Cannot find module jsonwebtoken

Nodejs authentication with JWT

However, i run into problems when i use require 'jsonwebtoken' ; and try to compile my code, it gives me the error described above in the title. Now, for some reason, when i uninstall the JWT and try to run my code without it, it compiles, but obviously it doesn't work. I tried re-installing it, still no success. My npm --version 6. Some of your past answers have not been well-received, and you're in danger of being blocked from answering. Cannot find module 'jsonwebtoken' Node. John Rivers Sign up or log in StackExchange. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. To learn more, see our tips on writing great answers. Please pay close attention to the following guidance: Please be sure to answer the question. Sign up using Google. This page is only for reference, If you need detailed information, please check here. I don't have any problem for the creation of my data and the training. I reduced the size of my model and make smaller all the parameters but nothing has changed. I don't know how …. Read more.

nodejs中使用jsonwebtoken模块遇到的错误


GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. As I understand with the last update on May 9, lib integrated with 'passport-jwt' which use 'jsonwebtoken' inside. So, for now, 'jsonwebtoken' exist only in devDependencies package. If you see, passport today is also a devDependency, and you're only pointing out that the issue is on the jsonwebtoken one. If your app is going to be using passport, your app is probably defining it as dependency vs devDependency. The same should be with jsonwebtoken. I think the fix here is not to move it to the dependencies block, as this library doesn't make use of it at all. Fix is probably relying on documenting the use of the integration, and saying that if you're going to use it on a passport enabled app you'll need to add as well the jsonwebtoken dependency in the dependencies block. The problem with your index. Meaning that all require's have to be resolved, no matter what I use, or what I do not use in my app. If you really want to make the passport integration optional, then instead of require'ing it during initialization, let the user call a function to require it. IMO the passport integration should be optional. Not everyone will like adding jsonwebtoken as a dependency of their app just to skip this "require error" if they are not going use it at all. Then the fix can be checking if the passport module is present and only then require that integration file, which will of course require the jwt library as well. That's something we can document. I'm wondering right now about having a stable package. What we spect as users of the library is to install it and use it with any problem. So, even though you want to add this to the documentation, in order to offer a good developer experience and avoid breaking many applicationsI'd prefer and I really to resolve all the needed dependencies under the installation. We know that the passport integration should be optional; in this case, some solutions can be taken into account; for now, I can think of:. But the most crucial part today is to release a usable version of the package and avoid breaking more applications. There is already a PR with a quick fix 89which is even faster than adding a section into the documentation. Does this sound reasonable? The "quick fix" in 89 may solve it for you but may bring issues for other people. A quick workaround for anyone is to pin the node-jwks-rsa dependency at 1. So we've looked at the options and there isn't a good way of making these dependencies optional without introducing a breaking change.

