# Send an transaction to deploy contract by predicate

**URL:** <https://forum.fuel.network/t/send-an-transaction-to-deploy-contract-by-predicate/5320>\
**Category:** Sway\
**Created:** [May 20, 2024, 1:58pm UTC](https://forum.fuel.network/t/send-an-transaction-to-deploy-contract-by-predicate/5320 "2024-05-20T13:58:26Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![guimroque](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.fuel.network/guimroque/32/1462_2.png) [@guimroque](https://forum.fuel.network/u/guimroque)\
**Post date:** [May 20, 2024, 1:58pm UTC](https://forum.fuel.network/t/send-an-transaction-to-deploy-contract-by-predicate/5320/1 "2024-05-20T13:58:26Z")

</div>

Hello, in the last few days I have been trying to carry out a transaction that deploys a contract written in sway, using a predicate.  
This predicate checks the transaction’s subscribers (multsig).

For more details check the [code](https://github.com/infinitybase/bako-safe/tree/feat/deploy-contract)  
On folder `packages/sway`

I have been having problems checking these signatures within the predicate, as an error is returned to me, stating:

> ClientError: PredicateVerificationFailed(PanicInstruction(PanicInstruction { reason: ContractInstructionNotAllowed, instruction: RVRT { value: 0x0 } (bytes: 36 00 00 00) })): {“response”:{“data”:null,“errors”:[{“message”:“PredicateVerificationFailed(PanicInstruction(PanicInstruction { reason: ContractInstructionNotAllowed, instruction: RVRT { value: 0x0 } (bytes: 36 00 00 00) }))”,“locations”:[{“line”:2,“column”:3}],“path”:[“submit”]}],“status”:200,“headers”:{}},“request”:{“query”:“mutation submit($encodedTransaction: HexString!) {\n submit(tx: $encodedTransaction) {\n id\n }\n}”

These are the details of the tx that is about to be sent:

> **Summary**
>
> ```auto
> {
> type: 1,
> policyTypes: 9,
> inputs: [
> {
> type: 0,
> txID: '0x793438ce4a3238001179f36658a73e07a8a2310a8a1b71498fc37855a98d2d1b',
> outputIndex: 0,
> owner: '0xb352367bdc8f8d93b557fcd5ccb959ace0be6d125afad8129c0b71c91a2565ad',
> amount: <BN: 0x5f5e100>,
> assetId: '0x0000000000000000000000000000000000000000000000000000000000000000',
> txPointer: [Object],
> witnessIndex: 2,
> maturity: 0,
> predicateGasUsed: <BN: 0x0>,
> predicateLength: 6016,
> predicateDataLength: 0,
> predicate: <hex/>
> predicateData: '0x'
> }
> ],
> outputs: [
> {
> type: 4,
> contractId: '0x7d430de56abdcfe77e8cc84f79a58bb31e59ed36f0c31953daefbe5c212b622a',
> stateRoot: '0x0000000000000000000000000000000000000000000000000000000000000000'
> },
> {
> type: 2,
> to: '0xb352367bdc8f8d93b557fcd5ccb959ace0be6d125afad8129c0b71c91a2565ad',
> amount: <BN: 0x0>,
> assetId: '0x0000000000000000000000000000000000000000000000000000000000000000'
> }
> ],
> policies: [{ data: <BN: 0x1>, type: 1 }, { data: <BN: 0x2710>, type: 8 }],
> witnesses: [
> {
> data: '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',
> dataLength: 2356
> },
> {
> data: '0x64e651b10a50d8180297f13b56173458f8a068c1a91996abc0aa3676e5e3d6b847bbe67afe0dec822a51a5ec1aaefb436db714aaa7842b76236d3a54e912839a',
> dataLength: 64
> },
> {
> data: '0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',
> dataLength: 64
> }
> ],
> inputsCount: 1,
> outputsCount: 2,
> witnessesCount: 3,
> bytecodeLength: 589,
> bytecodeWitnessIndex: 0,
> storageSlotsCount: 0,
> salt: '0xa76e883187520f1c320989a74d0a4f6e98afb452d21f105b8a5b0001a7e561c7',
> storageSlots: []
> }
> 
> ```

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<div class="post-metadata">

**Author:** ![david](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.fuel.network/david/32/32_2.png) [@david](https://forum.fuel.network/u/david)\
**Post date:** [May 20, 2024, 8:02pm UTC](https://forum.fuel.network/t/send-an-transaction-to-deploy-contract-by-predicate/5320/2 "2024-05-20T20:02:17Z")

</div>

The `revert()` function is not allowed within predicates. Reverts emit logs, which is stateful and not allowed within predicates.

You can use `assert()` or just `return false` instead.

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<div class="post-metadata">

**Author:** ![guimroque](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.fuel.network/guimroque/32/1462_2.png) [@guimroque](https://forum.fuel.network/u/guimroque)\
**Post date:** [May 20, 2024, 8:09pm UTC](https://forum.fuel.network/t/send-an-transaction-to-deploy-contract-by-predicate/5320/3 "2024-05-20T20:09:41Z")

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OK, thanks for answering my question.  
But that’s not my problem yet…

If you look at the code link, I’m using the same predicate to send different types of tx:

- sending assets → script type is working
- contract deploy → create type returns this error.

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<div class="post-metadata">

**Author:** ![naz3eh](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.fuel.network/naz3eh/32/2025_2.png) [@naz3eh](https://forum.fuel.network/u/naz3eh)\
**Post date:** [May 22, 2024, 7:53am UTC](https://forum.fuel.network/t/send-an-transaction-to-deploy-contract-by-predicate/5320/4 "2024-05-22T07:53:36Z")

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You cannot use contract “opcodes” in predicates… from a cursory read, I have not found anything suspicious at first… any idea if you are using any of these?  
 ![image](https://us1.discourse-cdn.com/flex022/uploads/fuel/original/2X/d/d75c2aa1a79d431fb651d0ac36ce62d354bf6e46.png).

A suggestion here would be to comment the predicate code until you find the “culprit line”.

We have one issue [here](https://github.com/FuelLabs/sway/issues/5986), to improve these checks inside the compiler

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<div class="post-metadata">

**Author:** ![guimroque](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.fuel.network/guimroque/32/1462_2.png) [@guimroque](https://forum.fuel.network/u/guimroque)\
**Post date:** [May 22, 2024, 5:13pm UTC](https://forum.fuel.network/t/send-an-transaction-to-deploy-contract-by-predicate/5320/5 "2024-05-22T17:13:15Z")

</div>

i dont know…  
probabli the transactions with create type have on of items  
because this formatt normaly used to send just of wallet

on predicate i think no, because send transactions with script type are work

i will debbug more, thanks 🙂

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<div class="post-metadata">

**Author:** ![naz3eh](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.fuel.network/naz3eh/32/2025_2.png) [@naz3eh](https://forum.fuel.network/u/naz3eh)\
**Post date:** [May 23, 2024, 4:20am UTC](https://forum.fuel.network/t/send-an-transaction-to-deploy-contract-by-predicate/5320/6 "2024-05-23T04:20:03Z")

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Yup, pls lmk if you still have issues with that. Happy to help 🙂

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex022/uploads/fuel/original/2X/5/57d5a345cc15a64b636e0d56e042857f8a0e80b1.png) [@system](https://forum.fuel.network/u/system)\
**Post date:** [June 13, 2024, 12:20am UTC](https://forum.fuel.network/t/send-an-transaction-to-deploy-contract-by-predicate/5320/7 "2024-06-13T00:20:38Z")

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