WIP: Starknet Snap docs #1509

joaniefromtheblock · 2024-08-28T17:24:21Z

Description

Draft of Starknet Snap docs.

Issue(s) fixed

Fixes #1511
Fixes #1512
Fixes #1513
Fixes #1514
Fixes #1515
Fixes #1516
Fixes #1526

Preview

Preview: https://metamask-docs-git-wip-starknet-snap-metamask-web.vercel.app/wallet/how-to/use-non-evm-networks/starknet/sign-starknet-data/
(If out of date, see the Vercel link at the bottom of the PR activity for the latest preview.)

Checklist

Complete this checklist before merging your PR:

If this PR contains a major change to the documentation content, I have added an entry to the top of the "What's new?" page.
The proposed changes have been reviewed and approved by a member of the documentation team.

vercel · 2024-08-28T17:24:26Z

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Name	Status	Preview	Comments	Updated (UTC)
metamask-docs	✅ Ready (Inspect)	Visit Preview	💬 9 unresolved ✅ 2 resolved	Oct 4, 2024 10:31pm

wallet/how-to/use-non-evm-networks/starknet/index.md

Montoya · 2024-09-06T19:09:24Z

Some notes on connect vs install:

We are moving away from using the term "install" with Snaps. We prefer "add" such as "add to MetaMask."
For the dapp, the primary action to initiate interacting with Starknet accounts is to connect to the Snap, just like a dapp connects with MetaMask to interact with Ethereum accounts. Whether the user has the Starknet Snap installed already is not important. If the user needs to install the Snap, they will be prompted to do so.
- Despite this, we do need to explain that the user can reject the prompt to add the Snap to MetaMask and document what to expect (the response that the dapp will receive if the user rejects the request) and encourage the dapp to do something in that instance, like display a message to the user that they need to add the Snap to MetaMask in order to proceed.
- Also, in terms of working with Starknet specifically, we may need to explain that a user will need to take some steps to set up a Starknet account before they can actually use it with the dapp, so the dapp should thoughtfully design that onboarding flow. Whether the user needs to add the Snap (and thus they will be completely new to Starknet) or they already have it but their account is not funded or deployed, the dapp should handle those scenarios.

wallet/how-to/use-non-evm-networks/starknet/connect-to-starknet.md

wallet/how-to/use-non-evm-networks/starknet/manage-starknet-networks.md

wallet/how-to/use-non-evm-networks/starknet/send-starknet-transactions.md

khanti42

We still need some changes on api commented with "needs check" because the api changed. I will do a separate review for them.

wallet/reference/non-evm-apis/starknet-snap-api.md

khanti42 · 2024-09-16T13:36:50Z

wallet/reference/non-evm-apis/starknet-snap-api.md

+</TabItem>
+</Tabs>
+
+## `starkNet_estimateAccountDeployFee`


needs check

@khanti42 working on this time

khanti42 · 2024-09-16T13:37:00Z

wallet/reference/non-evm-apis/starknet-snap-api.md

+</TabItem>
+</Tabs>
+
+## `starkNet_estimateFee`


needs check

@khanti42 working on this time

wallet/reference/non-evm-apis/starknet-snap-api.md

khanti42 · 2024-09-16T13:52:04Z

wallet/reference/non-evm-apis/starknet-snap-api.md

+
+### Returns
+
+The list of the stored user accounts.


There are two new optional return parameters in the account: upgradeRequired and deployRequired.

User accounts type is as follow :

export type AccContract = { addressSalt: string; publicKey: string; // in hex address: string; // in hex addressIndex: number; derivationPath: string; deployTxnHash: string; // in hex chainId: string; // in hex upgradeRequired?: boolean; // whether the account requires an upgrade to Cairo 1 deployRequired?: boolean; // whether the account requires to be deployed };

@khanti42 I have questions about this one (raised in chat)

