Durante o processo de logout de uma instância, as chaves associadas ao estado criptográfico não estavam sendo removidas corretamente do Redis.

Dessa forma, quando uma nova conexão era estabelecida reutilizando o mesmo instanceName, o Baileys carregava chaves antigas e inválidas, incompatíveis com o novo conjunto de credenciais (creds) gerado na reconexão.

Essa inconsistência gerava o seguinte sintoma prático:

A instância autenticava com sucesso;

Contudo, ao tentar enviar mensagens, entrava em estado de bloqueio, exibindo o status “aguardando mensagem” indefinidamente.

src/utils/use-multi-file-auth-state-prisma.ts

@@ -5,6 +5,7 @@ import { INSTANCE_DIR } from '@config/path.config';
 import { AuthenticationState, BufferJSON, initAuthCreds, WAProto as proto } from 'baileys';
 import fs from 'fs/promises';
 import path from 'path';
+import {Logger} from "@config/logger.config";
 
 const fixFileName = (file: string): string | undefined => {
   if (!file) {
@@ -73,12 +74,15 @@ async function fileExists(file: string): Promise<any> {
   }
 }
 
+const logger = new Logger('useMultiFileAuthStatePrisma');
+
 export default async function useMultiFileAuthStatePrisma(
   sessionId: string,
   cache: CacheService,
 ): Promise<{
   state: AuthenticationState;
   saveCreds: () => Promise<void>;
+  removeCreds: () => Promise<void>;
 }> {
   const localFolder = path.join(INSTANCE_DIR, sessionId);
   const localFile = (key: string) => path.join(localFolder, fixFileName(key) + '.json');
@@ -142,6 +146,27 @@ export default async function useMultiFileAuthStatePrisma(
     }
   }
 
+  async function removeCreds(): Promise<any> {
+
+    const cacheConfig = configService.get<CacheConf>('CACHE');
+
+    // Redis
+    try {
+      if (cacheConfig.REDIS.ENABLED) {
+        await cache.delete(sessionId);
+        logger.info({ action: 'redis.delete', sessionId });
+
+        return
+      }
+    } catch (err) {
+      logger.warn({ action: 'redis.delete', sessionId, err });
+    }
+
+    logger.info({ action: 'auth.key.delete', sessionId });
+
+    await deleteAuthKey(sessionId);
+  }
+
   let creds = await readData('creds');
   if (!creds) {
     creds = initAuthCreds();
@@ -183,5 +208,7 @@ export default async function useMultiFileAuthStatePrisma(
     saveCreds: () => {
       return writeData(creds, 'creds');
     },
+
+    removeCreds
   };
 }

src/utils/use-multi-file-auth-state-provider-files.ts

@@ -39,7 +39,11 @@ import { Logger } from '@config/logger.config';
 import { AuthenticationCreds, AuthenticationState, BufferJSON, initAuthCreds, proto, SignalDataTypeMap } from 'baileys';
 import { isNotEmpty } from 'class-validator';
 
-export type AuthState = { state: AuthenticationState; saveCreds: () => Promise<void> };
+export type AuthState = {
+  state: AuthenticationState;
+  saveCreds: () => Promise<void>
+  removeCreds: () => Promise<void>;
+};
 
 export class AuthStateProvider {
   constructor(private readonly providerFiles: ProviderFiles) {}
@@ -86,6 +90,19 @@ export class AuthStateProvider {
       return response;
     };
 
+    const removeCreds = async () => {
+
+      const [response, error] = await this.providerFiles.removeSession(instance);
+      if (error) {
+        // this.logger.error(['removeData', error?.message, error?.stack]);
+        return;
+      }
+
+      logger.info({ action: 'remove.session', instance });
+
+      return;
+    };
+
     const creds: AuthenticationCreds = (await readData('creds')) || initAuthCreds();
 
     return {
@@ -126,6 +143,10 @@ export class AuthStateProvider {
       saveCreds: async () => {
         return await writeData(creds, 'creds');
       },
+
+      removeCreds
     };
   }
 }
+
+const logger = new Logger('useMultiFileAuthStatePrisma');

src/utils/use-multi-file-auth-state-redis-db.ts

@@ -8,6 +8,7 @@ export async function useMultiFileAuthStateRedisDb(
 ): Promise<{
   state: AuthenticationState;
   saveCreds: () => Promise<void>;
+  removeCreds: () => Promise<void>;
 }> {
   const logger = new Logger('useMultiFileAuthStateRedisDb');
 
@@ -36,6 +37,17 @@ export async function useMultiFileAuthStateRedisDb(
     }
   };
 
+  async function removeCreds(): Promise<any> {
+    try {
+
+      logger.warn({ action: 'redis.delete', instanceName });
+
+      return await cache.delete(instanceName);
+    } catch {
+      return;
+    }
+  }
+
   const creds: AuthenticationCreds = (await readData('creds')) || initAuthCreds();
 
   return {
@@ -76,5 +88,7 @@ export async function useMultiFileAuthStateRedisDb(
     saveCreds: async () => {
       return await writeData(creds, 'creds');
     },
+
+    removeCreds
   };
 }