Upgrade to Fed 2.8

package.json

@@ -12,13 +12,13 @@
     "test:compile": "tsc"
   },
   "dependencies": {
-    "@apollo/server": "^4.9.4",
-    "@apollo/subgraph": "^2.5.6",
+    "@apollo/server": "^4.11.0",
+    "@apollo/subgraph": "^2.9.0",
     "@apollosolutions/simple-auth-directive": "github:apollosolutions/simple-auth-directive",
     "body-parser": "^1.20.2",
     "cors": "^2.8.5",
-    "express": "^4.18.2",
-    "graphql": "^16.8.1"
+    "express": "^4.21.0",
+    "graphql": "^16.9.0"
   },
   "devDependencies": {
     "nodemon": "^2.0.22",

subgraphs/accounts/schema.graphql

@@ -1,4 +1,6 @@
 # noinspection GraphQLTypeRedefinition
+extend schema
+  @link(url: "https://specs.apollo.dev/federation/v2.8", import: ["@key", "@tag"])
 
 """
 Require that the user is authenticated and verified as a real user in our system.

subgraphs/credit/schema.graphql

@@ -1,21 +1,13 @@
 # noinspection GraphQLTypeRedefinition
+extend schema
+  @link(url: "https://specs.apollo.dev/federation/v2.8", import: ["@key"])
 
 enum CreditApplicationStatus {
   PENDING
   APPROVED
   DECLINED
 }
 
-enum BankAccountTier {
-  BASIC
-  PREMIUM
-  VIP
-}
-
-enum BankAccountType {
-  CREDIT_CARD
-}
-
 type User @key(fields: "id", resolvable: false) {
   id: ID!
 }
@@ -29,14 +21,6 @@ type CreditCardApplication @key(fields: "id"){
   status: CreditApplicationStatus
 }
 
-type BankAccount @key(fields: "id") {
-  id: ID!
-  type: BankAccountType
-  tier: BankAccountTier
-  balance: Int
-  availableCredit: Int
-}
-
 type CreditCardApplicationResponse {
   message: String
   success: Boolean

subgraphs/risk/schema.graphql

@@ -1,4 +1,6 @@
 # noinspection GraphQLTypeRedefinition
+extend schema
+  @link(url: "https://specs.apollo.dev/federation/v2.8", import: ["@key"])
 
 type User @key(fields: "id") {
   id: ID!

subgraphs/transactions/schema.graphql

@@ -1,8 +1,12 @@
 # noinspection GraphQLTypeRedefinition
+extend schema
+  @link(url: "https://specs.apollo.dev/federation/v2.8", import: ["@key"])
 
-enum TransactionType {
-  DEBIT
-  CREDIT
+type Mutation {
+  debitFromAccount(account: ID!, amount: Int!): TransactionResult
+  creditToAccount(account: ID!, amount: Int!): TransactionResult
+  withdrawFromAccount(account: ID!, amount: Int!): TransactionResult
+  transferFundsBetweenAccounts(fromAccount: ID!, toAccount: ID!, amount: Int!): TransactionResult
 }
 
 type Transaction @key(fields: "id") {
@@ -31,10 +35,3 @@ type InsufficientFundsError {
 }
 
 union TransactionResult = InsufficientFundsError | TransactionApproved | TransactionDeclined
-
-type Mutation {
-  debitFromAccount(account: ID!, amount: Int!): TransactionResult
-  creditToAccount(account: ID!, amount: Int!): TransactionResult
-  withdrawFromAccount(account: ID!, amount: Int!): TransactionResult
-  transferFundsBetweenAccounts(fromAccount: ID!, toAccount: ID!, amount: Int!): TransactionResult
-}

supergraph-config-dev.yaml

@@ -1,4 +1,4 @@
-federation_version: =2.5.0
+federation_version: =2.9.0
 subgraphs:
   accounts:
     routing_url: http://localhost:4001/accounts/graphql

supergraph.graphql

@@ -1,15 +1,17 @@
 schema
   @link(url: "https://specs.apollo.dev/link/v1.0")
-  @link(url: "https://specs.apollo.dev/join/v0.3", for: EXECUTION)
-  @link(url: "https://specs.apollo.dev/tag/v0.3")
+  @link(url: "https://specs.apollo.dev/join/v0.5", for: EXECUTION)
+  @link(url: "https://specs.apollo.dev/tag/v0.3", import: ["@tag"])
 {
   query: Query
   mutation: Mutation
 }
 