@khanti42 i think we dont need to mention this method, as it is a method to return the deployed + stored accounts for a single network, consider some edge case for Cairo Contract, it is better not have any starkNet_getStoredXXXX method mentioned in the page

cc @joaniefromtheblock

khanti42 · 2024-09-16T13:53:26Z

wallet/reference/non-evm-apis/starknet-snap-api.md

+</TabItem>
+</Tabs>
+
+## `starkNet_signMessage`


needs check

@khanti42 working on this time

khanti42 · 2024-09-16T13:53:46Z

wallet/reference/non-evm-apis/starknet-snap-api.md

+</TabItem>
+</Tabs>
+
+## `starkNet_verifyMessage`


needs check

@khanti42 working on this time

alexandratran

Some suggestions on the intro pages.

wallet/how-to/use-non-evm-networks/index.md

wallet/how-to/use-non-evm-networks/starknet/_category_.json

wallet/how-to/use-non-evm-networks/starknet/index.md

wallet/how-to/use-non-evm-networks/starknet/sign-starknet-data.md

wallet/how-to/use-non-evm-networks/starknet/troubleshoot.md

wallet/how-to/use-non-evm-networks/starknet/send-starknet-transactions.md

wallet/how-to/use-non-evm-networks/starknet/sign-starknet-data.md

wallet/how-to/use-non-evm-networks/starknet/create-a-simple-starknet-dapp.md

joaniefromtheblock · 2024-09-30T10:45:23Z

khanti42 · 2024-09-18T10:15:57Z

wallet/reference/non-evm-apis/starknet-snap-api.md

+  "unit": "wei",
+  "includeDeploy": true


Suggested change

"unit": "wei",

"includeDeploy": true

"unit": "wei"

khanti42 · 2024-09-18T10:19:59Z

wallet/reference/non-evm-apis/starknet-snap-api.md

+### Returns
+
+The response from Starknet's `feeder_gateway/estimate_fee` API endpoint.


Suggested change

### Returns

The response from Starknet's `feeder_gateway/estimate_fee` API endpoint.

### Returns

An object with the following properties (where values are originally `bigint` but converted to base-10 `string` format using `.toString(10)`):

- **`suggestedMaxFee`**: `string` - The maximum suggested fee for deploying the contract in wei. This value is originally a `bigint` and is converted to a base-10 `string` using `.toString(10)`, which ensures the number is expressed in decimal format.

- **`overallFee`**: `string` - The overall fee for the deployment transaction in wei. This value is originally a `bigint` and is converted to a base-10 `string` using `.toString(10)`, ensuring it is in decimal format.

- **`gasConsumed`**: `string` - The amount of gas consumed during the transaction. If not available, the default value is `'0'`. This value is originally a `bigint` and is converted to a base-10 `string` using `.toString(10)`.

- **`gasPrice`**: `string` - The gas price used for the transaction in wei. If not available, the default value is `'0'`. This value is originally a `bigint` and is converted to a base-10 `string` using `.toString(10)`.

- **`unit`**: `string` - The unit of the fees and gas values, which is `'wei'`.

khanti42 · 2024-09-18T10:29:04Z

wallet/reference/non-evm-apis/starknet-snap-api.md

+### Parameters
+
+- `contractAddress`: `string` - Address of the target contract.
+- `contractFuncName`: `string` - Target function name of the contract.
+- `contractCallData`: `string` - (Optional) Call data for the target function with `,` as a separator.
+- `senderAddress`: `string` - Address of the sender.
+- `chainId`: `string` - (Optional) ID of the target Starknet network.
+  The default is the Starknet Goerli testnet.
+
+### Returns
+
+The response from Starknet's `feeder_gateway/estimate_fee` API endpoint.


Suggested change

### Parameters

- `contractAddress`: `string` - Address of the target contract.

- `contractFuncName`: `string` - Target function name of the contract.

- `contractCallData`: `string` - (Optional) Call data for the target function with `,` as a separator.

- `senderAddress`: `string` - Address of the sender.

- `chainId`: `string` - (Optional) ID of the target Starknet network.

The default is the Starknet Goerli testnet.

### Returns

The response from Starknet's `feeder_gateway/estimate_fee` API endpoint.

### Parameters

- `address`: `string` - The account address from which the transaction is being made.

- `invocations`: `array` - The invocations to estimate the fee for. Each invocation represents a contract call. Reference: [Invocations](https://starknetjs.com/docs/API/namespaces/types#invocations).

- `chainId`: `string` - The chain ID of the target Starknet network. If not provided, the default is the Starknet Goerli testnet.