Node.js + MongoDB: User Authentication & Authorization with JWT


It will help if you are familiar with Express and Apollo GraphQL to fully benefit from this post, but reading this will give you a good idea of how to use JWT for authentication in Node applications. Photo by Lustig Photography on Unsplash. Below is the flow of actions for when a request arrives at the server and is intercepted with our custom authentication middleware:. There are two tokens generated: access-token and refresh-token. The access token has a short expiry of 15 minutes and if still valid we send that request straight through to the resolver instead of querying our user table. The refresh token has a longer expiry of 7 days and at this point, we check the user is still valid in our database and that will generate new tokens for the session. However, there are options to encrypt tokens but this is not covered in this tutorial. Learn more about JWT. I will be starting from a point where you have set up a Node server using Express and Apollo Server. In your main entry file include the code below. The important part is adding the request and response objects to the ApolloServer context. This will allow access to the request object in the resolvers that contain user information decoded from a token. The following code should be directly after the above, and you can see the Express app is passed into the apolloServer. This basic set up of the Apollo Server will give you access to GraphQL Playground to test out the schema and run queries. First, we need to generate valid tokens for the client to send when making requests to authorised endpoints. Resolver will get the user information from a data source, validate user credentials and return an object containing an access token and refresh token. Taking the valid user details we will sign these details to generate our tokens. This is using the jsonwebtoken package which has a sign method. The access token is set a short minute expiry date to handle a regular succession of querying without needing to check against our data source each time. The refresh token is set a longer expiry date of 7 days and when using this token the user details are checked against the data source. Another difference is we store a count value that is used to invalidate the user token by incrementing it and forcing the user to log in again. Both tokens should use different secret keys to generate them and remember not to hard code secret information and commit to source control. When using the verify method from the jsonwebtoken package it returns the decoded user object we signed earlier. If either the access or refresh token fails null is returned to indicate the token is invalid. Using the validateTokens function in the express middleware we can validate the tokens. The middleware will be called for every request to your server and for each request we will require the client to attach two headers x-access-token and x-refresh-token to access authorised endpoints. To tell the difference between the decoded tokens, the code below looks for the decodedToken. The important thing with the refresh is to check the count in the token matches what is returned from the user data source token count. When the tokens are refreshed the data is sent back on the response object with the same header keys. To enable the client to read those headers the Access-Control-Expose-Headers needs to be set with the keys you want to expose. You have a GraphQL endpoint which returns the logged in user details. When the query is made, first get the request req object from the context which is the third parameter in resolvers functions. Check if the req. You can test this out by making a query for the logged-in user via GraphQL Playground client. Make a query to login and access the tokens. Copy and paste the tokens and set the headers before making the request for a logged-in user. Add any feedback in the comments below for improvements or found something difficult to follow and I will make the adjustments as soon as possible. Photo by Lustig Photography on Unsplash Below is the flow of actions for when a request arrives at the server and is intercepted with our custom authentication middleware: If access token exists carry on, else skip authentication check Validate access token, append user data to request object and continue, else fall back to refresh token Validate refresh token by checking the user is in the database, generate new tokens, append user data to request and continue with the request Each GraphQL endpoint will determine what data to show based on the user data appended to the request Endpoints requiring authentication with invalid tokens will throw an authentication error.

So what the heck is JWT or JSON Web Token?


By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. This is my first nodejs app and when I try to run the app using PM2 then app start and immediately it's become to errored and pm2 logs showing this. Nothing fixed for me. Tried many tutorials from the internet and from this forum. How are we doing? Please help us improve Stack Overflow. Take our short survey. Learn more. Asked today. Active today. Viewed 10 times. New contributor. Active Oldest Votes. Matrix EDM Music is a new contributor. Be nice, and check out our Code of Conduct. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Q2 Community Roadmap. The Unfriendly Robot: Automatically flagging unwelcoming comments. Featured on Meta. Community and Moderator guidelines for escalating issues via new response…. Feedback on Q2 Community Roadmap. Triage needs to be fixed urgently, and users need to be notified upon…. Technical site integration observational experiment live on Stack Overflow. Dark Mode Beta - help us root out low-contrast and un-converted bits. Related 3. Hot Network Questions. Question feed. Stack Overflow works best with JavaScript enabled.

JWT tokens for authentication using Apollo GraphQL server

Related Posts: — Node. Together they are combined to a standard structure: header. We need to install necessary modules: expresscorsbody-parsersequelizemysql2jsonwebtoken and bcryptjs. Run the command:. In the app folder, create config folder for configuration with db. First five parameters are for MySQL connection. In models folder, create User and Role data model as following code:. We use User. In development, you may need to drop existing tables and re-sync database. So you can use force: true as code above. For production, just insert these rows manually and use sync without parameters to avoid dropping data:. To verify a Signup action, we need 2 functions: — check if username or email is duplicate or not — check if roles in the request is existed or not. We get token from x-access-token of HTTP headers, then use jsonwebtoken 's verify function. There are 2 main functions for Authentication: - signup : create new User in database role is user if not specifying role - signin :. Now, do you have any question? Would you like to know how we can combine middlewares with controller functions? Let's do it in the next section. We can separate our routes into 2 part: for Authentication and for Authorization accessing protected resources. If you check the database, you can see things like this:. Today we've learned so many interesting things about Node. Despite we wrote a lot of code, I hope you will understand the overall architecture of the application, and apply it in your project at ease. If you need a working front-end for this back-end, you can find Client App in the post: - Vue. You can find the complete source code for this tutorial on Github. Just one question, can we integrate this with sequelize migrate due to the fact that it makes the job easier for entitites. Yes, we can. Great walkthrough! Helped a lot. I like the way that you organize the models, controllers and routes in every tutorial. Great Tutorial, thank you very much! Everything is working and I am trying to build a page where an admin can change the User Roles of a specific user. Right now, I have no Idea what to change or how I would implement this on the backend site.

Error: Cannot find module '@angular-devkit/core'



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