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NEWS

Unreleased

v0.33.0

What's New

  • Arweave file data sources - Arweave file data sources allow subgraph developers to access offchain data from Arweave from within the subgraph mappings.(#4789)
  • Major performance boost for substreams-based subgraphs - Significant performance improvements have been achieved for substreams-based subgraphs by moving substreams processing to the block stream.(#4851)
  • Polling block handler - A new block handler filter polling for ethereum data sources which enables subgraph developers to run a block handler at defined block intervals. This is useful for use cases such as taking periodic snapshots of the contract state.(#4725)
  • Initialization handler - A new block handler filter once for ethereum data sources which enables subgraph developers to create a handler which will be called only once before all other handlers run. This configuration allows the subgraph to use the handler as an initialization handler, performing specific tasks at the start of indexing. (#4725)
  • DataSourceContext in manifest - DataSourceContext in Manifest - DataSourceContext can now be defined in the subgraph manifest. It's a free-form map accessible from the mapping. This feature is useful for templating chain-specific data in subgraphs that use the same codebase across multiple chains.(#4848)
  • graph-node version in index node API - The Index Node API now features a new query, Version, which can be used to query the current graph-node version and commit. (#4852)
  • Added a 'paused' field to Index Node API, a boolean indicating the subgraph’s pause status. (#4779)
  • Proof of Indexing logs now include block number (#4798)
  • subgraph_features table now tracks details about handlers used in a subgraph (#4820)
  • Configurable SSL for Postgres in Dockerfile - ssl-mode for Postgres can now be configured via the connection string when deploying through Docker, offering enhanced flexibility in database security settings.(#4840)
  • Introspection Schema Update - The introspection schema has been updated to align with the October 2021 GraphQL specification update.(#4676)
  • trace_id Added to Substreams Logger (#4868)
  • New apiVersion for Mapping Validation - The latest apiVersion 0.0.8 validates that fields set in entities from the mappings are actually defined in the schema. This fixes a source of non-deterministic PoI. Subgraphs using this new API version will fail if they try to set undefined schema fields in the mappings. Its strongly recommended updating to 0.0.8 to avoid these issues. (#4894)
  • Substreams Block Ingestor Support - Added the ability to run a pure substreams chain by introducing a block ingestor for substreams-only chains. This feature allows users to run a chain with just a single substreams endpoint, enhancing support beyond RPC and firehose. Prior to this, a pure substreams chain couldn’t be synced.(#4839)

Bug fixes

  • Fix for rewinding dynamic data source - Resolved an issue where a rewind would fail to properly remove dynamic data sources when using graphman rewind. This has been fixed to ensure correct behavior.(#4810)
  • Improved Deployment Reliability with Retry Mechanism - A retry feature has been added to the block_pointer_from_number function to enhance the robustness of subgraph deployments. This resolves occasional failures encountered during deployment processes.(#4812)
  • Fixed Cross-Shard Grafting Issue - Addressed a bug that prevented cross-shard grafting from starting, causing the copy operation to stall at 0% progress. This issue occurred when a new shard was added after the primary shard had already been configured. The fix ensures that foreign tables and schemas are correctly set up in new shards. For existing installations experiencing this issue, it can be resolved by running graphman database remap.(#4845)
  • Fixed a Full-text search regression - Reverted a previous commit (ad1c6ea) that inadvertently limited the number of populated search indexes per entity.(#4808)
  • Attestable Error for Nested Child Filters - Nested child filter queries now return an attestable ChildFilterNestingNotSupportedError, improving error reporting for users.(#4828)

Graphman

  • Index on prefixed fields - The graphman index create command now correctly indexes prefixed fields of type String and Bytes for more query-efficient combined indexes. Note: For fields that are references to entities, the behavior may differ. The command may create an index using left(..) when it should index the column directly.
  • Partial Indexing for Recent Blocks - The graphman index create command now includes a --after $recent_block flag for creating partial indexes focused on recent blocks. This enhances query performance similar to the effects of pruning. Queries using these partial indexes must include a specific clause for optimal performance.(#4830)

Full Changelog: https://github.com/graphprotocol/graph-node/compare/v0.33.0...e253ee14cda2d8456a86ae8f4e3f74a1a7979953

v0.32.0

What's New

  • Derived fields getter: Derived fields can now be accessed from within the mapping code during indexing. (#4434)
  • Sorting interfaces by child entity: Interfaces can now be sorted by non-derived child entities. (#4058)
  • File data sources can now be spawned from handlers of other file data sources: This enables the use of file data sources for scenarios where a file data source needs to be spawned from another one. One practical application of this feature is in handling NFT metadata. In such cases, the metadata itself is stored as a file on IPFS and contains embedded IPFS CID for the actual file for the NFT. (#4713)
  • Allow redeployment of grafted subgraphs even when graft_base is not available: This will allow renaming of already synced grafted subgraphs even when the graft base is not available, which previously failed due to graft-base validation errors. (#4695)
  • history_blocks is now available in the index-node API. (#4662)
  • Added a new subgraph features table in primary to easily track information like apiVersion, specVersion, features, and data source kinds used by subgraphs. (#4679)
  • subgraphFeatures endpoint now includes data from subgraph_features table.
  • ens_name_by_hash is now undeprecated: This reintroduces support for fetching ENS names by their hash, dependent on the availability of the underlying Rainbow Table (#4751).
  • Deterministically failed subgraphs now return valid POIs for subsequent blocks after the block at which it failed. (#4774)
  • eth-call logs now include block hash and block number: This enables easier debugging of eth-call issues. (#4718)
  • Enabled support for substreams on already supported networks. (#4767)
  • Add new GraphQL scalar type Int8. This new scalar type allows subgraph developers to represent 8-bit signed integers. (#4511)
  • Add support for overriding module params for substreams-based subgraphs when params are provided in the subgraph manifest. (#4759)

Breaking changes

  • Duplicate provider labels are not allowed in graph-node config anymore

Bug fixes

  • Fixed PublicProofsOfIndexing returning the error Null value resolved for non-null field proofOfIndexing when fetching POIs for blocks that are not in the cache (#4768)
  • Fixed an issue where Block stream would fail when switching back to an RPC-based block ingestor from a Firehose ingestor. (#4790)
  • Fixed an issue where derived loaders were not working with entities with Bytes as IDs (#4773)
  • Firehose connection test now retries for 30 secs before setting the provider status to Broken (#4754)
  • Fixed the nonFatalErrors field not populating in the index node API. (#4615)
  • Fixed graph-node panicking on the first startup when both Firehose and RPC providers are configured together. (#4680)
  • Fixed block ingestor failing to startup with the error net version for chain mainnet has changed from 0 to 1 when switching from Firehose to an RPC provider. (#4692)
  • Fixed Firehose endpoints getting rate-limited due to duplicated providers during connection pool initialization. (#4778)
  • Fixed a determinism issue where stale entities were being returned when using get_many and get_derived ([#4801]graphprotocol#4801)

Graphman

  • Added two new graphman commands pause and resume: Instead of reassigning to a non-existent node these commands can now be used for pausing and resuming subgraphs. (#4642)
  • Added a new graphman command restart to restart a subgraph. (#4742)