- `details`: `object` - optional - The universal details associated with the invocations, such as nonce and version. Reference: [EstimateFeeDetails](https://starknetjs.com/docs/API/interfaces/types.EstimateFeeDetails).

### Returns

A promise that resolves to an `EstimateFeeResponse` object, which contains the following properties:

- `suggestedMaxFee`: `string` - The maximum suggested fee for the transaction in wei. This value is originally a `bigint` and is converted to a base-10 `string`.

- `overallFee`: `string` - The overall fee for the transaction in wei. This value is originally a `bigint` and is converted to a base-10 `string`.

- `unit`: `string` - The unit of the fees, typically `'wei'`.

- `includeDeploy`: `boolean` - Whether the transaction includes an account deployment step.

khanti42 · 2024-09-18T10:31:22Z

wallet/reference/non-evm-apis/starknet-snap-api.md

+await window.ethereum.request({
+  method: "wallet_invokeSnap",
+  params: {
+    snapId: "npm:@consensys/starknet-snap",
+    request: {
+      method: "starkNet_estimateFee",
+      params: {
+        contractAddress: "0x5B38Da6a701c568545dCfcB03FcB875f56beddC4",
+        contractFuncName: "transfer",
+        contractCallData: "0x456...,0x789...,100",
+        senderAddress: "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
+        chainId: "0x1"
+      },
+    },
+  },
+})


Suggested change

await window.ethereum.request({

method: "wallet_invokeSnap",

params: {

snapId: "npm:@consensys/starknet-snap",

request: {

method: "starkNet_estimateFee",

params: {

contractAddress: "0x5B38Da6a701c568545dCfcB03FcB875f56beddC4",

contractFuncName: "transfer",

contractCallData: "0x456...,0x789...,100",

senderAddress: "0xb60e8dd61c5d32be8058bb8eb970870f07233155",

chainId: "0x1"

},

},

},

})

const invocations: [

{

type: TransactionType.INVOKE,

payload: {

contractAddress:

'0x00b28a089e7fb83debee4607b6334d687918644796b47d9e9e38ea8213833137',

entrypoint: 'functionName',

calldata: ['1', '1'],

},

},

];

await window.ethereum.request({

method: "wallet_invokeSnap",

params: {

snapId: "npm:@consensys/starknet-snap",

request: {

method: "starkNet_estimateFee",

params: {

invocations,

address: "0xb60e8dd61c5d32be8058bb8eb970870f07233155",

chainId: "0x1",

},

},

},

})

khanti42 · 2024-09-18T10:35:20Z

wallet/reference/non-evm-apis/starknet-snap-api.md

+<TabItem value="Request">
+
+```js
+await window.ethereum.request({


Suggested change

await window.ethereum.request({

const typedDataMessage = {

"types": {

"StarkNetDomain": [

{ "name": "name", "type": "felt" },

{ "name": "version", "type": "felt" },

{ "name": "chainId", "type": "felt" }

],

"Person": [

{ "name": "name", "type": "felt" },

{ "name": "wallet", "type": "felt" }

],

"Mail": [

{ "name": "from", "type": "Person" },

{ "name": "to", "type": "Person" },

{ "name": "contents", "type": "felt" }

]

},

"primaryType": "Mail",

"domain": {

"name": "Starknet Mail",

"version": "1",

"chainId": 1

},

"message": {

"from": {

"name": "Cow",

"wallet": "0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826"

},

"to": {

"name": "Bob",

"wallet": "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB"

},

"contents": "Hello, Bob!"

}

}

await window.ethereum.request({

khanti42 · 2024-09-30T12:28:38Z

wallet/reference/non-evm-apis/starknet-snap-api.md

+await window.ethereum.request({
+  method: "wallet_invokeSnap",
+  params: {
+    snapId: "npm:@consensys/starknet-snap",
+    request: {
+      method: "starkNet_sendTransaction",
+      params: {
+        contractAddress: "0x5B38Da6a701c568545dCfcB03FcB875f56beddC4",
+        contractFuncName: "transfer",
+        contractCallData: "0x456...,0x789...,100",
+        senderAddress: "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
+        maxFee: "1000000000000000",
+        "chainId": "0x534e5f5345504f4c4941"
+      },
+    },
+  },
+})