+directive @join__directive(graphs: [join__Graph!], name: String!, args: join__DirectiveArguments) repeatable on SCHEMA | OBJECT | INTERFACE | FIELD_DEFINITION
+
 directive @join__enumValue(graph: join__Graph!) repeatable on ENUM_VALUE
 
-directive @join__field(graph: join__Graph, requires: join__FieldSet, provides: join__FieldSet, type: String, external: Boolean, override: String, usedOverridden: Boolean) repeatable on FIELD_DEFINITION | INPUT_FIELD_DEFINITION
+directive @join__field(graph: join__Graph, requires: join__FieldSet, provides: join__FieldSet, type: String, external: Boolean, override: String, usedOverridden: Boolean, overrideLabel: String, contextArguments: [join__ContextArgument!]) repeatable on FIELD_DEFINITION | INPUT_FIELD_DEFINITION
 
 directive @join__graph(name: String!, url: String!) on ENUM_VALUE
 
@@ -39,30 +41,27 @@ type BankAccount
 {
   id: ID!
   name: String @join__field(graph: ACCOUNTS)
-  type: BankAccountType @join__field(graph: ACCOUNTS) @join__field(graph: CREDIT)
-  tier: BankAccountTier @join__field(graph: ACCOUNTS) @join__field(graph: CREDIT)
+  type: BankAccountType @join__field(graph: ACCOUNTS)
+  tier: BankAccountTier @join__field(graph: ACCOUNTS)
   user: User @join__field(graph: ACCOUNTS)
-  balance: Int @join__field(graph: CREDIT) @join__field(graph: TRANSACTIONS)
   availableCredit: Int @join__field(graph: CREDIT)
   transactions: [Transaction] @join__field(graph: TRANSACTIONS)
+  balance: Int @join__field(graph: TRANSACTIONS)
 }
 
 enum BankAccountTier
   @join__type(graph: ACCOUNTS)
-  @join__type(graph: CREDIT)
 {
-  BASIC @join__enumValue(graph: ACCOUNTS) @join__enumValue(graph: CREDIT)
-  PREMIUM @join__enumValue(graph: ACCOUNTS) @join__enumValue(graph: CREDIT)
-  VIP @join__enumValue(graph: ACCOUNTS) @join__enumValue(graph: CREDIT)
+  BASIC @join__enumValue(graph: ACCOUNTS)
+  PREMIUM @join__enumValue(graph: ACCOUNTS)
+  VIP @join__enumValue(graph: ACCOUNTS)
 }
 
 enum BankAccountType
   @join__type(graph: ACCOUNTS)
-  @join__type(graph: CREDIT)
 {
   CHECKING @join__enumValue(graph: ACCOUNTS)
   SAVINGS @join__enumValue(graph: ACCOUNTS)
-  CREDIT_CARD @join__enumValue(graph: CREDIT)
 }
 
 enum CreditApplicationStatus
@@ -98,8 +97,19 @@ type InsufficientFundsError
   message: String
 }
 
+input join__ContextArgument {
+  name: String!
+  type: String!
+  context: String!
+  selection: join__FieldValue!
+}
+
+scalar join__DirectiveArguments
+
 scalar join__FieldSet
 
+scalar join__FieldValue
+
 enum join__Graph {
   ACCOUNTS @join__graph(name: "accounts", url: "http://localhost:4001/accounts/graphql")
   CREDIT @join__graph(name: "credit", url: "http://localhost:4001/credit/graphql")
@@ -201,13 +211,6 @@ union TransactionResult
   @join__unionMember(graph: TRANSACTIONS, member: "TransactionDeclined")
  = InsufficientFundsError | TransactionApproved | TransactionDeclined
 
-enum TransactionType
-  @join__type(graph: TRANSACTIONS)
-{
-  DEBIT @join__enumValue(graph: TRANSACTIONS)
-  CREDIT @join__enumValue(graph: TRANSACTIONS)
-}
-
 type User
   @join__type(graph: ACCOUNTS, key: "id")
   @join__type(graph: CREDIT, key: "id", resolvable: false)