Full Changelog: https://github.com/graphprotocol/graph-node/compare/v0.31.0...c350e4f35c49bcf8a8b521851f790234ba2c0295

v0.31.0

What's new

  • Fulltext searches can now be combined with where filtering, further narrowing down search results. #4442
  • Tweaked how RPC provider limiting rules are interpreted from configurations. In particular, node IDs that don't match any rules of a provider won't have access to said provider instead of having access to it for an unlimited number of subgraphs. Read the docs for more information. #4353
  • Introduced WASM host function store.get_in_block, which is a much faster variant of store.get limited to entities created or updated in the current block. #4540
  • The entity cache that graph-node keeps around is much more efficient, meaning more cache entries fit in the same amount of memory resulting in a performance increase under a wide range of workloads. #4485
  • The subgraph_deploy JSON-RPC method now accepts a history_blocks parameter, which indexers can use to set default amounts of history to keep. #4564
  • IPFS requests for polling file data sources are not throttled anymore (also known as concurrency or burst limiting), only rate-limited. #4570
  • Exponential requests backoff when retrying failed subgraphs is now "jittered", smoothing out request spikes. #4476
  • RPC provider responses that decrease the chain head block number (non-monotonic) are now ignored, increasing resiliency against inconsistent provider data. #4354
  • It's now possible to to have a Firehose-only chain with no RPC provider at all in the configuration. #4508, #4553
  • The materialized views in the info schema (table_sizes, subgraph_sizes, and chain_sizes) that provide information about the size of various database objects are now automatically refreshed every 6 hours. #4461
  • Adapter selection now takes error rates into account, preferring adapters with lower error rates. #4468
  • The substreams protocol has been updated to sf.substreams.rpc.v2.Stream/Blocks. #4556
  • Removed support for GRAPH_ETHEREUM_IS_FIREHOSE_PREFERRED, REVERSIBLE_ORDER_BY_OFF, and GRAPH_STORE_CONNECTION_TRY_ALWAYS env. variables. #4375, #4436

Bug fixes

  • Fixed a bug that would cause subgraphs to fail with a subgraph writer poisoned by previous error message following certain database errors. #4533
  • Fixed a bug that would cause subgraphs to fail with a store error: no connection to the server message when database connection e.g. gets killed. #4435
  • The subgraph_reassign JSON-RPC method doesn't fail anymore when multiple deployment copies are found: only the active copy is reassigned, the others are ignored. #4395
  • Fixed a bug that would cause on_sync handlers on copied deployments to fail with the message Subgraph instance failed to run: deployment not found [...]. #4396
  • Fixed a bug that would cause the copying or grafting of a subgraph while pruning it to incorrectly set earliest_block in the destination deployment. #4502
  • Handler timeouts would sometimes be reported as deterministic errors with the error message Subgraph instance failed to run: Failed to call 'asc_type_id' with [...] wasm backtrace [...]; this error is now nondeterministic and recoverable. #4475
  • Fixed faulty exponential request backoff behavior after many minutes of failed requests, caused by an overflow. #4421
  • json.fromBytes and all BigInt operations now require more gas, protecting against malicious subgraphs. #4594, #4595
  • Fixed faulty startBlock selection logic in substreams. #4463

Graphman

  • The behavior for graphman prune has changed: running just graphman prune will mark the subgraph for ongoing pruning in addition to performing an initial pruning. To avoid ongoing pruning, use graphman prune --once (docs). #4429
  • The env. var. GRAPH_STORE_HISTORY_COPY_THRESHOLD –which serves as a configuration setting for graphman prune– has been renamed to GRAPH_STORE_HISTORY_REBUILD_THRESHOLD. #4505
  • You can now list all existing deployments via graphman info --all. #4347
  • The command graphman chain call-cache remove now requires --remove-entire-cache as an explicit flag, protecting against accidental destructive command invocations. #4397
  • graphman copy create accepts two new flags, --activate and --replace, which make moving of subgraphs across shards much easier. #4374
  • The log level for graphman is now set via GRAPHMAN_LOG or command line instead of GRAPH_LOG. #4462
  • graphman reassign now emits a warning when it suspects a typo in node IDs. #4377

Metrics and logging

  • Subgraph syncing time metric deployment_sync_secs now stops updating once the subgraph has synced. #4489
  • New endpoint_request metric to track error rates of different providers. #4490, #4504, #4430
  • New metrics chain_head_cache_num_blocks, chain_head_cache_oldest_block, chain_head_cache_latest_block, chain_head_cache_hits, and chain_head_cache_misses to monitor the effectiveness of graph-node's in-memory chain head caches. #4440
  • The subgraph error message store error: Failed to remove entities is now more detailed and contains more useful information. #4367
  • eth_call logs now include the provider string. #4548
  • Tweaks and small changes to log messages when resolving data sources, mappings, and manifests. #4399
  • FirehoseBlockStream and FirehoseBlockIngestor now log adapter names. #4411
  • The deployment_count metric has been split into deployment_running_count and deployment_count. #4401, #4398

Full Changelog: https://github.com/graphprotocol/graph-node/compare/v0.30.0...aa6677a38

v0.30.0

Database locale change

New graph-node installations now mandate PostgreSQL to use C locale and UTF-8 encoding. The official docker-compose.yml template has been updated accordingly. Pre-existing graph-node installations are not concerned with this change, but local development scripts and CI pipelines may have to adjust database initialization parameters. This can be done with initdb -E UTF8 --locale=C. #4163, #4151, #4201, #4340

What's new

  • AND/OR filters. AND/OR logical operators in where filters have been one of graph-node's most awaited features. They do exactly what you would expect them to do, and are very powerful. #579, #4080, #4171
  • IPFS file data sources. IPFS file data sources allow subgraph developers to query offchain information from IPFS directly in mappings. This feature is the culmination of much community and development efforts (GIP here). A future iteration of this feature will also include a so-called "Availability Chain", allowing IPFS file data sources to contribute to Proofs of Indexing. At the moment, entity updates that originate from these data sources' handlers do not contribute to PoIs. #4147, #4162, and many others!
  • Sorting by child entities (a.k.a. nested sorting). You can now orderBy properties of child entities. #4058, #3737, #3096
  • Added support for a Firehose-based block ingestor. Indexers that use the new Firehose-based block ingestor cannot automatically switch back to RPC. In order to downgrade, indexers must manually delete all blocks accumulated by Firehose in the database. For this reason, we suggest caution when switching over from RPC to Firehose. #4059, #4204, #4216
  • Fields of type Bytes can now use less than and greater than filters. #4285
  • "userinfo" is now allowed in IPFS URLs (e.g. https://foo:[email protected]:5001/). #4252
  • The default for GRAPH_IPFS_TIMEOUT is now 60 seconds instead of 30. #4324
  • Forking options can now be set via env. vars. (GRAPH_START_BLOCK, GRAPH_FORK_BASE, GRAPH_DEBUG_FORK). #4308
  • Allow retrieving GraphQL query tracing over HTTP if the env. var. GRAPH_GRAPHQL_TRACE_TOKEN is set and the header X-GraphTraceQuery is included. The query traces' JSON is the same as returned by graphman query. #4243
  • Lots of visual and filtering improvements to #4232
  • More aggressive in-memory caching of blocks close the chain head, potentially alleviating database load. #4215
  • New counter Prometheus metric query_validation_error_counter, labelled by deployment ID and error code. #4230 graph_elasticsearch_logs_sent
  • Turned "Flushing logs to Elasticsearch" log into a Prometheus metric (graph_elasticsearch_logs_sent) to reduce log noise. #4333
  • New materialized view info.chain_sizes, which works the same way as the already existing info.subgraph_sizes and info.table_sizes. #4318
  • New graphman stats subcommands set-target and target to manage statistics targets for specific deployments (i.e. how much data PostgreSQL samples when analyzing a table). #4092

