]},{"block_hash":"BqLFCroAX53xJguskiH9tbPLfqbbzh1Hxsx6MrgvTEzL","id":"B7aDDWkf8zF3gAiniFsTFtqArCz9G9XsUfDPvcX7zVCJ","outcome":{"executor_id":"fungible-token.test.near","gas_burnt":223182562500,"logs":[],"metadata":{"gas_profile":[],"version":1},"receipt_ids":[],"status":{"SuccessValue":""},"tokens_burnt":"0"},"proof":[]}],"status":{"Failure":{"ActionError":{"index":0,"kind":{"FunctionCallError":{"ExecutionError":"Link Error: Error while importing \"env\".\"promise_batch_action_function_call_weight\": unknown import. Expected Function(FunctionType { params: [I64, I64, I64, I64, I64, I64, I64, I64], results: [] })"}}}}},"transaction":{"actions":[{"FunctionCall":{"args":"eyJvd25lcl9pZCI6InRlc3QubmVhciIsInRvdGFsX3N1cHBseSI6IjEwMDAwIn0=","deposit":"0","gas":30000000000000,"method_name":"new_default_meta"}}],"hash":"4oWzC5qB4dsTznq1NFAaHHwRD6fPhVdPoHyKaKBFvVta","nonce":3000001,"public_key":"ed25519:448iYi2H8MehSfcG652X6quoxwdrHAcgtheyutKtVMng","receiver_id":"fungible-token.test.near","signature":"ed25519:iTv4KNxXRSfUajLXP2TNGPGuBSKmSP3bkYeWiET3Zm2cHKLzQC3bVhKREYRnmTs96UADgk6NnFNibw4w1ofiCzF","signer_id":"fungible-token.test.near"},"transaction_outcome":{"block_hash":"sqRkmRMXyr9ZntukqEwSbdoqkF83vvctKnHHCcET6NX","id":"4oWzC5qB4dsTznq1NFAaHHwRD6fPhVdPoHyKaKBFvVta","outcome":{"executor_id":"fungible-token.test.near","gas_burnt":2428061863842,"logs":[],"metadata":{"gas_profile":null,"version":1},"receipt_ids":["EXi5BYRuLAtvgFutnHBFnp3sdWcX5qhSb1UmgyA8WJnz"],"status":{"SuccessReceiptId":"EXi5BYRuLAtvgFutnHBFnp3sdWcX5qhSb1UmgyA8WJnz"},"tokens_burnt":"2428061863842000000000"},"proof":[{"direction":"Right","hash":"76FRpWKRPCoUUxzDV7kBjqtLTNK5iyHoaCMQmy8ZafQ3"}]}},"startMs":1658990180091,"endMs":1658990182129,"config":{"network":"sandbox","rootAccountId":"test.near","rpcAddr":"http://localhost:6360","initialBalance":"100000000000000000000000000","homeDir":"/tmp/sandbox/9dfdc3b0-cc36-48e9-9b1d-d7857eb318bd","port":6360,"rm":false,"refDir":null}}',
}
`

My package.json in workspace:

{ "devDependencies": { "@types/bn.js": "^5.1.0", "ava": "^4.2.0", "ts-node": "^10.8.0", "bn": "^1.0.5", "bn.js": "^5.2.1", "near-workspaces": "^2.0.0" }, "dependencies": { } }

Link: https://github.com/nearprotocol/NEPs/blob/master/specs/Standards/Tokens/FungibleToken.md

So I was following the standard instructions in the readme:

And go the error that you can see down below.

The link to Dev Accounts in the README.md is not working. Seems like the whole functionality is broken.