Suggested change

await window.ethereum.request({

method: "wallet_invokeSnap",

params: {

snapId: "npm:@consensys/starknet-snap",

request: {

method: "starkNet_sendTransaction",

params: {

contractAddress: "0x5B38Da6a701c568545dCfcB03FcB875f56beddC4",

contractFuncName: "transfer",

contractCallData: "0x456...,0x789...,100",

senderAddress: "0xb60e8dd61c5d32be8058bb8eb970870f07233155",

maxFee: "1000000000000000",

"chainId": "0x534e5f5345504f4c4941"

},

},

},

})

await window.ethereum.request({

method: "wallet_invokeSnap",

params: {

snapId: "npm:@consensys/starknet-snap",

request: {

method: "starkNet_executeTxn",

params: {

address: "0xb60e8dd61c5d32be8058bb8eb970870f07233155", // Sender's address

calls: [

{

contractAddress: "0x5B38Da6a701c568545dCfcB03FcB875f56beddC4", // Contract address

entrypoint: "transfer", // Function name

calldata: ["0x456...", "0x789...", "100"], // Function call data

}

],

details: {

maxFee: "1000000000000000", // Optional maximum fee

},

chainId: "0x534e5f5345504f4c4941", // Starknet Sepolia testnet (chain ID)

},

},

},

});

khanti42 · 2024-09-30T12:30:38Z

wallet/how-to/use-non-evm-networks/starknet/index.md

+- Manages wallet connections and Starknet interactions.
+- Provides results in more readable code.
+
+The [`wallet_invokeSnap`](/snaps/reference/wallet-api-for-snaps/#wallet_invokesnap) method:


We can add a bullet point here that the wallet detection following the eip6963 standard needs to be implemented manually using for example this link : https://metamask.io/news/developers/how-to-implement-eip-6963-support-in-your-web-3-dapp/

Then in all the examples below we assume there is a provider object available which corresponds to the metamask object.

wallet/how-to/use-non-evm-networks/starknet/index.md

khanti42 · 2024-09-30T12:32:30Z

wallet/how-to/use-non-evm-networks/starknet/troubleshoot.md

+
+### Detect MetaMask
+
+When using `wallet_invokeSnap`, use the following function to detect if MetaMask is installed:


Here we should not describe how to handle eip6963 but instead tell the user that if they have connection issue with multiple wallet, this is most likely because they don't use eip6963 to handle the metamask detection. In that case they should refer to :
https://metamask.io/news/developers/how-to-implement-eip-6963-support-in-your-web-3-dapp/

This means we remove the helper function section.

khanti42 · 2024-09-30T12:34:41Z

wallet/how-to/use-non-evm-networks/starknet/troubleshoot.md

+
+### Verify Snap support
+
+After detecting MetaMask, verify if it supports Snaps:


Here we could specify in which circumstances there could be an issue. E.g. here its if the end users is trying to use the dApp with an old version of metamask that potentially does not support snaps. This is a way to test snap support in that case and prompt user to upgrade metamask.

stanleyyconsensys

1st batch of the comment

wallet/how-to/use-non-evm-networks/starknet/about-get-starknet.md

wallet/how-to/use-non-evm-networks/starknet/sign-starknet-data.md

wallet/how-to/use-non-evm-networks/starknet/send-starknet-transactions.md

stanleyyconsensys

review comment batch 2

wallet/how-to/use-non-evm-networks/starknet/manage-starknet-networks.md

stanleyyconsensys · 2024-10-01T07:10:37Z

wallet/how-to/use-non-evm-networks/starknet/manage-starknet-networks.md

+  const checkCurrentNetwork = async () => {
+    if (typeof window.ethereum !== "undefined" && window.ethereum.isMetaMask) {
+      try {
+        const response = await window.ethereum.request({
+          method: "wallet_invokeSnap",
+          params: {
+            snapId: "npm:@consensys/starknet-snap",
+            request: {
+              method: "starknet_getChainId"
+            }
+          }
+        });
+
+        let networkName;
+        switch (response) {
+          case "0x534e5f4d41494e":
+            networkName = "Mainnet";
+            break;
+          case "0x534e5f5345504f4c4941":
+            networkName = "Sepolia Testnet";
+            break;
+          default:
+            networkName = "Unknown Network";
+        }
+
+        console.log("Currently connected to:", networkName);
+        return response;  // Returns the chain ID.
+      } catch (error) {
+        console.error("Error getting current Starknet network:", error);
+        throw error;


