lnurl pay info

proto/autogenerated/ts/express_server.ts

@@ -191,6 +191,20 @@ export default (methods: Types.ServerMethods, opts: ServerOptions) => {
             res.json({status: 'OK'})
         } catch (ex) { const e = ex as any; logErrorAndReturnResponse(e, e.message || e, res, logger); if (opts.throwErrors) throw e }
     })
+    if (!opts.allowNotImplementedMethods && !methods.GetAppUserLNURLInfo) throw new Error('method: GetAppUserLNURLInfo is not implemented')
+    app.post('/api/app/user/lnurl/pay/info', async (req, res) => {
+        try {
+            if (!methods.GetAppUserLNURLInfo) throw new Error('method: GetAppUserLNURLInfo is not implemented')
+            const authContext = await opts.AppAuthGuard(req.headers['authorization'])
+            const request = req.body
+            const error = Types.GetAppUserLNURLInfoRequestValidate(request)
+            if (error !== null) return logErrorAndReturnResponse(error, 'invalid request body', res, logger)
+            const query = req.query
+            const params = req.params
+            const response = await methods.GetAppUserLNURLInfo({ ...authContext, ...query, ...params }, request)
+            res.json({status: 'OK', ...response})
+        } catch (ex) { const e = ex as any; logErrorAndReturnResponse(e, e.message || e, res, logger); if (opts.throwErrors) throw e }
+    })
     if (!opts.allowNotImplementedMethods && !methods.AddUser) throw new Error('method: AddUser is not implemented')
     app.post('/api/user/add', async (req, res) => {
         try {

proto/autogenerated/ts/http_client.ts

@@ -168,6 +168,20 @@ export default (params: ClientParams) => ({
         }
         return { status: 'ERROR', reason: 'invalid response' }
     },
+    GetAppUserLNURLInfo: async (request: Types.GetAppUserLNURLInfoRequest): Promise<ResultError | ({ status: 'OK' }& Types.LnurlPayInfoResponse)> => {
+        const auth = await params.retrieveAppAuth()
+        if (auth === null) throw new Error('retrieveAppAuth() returned null')
+        let finalRoute = '/api/app/user/lnurl/pay/info'
+        const { data } = await axios.post(params.baseUrl + finalRoute, request, { headers: { 'authorization': auth } })
+        if (data.status === 'ERROR' && typeof data.reason === 'string') return data
+        if (data.status === 'OK') { 
+            const result = data
+            if(!params.checkResult) return { status: 'OK', ...result }
+            const error = Types.LnurlPayInfoResponseValidate(result)
+            if (error === null) { return { status: 'OK', ...result } } else return { status: 'ERROR', reason: error.message }
+        }
+        return { status: 'ERROR', reason: 'invalid response' }
+    },
     AddUser: async (request: Types.AddUserRequest): Promise<ResultError | ({ status: 'OK' }& Types.AddUserResponse)> => {
         const auth = await params.retrieveGuestAuth()
         if (auth === null) throw new Error('retrieveGuestAuth() returned null')

proto/service/methods.proto

@@ -144,6 +144,12 @@ service LightningPub {
         option (http_route) = "/api/app/internal/pay";
     }
 
+    rpc GetAppUserLNURLInfo(structs.GetAppUserLNURLInfoRequest) returns (structs.LnurlPayInfoResponse) {
+        option (auth_type)  = "App";
+        option (http_method) = "post";
+        option (http_route) = "/api/app/user/lnurl/pay/info";
+    }
+
     // </App>
 
     rpc AddUser(structs.AddUserRequest)returns (structs.AddUserResponse){

proto/service/structs.proto

@@ -87,6 +87,10 @@ message SendAppUserToAppPaymentRequest {
     int64 amount = 2;
 }
 
+message GetAppUserLNURLInfoRequest {
+    string user_identifier = 1;
+}
+
 enum AddressType {
     WITNESS_PUBKEY_HASH = 0;
     NESTED_PUBKEY_HASH = 1;

src/services/main/applicationManager.ts

@@ -100,4 +100,8 @@ export default class {
         const app = await this.storage.applicationStorage.GetApplication(appId)
         await this.paymentManager.SendUserToUserPayment(fromUser.user.user_id, app.owner.user_id, req.amount)
     }
+    async GetAppUserLNURLInfo(appId: string, req: Types.GetAppUserLNURLInfoRequest): Promise<Types.LnurlPayInfoResponse> {
+        const user = await this.storage.applicationStorage.GetApplicationUser(appId, req.user_identifier)
+        return this.paymentManager.GetLnurlPayInfoFromUser(user.user.user_id)
+    }
 }

src/services/main/paymentManager.ts

@@ -161,7 +161,18 @@ export default class {
         })
     }
 
-    async GetLnurlPayInfo(payInfoK1: string): Promise<Types.LnurlPayInfoResponse> {
+    async GetLnurlPayInfoFromUser(userId: string): Promise<Types.LnurlPayInfoResponse> {
+        const payK1 = await this.storage.paymentStorage.AddUserEphemeralKey(userId, 'pay')
+        return {
+            tag: 'payRequest',
+            callback: `${this.settings.serviceUrl}/api/guest/lnurl_pay/handle?k1=${payK1.key}`,
+            maxSendable: 10000000,
+            minSendable: 0,
+            metadata: defaultLnurlPayMetadata
+        }
+    }
+
+    async GetLnurlPayInfoFromK1(payInfoK1: string): Promise<Types.LnurlPayInfoResponse> {
         const key = await this.storage.paymentStorage.UseUserEphemeralKey(payInfoK1, 'payInfo')
         const payK1 = await this.storage.paymentStorage.AddUserEphemeralKey(key.user.user_id, 'pay')
         return {
@@ -189,10 +200,8 @@ export default class {
         }
     }
 
-
     async OpenChannel(userId: string, req: Types.OpenChannelRequest): Promise<Types.OpenChannelResponse> { throw new Error("WIP") }
 
-
     mapOperations(operations: UserOperationInfo[], type: Types.UserOperationType, inbound: boolean): Types.UserOperations {
         if (operations.length === 0) {
             return {

src/services/serverMethods/index.ts

@@ -86,7 +86,7 @@ export default (mainHandler: Main): Types.ServerMethods => {
             if (!ctx.k1) {
                 throw new Error("invalid lnurl pay to get info")
             }
-            return mainHandler.paymentManager.GetLnurlPayInfo(ctx.k1)
+            return mainHandler.paymentManager.GetLnurlPayInfoFromK1(ctx.k1)
         },
         HandleLnurlPay: async (ctx) => {
             if (!ctx.k1 || !ctx.amount) {
@@ -169,6 +169,13 @@ export default (mainHandler: Main): Types.ServerMethods => {
             })
             if (err != null) throw new Error(err.message)
             await mainHandler.applicationManager.SendAppUserToAppPayment(ctx.app_id, req)
+        },
+        GetAppUserLNURLInfo: async (ctx, req) => {
+            const err = Types.GetAppUserLNURLInfoRequestValidate(req, {
+                user_identifier_CustomCheck: id => id !== ''
+            })
+            if (err != null) throw new Error(err.message)
+            return mainHandler.applicationManager.GetAppUserLNURLInfo(ctx.app_id, req)
         }
     }
 }