• wrong token metadata in package.json
  https://github.com/near-examples/FT/blob/master/package.json#L2-L4

• remove simulation
  https://github.com/near-examples/FT/blob/master/package.json#L13

• i think there’s a new version of near-sdk-as coming out soon, do we need dependabot configured?
  https://github.com/near-examples/FT/blob/master/package.json#L22

• missing RS
  https://github.com/near-examples/FT/blob/master/README.md

• missing CI for AS
  https://github.com/near-examples/FT/blob/master/.travis.yml#L13

• wrong Gitpod welcome message
  https://github.com/near-examples/FT/blob/master/.gitpod.yml#L5

• clarification on strangenesses
  https://github.com/near-examples/FT/blob/master/contracts/assemblyscript/nep21-basic/__tests__/main.unit.spec.ts#L11

• half-baked tests
  https://github.com/near-examples/FT/blob/master/contracts/assemblyscript/nep21-basic/__tests__/main.unit.spec.ts#L155-L166

• copy-pasta from NFT needs review
  https://github.com/near-examples/FT/blob/master/contracts/assemblyscript/nep21-basic/README.md

Can we have in the readme an example for querying the balance of an account please?

Also the explorer doesn't support auto-detecting user's FT Tokens (like etherscan) right?

near call $ID new '{"owner_id": "'$ID'", "total_supply": "1000000000000000", "metadata": { "spec": "https://upload.wikimedia.org/wikipedia/commons/thumb/archive/7/76/20110911121639!Lazio_Coat_of_Arms.svg/120px-Lazio_Coat_of_Arms.svg.png", "name": "Vibe Project Tokens", "symbol": "VIBE", "decimals": 8 }}' --accountId $ID

Error formatting a string: Input string was not in a correct format..
At line:1 char:1

• near call $ID new '{"owner_id": "'$ID'", "total_supply": "10000000000 ...

•   + CategoryInfo          : InvalidOperation: ({0}", "total_su...decimals": 8 }}:String) [], RuntimeException
    + FullyQualifiedErrorId : FormatError
  
  

The changes introduced in near/near-sdk-rs#446 made this repo's testing stopped working. Particularly, the simulation testing is not building anymore. There are multiple compiling errors across different files.

Currently the README in the project root has an empty section for Rust. While the tests are a decent step toward informing a user about usage, there are some aspects of the fungible token that are particularly difficult to grasp without being spelled out. For instance, after initializing the contract and sending X fungible tokens to an account, we receive this error:

Error: GuestPanic [Error]: Smart contract panicked: panicked at 'The required attached deposit is 36500000000000000000000, but the given attached deposit is is 0', src/lib.rs:254:13

This is because we need to make sure that state storage doesn't get exploited. Folks have to pay for the storage it will take, essentially. This ticket is for the DevX team to take a first stab at explaining how to use a fungible token, and then tag and pull in @evgenykuzyakov for review.

I believe there are two approaches to fleshing this out:

1. Give instructions on how to use near-shell to build, deploy, initialize, and use the fungible token, demonstrating escrow and expected behavior.
2. Use near-api-js and a simple web interface (like we have with Token Contract AS) where folks can add commands in the developer console of their browser and see the results.

Acceptance Criteria:

• What is generally written above
• Use the unit tests in the contracts in order to determine ways in which we can give example scenarios using near shell. For instance, walk the use through how to create and initialize a fungible token, send directly from Alice to Bob. Then have Charlie be an escrow between the two, incrementing allowance, etc. A user should be able to come to the README and run a few near shell commands and try out sending fungible tokens around.

This project is affected by near/near-sdk-rs#1119

followed the tutorial until the tests. tried to run them

environment: ubuntu 21.04
rust: latest from 4 days ago

  thread 'main' panicked at 'Unable to find libclang: "couldn't find any valid shared libraries matching: ['libclang.so', 'libclang-*.so', 'libclang.so.*', 'libclang-*.so.*'], set the `LIBCLANG_PATH` environment variable to a path where one of these files can be found (invalid: [])"', /home/andrei/.cargo/registry/src/github.com-1ecc6299db9ec823/bindgen-0.54.0/src/lib.rs:1959:31
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...

hi, I tried to run script 'build' or cargo build - returns error
"error: could not find Cargo.toml in ...\FT or any parent directory"

for me it helped to add cargo.toml to main dir.

[profile.release]
codegen-units = 1
opt-level = "z"
lto = true
debug = false
panic = "abort"
overflow-checks = true

[workspace]
members = [
"ft",
"test-contract-defi",
]
exclude = [
"integration-tests"
]