Suggested change

const checkCurrentNetwork = async () => {

if (typeof window.ethereum !== "undefined" && window.ethereum.isMetaMask) {

try {

const response = await window.ethereum.request({

method: "wallet_invokeSnap",

params: {

snapId: "npm:@consensys/starknet-snap",

request: {

method: "starknet_getChainId"

}

}

});

let networkName;

switch (response) {

case "0x534e5f4d41494e":

networkName = "Mainnet";

break;

case "0x534e5f5345504f4c4941":

networkName = "Sepolia Testnet";

break;

default:

networkName = "Unknown Network";

}

console.log("Currently connected to:", networkName);

return response; // Returns the chain ID.

} catch (error) {

console.error("Error getting current Starknet network:", error);

throw error;

const checkCurrentNetwork = async () => {

const provider = await getEip6963Provider()

if (provider) {

try {

const response = await provider.request({

method: "wallet_invokeSnap",

params: {

snapId: "npm:@consensys/starknet-snap",

request: {

method: "starkNet_getCurrentNetwork"

}

}

});

console.log("Currently connected to:", response.name);

return response.chainId; // Returns the chain ID.

} catch (error) {

console.error("Error getting current Starknet network:", error);

throw error;

we should always guide user to use eip6963 to get the provider, instead of using window.ethereum
hence i create a mock implementation const provider = await getEip6963Provider()

This is a bit confusing @stanleyyconsensys. We can add a note to use the recommended EIP-6963, but for many of the other methods we are using window.ethereum. For consistency could we provide both, or maybe I can include a note to flag this,

wallet/how-to/use-non-evm-networks/starknet/manage-starknet-networks.md

wallet/how-to/use-non-evm-networks/starknet/send-starknet-transactions.md

wallet/how-to/use-non-evm-networks/starknet/sign-starknet-data.md

stanleyyconsensys · 2024-10-01T07:21:50Z

wallet/how-to/use-non-evm-networks/starknet/sign-starknet-data.md

+      console.log("Starknet Snap connected");
+
+      // Use the wallet_invokeSnap method to sign the transaction.
+      const response = await window.ethereum.request({


Suggested change

const response = await window.ethereum.request({

const response = await provider.request({

wallet/how-to/use-non-evm-networks/starknet/about-get-starknet.md

stanleyyconsensys · 2024-10-01T07:43:47Z

wallet/reference/non-evm-apis/starknet-snap-api.md

+When connected to the [Starknet Snap](../../how-to/use-non-evm-networks/starknet/index.md), dapps
+can use the Starknet Snap API to interact with users' Starknet accounts (for example, to send transactions).
+
+Currently, the [`get-starknet`](https://github.com/starknet-io/get-starknet) library only supports the


do we really need to specific what SNAP api does get-starknet implemented

as the starknet community (builders) usually following the general standard on client side , which is get-starknet / starknet.js, they have no idea what Starknet Snap API is

i think we can change the angle, instead of telling ppl what SNAP API that we supported in get-starknet, we can tell ppl MetaMask Starknet Snap is almost fully support the functionality of get-starknet v3.3.0 (except on/off event listener)

cc @khanti42

We want to be transparent about the two options that are available to dapp developers. So while we should recommend using get-starknet / starknet.js, we should still explain the alternative (wallet_invokeSnap & related methods).