Fixes

  • graph-node now has PID=1 when running inside the official Docker image. #4217
  • More robust ipfs.cat logic during grafted subgraphs' manifest lookup. #4284
  • Fixed a bug that caused some large multi-entity inserts to fail because of faulty chunk size calculation. #4250
  • Subgraph pruning now automatically cancels ongoing autovacuum, to avoid getting stuck. #4167
  • ens.getNameByHash now fails nondeterministically if ENS rainbow tables are not available locally. #4219
  • Some kinds of subgraph failures were previously wrongly treated as unattestable (value parsing, enum and scalar coercion), i.e. nondeterministic. These subgraph failure modes are now flagged as fully-deterministic. #4278

Full Changelog: https://github.com/graphprotocol/graph-node/compare/v0.29.0...e5dd53df05d0af9ae4e69db2b588f1107dd9f1d6

v0.29.0

Upgrade notes

  • This release includes a determinism fix that affect a very small number of subgraphs on the network (we counted 2): if a subgraph manifest had one data source with no contract address, listening to the same events or calls of another data source that has a specified address, then the handlers for those would be called twice. After the fix, this will happen no more, and the handler will be called just once like it should.

    Affected subgraph deployments:

    • Qmccst5mbV5a6vT6VvJMLPKMAA1VRgT6NGbxkLL8eDRsE7
    • Qmd9nZKCH8UZU1pBzk7G8ECJr3jX3a2vAf3vowuTwFvrQg

    Here's an example manifest, taking a look at the data sources of name ERC721 and CryptoKitties, both listen to the Transfer(...) event. Considering a block where there's only one occurrence of this event, graph-node would duplicate it and call handleTransfer twice. Now this is fixed and it will be called only once per event/call that happened on chain.

    In the case you're indexing one of the impacted subgraphs, you should first upgrade the graph-node version, then rewind the affected subgraphs to the smallest startBlock of their subgraph manifest. To achieve that the graphman rewind CLI command can be used.

    See #4055 for more information.

  • This release fixes another determinism bug that affects a handful of subgraphs. The bug affects all subgraphs which have an apiVersion older than 0.0.5 using call handlers. While call handlers prior to 0.0.5 should be triggered by both failed and successful transactions, in some cases failed transactions would not trigger the handlers. This resulted in nondeterministic behavior. With this version of graph-node, call handlers with an apiVersion older than 0.0.5 will always be triggered by both successful and failed transactions. Behavior for apiVersion 0.0.5 onward is not affected.

    The affected subgraphs are:

    • QmNY7gDNXHECV8SXoEY7hbfg4BX1aDMxTBDiFuG4huaSGA
    • QmYzsCjrVwwXtdsNm3PZVNziLGmb9o513GUzkq5wwhgXDT
    • QmccAwofKfT9t4XKieDqwZre1UUZxuHw5ynB35BHwHAJDT
    • QmYUcrn9S1cuSZQGomLRyn8GbNHmX8viqxMykP8kKpghz6
    • QmecPw1iYuu85rtdYL2J2W9qcr6p8ijich9P5GbEAmmbW5
    • Qmaz1R8vcv9v3gUfksqiS9JUz7K9G8S5By3JYn8kTiiP5K

    In the case you're indexing one of the impacted subgraphs, you should first upgrade the graph-node version, then rewind the affected subgraphs to the smallest startBlock of their subgraph manifest. To achieve that the graphman rewind CLI command can be used.

    See #4149 for more information.

What's new

  • Grafted subgraphs can now add their own data sources. #3989, #4027, #4030
  • Add support for filtering by nested interfaces. #3677
  • Add support for message handlers in Cosmos #3975
  • Dynamic data sources for Firehose-backed subgraphs. #4075
  • Various logging improvements. #4078, #4084, #4031, #4144, #3990
  • Some DB queries now have GCP Cloud Insight -compliant tags that show where the query originated from. #4079
  • New configuration variable GRAPH_STATIC_FILTERS_THRESHOLD to conditionally enable static filtering based on the number of dynamic data sources. #4008
  • New configuration variable GRAPH_STORE_BATCH_TARGET_DURATION. #4133

Docker image

  • The official Docker image now runs on Debian 11 "Bullseye". #4081
  • We now ship envsubst with the official Docker image, allowing you to easily run templating logic on your configuration files. #3974

Graphman

We have a new documentation page for graphman, check it out here!

  • Subgraph pruning with graphman! #3898, #4125, #4153, #4152, #4156, #4041
  • New command graphman drop to hastily delete a subgraph deployment. #4035
  • New command graphman chain call-cache for clearing the call cache for a given chain. #4066
  • Add --delete-duplicates flag to graphman check-blocks by @tilacog in graphprotocol#3988

Performance

  • Restarting a node now takes much less time because postgres_fdw user mappings are only rebuilt upon schema changes. If necessary, you can also use the new commands graphman database migrate and graphman database remap to respectively apply schema migrations or run remappings manually. #4009, #4076
  • Database replicas now won't fall behind as much when copying subgraph data. #3966 #3986
  • Block handlers optimization with Firehose >= 1.1.0. #3971
  • Reduced the amount of data that a non-primary shard has to mirror from the primary shard. #4015
  • We now use advisory locks to lock deployments' tables against concurrent writes. #4010

Bug fixes

  • Fixed a bug that would cause some failed subgraphs to never restart. #3959
  • Fixed a bug that would cause bad POIs for Firehose-backed subgraphs when processing CREATE calls. #4085
  • Fixed a bug which would cause failure to redeploy a subgraph immediately after deletion. #4044
  • Firehose connections are now load-balanced. #4083
  • Determinism fixes. See above. #4055, #4149

Dependency updates

Dependency updated to
anyhow 1.0.66
base64 0.13.1
clap 3.2.23
env_logger 0.9.1
iana-time-zone 0.1.47
itertools 0.10.5
jsonrpsee 0.15.1
num_cpus 1.14.0
openssl 0.10.42
pretty_assertions 1.3.0
proc-macro2 1.0.47
prometheus 0.13.3
protobuf-parse 3.2.0
semver 1.0.14
serde_plain 1.0.1
sha2 0.10.6
structopt removed
tokio-stream 0.1.11
tokio-tungstenite 0.17.2
tower-test d27ba65
url 2.3.1

Full Changelog: https://github.com/graphprotocol/graph-node/compare/v0.28.2...v0.29.0

v0.28.2

Indexers are advised to migrate to v0.28.2 and entirely bypass v0.28.0 and v0.28.1.

Fixed a bug which would cause subgraphs to stop syncing under some graph-node deployment configurations. #4046, #4051

v0.28.1

Yanked. Please migrate to v0.28.2.

v0.28.0

Upgrade notes

  • New DB table for dynamic data sources. For new subgraph deployments, dynamic data sources will be recorded under the sgd*.data_sources$ table, rather than subgraphs.dynamic_ethereum_contract_data_source. As a consequence new deployments will not work correctly on earlier graph node versions, so downgrading to an earlier graph node version is not supported. See issue #3405 for other details.

