strangelove-ventures / lens-examples

lens-examples

Helpful info to implement Lens into your projects

Example Implementations:

• Query Balance

  • This is about as basic as it gets. Querys balance of wallet address.

• Send Transaction

  • Restore key, build transaction, broadcast transaction

• Indexing Example (WIP)

  • Index block info at given height and log in PostgreSQL.

---

Go.mod Setup

Note: This is only necessary if you are importing Lens into your project. These steps have already been taken in the above examples.

Because Lens replaces some modules in its mod file, manual steps are needed to properly import Lens into a project.

First, install lens to your GOPATH/pkg/mod directory. Run:

go install github.com/strangelove-ventures/lens@latest

Add the following lines to your mod file:

require github.com/gogo/protobuf v1.3.3
replace github.com/gogo/protobuf => github.com/regen-network/protobuf v1.3.2-alpha.regen.4

Tidy your mod file. Run:

go mod tidy

Now you can properly import lens to your go file:

import (
	lens "github.com/strangelove-ventures/lens/client"
	registry "github.com/strangelove-ventures/lens/client/chain_registry"
)

lens-examples's Issues

upgrade to latest version of lens

would be great to upgrade this to 0.5.1 of lens.
the APIs seem to have changed and are incompatible.

low priority obviously

Update examples to work with latest release of `lens`

Some of the context integration may have broke these examples.

exit code 0 after `starting block queries for`

Running #4 but indexer is exiting with code 0 after starting block queries for

sample_indexer-lens-1      | + sleep 3
sample_indexer-lens-1      | + indexer
sample_indexer-lens-1      | 2022/11/06 08:14:21 ignoring endpoint https://osmosis.validator.network:443/ due to error post failed: Post "https://osmosis.validator.network:443/": dial tcp: lookup osmosis.validator.network on 127.0.0.11:53: no such host
sample_indexer-lens-1      | 2022/11/06 08:14:21 verified healthy endpoint https://rpc.osmosis.interbloc.org:443
sample_indexer-lens-1      | 2022/11/06 08:14:21 verified healthy endpoint https://rpc-osmosis.ecostake.com:443
sample_indexer-lens-1      | 2022/11/06 08:14:21 verified healthy endpoint https://osmosis.nodejumper.io:443
sample_indexer-lens-1      | 2022/11/06 08:14:21 verified healthy endpoint https://osmosis-rpc.ibs.team:443
sample_indexer-lens-1      | 2022/11/06 08:14:21 verified healthy endpoint https://rpc-osmosis-ia.cosmosia.notional.ventures:443/
sample_indexer-lens-1      | 2022/11/06 08:14:21 ignoring endpoint https://osmosis.rpc.stakin.com:443 due to error error unmarshalling: invalid character '<' looking for beginning of value
sample_indexer-lens-1      | 2022/11/06 08:14:21 verified healthy endpoint https://osmosis-rpc.polkachu.com:443
sample_indexer-lens-1      | 2022/11/06 08:14:21 verified healthy endpoint https://osmosis-rpc.lavenderfive.com:443
sample_indexer-lens-1      | 2022/11/06 08:14:21 ignoring endpoint https://rpc-osmosis.whispernode.com:443 due to error post failed: Post "https://rpc-osmosis.whispernode.com:443": dial tcp 51.81.155.97:443: connect: connection refused
sample_indexer-lens-1      | 2022/11/06 08:14:21 verified healthy endpoint https://osmosis-rpc.quickapi.com:443
sample_indexer-lens-1      | 2022/11/06 08:14:21 verified healthy endpoint https://rpc.osmosis.goldenratiostaking.net:443
sample_indexer-lens-1      | 2022/11/06 08:14:21 verified healthy endpoint https://rpc.osmosis.silknodes.io:443
sample_indexer-lens-1      | 2022/11/06 08:14:21 verified healthy endpoint https://rpc.osmosis.zone:443/
sample_indexer-lens-1      | 2022/11/06 08:14:22 verified healthy endpoint https://rpc-osmosis.blockapsis.com:443
sample_indexer-lens-1      | 2022/11/06 08:14:22 failed to connect to database. err: failed to open db, ensure db server is running & check conn string. err: sql: unknown driver "postgres" (forgotten import?)
sample_indexer-lens-1 exited with code 1