Composer v0.19.13

Welcome to Hyperledger Composer v0.19.13, which comes with features and fixes. Only one significant feature with this release but an amazing Conga Comic to make up for it.

Features

✨ Last release saw return values from running a transaction. This release you can also have REST Server support for return values in transactions. PR #4291 comes from @nicolapaoli

Bug fixes

🐞 #4290 and #4273 are fixes to remove the event url from everywhere 🐞 #4286 Adding a new line after emitting chaincode script to account for last line from @akaila 🐞 #4265 fix to move the npm search endpoint 🐞 #4259 Cleanly stop npm proxy in the playground API 🐞 #4252 fix issue with admin importCard API

Doc Updates

📖 #4282 Change docs to use explicit Composer and Fabric versions in commands 📖 #4281 Fixes so spelling mistakes. Thanks @mitchstewart

Please do read the documentation, and if you really want more information, then check out our integration tests as the examples are being run as part of our regression test suite 👌

Notes

⚠️ If using the Composer tooling to create a Hyperledger Fabric development server, this will now be creating a v1.1.0 server by default. If you are using Composer v0.16.x, you will need to use Fabric v1.0.x, and you must set an environment variable via export FABRIC_VERSION=hlfv1 when using the Hyperledger Fabric development servers provided by Composer.

⚠️ If you have not specified a version in your npm or docker commands when pulling Composer binaries, and you need to keep using Composer v0.16.x, then you *must specify the version number:

• npm install -g composer-cli@0.16.6
• docker pull hyperledger/composer-cli:0.16.6

We strongly suggest that you migrate to Composer v0.19.x instead, but we understand that existing projects may need to stick with Composer v0.16.x for the time being.

⚠️ Business Network Cards are not transferable between v0.16.x and v0.17.x onwards. It will be necessary to manually clear your card store in order to use a different version. Please note that the CLI command to delete a named card will not work correctly if targeting a named card that was created from a different version.

⚠️ The Composer Tools is now setting up a Fabric v1.1 network. Unfortunately only Composer v0.18.2 and above are (and will be) compatible with this alpha driver. There are multiple support splits across differing Fabric levels, so please be careful with what versions are being used:

• v0.18.2, v0.19.0 and above are compatible with the Fabric 1.1.0 driver only
• v0.18.0 -> v0.18.1 are compatible with the Fabric RC1 driver only
• v0.17.3 -> v0.17.6 are compatible with Fabric alpha driver only
• v0.17.0 -> v0.17.2 are compatible with Fabric preview driver only

⚠️ The is a change in the business network lifecycle administration, and business network card commands between v0.18.2 and v0.19.0

Conga Comics

This week conga comic featuring the Blockchain Wizard!!!

If you are new to Conga Comics, then you can view the complete Conga Comic collection at https://congacomic.github.io/