What's new

  • The filepath which "too expensive qeueries" are sourced from is now configurable. You can use either the GRAPH_NODE_EXPENSIVE_QUERIES_FILE environment variable or the expensive_queries_filename option in the TOML configuration. #3710
  • The output you'll get from graphman query is less cluttered and overall nicer. The new options --output and --trace are available for detailed query information. #3860
  • docker build will now --target the production build stage by default. When you want to get the debug build, you now need --target graph-node-debug. #3814
  • Node IDs can now contain any character. The Docker start script still replaces hyphens with underscores for backwards compatibility reasons, but this behavior can be changed with the GRAPH_NODE_ID_USE_LITERAL_VALUE environment variable. With this new option, you can now seamlessly use the K8s-provided host names as node IDs, provided you reassign your deployments accordingly. #3688
  • You can now use the conn_pool_size option in TOML configuration files to configure the connection pool size for Firehose providers. #3833
  • Index nodes now have an endpoint to perform block number to canonical hash conversion, which will unblock further work towards multichain support. #3942
  • _meta.block.timestamp is now available for subgraphs indexing EVM chains. #3738, #3902
  • The deployment_eth_rpc_request_duration metric now also observes eth_getTransactionReceipt requests' duration. #3903
  • New Prometheus metrics query_parsing_time and query_validation_time for monitoring query processing performance. #3760
  • New command graphman config provider, which shows what providers are available for new deployments on a given network and node. #3816 E.g. $ graphman --node-id index_node_0 --config graph-node.toml config provider mainnet
  • Experimental support for GraphQL API versioning has landed. #3185
  • Progress towards experimental support for off-chain data sources. #3791
  • Experimental integration for substreams. #3777, #3784, #3897, #3765, and others

Bug fixes

  • graphman stats now complains instead of failing silently when incorrectly setting account-like optimizations. #3918
  • Fixed inconsistent logic in the provider selection when the limit TOML configuration option was set. #3816
  • Fixed issues that would arise from dynamic data sources' names clashing against template names. #3851
  • Dynamic data sources triggers are now processed by insertion order. #3851, #3854
  • When starting, the Docker image now replaces the bash process with the graph-node process (with a PID of 1). #3803
  • Refactor subgraph store tests by @evaporei in graphprotocol#3662
  • The ethereum_chain_head_number metric doesn't get out of sync anymore on chains that use Firehose. #3771, #3732
  • Fixed a crash caused by bad block data from the provider. #3944
  • Fixed some minor Firehose connectivity issues via TCP keepalive, connection and request timeouts, and connection window size tweaks. #3822, #3855, #3877, #3810, #3818
  • Copying private data sources' tables across shards now works as expected. #3836

Performance improvements

  • Firehose GRPC stream requests are now compressed with gzip, if the server supports it. #3893
  • Memory efficiency improvements within the entity cache. #3594
  • Identical queries now benefit from GraphQL validation caching, and responses are served faster. #3759

Other

  • Avoid leaking some sensitive information in logs. #3812

Dependency updates

Dependency PR(s) Old version Current version
serde_yaml #3746 v0.8.24 v0.8.26
web3 #3806 2760dbd 7f8eb6d
clap #3794, #3848, #3931 v3.2.8 3.2.21
cid #3824 v0.8.5 v0.8.6
anyhow #3826, #3841, #3865, #3932 v1.0.57 1.0.65
chrono #3827, #3849, #3868 v0.4.19 v0.4.22
proc-macro2 #3845 v1.0.40 1.0.43
ethabi #3847 v17.1.0 v17.2.0
once_cell #3870 v1.13.0 v1.13.1
either #3869 v1.7.0 v1.8.0
sha2 #3904 v0.10.2 v0.10.5
mockall #3776 v0.9.1 removed
croosbeam #3772 v0.8.1 v0.8.2
async-recursion #3873 none v1.0.0

0.27.0

  • Store writes are now carried out in parallel to the rest of the subgraph process, improving indexing performance for subgraphs with significant store interaction. Metrics & monitoring was updated for this new pipelined process;
  • This adds support for apiVersion 0.0.7, which makes receipts accessible in Ethereum event handlers. Documentation link;
  • This introduces some improvements to the subgraph GraphQL API, which now supports filtering on the basis of, and filtering for entities which changed from a certain block;
  • Support was added for Arweave indexing. Tendermint was renamed to Cosmos in Graph Node. These integrations are still in "beta";
  • Callhandler block filtering for contract calls now works as intended (this was a longstanding bug);
  • Gas costing for mappings is still set at a very high default, as we continue to benchmark and refine this metric;
  • A new graphman fix block command was added to easily refresh a block in the block cache, or clear the cache for a given network;
  • IPFS file fetching now uses files/stat, as object was deprecated;
  • Subgraphs indexing via a Firehose can now take advantage of Firehose-side filtering;
  • NEAR subgraphs can now match accounts for receipt filtering via prefixes or suffixes.

Upgrade notes

  • In the case of you having custom SQL, there's a new SQL migration;
  • On the pipelining of the store writes, there's now a new environment variable GRAPH_STORE_WRITE_QUEUE (default value is 5), that if set to 0, the old synchronous behaviour will come in instead. The value stands for the amount of write/revert parallel operations #3177;
  • There's now support for TLS connections in the PostgreSQL notification_listener #3503;
  • GraphQL HTTP and WebSocket ports can now be set via environment variables #2832;
  • The genesis block can be set via the GRAPH_ETHEREUM_GENESIS_BLOCK_NUMBER env var #3650;
  • There's a new experimental feature to limit the number of subgraphs for a specific web3 provider. Link for documentation;
  • Two new GraphQL validation environment variables were included: ENABLE_GRAPHQL_VALIDATIONS and SILENT_GRAPHQL_VALIDATIONS, which are documented here;
  • A bug fix for graphman index was landed, which fixed the behavior where if one deployment was used by multiple names would result in the command not working #3416;
  • Another fix landed for graphman, the bug would allow the unassign/reassign commands to make two or more nodes index the same subgraph by mistake #3478;
  • Error messages of eth RPC providers should be clearer during graph-node start up #3422;
  • Env var GRAPH_STORE_CONNECTION_MIN_IDLE will no longer panic, instead it will log a warning if it exceeds the pool_size #3489;
  • Failed GraphQL queries now have proper timing information in the service metrics #3508;
  • Non-primary shards now can be disabled through setting the pool_size to 0 #3513;
  • Queries with large results now have a query_id #3514;
  • It's now possible to disable the LFU Cache by setting GRAPH_QUERY_LFU_CACHE_SHARDS to 0 #3522;
  • GRAPH_ACCOUNT_TABLES env var is not supported anymore #3525;
  • New documentation landed on the metadata tables;
  • GRAPH_GRAPHQL_MAX_OPERATIONS_PER_CONNECTION for GraphQL subscriptions now has a default of 1000 #3735

0.26.0

Features

  • Gas metering #2414
  • Adds support for Solidity Custom Errors #2577
  • Debug fork tool #2995 #3292
  • Automatically remove unused deployments #3023
  • Fix fulltextsearch space handling #3048
  • Allow placing new deployments onto one of several shards #3049
  • Make NEAR subgraphs update their sync status #3108
  • GraphQL validations #3164
  • Add special treatment for immutable entities #3201
  • Tendermint integration #3212
  • Skip block updates when triggers are empty #3223 #3268
  • Use new GraphiQL version #3252
  • GraphQL prefetching #3256
  • Allow using Bytes as well as String/ID for the id of entities #3271
  • GraphQL route for dumping entity changes in subgraph and block #3275
  • Firehose filters #3323
  • NEAR filters #3372

