Transaction handling in GraphQL - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start a transaction in GraphQL.

GraphQL

mutation StartTransaction {
  [1] {
    success
  }
}

Drag options to blanks, or click blank then click option'

AbeginTransaction

BcommitTransaction

CrollbackTransaction

DendTransaction

Attempts:

3 left

💡 Hint

Common Mistakes

Using commitTransaction to start instead of commit at the end.

Using rollbackTransaction which cancels changes.

The beginTransaction mutation starts a new transaction.

2fill in blank

medium

Complete the code to commit a transaction after changes.

GraphQL

mutation CommitChanges {
  [1] {
    success
  }
}

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AcommitTransaction

BbeginTransaction

CrollbackTransaction

DsaveTransaction

Attempts:

3 left

💡 Hint

Common Mistakes

Using rollbackTransaction which cancels changes.

Using beginTransaction which starts but does not save.

The commitTransaction mutation saves all changes made during the transaction.

3fill in blank

hard

Fix the error in the mutation to cancel a transaction.

GraphQL

mutation CancelTransaction {
  [1] {
    success
  }
}

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AcommitTransaction

BrollbackTransaction

CbeginTransaction

DcancelTransaction

Attempts:

3 left

💡 Hint

Common Mistakes

Using commitTransaction which saves changes.

Using beginTransaction which starts a transaction.

The rollbackTransaction mutation cancels all changes made during the transaction.

4fill in blank

hard

Fill both blanks to start and then commit a transaction.

GraphQL

mutation ManageTransaction {
  [1] {
    success
  }
  [2] {
    success
  }
}

Drag options to blanks, or click blank then click option'

AbeginTransaction

BcommitTransaction

CrollbackTransaction

DendTransaction

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping commit and rollback.

Using endTransaction which is not standard.

First, beginTransaction starts the transaction, then commitTransaction saves the changes.

5fill in blank

hard

Fill all three blanks to start, rollback, and then commit a transaction correctly.

GraphQL

mutation ComplexTransaction {
  [1] {
    success
  }
  [2] {
    success
  }
  [3] {
    success
  }
}

Drag options to blanks, or click blank then click option'

AbeginTransaction

BcommitTransaction

CrollbackTransaction

DendTransaction

Attempts:

3 left

💡 Hint

Common Mistakes

Committing before rollback.

Using endTransaction which is not standard.

Start with beginTransaction, then rollbackTransaction cancels changes, and finally commitTransaction saves if needed.