> For the complete documentation index, see [llms.txt](https://awsnotes.dendron.so/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://awsnotes.dendron.so/blockchain/amazon-managed-blockchain/common/getting-started.md). # Getting Started {% hint style="info" %} This page was generated from content adapted from the [AWS Developer Guide](https://github.com/awsdocs/amazon-managed-blockchain-management-guide.git) {% endhint %} ## Prerequisites and Considerations * **Important**\ This security group configuration is recommended for this tutorial only. Carefully consider security group settings for your desired security posture. For information about the minimum required rules, see [Configuring Security Groups for Hyperledger Fabric on Amazon Managed Blockchain](https://github.com/kevinslin/aws-reference-notes/blob/main/services/amazon_managed_blockchain/managed-blockchain-security-sgs.md). ## Step 4: Set Up a Client * **Note**\ An AWS CloudFormation template to create a Hyperledger Fabric client is available in [amazon-managed-blockchain-client-templates repository](https://github.com/awslabs/amazon-managed-blockchain-client-templates) on Github. For more information, see the [readme.md](https://github.com/awslabs/amazon-managed-blockchain-client-templates/blob/master/README.md) in that repository. For more information about using AWS CloudFormation, see [Getting Started](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/GettingStarted.Walkthrough.html) in the *AWS CloudFormation User Guide*. * **Note**\ If you are working with Hyperledger Fabric v1.2 networks, you need to install and build the correct client version, which is available at . * **Note**\ If you are working with Hyperledger Fabric v1.2 networks, use `--branch v1.2.0` instead of `--branch v1.4.7` in the following commmands. * **Note**\ If you are working with Hyperledger Fabric v1.2 networks, use `image: hyperledger/fabric-tools:1.2` in the following example instead of `image: hyperledger/fabric-tools:1.4`. In addition, use `CORE_LOGGING_LEVEL=info` instead of `FABRIC_LOGGING_SPEC=info`. ## Step 5: Enroll the Member Admin * **Important**\ It may take a minute or two after you enroll for you to be able to use your administrator certificate to create a channel with the ordering service. ## Step 6: Create a Channel * **Note**\ All Hyperledger Fabric networks on Managed Blockchain support a maximum of 8 channels per network, regardless of network edition. * **Important**\ This file is sensitive. Artifacts from pasting can cause the file to fail with marshalling errors. We recommend using `emacs` to edit it. You can also use `VI`, but before using `VI`, enter `:set paste`, press `i` to enter insert mode, paste the contents, press escape, and then enter `:set nopaste` before saving. * **Important**\ Hyperledger Fabric 1.4 requires that a channel ID contain only lowercase ASCII alphanumeric characters, dots (.), and dashes (-). It must start with a letter, and must be fewer than 250 characters. ## Step 8: Invite a Member and Create a Multi-Member Channel * **Important**\ This file is sensitive. Artifacts from pasting can cause the file to fail with marshalling errors. We recommend using `emacs` to edit it. You can also use `VI`, but before using `VI`, enter `:set paste`, press `i` to enter insert mode, paste the contents, press escape, and then enter `:set nopaste` before saving. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://awsnotes.dendron.so/blockchain/amazon-managed-blockchain/common/getting-started.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.