Robustness

  • Improve our CacheWeight estimates #2935
  • Refactor GraphQL execution #3005
  • Setup databases in parallel #3019
  • Block ingestor now fetches receipts in parallel #3030
  • Prevent subscriptions from back-pressuring the notification queue #3053
  • Avoid parsing X triggers if the filter is empty #3083
  • Pipeline BlockStream #3085
  • More robust proofOfIndexing GraphQL route #3348

graphman

  • Add run command, for running a subgraph up to a block #3079
  • Add analyze command, for analyzing a PostgreSQL table, which can improve performance #3170
  • Add index create command, for adding an index to certain attributes #3175
  • Add index list command, for listing indexes #3198
  • Add index drop command, for dropping indexes #3198

Dependency Updates

These are the main ones:

  • Updated protobuf to latest version for NEAR #2947
  • Update web3 crate #2916 #3120 #3338
  • Update graphql-parser to v0.4.0 #3020
  • Bump itertools from 0.10.1 to 0.10.3 #3037
  • Bump clap from 2.33.3 to 2.34.0 #3039
  • Bump serde_yaml from 0.8.21 to 0.8.23 #3065
  • Bump tokio from 1.14.0 to 1.15.0 #3092
  • Bump indexmap from 1.7.0 to 1.8.0 #3143
  • Update ethabi to its latest version #3144
  • Bump structopt from 0.3.25 to 0.3.26 #3180
  • Bump anyhow from 1.0.45 to 1.0.53 #3182
  • Bump quote from 1.0.9 to 1.0.16 #3112 #3183 #3384
  • Bump tokio from 1.15.0 to 1.16.1 #3208
  • Bump semver from 1.0.4 to 1.0.5 #3229
  • Bump async-stream from 0.3.2 to 0.3.3 #3361
  • Update jsonrpc-server #3313

Misc

  • More context when logging RPC calls #3128
  • Increase default reorg threshold to 250 for Ethereum #3308
  • Improve traces error logs #3353
  • Add warning and continue on parse input failures for Ethereum #3326

Upgrade Notes

When upgrading to this version, we recommend taking a brief look into these changes:

  • Gas metering #2414
    • Now there's a gas limit for subgraph mappings, if the limit is reached the subgraph will fail with a non-deterministic error, you can make them recover via the environment variable GRAPH_MAX_GAS_PER_HANDLER
  • Improve our CacheWeight estimates #2935
    • This is relevant because a couple of releases back we've added a limit for the memory size of a query result. That limit is based of the CacheWeight.

These are some of the features that will probably be helpful for indexers 😊

  • Allow placing new deployments onto one of several shards #3049
  • GraphQL route for dumping entity changes in subgraph and block #3275
  • Unused deployments are automatically removed now #3023
    • The interval can be set via GRAPH_REMOVE_UNUSED_INTERVAL
  • Setup databases in parallel #3019
  • Block ingestor now fetches receipts in parallel #3030
    • GRAPH_ETHEREUM_FETCH_TXN_RECEIPTS_IN_BATCHES can be set to true for the old fetching behavior
  • More robust proofOfIndexing GraphQL route #3348
    • A token can be set via GRAPH_POI_ACCESS_TOKEN to limit access to the POI route
  • The new graphman commands 🙂

Api Version 0.0.7 and Spec Version 0.0.5

This release brings API Version 0.0.7 in mappings, which allows Ethereum event handlers to require transaction receipts to be present in the Event object. Refer to PR #3373 for instructions on how to enable that.

0.25.2

This release includes two changes:

  • Bug fix of blocks being skipped from processing when: a deterministic error happens and the index-node gets restarted. Issue #3236, Pull Request: #3316.
  • Automatic retries for non-deterministic errors. Issue #2945, Pull Request: #2988.

This is the last patch on the 0.25 minor version, soon 0.26.0 will be released. While that we recommend updating to this version to avoid determinism issues that could be caused on graph-node restarts.

0.25.1

This release only adds two fixes:

  • The first is to address an issue with decoding the input of some calls #3194 where subgraphs that would try to index contracts related to those would fail. Now they can advance normally.
  • The second one is to fix a non-determinism issue with the retry mechanism for errors. Whenever a non-deterministic error happened, we would keep retrying to process the block, however we should've clear the EntityCache on each run so that the error entity changes don't get transacted/saved in the database in the next run. This could make the POI generation non-deterministic for subgraphs that failed and retried for non-deterministic reasons, adding a new entry to the database for the POI.

We strongly recommend updating to this version as quickly as possible.

0.25.0

Api Version 0.0.6

This release ships support for API version 0.0.6 in mappings:

  • Added nonce field for Transaction objects.
  • Added baseFeePerGas field for Block objects (EIP-1559).

Block Cache Invalidation and Reset

All cached block data must be refetched to account for the new Block and Transaction struct versions, so this release includes a graph-node startup check that will:

  1. Truncate all block cache tables.
  2. Bump the db_version value from 2 to 3.

(Table truncation is a fast operation and no downtime will occur because of that.)

Ethereum

  • 'Out of gas' errors on contract calls are now considered deterministic errors, so they can be handled by try_ calls. The gas limit is 50 million.

Environment Variables

  • The GRAPH_ETH_CALL_GAS environment is removed to prevent misuse, its value is now hardcoded to 50 million.

Multiblockchain

  • Initial support for NEAR subgraphs.
  • Added FirehoseBlockStream implementation of BlockStream (#2716)

Misc

  • Rust docker image is now based on Debian Buster.
  • Optimizations to the PostgreSQL notification queue.
  • Improve PostgreSQL robustness in multi-sharded setups. (#2815)
  • Added 'networks' to the 'subgraphFeatures' endpoint. (#2826)
  • Check and limit the size of GraphQL query results. (#2845)
  • Allow _in and _not_in GraphQL filters. (#2841)
  • Add PoI for failed subgraphs. (#2748)
  • Make graphman rewind safer to use. (#2879)
  • Add subgraphErrors for all GraphQL schemas. (#2894)
  • Add Graph-Attestable response header. (#2946)
  • Add support for minimum block constraint in GraphQL queries (number_gte) (#2868).
  • Handle revert cases from Hardhat and Ganache (#2984)
  • Fix bug on experimental prefetching optimization feature (#2899)

0.24.2

This release only adds a fix for an issue where certain GraphQL queries could lead to graph-node running out of memory even on very large systems. This release adds code that checks the size of GraphQL responses as they are assembled, and can warn about large responses in the logs resp. abort query execution based on the values of the two new environment variables GRAPH_GRAPHQL_WARN_RESULT_SIZE and GRAPH_GRAPHQL_ERROR_RESULT_SIZE. It also adds Prometheus metrics query_result_size and query_result_max to track the memory consumption of successful GraphQL queries. The unit for the two environment variables is bytes, based on an estimate of the memory used by the result; it is best to set them after observing the Prometheus metrics for a while to establish what constitutes a reasonable limit for them.

We strongly recommend updating to this version as quickly as possible.

0.24.1

Feature Management

This release supports the upcoming Spec Version 0.0.4 that enables subgraph features to be declared in the manifest and validated during subgraph deployment #2682 #2746.

Subgraphs using previous versions are still supported and won't be affected by this change.

