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Practical Microservices by Umesh Ram Sharma

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OpenID

Jumping to a few years back, every website had its own login mechanism. The user had to maintain credentials for each website separately. The user might use a different email, website, different sites for shopping, traveling, booking, and so on. So, the problem users were facing was to keep track of all these credentials. This initiated the idea of single sign-on (SSO). Conceptually, the user has one username and password, and they can use different websites with the same credentials. It makes the sign-in process faster and easier. Here, OpenID comes into play. OpenID is a way to identify any particular user in all the websites they visit. With OpenID, the user will give the password to an OpenID provider, and the provider will tell ...

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