@Montoya what i try to metion is using an API to represent a starknet network operation/function seem not that related

e.g get-starknet does not integrate starkNet_estimateFee, but it doesnt mean it cant do it, it is still possible to estimate the fee

so me and @khanti42 come up a conclusion that we use operation/method as the angle/entry, and each entity (get-starknet, snap), we attach the way to how to perform such action

Ah great, that makes sense

stanleyyconsensys

Add a new diagram to describe the architecture between Snap, Network, and get-starknet

stanleyyconsensys · 2024-10-01T08:35:57Z

wallet/how-to/use-non-evm-networks/starknet/manage-starknet-accounts.md

+  const showAccountInfo = async () => {
+    const account = await connectStarknetAccount();
+    if (account) {
+      document.getElementById("accountAddress").innerText = `Account Address: ${account}`;
+    }
+  };


Suggested change

const showAccountInfo = async () => {

const account = await connectStarknetAccount();

if (account) {

document.getElementById("accountAddress").innerText = `Account Address: ${account}`;

}

};

const connectStarknetAccount = async () => {

const starknet = await connect();

await starknet.enable(); // Prompts the user to connect their Starknet account using MetaMask

return starknet;

};

const showAccountInfo = async () => {

const starknet = await connectStarknetAccount();

if (account) {

document.getElementById("accountAddress").innerText = `Account Address: ${starknet.selectedAddress}`;

}

};

wallet/how-to/use-non-evm-networks/starknet/about-get-starknet.md

wallet/how-to/use-non-evm-networks/starknet/index.md

wallet/how-to/use-non-evm-networks/starknet/create-a-simple-starknet-dapp.md

rough skeleton

e6bd15c

joaniefromtheblock requested review from a team as code owners August 28, 2024 17:24

alexandratran marked this pull request as draft August 28, 2024 19:42

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Starknet Snaps Doc Addition #1511

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Add Starknet Snap API reference docs

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Develop outline for MVP docs addition #1512

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Merge branch 'main' into wip-starknet-snap

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Clean up files and placeholders

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Add Starknet API docs #1516

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		### Returns

		The response from Starknet's `feeder_gateway/estimate_fee` API endpoint.

-### Returns
-The response from Starknet's `feeder_gateway/estimate_fee` API endpoint.
+### Returns
+An object with the following properties (where values are originally `bigint` but converted to base-10 `string` format using `.toString(10)`):
+- **`suggestedMaxFee`**: `string` - The maximum suggested fee for deploying the contract in wei. This value is originally a `bigint` and is converted to a base-10 `string` using `.toString(10)`, which ensures the number is expressed in decimal format.
+- **`overallFee`**: `string` - The overall fee for the deployment transaction in wei. This value is originally a `bigint` and is converted to a base-10 `string` using `.toString(10)`, ensuring it is in decimal format.
+- **`gasConsumed`**: `string` - The amount of gas consumed during the transaction. If not available, the default value is `'0'`. This value is originally a `bigint` and is converted to a base-10 `string` using `.toString(10)`.
+- **`gasPrice`**: `string` - The gas price used for the transaction in wei. If not available, the default value is `'0'`. This value is originally a `bigint` and is converted to a base-10 `string` using `.toString(10)`.
+- **`unit`**: `string` - The unit of the fees and gas values, which is `'wei'`.

-await window.ethereum.request({
+const typedDataMessage = {
+  "types": {
+    "StarkNetDomain": [
+      { "name": "name", "type": "felt" },
+      { "name": "version", "type": "felt" },
+      { "name": "chainId", "type": "felt" }
+    ],
+    "Person": [
+      { "name": "name", "type": "felt" },
+      { "name": "wallet", "type": "felt" }
+    ],
+    "Mail": [
+      { "name": "from", "type": "Person" },
+      { "name": "to", "type": "Person" },
+      { "name": "contents", "type": "felt" }
+    ]
+  },
+  "primaryType": "Mail",
+  "domain": {
+    "name": "Starknet Mail",
+    "version": "1",
+    "chainId": 1
+  },
+  "message": {
+    "from": {
+      "name": "Cow",
+      "wallet": "0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826"
+    },
+    "to": {
+      "name": "Bob",
+      "wallet": "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB"
+    },
+    "contents": "Hello, Bob!"
+  }
+}
+await window.ethereum.request({


		### Detect MetaMask

		When using `wallet_invokeSnap`, use the following function to detect if MetaMask is installed:


		### Verify Snap support

		After detecting MetaMask, verify if it supports Snaps:

	const response = await window.ethereum.request({
	const response = await provider.request({

WIP: Starknet Snap docs #1509

Are you sure you want to change the base?

WIP: Starknet Snap docs #1509

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Still to do

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