New Indexer GraphQL query: subgraphFetaures

It is now possible to query for the features a subgraph uses given its Qm-hash ID.

For instance, the following query...

{
  subgraphFeatures(
    subgraphId: "QmW9ajg2oTyPfdWKyUkxc7cTJejwdyCbRrSivfryTfFe5D"
  ) {
    features
    errors
  }
}

... would produce this result:

{
  "data": {
    "subgraphFeatures": {
      "errors": [],
      "features": ["nonFatalErrors", "ipfsOnEthereumContracts"]
    }
  }
}

Subraphs with any Spec Version can be queried that way.

Api Version 0.0.5

  • Added better error message for null pointers in the runtime #2780.

Environment Variables

  • When GETH_ETH_CALL_ERRORS_ENV is unset, it doesn't make eth_call errors to be considered determinsistic anymore #2784

Robustness

  • Tolerate a non-primary shard being down during startup #2727.
  • Check that at least one replica for each shard has a non-zero weight #2749.
  • Reduce locking for the chain head listener #2763.

Logs

  • Improve block ingestor error reporting for missing receipts #2743.

0.24.0

Api Version 0.0.5

This release ships support for API version 0.0.5 in mappings. hIt contains a fix for call handlers and the long awaited AssemblyScript version upgrade!

  • AssemblyScript upgrade: The mapping runtime is updated to support up-to-date versions of the AssemblyScript compiler. The graph-cli/-ts releases to support this are in alpha, soon they will be released along with a migration guide for subgraphs.
  • Call handlers fix: Call handlers will never be triggered on transactions with a failed status, resolving issue #2409. Done in #2511.

Logs

  • The log "Skipping handler because the event parameters do not match the event signature." was downgraded from info to trace level.
  • Some block ingestor error logs were upgrded from debug to info level #2666.

Metrics

  • query_semaphore_wait_ms is now by shard, and has the pool and shard labels.
  • deployment_failed metric added, it is 1 if the subgraph has failed and 0 otherwise.

Other

  • Upgrade to tokio 1.0 and futures 0.3 #2679, the first major contribution by StreamingFast!
  • Support Celo block reward events #2670.
  • Reduce the maximum WASM stack size and make it configurable #2719.
  • For robustness, ensure periodic updates to the chain head listener #2725.

0.23.1

  • Fix ipfs timeout detection #2584.
  • Fix discrepancy between a database table and its Diesel model #2586.

0.23.0

The Graph Node internals are being heavily refactored to prepare it for the multichain future. In the meantime, here are the changes for this release:

  • The GRAPH_ETH_CALL_BY_NUMBER environment variable has been removed. Graph Node requires an Ethereum client that supports EIP-1898, which all major clients support.
  • Added support for IPFS versions larger than 0.4. Several changes to make graph-node more tolerant of slow/flaky IPFS nodes.
  • Added Ethereum ABI encoding and decoding functionality #2348.
  • Experimental support for configuration files, see the documentation here.
  • Better PoI performance #2329.
  • Improve grafting performance and robustness by copying in batches #2293.
  • Subgraph metadata storage has been simplified and reorganized. External tools (e.g., Grafana dashboards) that access the database directly will need to be updated.
  • Ordering in GraphQL queries is now truly reversible #2214
  • The GRAPH_SQL_STATEMENT_TIMEOUT environment variable can be used to enforce a timeout for individual SQL queries that are run in the course of processing a GraphQL query #2285
  • Using ethereum.call in mappings in globals is deprecated

Graphman

Graphman is a CLI tool to manage your subgraphs. It is now included in the Docker container #2289. And new commands have been added:

  • graphman copy can copy subgraphs across DB shards #2313.
  • graphman rewind to rewind a deployment to a given block #2373.
  • graphman query to log info about a GraphQL query #2206.
  • graphman create to create a subgraph name #2419.

Metrics

  • The deployment_blocks_behind metric has been removed, and a deployment_head metric has been added. To see how far a deployment is behind, use the difference between ethereum_chain_head_number and deployment_head.
  • The trigger_type label was removed from the metric deployment_trigger_processing_duration.

0.22.0

Feature: Block store sharding

This release makes it possible to shard the block and call cache for chain data across multiple independent Postgres databases. This feature is considered experimental. We encourage users to try this out in a test environment, but do not recommend it yet for production use. In particular, the details of how sharding is configured may change in backwards-incompatible ways in the future.

Feature: Non-fatal errors update

Non-fatal errors (see release 0.20 for details) is documented and can now be enabled on graph-cli. Various related bug fixes have been made #2121 #2136 #2149 #2160.

Improvements

  • Add bitwise operations and string constructor to BigInt #2151.
  • docker: Allow custom ethereum poll interval #2139.
  • Deterministic error work in preparation for gas #2112

Bug fixes

  • Fix not contains filter #2146.
  • Resolve __typename in _meta field #2118
  • Add CORS for all HTTP responses #2196

0.21.1

  • Fix subgraphs failing with a fatalError when deployed while already running (#2104).
  • Fix missing scalar Int declaration in index node GraphQL API, causing indexer-service queries to fail (#2104).

0.21.0

Feature: Database sharding

This release makes it possible to shard subgraph storage and spread subgraph deployments, and the load coming from indexing and querying them across multiple independent Postgres databases.

This feature is considered experimenatal. We encourage users to try this out in a test environment, but do not recommend it yet for production use In particular, the details of how sharding is configured may change in backwards-incompatible ways in the future.

Breaking change: Require a block number in proofOfIndexing queries

This changes the proofOfIndexing GraphQL API from

type Query {
  proofOfIndexing(subgraph: String!, blockHash: Bytes!, indexer: Bytes): Bytes
}

to

type Query {
  proofOfIndexing(
    subgraph: String!
    blockNumber: Int!
    blockHash: Bytes!
    indexer: Bytes
  ): Bytes
}

This allows the indexer agent to provide a block number and hash to be able to obtain a POI even if this block is not cached in the Ethereum blocks cache. Prior to this, the POI would be null if this wasn't the case, even if the subgraph deployment in question was up to date, leading to the indexer missing out on indexing rewards.

Misc

  • Fix non-determinism caused by not (always) correctly reverting dynamic sources when handling reorgs.
  • Integrate the query cache into subscriptions to improve their performance.
  • Add graphman crate for managing Graph Node infrastructure.
  • Improve query cache logging.
  • Expose indexing status port (8030) from Docker image.
  • Remove support for unnecessary data sources templates inside subgraph data sources. They are only supported at the top level.
  • Avoid sending empty store events through the database.
  • Fix database connection deadlocks.
  • Rework the codebase to use anyhow instead of failure.
  • Log stack trace in case of database connection timeouts, to help with root-causing.
  • Fix stack overflows in GraphQL parsing.
  • Disable fulltext search by default (it is nondeterministic and therefore not currently supported in the network).

0.20.0

NOTE: JSONB storage is no longer supported. Do not upgrade to this release if you still have subgraphs that were deployed with a version before 0.16. They need to be redeployed before updating to this version.

You can check if you have JSONB subgraphs by running the query select count(*) from deployment_schemas where version='split' in psql. If that query returns 0, you do not have JSONB subgraphs and it is safe to upgrde to this version.

