我正在尝试使用JWT Web令牌验证我的API请求，使用Ruby on Rails应用程序中的Knock gem。
我做了自述文件，并修改了routes.rb文件。
之后，我尝试使用cURL获取令牌以查看是否一切正常。我键入了curl -XPOST -H "Content-Type: application/json" -d '{"auth": {"email": "test@mail.com", "password": "password"}}' localhost:3000/auth/auth_token（Knock已挂载到＆＃34; / auth＆＃34;用户存在）。
但是，我收到500内部服务器错误和此堆栈跟踪：
`Processing by Knock::AuthTokenController#create as */*
Parameters: {"auth"=>{"email"=>"test@mail.com", "password"=>"[FILTERED]"}}
User Load (0.2ms) SELECT "users".* FROM "users" WHERE "users"."email" = ? LIMIT 1 [["email", "test@mail.com"]]
CACHE (0.0ms) SELECT "users".* FROM "users" WHERE "users"."email" = ? LIMIT 1 [["email", "test@mail.com"]]
Completed 500 Internal Server Error in 104ms (ActiveRecord: 0.5ms)`
`TypeError (no implicit conversion of nil into String):
jwt (1.5.2) lib/jwt.rb:73:in 'digest'
jwt (1.5.2) lib/jwt.rb:73:in 'sign_hmac'
jwt (1.5.2) lib/jwt.rb:34:in 'sign'
jwt (1.5.2) lib/jwt.rb:98:in 'encoded_signature'
jwt (1.5.2) lib/jwt.rb:108:in 'encode'
knock (1.4.1) app/model/knock/auth_token.rb:13:in 'initialize'
knock (1.4.1) app/controllers/knock/auth_token_controller.rb:17:in 'new'
knock (1.4.1) app/controllers/knock/auth_token_controller.rb:17:in 'auth_token'
knock (1.4.1) app/controllers/knock/auth_token_controller.rb:8:in 'create'
actionpack (4.2.5) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (4.2.5) lib/abstract_controller/base.rb:198:in `process_action'
actionpack (4.2.5) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (4.2.5) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
activesupport (4.2.5) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.5) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.5) lib/active_support/callbacks.rb:555:in `block (2 levels) in compile'
activesupport (4.2.5) lib/active_support/callbacks.rb:505:in `call'
activesupport (4.2.5) lib/active_support/callbacks.rb:505:in `call'
activesupport (4.2.5) lib/active_support/callbacks.rb:92:in `__run_callbacks__'
activesupport (4.2.5) lib/active_support/callbacks.rb:778:in `_run_process_action_callbacks'
activesupport (4.2.5) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.5) lib/abstract_controller/callbacks.rb:19:in `process_action'
actionpack (4.2.5) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (4.2.5) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
activesupport (4.2.5) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.5) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.5) lib/active_support/notifications.rb:164:in `instrument'
actionpack (4.2.5) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
actionpack (4.2.5) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
activerecord (4.2.5) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (4.2.5) lib/abstract_controller/base.rb:137:in `process'
actionview (4.2.5) lib/action_view/rendering.rb:30:in `process'
actionpack (4.2.5) lib/action_controller/metal.rb:196:in `dispatch'
actionpack (4.2.5) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
actionpack (4.2.5) lib/action_controller/metal.rb:237:in `block in action'
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:76:in `call'
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:76:in `dispatch'
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:45:in `serve'
actionpack (4.2.5) lib/action_dispatch/journey/router.rb:43:in `block in serve'
actionpack (4.2.5) lib/action_dispatch/journey/router.rb:30:in `each'
actionpack (4.2.5) lib/action_dispatch/journey/router.rb:30:in `serve'
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:817:in `call'
railties (4.2.5) lib/rails/engine.rb:518:in `call'
railties (4.2.5) lib/rails/railtie.rb:194:in `public_send'
railties (4.2.5) lib/rails/railtie.rb:194:in `method_missing'
actionpack (4.2.5) lib/action_dispatch/routing/mapper.rb:51:in `serve'
actionpack (4.2.5) lib/action_dispatch/journey/router.rb:43:in `block in serve'
actionpack (4.2.5) lib/action_dispatch/journey/router.rb:30:in `each'
actionpack (4.2.5) lib/action_dispatch/journey/router.rb:30:in `serve'
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:817:in `call'
rack (1.6.4) lib/rack/etag.rb:24:in `call'
rack (1.6.4) lib/rack/conditionalget.rb:38:in `call'
rack (1.6.4) lib/rack/head.rb:13:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
activerecord (4.2.5) lib/active_record/query_cache.rb:36:in `call'
activerecord (4.2.5) lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call'
activerecord (4.2.5) lib/active_record/migration.rb:377:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.2.5) lib/active_support/callbacks.rb:88:in `__run_callbacks__'
activesupport (4.2.5) lib/active_support/callbacks.rb:778:in `_run_call_callbacks'
activesupport (4.2.5) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.5) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/reloader.rb:73:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.2.5) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.2.5) lib/rails/rack/logger.rb:20:in `block in call'
activesupport (4.2.5) lib/active_support/tagged_logging.rb:68:in `block in tagged'
activesupport (4.2.5) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (4.2.5) lib/active_support/tagged_logging.rb:68:in `tagged'
railties (4.2.5) lib/rails/rack/logger.rb:20:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/request_id.rb:21:in `call'
rack (1.6.4) lib/rack/runtime.rb:18:in `call'
activesupport (4.2.5) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
rack (1.6.4) lib/rack/lock.rb:17:in `call'
actionpack (4.2.5) lib/action_dispatch/middleware/static.rb:116:in `call'
rack-cors (0.4.0) lib/rack/cors.rb:80:in `call'
railties (4.2.5) lib/rails/engine.rb:518:in `call'
railties (4.2.5) lib/rails/application.rb:165:in `call'
rack (1.6.4) lib/rack/lock.rb:17:in `call'
rack (1.6.4) lib/rack/content_length.rb:15:in `call'
rack (1.6.4) lib/rack/handler/webrick.rb:88:in `service'
/home/user/.rbenv/versions/2.2.3/lib/ruby/2.2.0/webrick/httpserver.rb:138:in `service'
/home/user/.rbenv/versions/2.2.3/lib/ruby/2.2.0/webrick/httpserver.rb:94:in `run'
/home/user/.rbenv/versions/2.2.3/lib/ruby/2.2.0/webrick/server.rb:294:in `block in start_thread'
我不知道造成这种情况的原因。更奇怪的是，我正和朋友一起工作，他能够生成一个令牌，即使我们在同一个分支上，环境应该是相同的（显然它不是' ，但我不知道我们的不同之处。
我有谷歌，但没有人似乎有同样的问题（或者我可能是谷歌搜索错误的东西）。
我正在为数据库使用Ubuntu 14.04 LTS和sqlite，如果有任何帮助的话。
提前致谢！
答案 0 :(得分：0)
我最终设法让它发挥作用。
我做的是
dist-upgrade bundle（我按照rbenv的github页面中的指南进行了操作）bundle，它获得了我需要的所有宝石rake secret并将其粘贴到config/secret.yml）在此之后它正在运作。 我最好的猜测是，我要么错过配置服务器，要么我有一个腐败的宝石。