Add EAS Attestations credentials to API and Dashboard

apps/api/src/app/credentials/credentials.service.ts

@@ -6,7 +6,9 @@ import {
     Web2Provider,
     providers,
     Web2Context,
-    BlockchainContext
+    BlockchainContext,
+    EASContext,
+    EASNetworks
 } from "@bandada/credentials"
 import { blockchainCredentialSupportedNetworks } from "@bandada/utils"
 import { id } from "@ethersproject/hash"
@@ -139,7 +141,7 @@ export class CredentialsService {
                 } = this.oAuthState.get(credentialOAuthState))
                 const provider = getProvider(providerName)
 
-                let context: Web2Context | BlockchainContext
+                let context: Web2Context | BlockchainContext | EASContext
 
                 if (address && credentialProvider === "blockchain") {
                     const { network } = credentials.credentials[i].criteria
@@ -171,6 +173,14 @@ export class CredentialsService {
                         jsonRpcProvider
                     }
 
+                    // Check if the same account has already joined the group.
+                    accountHash = id(address + groupId)
+                } else if (address && credentialProvider === "eas") {
+                    context = {
+                        network: EASNetworks.ETHEREUM_SEPOLIA,
+                        address: address[0]
+                    }
+
                     // Check if the same account has already joined the group.
                     accountHash = id(address + groupId)
                 } else {
@@ -259,30 +269,44 @@ export class CredentialsService {
 
         let accountHash: string
 
-        let context: Web2Context | BlockchainContext
+        let context: Web2Context | BlockchainContext | EASContext
 
         if (address) {
-            const { network } = JSON.parse(group.credentials).criteria
+            const { network, recipient } = JSON.parse(
+                group.credentials
+            ).criteria
+
+            if (network) {
+                const supportedNetwork =
+                    blockchainCredentialSupportedNetworks.find(
+                        (n) => n.name.toLowerCase() === network.toLowerCase()
+                    )
 
-            const supportedNetwork = blockchainCredentialSupportedNetworks.find(
-                (n) => n.name.toLowerCase() === network.toLowerCase()
-            )
+                if (supportedNetwork === undefined)
+                    throw new BadRequestException(
+                        `The network is not supported`
+                    )
 
-            if (supportedNetwork === undefined)
-                throw new BadRequestException(`The network is not supported`)
+                const networkEnvVariableName = supportedNetwork.id.toUpperCase()
 
-            const networkEnvVariableName = supportedNetwork.id.toUpperCase()
+                const web3providerRpcURL =
+                    process.env[`${networkEnvVariableName}_RPC_URL`]
 
-            const web3providerRpcURL =
-                process.env[`${networkEnvVariableName}_RPC_URL`]
+                const jsonRpcProvider = await (
+                    provider as BlockchainProvider
+                ).getJsonRpcProvider(web3providerRpcURL)
 
-            const jsonRpcProvider = await (
-                provider as BlockchainProvider
-            ).getJsonRpcProvider(web3providerRpcURL)
+                context = {
+                    address: address[0],
+                    jsonRpcProvider
+                }
+            }
 
-            context = {
-                address: address[0],
-                jsonRpcProvider
+            if (recipient) {
+                context = {
+                    network: EASNetworks.ETHEREUM_SEPOLIA,
+                    address: address[0]
+                }
             }
 
             // Check if the same account has already joined the group.

apps/dashboard/src/pages/credentials.tsx

@@ -3,7 +3,8 @@ import {
     blockchain,
     Web2Provider,
     twitter,
-    github
+    github,
+    eas
 } from "@bandada/credentials"
 import { Flex, Text, Button } from "@chakra-ui/react"
 import { useEffect, useState, useCallback, useContext } from "react"
@@ -227,6 +228,57 @@ export default function CredentialsPage() {
                     }
                 }
 
+                // If the credential is EAS
+                if (
+                    providerName === eas.name &&
+                    isLoggedInAdmin() &&
+                    state &&
+                    admin
+                ) {
+                    if (groupType) {
+                        const bandadaCredentials =
+                            localStorage.getItem(LOCAL_STORAGE)
+                        if (!bandadaCredentials) return null
+                        const providers = JSON.parse(bandadaCredentials)
+                        providers[providerName] = [
+                            state,
+                            undefined,
+                            admin.address
+                        ]
+                        localStorage.setItem(
+                            LOCAL_STORAGE,
+                            JSON.stringify(providers)
+                        )
+                        if (!groupId || !memberId) return
+                        const url = getUrlNextEmpty(groupId, memberId)
+
+                        if (url === null) {
+                            const clientRedirectUrl =
+                                await validateCredentials()
+                            if (clientRedirectUrl) {
+                                window.location.replace(clientRedirectUrl)
+                            } else {
+                                setMessage("You have joined the group!")
+                            }
+                            return
+                        }
+
+                        window.location.replace(url)
+                    }
+
+                    const redirectUrl = await addMemberByCredentials(
+                        [state],
+                        undefined,
+                        [admin.address]
+                    )
+
+                    if (redirectUrl) {
+                        window.location.replace(redirectUrl)
+                    } else {
+                        setMessage("You have joined the group!")
+                    }
+                }
+
                 // If it is a web2 credential. This is the first request for web2 credentials
                 if (
                     (providerName === twitter.name ||

libs/credentials/README.md

@@ -463,6 +463,42 @@ validateCredentials(
         }
     }
 )
+
+// Validate blockchain credentials
+validateCredentials(
+    {
+        id: blockchainBalance.id,
+        criteria: {
+            minBalance: "10",
+            network: "sepolia",
+            blockNumber: 4749638
+        }
+    },
+    {
+        address: "0x",
+        jsonRpcProvider
+    }
+)
+
+// Validate EAS attestations credentials
+validateCredentials(
+    {
+        id: easAttestations.id,
+        criteria: {
+            minAttestations: 1,
+            recipient: "0x0",
+            attester: "0x1",
+            schemaId: "0x2",
+            revocable: true,
+            revoked: false,
+            isOffchain: false
+        }
+    },
+    {
+        network: EASNetworks.ETHEREUM,
+        address: "0x1"
+    }
+)
 ```
 
 ## Validate many credentials

libs/credentials/src/index.test.ts

@@ -147,12 +147,16 @@ describe("Credentials library", () => {
     })
 
     describe("# queryGraph", () => {
-        it("Should return a function that can be used to query graphs data using GraphQL", () => {
-            const query = queryGraph(
+        it("Should return a function that can be used to query graphs data using GraphQL", async () => {
+            const query = await queryGraph(
                 "https://easscan.org/graphql",
                 `
                 query {
-                    attestations {
+                    attestations(where: {
+                        recipient: {
+                            equals: "0x"
+                        }
+                    }) {
                         recipient
                         attester
                         revocable
@@ -164,7 +168,7 @@ describe("Credentials library", () => {
             `
             )
 
-            expect(query).toBeUndefined()
+            expect(query).toEqual({})
         })
     })
 

libs/credentials/src/queryGraph.ts

@@ -8,7 +8,7 @@ import { request } from "@bandada/utils"
  * @returns The function to query the graph.
  */
 export default function queryGraph(endpoint: string, query: string) {
-    request(endpoint, {
+    return request(endpoint, {
         method: "POST",
         headers: { "Content-Type": "application/json" },
         data: JSON.stringify({

libs/credentials/src/types/index.ts

@@ -27,7 +27,8 @@ export type BlockchainContext = {
 }
 
 export type EASContext = {
-    queryGraph: (query: string) => Promise<any>
+    network: EASNetworks
+    address: BigNumberish
 }
 
 export type Context = Web2Context | BlockchainContext | EASContext