Feature: _meta field

Subgraphs sometimes fall behind, be it due to failing or the Graph Node may be having issues. The _meta field can now be added to any query so that it is possible to determine against which block the query was effectively executed. Applications can use this to warn users if the data becomes stale. It is as simple as adding this to your query:

_meta {
  block {
    number
    hash
  }
}

Feature: Non-fatal errors

Indexing errors on already synced subgraphs no longer need to cause the entire subgraph to grind to a halt. Subgraphs can now be configured to continue syncing in the presence of errors, by simply skipping the problematic handler. This gives subgraph authors time to correct their subgraphs while the nodes can continue to serve up-to-date the data. This requires setting a flag on the subgraph manifest:

features:
  - nonFatalErrors

And the query must also opt-in to querying data with potential inconsistencies:

foos(first: 100, subgraphError: allow) {
  id
}

If the subgraph encounters and error the query will return both the data and a graphql error with the message indexing_error.

Note that some errors are still fatal, to be non-fatal the error must be known to be deterministic. The _meta field can be used to check if the subgraph has skipped over errors:

_meta {
  hasIndexingErrors
}

The features section of the manifest requires depending on the graph-cli master branch until the next version (after 0.19.0) is released.

Ethereum

  • Support for tuple[] (#1973).
  • Support multiple Ethereum endpoints per network with different capabilities (#1810).

Performance

  • Avoid cloning results assembled from partial results (#1907).

Security

  • Add cargo-audit to the build process, update dependencies (#1998).

0.19.2

  • Add GRAPH_ETH_CALL_BY_NUMBER environment variable for disabling EIP-1898 (#1957).
  • Disable ipfs.cat by default, as it is non-deterministic (#1958).

0.19.1

  • Detect reorgs during query execution (#1801).
  • Annotate SQL queries with the GraphQL query ID that caused them (#1946).
  • Fix potential deadlock caused by reentering the load manager semaphore (#1948).
  • Fix fulltext query issue with optional and unset fields (#1937 via #1938).
  • Fix build warnings with --release (#1949 via #1953).
  • Dependency updates: async-trait, chrono, wasmparser.

0.19.0

  • Skip trace_filter on empty blocks (#1923).
  • Ensure runtime hosts are unique to avoid double-counting, improve logging (#1904).
  • Add administrative Postgres views (#1889).
  • Limit the GraphQL skip argument in the same way as we limit first (#1912).
  • Fix GraphQL fragment bugs (#1825).
  • Don't crash node and show better error when multiple graph nodes are indexing the same subgraph (#1903).
  • Add a query semaphore to allow to control the number of concurrent queries and subscription queries being executed (#1802).
  • Call Ethereum contracts by block hash (#1905).
  • Fix fetching the correct function ABI from the contract ABI (#1886).
  • Add LFU cache for historical queries (#1878, #1879, #1891).
  • Log GraphQL queries only once (#1873).
  • Gracefully fail on a null block hash and encoding failures in the Ethereum adapter (#1872).
  • Improve metrics by using labels more (#1868, ...)
  • Log when decoding a contract call result fails to decode (#1842).
  • Fix Ethereum node requirements parsing based on the manifest (#1834).
  • Speed up queries that involve checking for inclusion in an array (#1820).
  • Add better error message when blocking a query due to load management (#1822).
  • Support multiple Ethereum nodes/endpoints per network, with different capabilities (#1810).
  • Change how we index foreign keys (#1811).
  • Add an experimental Ethereum node config file (#1819).
  • Allow using GraphQL variables in block constraints (#1803).
  • Add Solidity struct array / Ethereum tuple array support (#1815).
  • Resolve subgraph names in a blocking task (#1797).
  • Add environmen variable options for sensitive arguments (#1784).
  • USe blocking task for store events (#1789).
  • Refactor servers, log GraphQL panics (#1783).
  • Remove excessive logging in the store (#1772).
  • Add dynamic load management for GraphQL queries (#1762, #1773, #1774).
  • Add ability to block certain queries (#1749, #1771).
  • Log the complexity of each query executed (#1752).
  • Add support for running against read-only Postgres replicas (#1746, #1748, #1753, #1750, #1754, #1860).
  • Catch invalid opcode reverts on Geth (#1744).
  • Optimize queries for single-object lookups (#1734).
  • Increase the maximum number of blocking threads (#1742).
  • Increase default JSON-RPC timeout (#1732).
  • Ignore flaky network indexers tests (#1724).
  • Change default max block range size to 1000 (#1727).
  • Fixed aliased scalar fields (#1726).
  • Fix issue inserting fulltext fields when all included field values are null (#1710).
  • Remove frequent "GraphQL query served" log message (#1719).
  • Fix bigDecimal.devidedBy (#1715).
  • Optimize GraphQL execution, remove non-prefetch code (#1712, #1730, #1733, #1743, #1775).
  • Add a query cache (#1708, #1709, #1747, #1751, #1777).
  • Support the new Geth revert format (#1713).
  • Switch WASM runtime from wasmi to wasmtime and cranelift (#1700).
  • Avoid adding order by clauses for single-object lookups (#1703).
  • Refactor chain head and store event listeners (#1693).
  • Properly escape single quotes in strings for SQL queries (#1695).
  • Revamp how Graph Node Docker image is built (#1644).
  • Add BRIN indexes to speed up revert handling (#1683).
  • Don't store chain head block in SubgraphDeployment entity (#1673).
  • Allow varying block constraints across different GraphQL query fields (#1685).
  • Handle database tables that have text columns where they should have enums (#1681).
  • Make contract call cache collision-free (#1680).
  • Fix a SQL query in cleanup_cached_blocks (#1672).
  • Exit process when panicking in the notification listener (#1671).
  • Rebase ethabi and web3 forks on top of upstream (#1662).
  • Remove parity-wasm dependency (#1663).
  • Normalize BigDecimal values, limit BigDecimal exponent (#1640).
  • Strip nulls from strings (#1656).
  • Fetch genesis block by number 0 instead of "earliest" (#1658).
  • Speed up GraphQL query execution (#1648).
  • Fetch event logs in parallel (#1646).
  • Cheaper block polling (#1646).
  • Improve indexing status API (#1609, #1655, #1659, #1718).
  • Log Postgres contention again (#1643).
  • Allow User-Agent in CORS headers (#1635).
  • Docker: Increase startup wait timeouts (Postgres, IPFS) to 120s (#1634).
  • Allow using Bytes for id fields (#1607).
  • Increase Postgres connection pool size (#1620).
  • Fix entities updated after being removed in the same block (#1632).
  • Pass log_index to mappings in place of transaction_log_index (required for Geth).
  • Don't return __typename to mappings (#1629).
  • Log warnings after 10 successive failed eth_call requests. This makes it more visible when graph-node is not operating against an Ethereum archive node (#1606).
  • Improve use of async/await across the codebase.
  • Add Proof Of Indexing (POI).
  • Add first implementation of subgraph grafting.
  • Add integration test for handling Ganache reverts (#1590).
  • Log all GraphQL and SQL queries performed by a node, controlled through the GRAPH_LOG_QUERY_TIMING environment variable (#1595).
  • Fix loading more than 200 dynamic data sources (#1596).
  • Fix fulltext schema validation (includes fields).
  • Dependency updates: anyhow, async-trait, bs58, blake3, bytes, chrono, clap, crossbeam-channel derive_more, diesel-derive-enum, duct, ethabi, git-testament, hex-literal, hyper, indexmap, jsonrpc-core, mockall, once_cell, petgraph, reqwest, semver, serde, serde_json, slog-term, tokio, wasmparser.

