CODEWITHSUNDEEP
hyperledger-composer
Rahul Singh
Rahul Singh

Reputation: 107

Using SQL in transaction function in Hyperledger Composer

Can I call SQL/MYSQL queries from my transaction function in Hyperledger Composer?

If so, How can I?

If not, should I go with a Rest Api and Consume it from my transaction function? If there is a better way please suggest.

Upvotes: 0

Views: 89

Answers (1)

Paul O'Mahony
Paul O'Mahony

Reputation: 6740

you can use a call-out to the REST endpoint for your SQL query - examples of that are shown here -> https://hyperledger.github.io/composer/latest/integrating/call-out. Also observe the comments on achieving deterministic results below.

the example shows you can return results to your Transaction Processor function. As for your query - if you don't already have REST APIs set up for those, there's plenty of resources out there to help

Upvotes: 1

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