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Installation

The Mirror Node can be run locally or via Docker.

Building

To run locally, first build the project using Java. Ensure you have OpenJDK 17 installed, then run the following command from the top level directory. This will compile a runnable mirror node JAR file in the target directory.

./gradlew clean build -x test

Running Locally

Database Setup

In addition to OpenJDK 17, you will need to install a PostgreSQL database and initialize it.

Since Flyway will manage the database schema, the only required step is to run the database initialization script. Locate the SQL script at hedera-mirror-importer/src/main/resources/db/scripts/init.sh and edit the file to change the name and password variables at the top of the file to the desired values. Then make sure the application configuration matches the values in the script. Run the SQL script as a super user and check the output carefully to ensure no errors occurred.

./hedera-mirror-importer/src/main/resources/db/scripts/init.sh

Importer

To run the Importer, first populate the configuration at one of the supported configuration paths, then run:

java -jar hedera-mirror-importer/build/libs/hedera-mirror-importer-*.jar

Additionally, there is a Systemd unit file located in the hedera-mirror-importer/scripts/ directory that can be used to manage the process. See the operations documentation for more information.

gRPC API

To run the gRPC API, first populate the configuration at one of the supported configuration paths, then run:

java -jar hedera-mirror-grpc/build/libs/hedera-mirror-grpc-*.jar

Monitor

To run the monitor, first populate the configuration at one of the supported configuration paths, then run:

java -jar hedera-mirror-monitor/build/libs/hedera-mirror-monitor-*.jar

The monitor is mainly intended to be run as a Docker container. See our Docker Compose and our Helm chart for more details.

REST API

To start the REST API ensure you have the necessary configuration populated and run:

cd hedera-mirror-rest
npm install
npm start

Unit Tests

Run the unit tests using jest by using:

npm test

Rosetta API

Prerequisites

Go 1.19+

To start the Rosetta API ensure you have the necessary configuration populated and run:

cd hedera-mirror-rosetta
go run cmd/*

Unit Tests

Run the unit tests by executing:

cd hedera-mirror-rosetta
go test ./...

Rosetta CLI Validation

After you have started the Rosetta API, in another terminal run:

cd hedera-mirror-rosetta/scripts/validation
./run-validation.sh

Currently, Rosetta CLI Validation supports only DEMO and TESTNET, where DEMO is default and TESTNET can be run via:

./run-validation.sh testnet

Rosetta All-in-One Dockerfile configuration

The All-in-One configuration aggregates the PostgreSQL, Importer, and Rosetta services into a single Dockerfile configuration. Configuration is based on the Rosetta specification, found here. Data persistence is based on Rosetta specification as well, found here. Exposed ports are 5432 (PostgreSQL) and 5700 (Rosetta).

To build the Dockerfile, run:

cd hedera-mirror-rosetta/build
docker build .

Image container can be run via:

docker run <image>

With a mounted volume:

docker run -v <volume>:/data <image>

The built Docker image can be run in online (default) and offline mode. The online mode runs all the above specified services, where in offline - only the Rosetta service.

To run in offline mode:

docker run -e MODE=offline <image>

You can override Importer and Rosetta services default configuration by passing environment variables, specified here.

For ease, the NETWORK environment variable can be set to override the Importer and Rosetta default Hedera network configuration:

docker run -e NETWORK=TESTNET <image>

In order Importer to sync data, different from default, the following environment variables need to be overridden:

HEDERA_MIRROR_IMPORTER_DOWNLOADER_ACCESSKEY=
HEDERA_MIRROR_IMPORTER_DOWNLOADER_BUCKETNAME=
HEDERA_MIRROR_IMPORTER_DOWNLOADER_CLOUDPROVIDER=
HEDERA_MIRROR_IMPORTER_DOWNLOADER_GCPPROJECTID=
HEDERA_MIRROR_IMPORTER_DOWNLOADER_SECRETKEY=
HEDERA_MIRROR_IMPORTER_START_DATE=

regardless of specified NETWORK.