0.18.0

NOTE: JSONB storage is deprecated and will be removed in the next release. This only affects subgraphs that were deployed with a graph-node version before 0.16. Starting with this version, graph-node will print a warning for any subgraph that uses JSONB storage when that subgraph starts syncing. Please check your logs for this warning. You can remove the warning by redeploying the subgraph.

Feature: Fulltext Search (#1521)

A frequently requested feature has been support for more advanced text-based search, e.g. to power search fields in dApps. This release introduces a @fulltext directive on a new, reserved _Schema_ type to define fulltext search APIs that can then be used in queries. The example below shows how such an API can be defined in the subgraph schema:

type _Schema_
  @fulltext(
    name: "artistSearch"
    language: en
    algorithm: rank
    include: [
      {
        entity: "Artist"
        fields: [
          { name: "name" }
          { name: "bio" }
          { name: "genre" }
          { name: "promoCopy" }
        ]
      }
    ]
  )

This will add a special database column for Artist entities that can be used for fulltext search queries across all included entity fields, based on the tsvector and tsquery features provided by Postgres.

The @fulltext directive will also add an artistSearch field on the root query object to the generated subgraph GraphQL API, which can be used as follows:

{
  artistSearch(text: "breaks & electro & detroit") {
    id
    name
    bio
  }
}

For more information about the supported operators (like the & in the above query), please refer to the Postgres documentation.

Feature: 3Box Profiles (#1574)

3Box has become a popular solution for integrating user profiles into dApps. Starting with this release, it is possible to fetch profile data for Ethereum addresses and DIDs. Example usage:

import { box } from '@graphprotocol/graph-ts'

let profile = box.profile("0xc8d807011058fcc0FB717dcd549b9ced09b53404")
if (profile !== null) {
  let name = profile.get("name")
  ...
}

let profileFromDid = box.profile(
  "id:3:bafyreia7db37k7epoc4qaifound6hk7swpwfkhudvdug4bgccjw6dh77ue"
)
...

Feature: Arweave Transaction Data (#1574)

This release enables accessing Arweave transaction data using Arweave transaction IDs:

import { arweave, json } from '@graphprotocol/graph-ts'

let data = arweave.transactionData(
  "W2czhcswOAe4TgL4Q8kHHqoZ1jbFBntUCrtamYX_rOU"
)

if (data !== null) {
  let data = json.fromBytes(data)
  ...
}

Feature: Data Source Context (#1404 via #1537)

Data source contexts allow passing extra configuration when creating a data source from a template. As an example, let's say a subgraph tracks exchanges that are associated with a particular trading pair, which is included in the NewExchange event. That information can be passed into the dynamically created data source, like so:

import { DataSourceContext } from "@graphprotocol/graph-ts";
import { Exchange } from "../generated/templates";

export function handleNewExchange(event: NewExchange): void {
  let context = new DataSourceContext();
  context.setString("tradingPair", event.params.tradingPair);
  Exchange.createWithContext(event.params.exchange, context);
}

Inside a mapping of the Exchange template, the context can then be accessed as follows:

import { dataSource } from '@graphprotocol/graph-ts'

...

let context = dataSource.context()
let tradingPair = context.getString('tradingPair')

There are setters and getters like setString and getString for all value types to make working with data source contexts convenient.

Feature: Error Handling for JSON Parsing (#1588 via #1578)

With contracts anchoring JSON data on IPFS on chain, there is no guarantee that this data is actually valid JSON. Until now, failure to parse JSON in subgraph mappings would fail the subgraph. This release adds a new json.try_fromBytes host export that allows subgraph to gracefully handle JSON parsing errors.

import { json } from '@graphprotocol/graph-ts'

export function handleSomeEvent(event: SomeEvent): void {
  // JSON data as bytes, e.g. retrieved from IPFS
  let data = ...

  // This returns a `Result<JSONValue, boolean>`, meaning that the error type is
  // just a boolean (true if there was an error, false if parsing succeeded).
  // The actual error message is logged automatically.
  let result = json.try_fromBytes(data)

  if (result.isOk) { // or !result.isError
    // Do something with the JSON value
    let value = result.value
    ...
  } else {
    // Handle the error
    let error = result.error
    ...
  }
}

Ethereum

  • Add support for calling overloaded contract functions (#48 via #1440).
  • Add integration test for calling overloaded contract functions (#1441).
  • Avoid eth_getLogs requests with block ranges too large for Ethereum nodes to handle (#1536).
  • Simplify eth_getLogs fetching logic to reduce the risk of being rate limited by Ethereum nodes and the risk of overloading them (#1540).
  • Retry JSON-RPC responses with a -32000 error (Alchemy uses this for timeouts) (#1539).
  • Reduce block range size for trace_filter requests to prevent request timeouts out (#1547).
  • Fix loading dynamically created data sources with topic0 event handlers from the database (#1580).
  • Fix handling contract call reverts in newer versions of Ganache (#1591).

IPFS

  • Add support for checking multiple IPFS nodes when fetching files (#1498).

GraphQL

  • Use correct network when resolving block numbers in time travel queries (#1508).
  • Fix enum field validation in subgraph schemas (#1495).
  • Prevent WebSocket connections from hogging the blocking thread pool and freezing the node (#1522).

Database

  • Switch subgraph metadata from JSONB to relational storage (#1394 via #1454, #1457, #1459).
  • Clean up large notifications less frequently (#1505).
  • Add metric for Postgres connection errors (#1484).
  • Log SQL queries executed as part of the GraphQL API (#1465, #1466, #1468).
  • Log entities returned by SQL queries (#1503).
  • Fix several GraphQL prefetch / SQL query execution issues (#1523, #1524, #1526).
  • Print deprecation warnings for JSONB subgraphs (#1527).
  • Make sure reorg handling does not affect metadata of other subgraphs (#1538).

Performance

  • Maintain an in-memory entity cache across blocks to speed up store.get (#1381 via #1416).
  • Speed up revert handling by making use of cached blocks (#1449).
  • Speed up simple queries by delaying building JSON objects for results (#1476).
  • Resolve block numbers to hashes using cached blocks when possible (#1477).
  • Improve GraphQL prefetching performance by using lateral joins (#1450 via #1483).
  • Vastly reduce memory consumption when indexing data sources created from templates (#1494).

Misc

  • Default to IPFS 0.4.23 in the Docker Compose setup (#1592).
  • Support Elasticsearch endpoints without HTTP basic auth (#1576).
  • Fix --version not reporting the current version (#967 via #1567).
  • Convert more code to async/await and simplify async logic (#1558, #1560, #1571).
  • Use lossy, more tolerant UTF-8 conversion when converting strings to bytes (#1541).
  • Detect when a node is unresponsive and kill it (#1507).
  • Dump core when exiting because of a fatal error (#1512).
  • Update to futures 0.3 and tokio 0.2, enabling async/await (#1448).
  • Log block and full transaction hash when handlers fail (#1496).
  • Speed up network indexer tests (#1453).
  • Fix Travis to always install Node.js 11.x. (#1588).
  • Dependency updates: bytes, chrono, crossbeam-channel, ethabi, failure, futures, hex, hyper, indexmap, jsonrpc-http-server, num-bigint, priority-queue, reqwest, rust-web3, serde, serde_json, slog-async, slog-term, tokio, tokio-tungstenite, walkdir, url.