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Module 2: Enums, Repeated Fields & Lists

Defining Enums

Progress: 1 / 2 Lessons
Step 1

Defining Enums

Enums in Protobuf

Enums allow you to define a list of predefined values. **Crucial Rule:** The first element in a proto3 enum MUST map to zero (0). This zero value becomes the default value.

``protobuf enum Status { STATUS_UNKNOWN = 0; // Must be 0 STATUS_ACTIVE = 1; } `

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Your Challenge:

1. Define an enum named
Role. 2. Add ROLE_UNKNOWN = 0;, ROLE_USER = 1;, and ROLE_ADMIN = 2;. 3. Add a role field of type Role to UserProfile with tag 8`.

Criteria (0 / 2)

Action Required
â—‹
Defines Role enum
Enum 'Role' is missing
â—‹
UserProfile has Role role = 8
Field 'role' is missing
Type required .proto code in editor to pass.
schema.proto|proto3
UTF-8Monaco Engine
Loading Monaco Editor...
proto3package user.service

Messages1

UserProfile
optionalstringid
Tag = 1
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