Function isFollowExist

Check follow exist

Description

This function is used to check if follow exist by applying the following steps in sequence:

1. Get followId and followerId from request context

2. Get follow by followId and followerId (followerService.getOneFollow)

3. If follow not exist return 200

4. If follow exist return 403

Throws

403 NBError Forbidden

• follow exist

Example: example usage

const followerService = new FollowerService();
const targetField = {
 followId: {
   type: 'params',
   name: 'userId',
 },
 followerId: {
   type: 'body',
   name: 'followerId',
 },
};
const logger = new Logger();
const context = {
 params: {
   userId: '1',
 },
 body: {
   followerId: '2',
 },
};

const result = await isFollowExist(followerService, targetField, logger, context); // Return 200
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