A full example for testnet network in online mode:

docker run -e NETWORK=TESTNET \
-e HEDERA_MIRROR_IMPORTER_DOWNLOADER_ACCESSKEY= \
-e HEDERA_MIRROR_IMPORTER_DOWNLOADER_BUCKETNAME= \
-e HEDERA_MIRROR_IMPORTER_DOWNLOADER_CLOUDPROVIDER= \
-e HEDERA_MIRROR_IMPORTER_DOWNLOADER_GCPPROJECTID= \
-e HEDERA_MIRROR_IMPORTER_DOWNLOADER_SECRETKEY= \
-e HEDERA_MIRROR_IMPORTER_START_DATE= \
-p 5700:5700 \
<image>

Running via Docker Compose

Docker Compose scripts are provided and can run all the mirror node components. Containers use the following persistent volumes:

  • ./db on your local machine maps to /var/lib/postgresql/data in the db container. This contains the files for the PostgreSQL database. If the database container fails to initialise properly and the database fails to run, you will have to delete this folder prior to attempting a restart otherwise the database initialisation scripts will not be run.

Configuration

Before starting, configure the application by updating the application.yml file with the desired custom values. This file is passed to Docker Compose and allows customized configuration for each of the mirror node components. The application.yml file contents represent the minimal set of fields required to configure requester pays and must be uncommented and filled in.

Starting

Finally, run the commands to build and startup:

docker compose up

Verifying

When running the mirror node using Docker, activity logs and container status for each module container can be viewed in the Docker Desktop Dashboard or the docker CLI to verify expected operation. You can also interact with mirror node APIs to verify their operation.

First list running docker container information using and verify an Up status is present:

$ docker ps
CONTAINER ID    IMAGE                                      COMMAND                 CREATED         STATUS          PORTS                   NAMES
21fa2a986d99    gcr.io/mirrornode/hedera-mirror-rest:main  "docker-entrypoint.s…"  7 minutes ago   Up 12 seconds   0.0.0.0:5551->5551/tcp  hedera-mirror-node_rest_1
56647c384d49    gcr.io/mirrornode/hedera-mirror-grpc:main  "java -cp /app/resou…"  8 minutes ago   Up 16 seconds   0.0.0.0:5600->5600/tcp  hedera-mirror-node_grpc_1

Using the IP address and port, the APIs' endpoints can be called to confirm data is processed and available.

Database

The following log can be used to confirm the database is up and running:

database system is ready to accept connections

If you have PostgreSQL installed you can connect directly to your database using the following psql command and default configurations:

psql "dbname=mirror_node host=localhost user=mirror_node password=mirror_node_pass port=5432"

If psql is not available locally you can docker exec -it <CONTAINER ID> bash into the db container and run the same command above.

Importer

Logs similar to the following snippets can be used to confirm the Importer is downloading and persisting transactions to the database:

o.f.c.i.c.DbMigrate Schema "public" is up to date. No migration necessary.
c.h.m.i.MirrorImporterApplication Started MirrorImporterApplication in 18.77 seconds
...
c.h.m.i.p.b.AccountBalanceFileParser Successfully processed 1474 items from 2022-01-05T18_30_00.150597126Z_Balances.pb.gz in 12.78 ms
c.h.m.i.d.r.RecordFileDownloader Downloaded 1 signatures in 102.8 ms (9/s)
c.h.m.i.p.r.RecordFileParser Successfully processed 2 items from 2022-01-05T18_16_24.581564299Z.rcd in 3.784 ms

GraphQL API

The GraphQL API container will display logs similar to the below at start:

c.h.m.graphql.GraphQlApplication Started GraphqlApplication in 23.05 seconds

To manually verify the GraphQL API endpoints run the acceptance tests.

gRPC API

The gRPC container will display logs similar to the below at start:

c.h.m.g.MirrorGrpcApplication Started MirrorGrpcApplication in 15.808 seconds

To manually verify the gRPC streaming endpoint please consult the operations guide.

REST API

The REST API container will display logs similar to the below at start:

Server running on port: 5551

To manually verify REST API endpoint please consult the operations guide.

Rosetta API

The Rosetta API container will display logs similar to the below at start:

Successfully connected to Database
Serving Rosetta API in ONLINE mode
Listening on port 5700

To manually verify the Rosetta API endpoints follow the operations details.

Web3 API

The Web3 API container will display logs similar to the below at start:

c.h.m.web3.Web3Application Started Web3Application in 27.808 seconds

To manually verify the Web3 API endpoints run the acceptance tests.

Stopping

Shut down the containers via docker compose down.